dighem iii sur - ontario...flight lines were flown with a line separation of 150 metres in an...

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DIGHEM111 SURVEY

42C08SE8673 2. t 1094 GLASGOW 010

Report #1030

FOR

TENOGA CONSULTANTS INC.

MURRAY LAKE AREA, ONTARIO

l

l NTS 42 C

l

RECEIVED

I APR 26 1988

l MINING LANDS SECTION

lDIGHEM SURVEYS fc PROCESSING INC. D.L. Mcconnell

MISSISSAUGA, ONTARIO Geophysicist l April 20, 1988

H-DLM-27

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l ll SUMMARY

l A total of 649 line-km of survey was flown with a

m DIGHEM111 system as per an agreement dated January 27,

1988, for Tenoga Consultants Inc., over three survey blocks

l in the Murray Lake area, Ontario.

l The EM survey mapped several discrete bedrock

M conductors. These conductors generally have flanking or

direct correlation with magnetic anomalies. The EM 7200 Hz

l data was used to produce resistivity maps which show the

conductive properties of the survey area. The total field

l and enhanced magnetic contour maps yield valuable

information about the magnetic -rock units and bedrock

B structures within the survey area. The VLF data show

B numerous, moderately strong trends, some of which may

reflect narrow, conductive bedrock sources.

lThe survey area exhibits potential as a host for both

l conductive massive sulphide deposits and weakly conductive

m zones of disseminated mineralization. Some features appear

to warrant further investigation using surface exploration

l techniques. A comparison of the various geophysical

parameters, compiled with geological and geochemical

l information, should be useful in selecting targets for

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follow-up work.

l ll The use of Dighera's imaging workstation may provide

additional useful information from the survey. Current

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processing techniques can yield structural details which may

be important in further defining the geologic setting.

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42C08SE8673 2.11094 GLASGOW

CONTENTS

Section

INTRODUCTION . . .. . . . . . . . . . . . . .. . . ................. l- l

SURVEY RESULTS . . . . . . . . . . . . . . . . . . . . . ... . . . ........ 2- l

THE SURVEY PRODUCTS........................... 2- l

GENERAL DISCUSSION.. . . . . . . . . . . . . . . . . . . . . . . . . . . 2- l

CONDUCTOR DESCRIPTIONS.... . . .... ... .... . . . ... . 2- 9Area A .. . . . . . . . . . . . . . . . . . . . . . . . . .. . ...... 2- 9Area B . .. ... . . . . . . . . . . . . ... . . . . . .. . . . . . .. 2-10Area C ................... . . . . . . . . . . . . . . . . 2-12

SURVEY EQUIPMENT .. . ..... . . ....................... 3- l

DATA PROCESSING PROCEDURES ....................... 4- lBase Map.................................. 4- lElectromagnetic Anomalies................. 4- lResistivity.............................. . 4- 2EM Magnetite.............................. 4- 2Total Field Magnetics..................... 4- 2Enhanced Magnetics........................ 4- 2Magnetic Derivatives...................... 4- 3VLF ........................... . . . . . . . . . . . . 4- 3Digital Profiles.......................... 4- 4Contour, Colour and Shadow Map Displays... 4- 4

BACKGROUND INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 5- l

ELECTROMAGNETICS ...................... . . . .... 5- lGeometric interpretation.................. 5- 2Discrete conductor analysis ........ . . . . .. 5- 2X-type electromagnetic responses ... .. . .. . 5-10The thickness parameter................... 5-11Resistivity mapping .. . .. . .... . . . . . ... .. . . 5-12Interpretation in conductive environments. 5-16Reduction of geologic noise............... 5-18EM magnetite mapping . . . . . . . . . . . . . . . . . . . .. 5-19Recognition of culture .. . . . . . . . . . . . . . . . . . 5-21

MAGNETICS............... . . . . . . . . . . . . . . . . . . . . . . 5-24

VLF . .................................. . . . . . . . 5-27

APPENDIX

A. List of PersonnelB. Statement of QualificationsC. EM Anomaly List

010C


LOCATION MAP

840 I5

Scale 1:250,000

FIGURE 1

THE SURVEY AREA

0 IE '

84000'


LOCATION MAP

48*15'

840 I5 84000'

Seal* 1:250,000

FIGURE 2

THE SURVEY AREA


- 1-1 -

INTRODUCTION

A DIGHEM111 electromagnetic/resistivity/magnetic/VLF

survey was flown for Tenoga Consultants Inc., as per an

agreement dated January 27, 1988, over three survey blocks

in the Murray Lake area, Ontario (Figures l and 2). These

blocks are located on NTS sheet 42 C.

Survey coverage consisted of approximately 649 line-km.

Flight lines were flown with a line separation of 150 metres

in an azimuthal direction of O'/ISO* for areas A and B, and

45*7225* for area C. Tie lines were flown perpendicular to

the survey line directions.

The survey employed the DIGHEM*H electromagnetic

system. Ancillary equipment consisted of a magnetometer,

radio altimeter, video camera, analog and digital recorders,

a VLF receiver and an electronic navigation system.

This report is divided into sections for convenience.

Section 2 describes the geophysical results. Section 3

provides details on the equipment used in the survey and

lists the recorded data and computed parameters. Section 4

reviews the data processing procedures, with further

information on the various parameters provided in Section 5.

- 1-2 -l

Not all of our products have been purchased as part of

l the survey contract. However, they can be acquired. Our

review of these products in Sections 4 and 5 may help you

l determine if they should be purchased. Our suggestions in

m this regard are summarized in Table 2-1.

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- 2-1 -

SURVEY RESULTS

SURVEY PRODUCTS

l Table 2-1 lists the products which can be obtained from

your survey. Those which are part of the contract are

l indicated in this table by showing the presentation scale.

m These total 15 maps. Note particularly those products which

are recommended for your survey area. The recommendations

l are based on the information content of products which would

contribute to either reducing the cost of follow-up and/or

l increasing the likelihood of exploration success.

GENERAL DISCUSSIONl

lThe survey results are shown on 3 separate map sheets

g for each parameter. Tables 2-2, 2-3 and 2-4 summarize the

EM responses on the electromagnetic anomaly maps with

respect to conductance grade and interpretation.

lThe electromagnetic anomaly maps show the anomaly

l locations with the interpreted conductor type, dip,

conductance and depth being indicated by symbols. Direct

m magnetic correlation is also shown if it exists. Bedrock

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- 2-2 -

Table 2-1 Plots Available from your Survey

NO. OF MAP SHEETS

Electromagnetic Anomalies 3

Probable Bedrock Conductors

Resistivity ( 900 Hz)

Resistivity ( 7,200 Hz) 3

EM Magnetite

Total Field Magnetics 3

Enhanced Magnetics 3

Vertical Gradient Magnetics -

2nd Vertical Derivative Magnetics-

Magnetic Susceptibility -

VLF {Tx #1) Annapolis, Maryland 3

VLF (Tx #2) Cutler, Maine

Apparent Depth ( 900 Hz)

Apparent Depth ( 7,200 Hz)

Overburden Thickness -

Digital Profiles

ANOMALY MAP

15,840

*

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

PROFILES ON MAP

N/A

N/A

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CONTOURSINK

N/A

N/A

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15,840

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15,840

15,840

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COLOR

N/A

N/A

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Worksheet profiles

Interpreted profiles

SHADOW MAP

N/A

N/A

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15,840

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N/A Not available*** Highly recommended due to its overall information content** Recommended* Qualified recommendation, as it may be useful in local areas

Not recommended 15,840 Scale of delivered map, i.e,, 1:15,840

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EM ANOMALY STATISTICS

CONDUCTORGRADE

76 543 21X

TOTAL

CONDUCTOR MODEL

D BS

TOTAL

- 2-3 -

TABLE 2-2

FOR THE MURRAY LAKE AREA, AREA A,

CONDUCTANCE RANGESEIMENS (MHOS)

> 10050 - 10020 - 5010 - 205-10 1 - 5

< 1INDETERMINATE

MOST LIKELY SOURCE

DISCRETE BEDROCK CONDUCTOR DISCRETE BEDROCK CONDUCTORCONDUCTIVE COVER

ONT.

NUMBER OFRESPONSES

00 1

1520 404739

162

NUMBER OF RESPONSES

51 1893

162

(SEE EM MAP LEGEND FOR EXPLANATIONS)

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1 1 111111111111111

t

EM ANOMALY STATISTICS FOR

CONDUCTORGRADE

765 4321X

TOTAL

CONDUCTORMODEL

DB S

TOTAL

(SEE EM MAP

- 2-4 -

TABLE 2-3

THE MURRAY LAKE AREA, AREA B


> 10050-10020 - 50 10 - 205-101 - 5

< 1INDETERMINATE

MOST LIKELY SOURCE

DISCRETE BEDROCK CONDUCTORDISCRETE BEDROCK CONDUCTOR CONDUCTIVE COVER

LEGEND FOR EXPLANATIONS)

, ONT.

NUMBER OFRESPONSES

001 115112

21

NUMBER OFRESPONSES

28

11

21

1

1 1111111111111111

1

EM ANOMALY STATISTICS

CONDUCTORGRADE

7 654 321 X

TOTAL

CONDUCTORMODEL

DBS L

TOTAL

(SEE EM

- 2-5 -

TABLE 2-4

FOR THE MURRAY LAKE AREA, AREA C


> 100 50 - 10020 - 5010 - 20 5-101 - 5

< 1 INDETERMINATE

MOST LIKELY SOURCE

DISCRETE BEDROCK CONDUCTORDISCRETE BEDROCK CONDUCTORCONDUCTIVE COVER CULTURE

MAP LEGEND FOR EXPLANATIONS )

, ONT.

NUMBER C*1RESPONSES

0 0107

1253 47

120

NUMBER OFRESPONSES

63

97 14

120

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conductors are indicated by the interpretive symbols "D"

J (for thin dikes) or "B" (for other conductor geometries).

Surficial conductors are identified by the interpretive

symbol "S". The symbol "E" denotes the edge of a broad

l conductive unit.

l EM "anomalies" by definition should reflect discrete

conductors. Wide bedrock conductors or flat-lying

l conductive units, whether from surficial or bedrock sources,

m give rise to broad anomalous responses on the EM profiles.

These may not appear on the electromagnetic anomaly maps if

l they have a regional character rather than a locally

anomalous character. These broad conductors, which more

l closely approximate a half space model, are maximum coupled

to the horizontal (coplanar) coil-pair and are clearly

' evident on the resistivity parameter.

lApparent resistivity contour maps were prepared from

l the 7200 Hz coplanar data. Most of the broad zones of low

resistivity appear to correspond to surficial features.

" Lake sediment in the survey area typically yields

l resistivities of 150 ohm-m to 1,000 ohm-m. Some bedrock

conductors yield resistivities of about 100 ohm-m, which

l makes it difficult to distinguish bedrock from surficial

conductivity on the basis of resistivity alone.

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- 2-7 -

VLF information from the transmitter at Annapolis,

Maryland, was presented as contours of the filtered total

field. Trends on the data show a preferred east/west

orientation.

lSome of the trends that occur in the more resistive

l areas may reflect narrow conductors within the bedrock. VLF

H trends correlate with bedrock conductors such as^

10060C-10290C on the map from area A, 20050A-20060A from

l area B, and 30230A-30280A from area C. Therefore, the VLF

method may be used to locate these conductors on the ground.

lMany of the VLF trends in the survey areas parallel the

" inferred strikes of the magnetic features. These trends may

B reflect bedrock stratigraphy or faulted contacts.

l Magnetic maps were produced, and provide interesting

information. The maps show numerous, narrow, northwest/

l southeast striking, dike-like magnetic units. The enhanced

m magnetic maps for areas A and B reveal somewhat broader,

east/west striking magnetic units as well. The conductors

l in area A appear to be associated with one of these

east/west trending units.

lB There is ample evidence on the magnetic maps which

" suggests the area has been subjected to moderate deformation

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- 2-8 -

and/or alteration. These structural complexities are

evident on the contour maps as variations in magnetic

intensity, irregular patterns, and as offsets or changes in

strike direction.

lIf a specific magnetic intensity can be assigned to the

l rock type which is believed to host the target

mineralization, it may be possible to select areas of higher

* priority on the basis of the total field magnetic maps,

l This is based on the assumption that the magnetite content

of the host rocks will give rise to a limited range of

l contour values which will permit differentiation of various

lithological units. The magnetic results, in conjunction

m with the other geophysical parameters, should provide

U valuable information which can be used to effectively map

the geology and structure in the survey area. Coloured maps

l of the total magnetic field should be very helpful in

defining the lithology of the property.

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- 2-9 -

CONDUCTOR DESCRIPTIONS

Area A

Zone A

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This narrow zone of conductivity strikes east/west.

l Northwest/southeast striking, magnetic, dike-like units

cross this zone near conductors 10060C, 10110C, 10240B and

10310B. The enhanced magnetic map reveals linear magnetic

j highs, which parallel the inferred conductor axes. A few

anomalies, such as 10220D, 10260D, 10280B, 10330C and 10360E

l appear to correlate directly with magnetic peaks. Most of

the conductors however, flank magnetic units, possibly

l within contacts.

The anomalies are indicative of multiple, narrow,

l moderately conductive, bedrock layers. The calculated depth

channel indicates that the conductors may dip to the north

l on some lines. For example, this occurs on lines 10180 to

10210 and 10290.

Conductor 10310C

This conductor is indicative of an isolated, near vertical-

dipping, magnetic bedrock source. It appears to occur near

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- 2-10 -

the intersection of a northwest/southeast striking magnetic

dike, and an east/west trending linear magnetic unit.

Conductors 10370D, 10380F, 10430D

These may reflect isolated, weakly conductive, non

magnetic bedrock sources. Conductor 10370D may have a

component due to culture, as it coincides with a road.

lConductor 10370B-10470A

These anomalies appear to be loosely associated with an

l east/west trending magnetic unit. This unit may be folded

or faulted in the vicinity of anomalies 10470A and 10490A.

B Conductor 10490A-10500A may result from a continuation of

B this source.

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lm This moderately strong conductor may also be magnetic.

It appears to dip to the north. The resistivity and VLP

l parameters indicate a continuous source of conductivity

extending from anomaly 20050A to 20100A. This may result

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Area B

Conductor 20050A-20060A

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from surficial sources, which are coincident with these

bedrock conductors.

* Conductors 20090A, 20090B

These conductors appear to be associated with the

flanks of a magnetic unit. The resistivity and VLF contours

suggest that these anomalies may result from the same

l source. The anomaly shapes indicate that the conductive

bedrock body was not crossed perpendicular to strike by the

l flight lines. The conductors yield resistivities of about

M 10 ohm-m on the 900 Hz parameter.

l Conductor 20090C-20100A

m This conductor appears to flank a northeast/southwest

trending, weakly magnetic unit.

lConductor 20120A

lThis weak conductor occurs on strike with conductor

l 20090C-20100A. It occurs within a non-magnetic zone that

trends northeast/southwest. This zone may be due to a

structural break, or a weakly conductive non-magnetic

bedrock unit.

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- 2-12 -

Conductors 29010B, 20170A, 20170B

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These very weak responses may reflect a narrow

l conductive, bedrock source. The anomalies flank a strong

magnetic peak. Anomaly 29010B correlates directly with a

l limb of magnetic material, which extends northwest of this

M peak. The enhanced magnetic contours suggest a northeast/

southwest trending structural break, which may extend from

l fiducial 5634 on line 20150 to fiducial 1509 on line 20190.

These conductors may be associated with this break.

lArea C

lConductors 30230A-30280A, 30270B-30280B

These conductors are indicative of narrow, moderately

l conductive, bedrock layers. These layers flank a northwest/

southeast trending, magnetic, dike-like unit. Anomalies

30250B, 30260B, 30270C may reflect very weak conductivity

associated with the north flank of this magnetic unit.

l Anomalies 30790B, 30810B, 30830C and 30860A are located

on the flanks of a strongly magnetic, plug-like unit. These

l anomalies have been interpreted as being surficial based on

m their profile shapes, but may warrant further attention if

they occur in favourable geological settings. Anomaly

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30810B correlates with a strong magnetite response.

g Magnetite suppresses the inphase channels, which results in

overstated resistivities.

B Anomalies 30850B to 30980A reflect a narrow, vertical

source. As they are coincident with a road and do not

l correlate with any magnetic features, they have been

labelled L, which denotes a line source due to culture.

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- 3-1 -

SURVEY EQUIPMENT AND FLIGHT RECORDS

The geophysical instruments and aircraft employed in

the survey were as follows:

Electromagnetic System

Type: DIGHEM111 System

Coil orientations/frequencies: coaxial l 900 Hzcoplanar/ 900 Hz coplanar/ 7,200 Hz

Channels recorded:

Sensitivity:

Sample rate:

3 inphase channels 3 quadrature channels

0.2 ppm at 900 Hz 0.4 ppm at 7,200 Hz

10 per second

The electromagnetic system utilizes a multi-coil

coaxial/coplanar technique to energize conductors in

different directions. The coaxial transmitter coil is

vertical with its axis in the flight direction. The

coplanar coils are horizontal. The secondary fields are

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sensed simultaneously by means of receiver coils which are

maximum coupled to their respective transmitter coils. The

system yields an inphase and a

transmitter-receiver coil-pair

coil separation is 8 metres.

are housed in a bird which

helicopter.

Excellent resolution and

quadrature channel from each

. The transmitter-receiver

The electromagnetic sensors

is towed 30 m below the

discrimination of conductors

is ensured by the fast sample rate. When a common frequency

is used on two orthogonal coil-pairs (coaxial and coplanar),

inphase and quadrature "difference channel" parameters are

obtained. These parameters are useful in discriminating

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between bedrock and surficial

conductors may exhibit similar

Magnetometer

Type: Scintrex Cesium

Sensitivity: 0.01 nT

Sample rate: 10 per second

conductors* even though such

conductance values.

The magnetometer sensor was towed in a bird 15 m below

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the helicopter.

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Magnetic Base Station

lM Type: Geometrics 826A digital recording proton

precession

l Sensitivity: 0.50 nT

Sample rate: once per 5 seconds

l The base station magnetometer records the diurnal

B variations of the earth's magnetic field. The clock of the

B base station is synchronized with that of the airborne

system to permit subsequent removal of diurnal drift.

lVLF System

m Type: Herz Industries Totem-2A

Sensitivity: Q.1%

I Stations: Annapolis, Maryland; NSS 21.4 kHz Cutler, Maine; NAA 24.0 kHz

lThe VLF receiver measures the total field and vertical

l quadrature components of the secondary VLF field. The

receivers were tuned to NSS as the primary station and to

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NAA as the secondary station. The VLF sensor was towed in a

bird 10 m below the helicopter.

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Radar Altimeter

Type: Sperry AA 220

* Sensitivity: l ft

lAnalog Recorder

lType: RMS GR33 dot-matrix graphics recorder

B The analog profiles were recorded on chart paper in the

aircraft during the survey. Table 3-1 lists the geophysical

l data channels.

l Digital Data Acquisition

Type: Scintrex CDI6

l Tape Deck: RMS TCR12, 6400 bpi, tape cartridge recorder

g The digital data were used to generate a number of

computed parameters. Both measured and computed parameters

were plotted as "digital profiles" during data processing,

as shown in Table 3-2.

g In Table 3-2, the log resistivity scale of 0.06

decade/mm means that the resistivity changes by an order of

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- 3-5 -

Table 3-1. The Analog Profiles

Channel Number

aaCXQCPUCP1QCP2ICP2QALTVL1TVL1QVL2TVL2QCMGCPMGF

Parameter

coaxial inphase ( 900 Hz)coaxial quad { 900 Hz)coplanar inphase ( 900 Hz)coplanar quad { 900 Hz)c!oplanar inphase (7200 Hz)coplanar quad (7200 Hz)altimeterVLF-total: primary stationVLF-quad: primary stationVLF-total: secondary stn.VLF-quad: secondary stn.magnetics, coarsemagnetics, fine

Sensitivity per irm

2*5 ppm2.5 ppm2.5 ppm2.5 ppm

5 ppm5 ppm3 m2%2%2%2%

10 nT2 nT

Designation on digital profile

CXI ( 900 Hz)CXQ ( 900 Hz)CPI ( 900 Hz)CPQ ( 900 Hz)CPI (7200 Hz)CPQ (7200 Hz)ALT

MAG

Table 3-2. The Digital Profiles

ChannelName (Freq)

MAGALTCXI ( 900 Hz)CXQ ( 900 Hz)CPI ( 900 Hz)CPQ ( 900 Hz)CPI (7200 Hz)CPQ (7200 Hz)

DIFI ( 900 Hz)DIFQ ( 900 Hz)CDTRES ( 900 Hz)RES (7200 Hz)DP ( 900 Hz)DP (7200 Hz)

Observed parameters

magneticsbird heightvertical coaxial coil-pair inphasevertical coaxial coil-pair quadraturehorizontal coplanar coil-pair inphasehorizontal coplanar coil-pair quadraturehorizontal coplanar coil-pair inphasehorizontal coplanar coil-pair quadrature

Computed Parameters

difference function inphase from CXJ and CPIdifference function quadrature from CXQ and CPQconductancelog resistivitylog resistivityapparent depthapparent depth

Scaleunits/mm

10 nT6 m2 ppm2 ppm2 ppm2 ppm4 ppm4 ppm

2 ppm2 ppm1 grade.06 decade.06 decade6 m6 m

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magnitude in 16.5 mm. The resistivities at O, 33 and 67 mm

l up from the bottom of the digital profile are respectively

m l , 100 and 10,000 ohm-m.

l Tracking Camera

l Type: Panasonic Video

l Fiducial numbers were recorded on each image. This

procedure ensures accurate correlation of analog and digital

8 data with respect to visible features on the ground.

Navigation System

" Type: Del Norte electronic positioning system

H Sensitivity: l m

Sample rate: once per second

lThe navigation system uses ground based transponder

l stations which transmit distance information back to the

m helicopter. The ground stations are set up well away from

the survey area and are positioned such that the signals

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- 3-7 -

cross the survey block at an angle between 30" and 150".

After site selection, a baseline is flown at right angles to

a line drawn through the transmitter sites to establish an

arbitrary coordinate system for the survey area. The

onboard Central Processing Unit takes the two transponder

distances and determines the helicopter position relative to

these two ground stations in cartesian coordinates.

The cartesian coordinates are transformed to match the

base map during data processing. This is accomplished by

correlating a number of prominent topographical features

with the navigational data points. The use of numerous

visual tie points serves two purposes: to correct for

any distortions in the photomosaic and to accurately relate

the navigation data to the map sheet.

Aircraft

Company:

Type:

Frontier Helicopters Limited

Aerospatial AS350B

Registration C-GOLV

The helicopter flew at an average airspeed of 110 km/h

at a height of 60 m.

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DATA PROCESSING PROCEDURESl ————————————

m* The following products are available from your survey

data. Those which are not part of the survey contract may

l be acquired later. Refer to Table 2-1 for a summary of

these products.

l— Base Map

™ The base map of the survey area was prepared from

H aerial photographs. The base map was used during the course

of the survey for visual reference and for subsequent flight

l path recovery. The geophysical data are presented on

duplicate copies of the same base map.

m Electromagnetic Anomalies

Anomalous electromagnetic responses are selected and

l analysed by computer to provide a preliminary

electromagnetic anomaly map. This preliminary EM map is

l used, by the geophysicist, in conjunction with the digital

m profiles (described below), to produce the final EM anomaly

map showing interpreted conductors. These include bedrock,

l surficial and cultural conductors. A map containing only

bedrock conductors can be generated, if desired.

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- 4-2 -

Resistivity

The apparent resistivity in ohm-m may be generated from

the inphase and quadrature EM components for any of the

frequencies, using a pseudo-layer halfspace model. A

l resistivity map portrays all the EM information for that

frequency over the entire survey area. This contrasts with

p the electromagnetic anomaly map which provides information

— only over interpreted conductors. The large dynamic range

" makes the resistivity parameter an excellent mapping tool.

lEM Magnetite

l The apparent percent magnetite by weight is computed

wherever magnetite produces a negative inphase EM response.

m Total Field Magnetics

The aeromagnetic data are corrected for diurnal

l variation using the magnetic base station data. The

regional IGRF field is removed from the data if required

l under the terms of the contract.

Enhanced Magnetics

l The total field magnetic data are subjected to a

processing algorithm. This algorithm enhances the response

l of magnetic bodies in the upper 500 m and attenuates the

mm response of deeper bodies. The resulting enhanced magnetic

' map provides a better definition and resolution of

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near-surface magnetic units. It also identifies weak

l magnetic features which may not be evident on the total

B field magnetic map. However, regional magnetic variations,

™ and magnetic lows caused by remanence, are better defined on

l the total field magnetic map. The technique is described in

more detail in Section 5.

lMagnetic Derivatives

B The total field magnetic data may be subjected to a

H variety of filtering techniques to yield:

vertical gradient

l second vertical derivative

magnetic susceptibility with reduction to the pole

l upward/downward continuations

All these filtering techniques improve the recognition

l of near-surface magnetic bodies with the exception of upward

continuation. Any of the above parameters can be produced

l at your request. Dighem's proprietary enhanced magnetic

B technique (described immediately above) is designed to

provide you with a general "all-purpose" map, combining the

l more useful features of the above parameters.

l VLF

— The VLF data are digitally filtered to remove long

* wavelengths such as those caused by variations in the

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transmitted field strength.

lB Digital Profiles

™ Distance-based profiles of the digitally recorded

B geophysical data are generated and plotted by computer.

These profiles also contain the calculated parameters which

g are used in the interpretation process. These can be

produced both as a worksheet prior to interpretation, and

B also in the final corrected form after interpretation. The

B corrected profiles display electromagnetic anomalies with

their respective interpretive symbols. The differences

l between the worksheets and the final corrected form occur

only with respect to the calculated parameters. The

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measured geophysical data are the same for both the

worksheet and corrected profiles.

l Contour, Colour and Shadow Map Displays

The geophysical data are interpolated onto a regular

l grid at a 2.5 mm interval using a cubic spline technique.

H The resulting grid is suitable for generating a contour map

of excellent quality.

lSolid color maps are produced by interpolating the grid

l down to the pixel size. The parameter is then color coded

based on amplitude to provide a solid color "contour" map.

i i i i i i i i i i i i i i i i i i i

- 4-5 -

Dighem software provides several shadowing techniques. Both monochromatic (ccnnonly green) or polychromatic (full color) naps nay be produced. Monochromatic shadow naps are often preferred over polychronatic naps for reasons of clarity.

Spot Sun

The spot sun technique tends to mimic nature. The sun occupies a spot in the sky at a defined azimuth and inclination. The surface of the data grid casts shadows. This is the standard technique used by industry to produce monochromatic shadow maps.

A characteristic of the spot sun technique is that shadows are cast in proportion to how well the sunlight intersects the feature. Features vihich are almost parallel to the sun's azimuth may cast no shadow at all. To avoid this problem, Dighem1 s hemispheric sun technique may be employed.

Hemispheric Sun

The hemispheric sun technique was developed by Dighem. The method involves lighting up a hemisphere. If, for example, a north hemispheric sun is selected, features of all strikes will have their north side in sun and their south side in shadow. The hemispheric sun lights up all features, without a bias caused by strike. The method yields sharply defined monochromatic shadows.

The hemispheric sun technique always improves shadow casting, particularly where folding and cross-cutting structures occur. Nevertheless, it is important to center the hemisphere perpendicular to the regional strike. Features vihich strike parallel to the center of the hemisphere result in ambiguity. This is because the two sides of the feature nay yield alternating patterns of sun and shadow. If this proves to be a problem in your survey area, Dighem1 s omni sun technique may be employed.

CPKJ Sun

The ami sun technique was also developed by Dighem. The survey area is centered within a ring of sunlight. This lights up all features without any strike bias. The result is brightly defined monochromatic features with diffuse shadows.

Haiti Sun

Two or three spot suns, with different azimuths, nay be combined in a single presentation. The shadows are displayed on one nap by the use of different colors, e.g., by using a green sun and a red sun. Some users find the interplay of colors reduces the clarity of the shadowed product.

PolydirouBtic Maps

Any of the above monochromatic shadow maps can be combined with the standard contour-type solid color map. The result is a polychromatic shadow nap. Such naps are esthetically pleasing, and are preferred by some users. A disadvantage is that ambiguity exists between changes in amplitude and changes in shadow.

Fig. 4-1 Shadow Mapping

l

l

l

l

l

l

l

l

l

l

l

- 4-6 -

i i i

Monochromatic shadow maps are generated by employing an

l artificial sun to cast shadows on a surface defined by the

m geophysical grid. There are many variations in the

shadowing technique, as shown in Figure 4-1. The various

l shadow techniques may be applied to total field or enhanced

magnetic data, magnetic derivatives, VLF, resistivity, etc.

g Of the various magnetic products, the shadow of the enhanced

B magnetic parameter is particularly suited for defining

geological structures with crisper images and improved

resolution.

l

l

l

l

- 5-1 -

BACKGROUND INFORMATION

l l l l

This section provides background information on

l parameters which are available from your survey data. Thosey

which are not obtained as part of the survey contract may be

generated later from raw data which is available on your

digital archive tape.

ELECTROMAGNETICS

DIGHEM electromagnetic responses fall into two general

classes, discrete and broad. The discrete class consists of

sharp, well-defined anomalies from discrete conductors such

l as sulfide lenses and steeply dipping sheets of graphite and

sulfides. The broad class consists of wide anomalies from

l conductors having a large horizontal surface such as flatly

— dipping graphite or sulfide sheets, saline water-saturated

* sedimentary formations, conductive overburden and rock, and

•j geothermal zones. A vertical conductive slab with a width

of 200 m would straddle these two classes.

lThe vertical sheet (half plane) is the most common

B model used for the analysis of discrete conductors. All

H anomalies plotted on the electromagnetic map are analyzed

according to this model. The following section entitled

l

l

l l l—

- 5-2 -

Discrete Conductor Analysis describes this model in detail,

including the effect of using it on anomalies caused by

broad conductors such as conductive overburden.

l The conductive earth (half space) model is suitable for

broad conductors. Resistivity contour maps result from the

J use of this model. A later section entitled Resistivity

Mapping describes the method further, including the effect

m of using it on anomalies caused by discrete conductors such

m as sulfide bodies.

l Geometric interpretation

The geophysical interpreter attempts to determine the

l geometric shape and dip of the conductor. Figure 5-1 shows

M typical DIGHEM anomaly shapes which are used to guide the

geometric interpretation.

lDiscrete conductor analysis

l The EM anomalies appearing on the electromagnetic map

— are analyzed by computer to give the conductance (i.e.,

" conductivity-thickness product) in mhos of a vertical sheet

l model. This is done regardless of the interpreted geometric

shape of the conductor. This is not an unreasonable

l

l

l

Conductor l ii ilocation

Channel CXI X \ J \

Channel CPI /"\y\ S M \

Channel DIFI ^ V" -J V"

u

Conductor

line vertical

thin dike

Ratio of

amplitudes

CXI /CPI 4/1 2/1

i

A

/V \

V

\dipping

thin dike

variable

1

A

A

Dvertical or

dipping

thick dike

variable

1 S, H E t l 111

l ' ' '

ATA^Y AT ~-

V. y WutTjAnnnn 1 f J*

sphere; wide S - conductive overburden flight line

horizontal horizontal H - thick conductive cover parallel to

disk; ribbon; or wide conductive rock conductor

metal roof; large fenced unit

small fenced area E - edge effect from wide

yard conductor

1/4 variable 1/2 < 1/4

CJ)t

O)

Fig. 5-1 Typical DIGHEM anomaly shapes

111

9- 5-4 -

procedure, because the computed conductance increases as the

1

1

1

1

1

1

1

1

1

1

electrical quality of the conductor increases, regardless of

its true shape. DIGHEM anomalies are divided into six

grades of conductance, as shown in Table 5-1 below. The

conductance in mhos is the reciprocal of resistance in ohms.

Table 5-1 . EM Anomaly Grades

Anomaly Grade Mho Range

6 > 995 50-994 20-493 10-192 5-91 < 5

The conductance value is a geological parameter because

it is a characteristic of the conductor alone. It

is independent of frequency, flying height or

generally

depth of

burial, apart from the averaging over a greater portion of

the conductor as height increases. 1 Small anomalies from

deeply buried strong conductors are not confused with small

1

1

1

anomalies from shallow weak conductors because the former

will have larger conductance values.

Conductive overburden generally produces broad EM

responses which may not be shown as anomalies on the EM

1

1

1

1 This statement is an approximation. DIGHEM, with itsshort coil separation, tends to yield larger and more accurate conductance values than airborne systemshaving a larger coil separation.

l l l l l

l

- 5-5 -

maps. However, patchy conductive overburden in otherwise

resistive areas can yield discrete anomalies with a

conductance grade (cf. Table 5-1) of 1, or even of 2 for

conducting clays which have resistivities as low as 50

l ohm-m. in areas where ground resistivities can be below 10

ohm-m, anomalies caused by weathering variations and similar

g causes can have any conductance grade. The anomaly shapes

— from the multiple coils often allow such conductors to be

™ recognized, and these are indicated by the letters S, H, and

sometimes E on the map (see legend on the EM map).

l For bedrock conductors, the higher anomaly grades

indicate increasingly higher conductances. Examples:

B DIGHEM's New Insco copper discovery (Noranda, Canada)

m yielded a grade 4 anomaly, as did the neighbouring

copper-zinc Magusi River ore body; Mattabi (copper-zinc,

l Sturgeon Lake, Canada) and Whistle (nickel, Sudbury,

Canada) gave grade 5; and DIGHEM's Montcalm nickel-copper

l discovery (Timmins, Canada) yielded a grade 6 anomaly.

m Graphite and sulfides can span all grades but, in any

particular survey area, field work may show that the

l different grades indicate different types of conductors.

l Strong conductors (i.e., grades 5 and 6) are character-

M istic of massive sulfides or graphite. Moderate conductors

l

- 5-6 -

l l l

(grades 3 and 4) typically reflect graphite or sulfides of a

g less massive character, while weak bedrock conductors

— (grades 1 and 2) can signify poorly connected graphite or

™ heavily disseminated sulfides. Grade V conductors may not

M respond to ground EM equipment using frequencies less than

2000 Hz.

lThe presence of sphalerite or gangue can result in

l ore deposits having weak to moderate conductances. As

m an example, the three million ton lead-zinc deposit of

Restigouche Mining Corporation near Bathurst, Canada,

l yielded a well defined grade 1 conductor. The 10 percent

by volume of sphalerite occurs as a coating around the fine

l grained massive pyrite, thereby inhibiting electrical

— conduction.

l Faults, fractures and shear zones may produce anomalies

which typically have low conductances (e.g., grades 1

g and 2). Conductive rock formations can yield anomalies of

— any conductance grade. The conductive materials in such

" rock formations can be salt water, weathered products such

H as clays, original depositional clays, and carbonaceous

material .

lOn the interpreted electromagnetic map, a letter

m identifier and an interpretive symbol are plotted beside the

l

l l l l l

l l

- 5-7 -

EM grade symbol. The horizontal rows of dots, under the

interpretive symbol, indicate the anomaly amplitude on the

flight record. The vertical column of dots, under the

anomaly letter, gives the estimated depth. In areas where

l anomalies are crowded, the letter identifiers, interpretive

symbols and dots may be obliterated. The EM grade symbols,

l however, will always be discernible, and the obliterated

— information can be obtained from the anomaly listing

* appended to this report.

lThe purpose of indicating the anomaly amplitude by dots

l is to provide an estimate of the reliability of the conduc-

tance calculation. Thus, a conductance value obtained from

B a large ppm anomaly (3 or 4 dots) will tend to be accurate

B whereas one obtained from a small ppm anomaly (no dots)

could be quite inaccurate. The absence of amplitude dots

l indicates that the anomaly from the coaxial coil-pair is

5 ppm or less on both the inphase and quadrature channels,

l Such small anomalies could reflect a weak conductor at the

m surface or a stronger conductor at depth. The conductance

grade and depth estimate illustrates which of these

l possibilities fits the recorded data best.

l Flight line deviations occasionally yield cases where

two anomalies, having similar conductance values but

l ll

dramatically different depth estimates, occur close together

l on the same conductor. Such examples illustrate the

— reliability of the conductance measurement while showing

™ that the depth estimate can be unreliable. There are a

B number of factors which can produce an error in the depth

estimate, including the averaging of topographic variations

l by the altimeter, overlying conductive overburden, and the

location and attitude of the conductor relative to the

l flight line. Conductor location and attitude can provide an

m erroneous depth estimate because the stronger part of the

conductor may be deeper or to one side of the flight line,

l or because it has a shallow dip. A heavy tree cover can

also produce errors in depth estimates. This is because the

l depth estimate is computed as the distance of bird from

H conductor, minus the altimeter reading. The altimeter can

lock onto the top of a dense forest canopy. This situation

l yields an erroneously large depth estimate but does not

affect the conductance estimate.

lB Dip symbols are used to indicate the direction of dip

™ of conductors. These symbols are used only when the anomaly

l shapes are unambiguous, which usually requires a fairly

resistive environment.

lA further interpretation is presented on the EM map by

l means of the line-to-line correlation of anomalies, which is

l

l l l l l

l

- 5-9 -

based on a comparison of anomaly shapes on adjacent lines.

This provides conductor axes which may define the geological

structure over portions of the survey area. The absence of

conductor axes in an area implies that 'anomalies could not

l be correlated from line to line with reasonable confidence.

l DIGHEM electromagnetic maps are designed to provide

— a correct impression of conductor quality by means of the

™ conductance grade symbols. The symbols can stand alone

B with geology when planning a follow-up program. The actual

conductance values are printed in the attached anomaly list

l for those who wish quantitative data. The anomaly ppm and

depth are indicated by inconspicuous dots which should not

" distract from the conductor patterns, while being helpful

m to those who wish this information. The map provides an

interpretation of conductors in terms of length, strike and

l dip, geometric shape, conductance, depth, and thickness (see

below). The accuracy is comparable to an interpretation

l from a high quality ground EM survey having the same line

spacing.

l The attached EM anomaly list provides a tabulation of

anomalies in ppm, conductance, and depth for the vertical

l sheet model. The EM anomaly list also shows the conductance

B and depth for a thin horizontal sheet (whole plane) model,

l

l l l - 5-10 -

but only the vertical sheet parameters appear on the

l EM map. The horizontal sheet model is suitable for a flatly

— dipping thin bedrock conductor such as a sulfide sheet

™ having a thickness less than 10 m. The 'list also shows the

l resistivity and depth for a conductive earth (half space)

model, which is suitable for thicker slabs such as thick

l conductive overburden. In the EM anomaly list, a depth

value of zero for the conductive earth model, in an area of

l

l

thick cover, warns that the anomaly may be caused by

conductive overburden.

l Since discrete bodies normally are the targets of

EM surveys, local base (or zero) levels are used to compute

l local anomaly amplitudes. This contrasts with the use

B of true zero levels which are used to compute true EM

amplitudes. Local anomaly amplitudes are shown in the

l EM anomaly list and these are used to compute the vertical

sheet parameters of conductance and depth. Not shown in the

l EM anomaly list are the true amplitudes which are used to

— compute the horizontal sheet and conductive earth

™ parameters.

lX-type electromagnetic responses

DIGHEM maps contain x-type EM responses in addition

to EM anomalies. An x-type response is below the noise

l ll

threshold of 3 ppm, and reflects one of the following: a

l weak conductor near the surface, a strong conductor at depth

. (e.g., 100 to 120 m below surface) or to one side of the

™ flight line, or aerodynamic noise. Those responses that

l have the appearance of valid bedrock anomalies on the flight

profiles are indicated by appropriate interpretive symbols

l (see EM map legend). The others probably do not warrant

further investigation unless their locations are of

l considerable geological interest.

The thickness parameter

l DIGHEM can provide an indication of the thickness of

a steeply dipping conductor. The amplitude of the coplanar

l anomaly (e.g., CPI channel on the digital profile) increases

H relative to the coaxial anomaly (e.g., CXI) as the apparent

thickness increases, i.e., the thickness in the horizontal

l plane. (The thickness is equal to the conductor width if

the conductor dips at 90 degrees and strikes at right angles

gj to the flight line.) This report refers to a conductor as

m thin when the thickness is likely to be less than 3 m, and

™ thick when in excess of 10 m. Thick conductors are

l indicated on the EM map by (crescents). For base metal

exploration in steeply dipping geology, thick conductors can

be high priority targets because many massive sulfide ore

l

l

l l

- 5-12 -

bodies are thick, whereas non-economic bedrock conductors

l are often thin. The system cannot sense the thickness when

the strike of the conductor is subparallel to the flight

B line, when the conductor has a shallow dip, when the anomaly

B amplitudes are small, or when the resistivity of the

environment is below 100 ohm-m.

lResistivity mapping

l Areas of widespread conductivity are commonly

m encountered during surveys. In such areas, anomalies can

be generated by decreases of only 5 m in survey altitude as

l well as by increases in conductivity. The typical flight

record in conductive areas is characterized by inphase and

l quadrature channels which are continuously active. Local

— EM peaks reflect either increases in conductivity of the

™ earth or decreases in survey altitude. For such conductive

l areas, apparent resistivity profiles and contour maps are

necessary for the correct interpretation of the airborne

l data. The advantage of the resistivity parameter is

— that anomalies caused by altitude changes are virtually

™ eliminated, so the resistivity data reflect only those

M anomalies caused by conductivity changes. The resistivity

analysis also helps the interpreter to differentiate between

l conductive trends in the bedrock and those patterns typical

l

l


- 5-13 -

of conductive overburden. For example, discrete conductors

will generally appear as narrow lows on the contour map

and broad conductors (e.g., overburden) will appear as

wide lows.

The resistivity profile (see table in Appendix A) and

the resistivity contour map present the apparent resistivity

using the so-called pseudo-layer (or buried) half space

model defined by Fraser (1978) 2 . This model consists of

a resistive layer overlying a conductive half space. The

depth channel (see Appendix A) gives the apparent depth

below surface of the conductive material. The apparent

depth is simply the apparent thickness of the overlying

resistive layer. The apparent depth (or thickness)

parameter will be positive when the upper layer is more

resistive than the underlying material, in which case the

apparent depth may be quite close to the true depth.

The apparent depth will be negative when the upper

layer is more conductive than the underlying material, and

will be zero when a homogeneous half space exists. The

apparent depth parameter must be interpreted cautiously

2 Resistivity mapping with an airborne multicoil electro magnetic system: Geophysics, v. 43, p. 144-172.

l l

- 5-14 -

lbecause it will contain any errors which may exist in the

l measured altitude of the EM bird (e.g., as caused by a dense

tree cover). The inputs to the resistivity algorithm are

l the inphase and quadrature components of the coplanar

m coil-pair. The outputs are the apparent resistivity of the

conductive half space (the source) and the sensor-source

l distance. The flying height is not an input variable,

and the output resistivity and sensor-source distance are

l independent of the flying height. The apparent depth,

M discussed above, is simply the sensor-source distance minus

* the measured altitude or flying height. Consequently,

l errors in the measured altitude will affect the apparent

depth parameter but not the apparent resistivity parameter.

lThe apparent depth parameter is a useful indicator

" of simple layering in areas lacking a heavy tree cover.

M The DIGHEM system has been flown for purposes of permafrost

mapping, where positive apparent depths were used as a

l measure of permafrost thickness. However, little quantita

tive use has been made of negative apparent depths because

l the absolute value of the negative depth is not a measure of

m the thickness of the conductive upper layer and, therefore,

is not meaningful physically. Qualitatively, a negative

l apparent depth estimate usually shows that the EM anomaly is

caused by conductive overburden. Consequently, the apparent

l

l l

- 5-15 -

depth channel can be of significant help in distinguishing

l between overburden and bedrock conductors.

™ The resistivity map often yields more useful informa-

•j tion on conductivity distributions than the EM map. In

comparing the EM and resistivity maps, keep in mind the

l following:

l

l

(a) The resistivity map portrays the absolute value

of the earth's resistivity, where resistivity -

1/conductivity.

l(b) The EM map portrays anomalies in the earth's

g resistivity. An anomaly by definition is a

— change from the norm and so the EM map displays

' anomalies, (i) over narrow, conductive bodies and

l (ii) over the boundary zone between two wide

formations of differing conductivity.

lm The resistivity map might be likened to a total

" field map and the EM map to a horizontal gradient in the

B direction of flight 3 . Because gradient maps are usually

l 3 The gradient analogy is only valid with regard to the identification of anomalous locations.

l

l l

l

l

- 5-16 -

more sensitive than total field maps, the EM map therefore

f is to be preferred in resistive areas. However, in conduc-

tive areas, the absolute character of the resistivity map

^ usually causes it to be more useful than ' the EM map.

lInterpretation in conductive environments

l Environments having background resistivities below

30 ohm-m cause all airborne EM systems to yield very large

l responses from the conductive ground. This usually

m prohibits the recognition of discrete bedrock conductors.

The processing of DIGHEM data, however, produces six

l channels which contribute significantly to the recognition

of bedrock conductors. These are the inphase and quadrature

l difference channels (DIFI and DIFQ), and the resistivity and

H depth channels (RES and DP) for each coplanar frequency; see

table in Appendix A.

lThe EM difference channels (DIFI and DIFQ) eliminate

f up to 99% of the response of conductive ground, leaving

— responses from bedrock conductors, cultural features (e.g.,

" telephone lines, fences, etc.) and edge effects. An edge

l effect arises when the conductivity of the ground suddenly

changes, and this is a source of geologic noise. While edge

l effects yield anomalies on the EM difference channels, they

l ll

g

l l

do not produce resistivity anomalies. Consequently, the

l resistivity channel aids in eliminating anomalies due to

j edge effects. On the other hand, resistivity anomalies

™ will coincide with the most highly conductive sections of

l conductive ground, and this is another source of geologic

noise. The recognition of a bedrock conductor in a

l conductive environment therefore is based on the anomalous

responses of the two difference channels (DIFI and DIFQ)

l and the two resistivity channels (RES). The most favourable

M s ituation is where anomalies coincide on all four channels.

l The DP channels, which give the apparent depth to the

conductive material, also help to determine whether a

l conductive response arises from surficial material or from a

•j conductive zone in the bedrock. When these channels ride

above the zero level on the digital profiles (i.e., depth is

l negative), it implies that the EM and resistivity profiles

are responding primarily to a conductive upper layer, i.e.,

l conductive overburden. If both DP channels are below the

j zero level, it indicates that a resistive upper layer

™ exists, and this usually implies the existence of a bedrock

l conductor. If the low frequency DP channel is below the

zero level and the high frequency DP is above, this suggests

that a bedrock conductor occurs beneath conductive cover.

l l

- 5-18 -

The conductance channel CDT identifies discrete

l conductors which have been selected by computer for

appraisal by the geophysicist. Some of these automatically

B selected anomalies on channel CDT are discarded by the

B geophysicist. The automatic selection algorithm is

intentionally oversensitive to assure that no meaningful

l responses are missed. The interpreter then classifies the

anomalies according to their source and eliminates those

l

that are not substantiated by the data, such as those

arising from geologic or aerodynamic noise.

l Reduction of geologic noise

Geologic noise refers to unwanted geophysical

l responses. For purposes of airborne EM surveying, geologic

— noise refers to EM responses caused by conductive overburden

" and magnetic permeability. It was mentioned above that

l the EM difference channels (i.e., channel DIFI for inphase

and DIFQ for quadrature) tend to eliminate the response of

l conductive overburden. This marked a unique development

in airborne EM technology, as DIGHEM is the only EM system

" which yields channels having an exceptionally high degree

B of immunity to conductive overburden.

l Magnetite produces a form of geological noise on the

inphase channels of all EM systems. Rocks containing less

l

l ll

than ^ magnetite can yield negative inphase anomalies

l caused by magnetic permeability. When magnetite is widely

— distributed throughout a survey area, the inphase EM chan-

' nels may continuously rise and fall reflecting variations

l in the magnetite percentage, flying height, and overburden

thickness. This can lead to difficulties in recognizing

l deeply buried bedrock conductors, particularly if conductive

overburden also exists. However, the response of broadly

l distributed magnetite generally vanishes on the inphase

m d ifference channel DIFI. This feature can be a significant

aid in the recognition of conductors which occur in rocks

l containing accessory magnetite.

l EM magnetite mapping

. The information content of DIGHEM data consists of a

™ combination of conductive eddy current response and magnetic

l permeability response. The secondary field resulting from

conductive eddy current flow is frequency-dependent and

l consists of both inphase and quadrature components, which

— are positive in sign. On the other hand, the secondary

" field resulting from magnetic permeability is independent

l of frequency and consists of only an inphase component which

is negative in sign. When magnetic permeability manifests

l itself by decreasing the measured amount of positive

l

l

- 5-20 -

inphase, its presence may be difficult to recognize.

However, when it manifests itself by yielding a negative

inphase anomaly (e.g., in the absence of eddy current flow),

its presence is assured. in this latter' case, the negative

component can be used to estimate the percent magnetite

content.

A magnetite mapping technique was developed for the

coplanar coil-pair of DIGHEM. The technique yields a

channel (designated FED) which displays apparent weight

percent magnetite according to a homogeneous half space

model. The method can be complementary to magnetometer

mapping in certain cases. Compared to magnetometry, it is

far less sensitive but is more able to resolve closely

spaced magnetite zones, as well as providing an estimate

of the amount of magnetite in the rock. The method is

sensitive to T/4% magnetite by weight when the EM sensor is

at a height of 30 m above a magnet it ic half space. It can

individually resolve steeply dipping narrow magnetite-rich

bands which are separated by 60 m. Unlike magnetometry, the

EM magnetite method is unaffected by remanent magnetism or

magnetic latitude.

Refer to Fraser, 1981, Magnetite mapping with a multicoil airborne electromagnetic system: Geophysics, v. 46, p. 1579-1594.

l ll

The EM magnetite mapping technique provides estimates

g of magnetite content which are usually correct within a

— factor of 2 when the magnetite is fairly uniformly

" distributed. EM magnetite maps can 'be generated when

l magnetic permeability is evident as indicated by anomalies

in the magnetite channel FEO.

lLike magnetometry, the EM magnetite method maps

l only bedrock features, provided that the overburden is

m characterized by a general lack of magnetite. This

contrasts with resistivity mapping which portrays the

l combined effect of bedrock and overburden.

l Recognition of culture

H Cultural responses include all EM anomalies caused by

man-made metallic objects. Such anomalies may be caused by

l inductive coupling or current gathering. The concern of the

interpreter is to recognize when an EM response is due to

g culture. Points of consideration used by the interpreter,

. when coaxial and coplanar coil-pairs are operated at a

™ common frequency, are as follows:

l1. Channels CXS and CPS (see Appendix A) measure 50 and

l 60 Hz radiation. An anomaly on these channels shows

l

l

- 5-22 -

l l l

that the conductor is radiating cultural power. Such

l an indication is normally a guarantee that the conduc-

— tor is cultural. However, care must be taken to ensure

" that the conductor is not a geologic body which strikes

M across a power line, carrying leakage currents.

l 2. A flight which crosses a "line" (e.g., fence, telephone

line, etc.) yields a center-peaked coaxial anomaly

l and an m-shaped coplanar anomaly.^ When the flight

m crosses the cultural line at a high angle of inter

section, the amplitude ratio of coaxial/coplanar

l (e.g., CXI/CPI) is 4. Such an EM anomaly can only be

caused by a line. The geologic body which yields

l anomalies most closely resembling a line is the

— vertically dipping thin dike. Such a body, however,

™ yields an amplitude ratio of 2 rather than 4.

l Consequently, an m-shaped coplanar anomaly with a

CXI/CPI amplitude ratio of 4 is virtually a guarantee

l that the source is a cultural line.

™ 3. A flight which crosses a sphere or horizontal disk

H yields center-peaked coaxial and coplanar anomalies

l 5 see Figure 5-1 presented earlier.

l

l


- 5-23 -

with a CXI/CPI amplitude ratio (i.e., coaxial/coplanar)

of 1/4. In the absence of geologic bodies of this

geometry, the most likely conductor is a metal roof or

small fenced yard.6 Anomalies 'of this type are

virtually certain to be cultural if they occur in an

area of culture.

4. A flight which crosses a horizontal rectangular body or

wide ribbon yields an m-shaped coaxial anomaly and a

center-peaked coplanar anomaly. In the absence of

geologic bodies of this geometry, the most likely

conductor is a large fenced area.6 Anomalies of this

type are virtually certain to be cultural if they occur

in an area of culture.

5. EM anomalies which coincide with culture, as seen on

the camera film, are usually caused by culture.

However, care is taken with such coincidences because

a geologic conductor could occur beneath a fence, for

example. In this example, the fence would be expected

to yield an m-shaped coplanar anomaly as in case #2

6 It is a characteristic of EM that geometrically similar anomalies are obtained from: (1) a planar conductor, and (2) a wire which forms a loop having dimensions identical to the perimeter of the equiva lent planar conductor.

l l

—

B

- 5-24 -

above. If, instead, a center-peaked coplanar anomaly

occurred, there would be concern that a thick geologic

conductor coincided with the cultural line.

M 6 . The above description of anomaly shapes is valid

when the culture is not conductively coupled to the

l environment. In this case, the anomalies arise from

inductive coupling to the EM transmitter. However,

l when the environment is quite conductive (e.g., less

m than 100 ohm-m at 900 Hz), the cultural conductor may

be conductively coupled to the environment. In this

l latter case, the anomaly shapes tend to be governed by

current gathering. Current gathering can completely

l distort the anomaly shapes, thereby complicating the

— identification of cultural anomalies. In such circum-

™ stances, the interpreter can only rely on the radiation

l channels CXS and CPS, and on the camera film.

MAGNETICS

lThe existence of a magnetic correlation with an EM

l anomaly is indicated directly on the EM map. In some

M geological environments, an EM anomaly with magnetic

correlation has a greater likelihood of being produced by

l

l

l l

- 5-25 -

sulfides than one that is non-magnetic. However, sulfide

g ore bodies may be non-magnetic (e.g., the Kidd Creek deposit

— near Timmins, Canada) as well as magnetic (e.g., the Mattabi

" deposit near Sturgeon Lake, Canada).

lThe magnetometer data are digitally recorded in

l the aircraft to an accuracy of one nT (i.e., one gamma) for

proton magnetometers, and 0.01 nT for cesium magnetometers,

l The digital tape is processed by computer to yield a total

m f ield magnetic contour map. When warranted, the magnetic

data also may be treated mathematically to enhance the

l magnetic response of the near-surface geology, and an

enhanced magnetic contour map is then produced. The

l response of the enhancement operator in the frequency domain

. is illustrated in Figure 5-2. This figure shows that the

— passband components of the airborne data are amplified

l 20 times by the enhancement operator. This means, for

example, that a 100 nT anomaly on the enhanced map reflects

l a 5 nT anomaly for the passband components of the airborne

— data.

fl The enhanced map, which bears a resemblance to a

downward continuation map, is produced by the digital

l bandpass filtering of the total field data. The enhancement

is equivalent to continuing the field downward to a level

l

lllllllllllllllllll

-5-26-

10 10-'

CYCLES/METRE

10-

Fig. 5-2 Frequency response of magneticenhancement operator for a sample Interval of 50 m.

l l l

(above the source) which is V20th of the actual

l sensor-source distance.

l

l

- 5-27 -

Because the enhanced magnetic map bears a resemblance

to a ground magnetic map, it simplifies the recognition

of trends in the rock strata and the interpretation of

l geological structure. It defines the near-surface local

geology while de-emphasizing deep-seated regional features.

l It primarily has application when the magnetic rock units

m are steeply dipping and the earth's field dips in excess

of 60 degrees.

lAny of a number of filter operators may be applied to

l the magnetic data, to yield vertical derivatives,

— continuations, magnetic susceptibility, etc. These may be

" displayed in contour, color or shadow.

l VLF

l VLF transmitters produce high frequency uniform

electromagnetic fields. However, VLF anomalies are not EM

™ anomalies in the conventional sense. EM anomalies primarily

B reflect eddy currents flowing in conductors which have been

energized inductively by the primary field. In contrast,

l VLF anomalies primarily reflect current gathering, which is

l

l


-5-28-

1.2

'tMIIIIIIII II IIIIIINIIII.^•tMiiiiihitiniiiiiini:im^

: Hill lUHl!! ill! i"

10"* ID'*

CYCLES t M ETRE

Fig. 5-3 Frequency response of VLF operator.

l l l - 5-29 -

a non-inductive phenomenon. The primary field sets up

J currents which flow weakly in rock and overburden, and these

— tend to collect in low resistivity zones. Such zones may be

™ due to massive sulfides, shears, river valleys and even

B unconformities.

l The VLF field is horizontal. Because of this, the

method is quite sensitive to the angle of coupling between

l the conductor and the transmitted VLF field. Conductors

m which strike towards the VLF station will usually yield a

stronger response than conductors which are nearly

l orthogonal to it.

l The Herz Industries Ltd Totem VLF-electromagnetometer

B measures the total field and vertical quadrature

™ components. Both these components are digitally recorded in

l the aircraft with a sensitivity of 0.1 percent. The total

field yields peaks over VLF current concentrations whereas

l the quadrature component tends to yield crossovers. Both

— appear as traces on the profile records. The total field

" data also are filtered digitally and displayed on a contour

l map, to facilitate the recognition of trends in the rock

strata and the interpretation of geologic structure.

lThe response of the VLF total field filter operator in

l the frequency domain (Figure 5-3) is basically similar to

l

l l

- 5-30 -

that used to produce the enhanced magnetic map

l (Figure 5-2). The two filters are identical along the

— abscissa but different along the ordinant. The VLF filter

~ removes long wavelengths such as those which reflect

U regional and wave transmission variations. The filter

sharpens short wavelength responses such as those which

l reflect local geological variations.

l Respectfully submitted,

l

I D.L. McConnell Geophysicist

l

l

l

l l

l

l

l

l


APPENDIX A

LIST OF PERSONNEL

The following personnel were involved in the acquisition, processing/ interpretation and presentation of data, relating to a DIGHEM* 1 * airborne geophysical survey carried out for Tenoga Consultants Inc., over a property in the Murray Lake area, Ontario.

Bill Cooke Survey Operations SupervisorPeter Moore Senior Geophysical OperatorGilles Pregent Pilot (Frontier Helicopters Ltd.)Paul Bottomley Computer ProcessorPaul A. Smith Interpretation SupervisorDouglas Mcconnell GeophysicistGary Hohs DraftsmanMary Anne Gravelle Word Processing Operator

The survey consisted of 649 km of coverage. Geophysical data were compiled utilizing a VAX 11-780 computer.

All personnel are employees of Dighem Surveys St Processing Inc., except for the pilot who is an employee of Frontier Helicopters Ltd.

DIGHEM SURVEYS St PROCESSING INC.

D. L. Mcconnell Geophysicist

Ref: Report #1030

I-DLM-27

APPENDIX B

STATEMENT OF QUALIFICATIONS

l l l l l1 1. Douglas L. Mcconnell of the City of Toronto, Province of

Ontario, do hereby certify that:

l 1. I am a geophysicist, residing at 740 Windermere Avenue,Toronto, Ontario M6S 3M3.

1 2. I am a graduate of Queens University, Kingston, Ontario, with a B.Se. Engineering, Geophysics (1984).

l

14. I was personally responsible for the interpretation of

the geophysical data described in this report.

I have been actively engaged in geophysical exploration since 1986.

l ll D ~bH D.L. Mcconnell

Geophysicist

l

l

l

l

l

l

I-DLM-27

APPENDIX C

EM ANOMALY LIST

1 1 1 1111111111111111

^^ 1030 AREA A

COAXIAL COPLANAR 900 HZ 900 HZ

ANOMALY/ REAL QUAD REAL QUAD FID/INTERP PPM PPM PPM PPM

LINE 10010 A 4359 S

LINE 10030 A 4013 S

LINE 10050A 3595 SB 3613 S

LINE 10060A 3464 S B 3451 SC 3410 D

LINE 10070A 3052 SB 3073 SC 3134 B?

LINE 10080A 2931 SB 2916 SC 2871 S?D 2859 S

LINE 10090A 2669 SB 2695 S C 2752 DD 2754 DE 2771 S

LINE 10100A 2536 SB 2517 SC 2493 SD 2478 DE 2475 D F 2463 S

LINE 10110A 2072 S

(FLIGHT 0 2

(FLIGHT 0 2

(FLIGHT0 51 3

(FLIGHT0 61 95 3

(FLIGHT0 21 20 3

(FLIGHT0 31 91 20 4

(FLIGHT0 50 40 40 20 6

(FLIGHT0 50 60 12 60 6 0 4

(FLIGHT0 11

.* ESTIMATED DEPTH

2) 1 2

2) 0 2

2)1 111 8

2)1 3 4 203 3

2)2 50 40 1

2)2 123 181 10 6

2)1 120 7 0 40 20 15

2)0 90 100 20 50 4 0 6

2)1 18

MAY BE

COPLANAR . 7200 HZ .

REAL QUAD . PPM PPM .

2

2

135

29 677

620

34271

17

61 82

49

370

1415 6

18

t

4 .

4 .t

,

39 .38 .

33 .108 .

3 .*

*

23 .40 .4 .

*

41 .207 .

4 .55 .

.

.79 .17 . 19 .4 .

125 .*

V

62 .32 .4 .

12 .10 . 46 .

*

58 .

UNRELIABLE. OF THE CONDUCTOR MAY BE DEEPER OR. LINE, OR BECAUSE OF A SHALLOW DIP

VERTICAL . HORIZONTAL CONDUCTIVE DIKE . SHEET EARTH

COND DEPTH*. COND DEPTH RESIS DEPTH SIEMEN M .SIEMEN M OHM-M M

-

-

•ci1

1 1

10

•ci•ci5

^•ci-1

•a•CI •CI-

•CI

•ai-31

Kl

BECAUSETO ONE

-

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616

0 7

44

00

63

05-0

50 0-0

52-

180 0

11

THESIDE

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.11

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1 11

*

111

,

11

t ™

1.*

11 1

.1

.

.11

t **

111

*

1

STRONGER

-

-

5636

21 37

205

2221

219

2538-82

2339 57-38

2745-

11469 80

22

PART

-

-

625662

172 289

1035

163182

1035

581342-

966

525733 962-

706

618758-

1035316 979

404

-

-

30

340

630

03-0

00

22-0

00-0

39 0

1

OF THE FLIGHT .OR OVERBURDEN EFFECTS.

1 1 1 11111111111111

^ 1030 AREA A



LINE 10110B 2085 SC 2152 B?D 2164 S

LINE 10120A 1898 SB 1871 S?C 1858 SD 1830 S

LINE 10130 A 1584 SB 1612 SC 1674 BD 1688 S

LINE 10140A 1411 SB 1406 SC 1371 D

LINE 10150A 842 SB 824 SC 789 D

LINE 10160A 610 S B 619 SC 632 SD 675 DE 676 DF 685 D

LINE 10170A 7092 DB 7107 S?

LINE 10180A 6849 SB 6835 S?

.

(FLIGHT0 40 20 3

(FLIGHT1 80 20 20 3

(FLIGHT 0 130 71 20 2

(FLIGHT0 50 71 5

(FLIGHT0 70 90 4

(FLIGHT0 2 0 40 102 41 20 2

(FLIGHT0 20 2

(FLIGHT1 21 1

.* ESTIMATED DEPTH

2)1 70 11 4

2)2 141 11 02 6

2) 1 130 110 10 2

2)0 60 110 4

2)0 130 50 2

2)0 2 1 120 190 30 20 2

D0 20 2

D1 20 1

MAY BE


*


112

20

120

13

3822

22911

17418

2 1612722

22

217

t

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58 .4 .

18 .t

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52 .4 .4 .

54 .*

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241 .116 .

4 .4 .

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46 .130 .21 .

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4 .t

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4 . 110 .82 .6 .4 .4 .

*

4 .4 .

4

*

4 .30 .

UNRELIABLE. OF THE CONDUCTOR MAY BE DEEPER OR

1

1

. LINE, OR BECAUSE OF A SHALLOW DIP


*


•CI-1

•ciB-

*a

•CI•CI.

-

1•CI

2

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6-0

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1304

700

148

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1.

1l

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1* ~

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1

STRONGER

30-21

22—-

105

1722—-

3651

188

2615

110

2725

204-~

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-98

PART

596-

435

488^

-219

328402

m.

-

701761

1035

540380312

471507

1035-"

--

-28

V

*

0-0

0—

-

50

11—

-

000

00

76

000-~

--

-83

OF THE FLIGHT .OR OVERBURDEN EFFECTS.

1 1 1 11111111111111

™ 1030 AREA A



LINE 10180 (FLIGHTC 6807 D 13 16D 6794 S 0 2

LINE 10190 (FLIGHT A 6499 S 0 4B 6556 D 12 10C 6557 D 12 10D 6574 S? 0 8

LINE 10200 (FLIGHTA 2185 813 B 2140 D 9 13C 2136 D 36 31D 2135 D 36 31E 2123 S 1 2

LINE 10210 (FLIGHTA 5293 S 4 7B 5240 D 1 2C 5237 D 12 9D 5223 S 0 3

LINE 10220 (FLIGHTA 1909 SOIB 1970 D 4 5C 1978 D 6 5D 1981 D 10 12E 1993 S 0 2

LINE 10230 (FLIGHTA 4512 SOIB 4458 D 8 9C 4455 D 6 9

LINE 10240 (FLIGHTA 4035 S 1 4B 4095 B? 1 2C 4104 D 1 2 D 4108 D 27 20

LINE 10250 (FLIGHTA 3868 S 1 3

*

D91

D 2993

3)0

1116160

D2173

3)01350

D000

1)000 0

1)0

.* ESTIMATED DEPTH MAY

1

1

142

767

16

4 1118152

10268

22363

8107

512

11

8

BE



262

212627

t

t

54 .4 .

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62 .18 .21 .

53 140 .

10 63

1057910

202

2028

89

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10 .77 .

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11 .18 .51 .

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34 .12 .16 .

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5 .4 .4 .

28 .9

t

5 .

UNRELIABLE. OF THE CONDUCTOR MAY BE DEEPER OR . LINE, OR BECAUSE OF A SHALLOW DIP


t


7-

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•a7

1516^

3-

13*:i

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318200

0 7240

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1200

0-

6

0

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*

t

1

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221

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1 1121

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1

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1

98-

5110410934

15 12964832

36-

13869

18203159110

7

208194190

206-

201

201

108-

2694653

355

476 1288028

1177

455-78

301

34110351035230

1050

103510351035

1035-

1035

1035*

55-

1169720

0 7829550

0-

9418

000

530

000

0-

0

0

STRONGER PART .TO ONE SIDE OF THE FLIGHT . OR OVERBURDEN EFFECTS.

1 1 1 11111111111111

^ 1030 AREA A



LINE 10250B 3826 DC 3820 DD 3814 D

LINE 10260A 3626 S8 3682 DC 3689 DD 3693 DE 3699 DF 3701 D

LINE 10270A 3269 S B 3229 DC 3224 DD 3219 D

LINE 10280A 2895 SB 2844 B C 2838 BD 2833 D

LINE 10290A 2642 SB 2709 DC 2715 DD 2720 D

LINE 10300 A 2056 SB 2004 D

LINE 10310A 1794 SB 1853 DC 1876 D

LINE 10320A 1652 S

*

(FLIGHT 1)630950960

(FLIGHT 1)250960

11 8 011 3 329 20 629 20 6

(FLIGHT 1)260

13 9 6356

16 8 2

(FLIGHT 1)221453 121

10 8 5

(FLIGHT 1)153

10 10 75 6 10

28 15 10

(FLIGHT 1) 022371

(FLIGHT 1)232372345

(FLIGHT 1)390

,* ESTIMATED DEPTH MAY

1

1

. OF

578

125

11111212

14 1010

7

57 26

8768

45

253

7

BE


*


92016

71434345252

10 313113

513

219

3171718

510

312

3

25

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8 .11 .13 .

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21 .21 .18 .18 .

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a

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6 . 4 .

15 .*

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11 .12 .

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20 .12 .

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10 .*

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UNRELIABLETHE CONDUCTOR MAY BE DEEPER OR



m


663

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131616

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416

34

11

299

23

a3

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BECAUSETO ONE

2930

0

3361730

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14171717

020

01752

3

THESIDE

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111

.111111

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1 111

t

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1112

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4

1

1

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1

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1

192205182

48212204207118202

47 207203202

25196

214

40154132136

20132

21206217

14

103510351035

738103510351035

751035

765103510351035

6291035

1035

265898336

165781

1713844

467*

000

0000

760

0 000

00

0

3106

86100

223

2164173

0

STRONGER PART .OF THE FLIGHT

OR OVERBURDEN EFFECTS.*

*

1 1 1 111111111111111

™ 1030 AREA A



LINE 10320 B 1594 B

LINE 10330A 1376 S B 1410 SC 1454 BD 1459 B

LINE 10340A 789 SB 827 S

LINE 10350A 4751 S

LINE 10360A 4983 SB 4976 S?C 4968 SD 4961 SE 4939 D

LINE 10370A 5116 SB 5128 BC 5157 SD 5167 B?

LINE 10380A 3066 SB 3058 BC 3050 SD 3040 SE 3022 SF 2997 D

LINE 10400A 3197 B B 3206 SC 3218 S

LINE 10410A 5832 D

(FLIGHT 1 2

(FLIGHT2 8 2 45 61 2

(FLIGHT0 41 2

(FLIGHT0 3

(FLIGHT1 51 22 51 26 5

(FLIGHT2 81 21 51 2

(FLIGHT1 65 51 ' 22 41 31 2

(FLIGHT1 100 40 4

(FLIGHT11 13

D 0 2

D1 16 0 70 50 2

D1 61 2

2)2 6

2)2 111 21 91 26 5

2)2 21 22 91 1

3)0 72 40 21 60 31 1

3)0 5 0 40 4

2)7 13



2

16 29142

12

6

92

352

13

332

362

6142

13112

32 168

18

*

*

4 .*

71 . 59 .22 .4 .

*

.27 .4 .

*

*

17 ...

20 .4 .

61 .4 .

15 .

.144 .

4 .75 .4 .

-

114 .38 .4 .

54 .53 .4 .

*

92 . 60 .33 .

*

86 .*

,* ESTIMATED DEPTH MAY BE UNRELIABLE . OF THE CONDUCTOR MAY BE DEEPER OR. LINE, OR BECAUSE OF A

1SHALLOW DIP



-

1 ^3^

^-

•CI

•CI

2-

10

2

1.

16-2

•ci

21

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7

BECAUSE TO ONE

-

6 0

10w

0-

0

0-

10.

38

26

2.

039-70-

9 200

24

THE SIDE

*

*

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1 11

t ~

*

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1t ™"

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1,

1

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1* ~

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11

* mm

11

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40-

37

32

40-

180

38

54.

7967-884

114 6015

52

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422 938

1035—

265-

342

499

424.97

239

317m.

922805-

8381009

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1035 801261

249

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0 00mf

0

0

0

0-

129

5

7.

00-00-

0 00

13

STRONGER PART . OF THE FLIGHT .

OR OVERBURDEN EFFECTS.

1 1 1 11111111111111

™ 1030 AREA A



LINE 10410 B 5841 SC 5901 S

LINE 10420A 6018 DB 5999 SC 5960 S

LINE 10430A 6089 BB 6091 DC 6121 SD 6174 B?

LINE 10440A 6289 DB 6275 SC 6256 S

LINE 10450A 6373 BB 6397 SC 6412 S

LINE 10460A 6569 SB 6552 S

LINE 10470A 6649 DB 6664 S C 6682 SD 6732 S

LINE 10480A 6825 S

LINE 10490A 6953 BB 6962 SC 7000 S

*

(FLIGHT 3 83 3

(FLIGHT10 111 23 2

(FLIGHT18 1618 161 11 2

(FLIGHT7 61 21 2

(FLIGHT

2) 2 120 10

2)7 131 20 4

2)4 114 130 21 2

2)4 71 21 2

2)16 14 10 152 42 5

(FLIGHT4 93 4

(FLIGHT11 94 9 1 22 4

(FLIGHT2 9

(FLIGHT1 21 50 2

.* ESTIMATED DEPTH

1

1

. OF

1 80 10

2)4 172 8

2)8 133 191 20 7

2)2 18

2)1 22 82 4

MAY BE



*

32 130 .48

3129

383522

1522

53104

4613

3136 2

22

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68 .

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32 .*

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37 .29 .61 .

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UNRELIABLETHE CONDUCTOR MAY BE DEEPER OR



*


21

7-

-CI

99-—

7•B

-

11

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23

92

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BECAUSETO ONE

160

10-0

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134609656

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00

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285-^

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3700

01

529

0

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STRONGER PART .OF THE FLIGHT t



1030 AREA A

COAXIAL COPLANAR COPLANAR . VERTICAL . HORIZONTAL CONDUCTIVE 900 HZ 900 HZ 7200 HZ . DIKE . SHEET EARTH

* *

ANOMALY/ REAL QUAD REAL QUAD REAL QUAD . COND DEPTH*. COND DEPTH RESIS DEPTH FID/INTERP PPM PPM PPM PPM PPM PPM .SIEMEN M .SIEMEN M OHM-M M

LINE 10500 A 7137 B?

LINE 10510 A 7415 S

(FLIGHT 0 2

(FLIGHT 1 2

2) 1

2)1

.* ESTIMATED DEPTH MAY BE UNRELIABLE BECAUSE THE STRONGER PART

. OF THE CONDUCTOR MAY BE DEEPER OR TO ONE SIDE OF THE FLIGHT

. LINE, OR BECAUSE OF A SHALLOW DIP OR OVERBURDEN EFFECTS.

1 11111111111111111

™ 1030 AREA B

ANOMALY/ FID/INTERP

LINE 20020A 912 SB 997 S?

LINE 20050 A 1836 BB 1811 S

LINE 20060A 2211 D

LINE 20070 A 2671 S

LINE 20080A 2836 S

LINE 20090A 3024 B? B 3033 B?C 3048 B?

LINE 20100A 4176 B?

LINE 20120A 5148 B?

LINE 20140 A 5405 SB 5471 S

LINE 20150A 5593 S?

LINE 20170A 5994 B?B 5985 B?

LINE 20250A 3309 S

LINE 20280A 3930 S

COAXIAL900 HZ

REAL QUAD PPM PPM

(FLIGHT0 60 2

(FLIGHT 1 11 2

(FLIGHT6 2

(FLIGHT 2 2

(FLIGHT1 1

(FLIGHT2 2 3 34 5

(FLIGHT0 3

(FLIGHT1 1

(FLIGHT 0 21 2

(FLIGHT1 2

(FLIGHT0 20 2

(FLIGHT0 1

(FLIGHT2 3

COPLANAR900 HZ

REAL QUAD PPM PPM

9)31

9) 01

9)7

9) 3

9)1

9)8

1515

9)2

9)1

9) 00

9)1

9)00

10)0

10)0

92

22

4

3

2

4 7

15

4

2

22

2

21

1

7

COPLANAR .7200 HZ .

REAL PPM

72

20

13

10

1

12 1834

10

2

22

2

l0

0

11

*

QUAD . PPM .

82 .4 .

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3 .4 .

M

4 .

.55 .

*

.* ESTIMATED DEPTH MAY BE UNRELIABLE

. OF THE CONDUCTOR MAY BE DEEPER OR

. LINE, OR BECAUSE OF

1A SHALLOW DIP

VERTICAL . HORIZONTAL CONDUCTIVEDIKE . SHEET EARTH

*


*

1 8 . 1 75 351 23W M 9 W B W V

t

4

W H 9 W V ™ B

™ —— * ™ ™ ™ "*

.

22 38 . 1 162 106 111*

*

1 0 . 1 119 145 91

t

M V , B W V M

*

C

1 0 . 2 149 15 138 15 49 . 4 176 11 1508 15 . 1 155 384 61

*

1 0 . 1 111 274 79*

*

*

t

M M f ^ "1* ™ ™

- - . - - -

k

M -B , 0 —— —— ——

B

V V ( H H —— ——

- .

*

*

W ^ j ^ ^ M w

*

1 5 . 1 75 908 0*

BECAUSE THE STRONGER PART . TO ONE SIDE OF THE FLIGHT .OR OVERBURDEN EFFECTS.

lll l l l l l l l l l l l l l l l l

1030 AREA B


4 *


LINE 29010 (FLIGHT 10)A 4287 S l 2 O 2 2 4 . - -B 4277 D 3 3 O 4 3 4 . -a 0. l 138 1024 66

,* ESTIMATED DEPTH MAY BE UNRELIABLE BECAUSE THE STRONGER PART . OF THE CONDUCTOR MAY BE DEEPER OR TO ONE SIDE OF THE FLIGHT . LINE, OR BECAUSE OF A SHALLOW DIP OR OVERBURDEN EFFECTS.

1 1 1 1111111111111111

™ 1030 AREA C

COAXIAL COPLANAR COPLANAR . 900 HZ 900 HZ 7200 HZ .

*

ANOMALY/ REAL QUAD REAL QUAD REAL QUAD . FID/INTERP PPM PPM PPM PPM PPM PPM .

LINE 30010A 3217 S

LINE 30050A 3713 S B 3743 SC 3764 S

LINE 30060A 3858 S

LINE 30070 A 3958 S

LINE 30080A 4172 SB 4135 S

LINE 30090A 4824 S

LINE 30100 A 5101 SB 5057 S

LINE 30110A 5194 SB 5252 S

LINE 30120A 5596 SB 5557 S

LINE 30130A 7020 SB 6979 SC 6931 S

LINE 30140 A 7092 SB 7150 S

LINE 30150A 7545 S

(FLIGHT1 2

(FLIGHT4 6 1 21 2

(FLIGHT2 4

(FLIGHT 1 5

(FLIGHT1 21 2

(FLIGHT0 4

(FLIGHT 0 60 3

(FLIGHT0 40 3

(FLIGHT2 32 2

(FLIGHT1 23 62 2

(FLIGHT 1 33 4

(FLIGHT0 4

.* ESTIMATED DEPTH

4)1

4)0 00

4)0

4)1

4)00

4)0

4) 00

4)00

4)00

4)000

4) 00

4)0

MAY. OF THE CONDUCTOR MAY. LINE, OR BECAUSE OF

4

6 22

6

8

12

5

73

53

34

164

35

4

BEBE

*

4 5 .

*

19 41 . 2 4 .2 4 .

t

*

5 67 .

1 2 .*

*

2 4 .2 4 .

*

*

1 65 .*

4

15 113 .8 51 .

*

t

5 4 7 .12 52 .

t

1 17 .13 44 .

*

*

1 4 .24 97 .6 50 .

*

*

12 48 .17 93 .

*

13 64 .

UNRELIABLEDEEPER OR

A SHALLOW DIP


*


•ci

2

-

2

1

-—

•a

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*a^

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—

2•ci

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2

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BECAUSETO ONE

0

22

-

17

15

--

0

30

00

00

—

160

021

0

THESIDE

*

14

4

1* —

t "*

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V

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.

. -

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1

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t

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1

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t

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1

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1

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1

1

*

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1

21

92

-

107

78

--

23

872

227

2417

.

1501

11139

10

STRONGER PARTOF THE FLIGHT

282

917

-

1035

664

--

255

8991372

262967

359738

n

10351716

9131035

944*

*

*

0

6

-

0

9

--

5

40

20

00

—

00

00

0


1 1 1 111111111111111

™ 1030 AREA C


*


LINE 30150B 7506 S

LINE 30160A 7758 S B 7801 S

LINE 30170A 8217 SB 8247 SC 8273 S

LINE 30180A 721 S

LINE 30190A 927 SB 985 S

LINE 30200A 1459 S

LINE 30210A 1648 S

LINE 30220A 2065 S

LINE 30230A 2290 DB 2226 SC 2196 S

LINE 30240A 2443 DB 2514 S

LINE 30250A 2723 B? B 2715 S?C 2647 S

LINE 30260A 2888 B

(FLIGHT0 3

(FLIGHT0 3 0 10

(FLIGHT0 80 10 2

(FLIGHT1 2

(FLIGHT4 53 4

(FLIGHT1 3

(FLIGHT1 3

(FLIGHT0 3

(FLIGHT5 51 12 4

(FLIGHT1 20 3

(FLIGHT5 4 0 21 5

(FLIGHT18 8

4)0

4)0 0

4)011

5)0

5)00

5)0

5)0

5)1

5)100

5)11

5)3 01

5)13

.* ESTIMATED DEPTH MAY

. OF

4

4 10

1002

2

53

3

3

3

314

13

4 35

5

BETHE CONDUCTOR MAY BE


1

*

t

12 66 .

11 66 . 30 179 .

*

20 162 .0 4 .2 4 .

*

m

1 4 .*

*

8 19 .6 59 .

*

*

6 59 .*

*

10 50 .*

*

10 49 .*

*

9 13 .2 4 .

22 66 .

*

2 4 .16 18 .

*

*

19 14 . 8 14 .

13 21 .t

41 11 .

UNRELIABLEDEEPER OR

A SHALLOW DIP


t


•ci

•ci•CI

•CI-—

-

3•ci

•ci

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5-

<l

.

1

7 •ci<l

30

BECAUSETO ONE

0

0 3

1-—

-

270

0

0

0

41-0

.0

23 00

8

THESIDE

*

t

1*

t

1 1

*

1* *~

* "*

*

*

g w

*

*

11

.*

1-

14

*

1

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1

.

1

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1

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*

1 11

V

2

4

6 78

68-^

-

1392

4

12

20

211-19

.23

122 6720

136

1007

1091 860

814-,

-

10351765

1826

1121

417

1035-

556

w

356

174 680333

30

0

01

0--

-

00

0

0

0

0-0

.

0

67 290

101*

STRONGER PART .OF THE FLIGHT .


1 1 1 1111111111111111

^ 1030 AREA C



LINE 30260B 2903 S?C 2991 S

LINE 30270 A 3287 DB 3285 DC 3278 S?D 3203 S

LINE 30280A 3402 D B 3405 DC 3503 S

LINE 30290A 3614 S

LINE 30300A 3819 S

LINE 30320 A 4277 B?B 4301 S?

LINE 30340A 5135 S

LINE 30350 A 5678 S

LINE 30450A 2131 S

LINE 30460A 1682 S

LINE 30520A 6315 S

LINE 30540A 4455 S

(FLIGHT0 20 2

(FLIGHT 6 65 60 30 6

(FLIGHT5 6 3 40 5

(FLIGHT0 4

(FLIGHT0 1

(FLIGHT 1 10 1

(FLIGHT0 2

(FLIGHT 0 2

(FLIGHT1 2

(FLIGHT1 2

(FLIGHT7 1

(FLIGHT2 3

,* ESTIMATED DEPTH. OF

5)00

5) 4610

5)6 60

5)0

5)1

5)10

5)2

5)1

8)1

8)0

7)0

8)1

MAY

22

6636

5 57

4

1

20

3

4

2

2

1

7

BETHE CONDUCTOR MAY BE


612

31361235

29 2925

14

2

20

7

14

2

2

0

12

*

13 .5 .

23 .29 .11 .

103 .

23 . 23 .

117 .

,32 .

,4 .

t

4 .11 .

.55 .

70 .

|4 .

0 .

.9 .

.56 .

UNRELIABLEDEEPER OR

A SHALLOW DIP



•cii

671

•a

7 6

*1

•CI

—

•a

•CI

•ci

-

-

•CI

1

BECAUSETO ONE

00

18320l

23 320

0

—

0

0

0

-

-

0

8

THESIDE

1 46 12521 21 372

*

*

1 126 1011 123 1691 80 2741 71 840

t

1 159 311 1 148 1071 86 908

4

1 14 786

,, — - -.

1 101 7782

,1 2 1666

t

1 7 887

|-

t

*

1 47 6268..

1 86 920,

STRONGER PART .OF THE FLIGHT .

60

7871490

73 981

0

-

5

0

0

-

-

0

0


11 '1 111111111111111

™ 1030 AREA C


* t


LINE 30550 A 5785 S

LINE 30570A 5147 S B 5176 S

LINE 30580A 4797 S

LINE 30590A 4607 S

LINE 30600A 4421 S

LINE 30610A 4200 SB 4218 S

LINE 30620A 4155 S

LINE 30630A 3727 SB 3784 S

LINE 30650A 3409 S B 3434 S

LINE 30660A 3288 SB 3262 S

LINE 30670A 2893 S

LINE 30680 A 3431 SB 3479 S

LINE 30690A 2285 S

(FLIGHT 0 1

(FLIGHT0 2 0 1

(FLIGHT1 3

(FLIGHT1 2

(FLIGHT1 2

(FLIGHT0 30 3

(FLIGHT0 2

(FLIGHT1 20 2

(FLIGHT1 6 1 2

(FLIGHT0 40 2

(FLIGHT0 10

(FLIGHT 0 10 7

(FLIGHT0 5

7) 0

7)0 0

7)1

7)0

7)0

7)00

8)1

7)00

7)0 0

7)10

7)0

8) 02

7)0

0

21

3

3

2

43

2

13

7 2

53

12

211

64

.* ESTIMATED DEPTH MAY BE

. OF THE CONDUCTOR MAY BE


1

0

2 1

17

10

2

217

2

09

44 2

368

59

020

26

* *

4 . - .

g (

4 . - . 4 . - .

* *

* 4

56 . -a 0 . 1 16 654* t

t 4

35 . -CI 0 . 1 16 1031* *

4 *

4 . - .t 4

4 *

77 . -O. 0 . 1 16 58758 . *tt 0 . 1 3 1607

* 4

* t

4 . - .t t

* *

4 . - .45 . ^ 0 . 1 10 1218

4 *

* t

133 . <l 0 . 1 76 913 4 . - .

4 4

4 4

85 . <l 0 . 1 7 32448 . -ei 0 . 1 3 1387

* 4

4 4

217 . <l 0 . 1 59 8014 4

* l

4 . - .91 . *Q 0 . 1 53 552

4 4

4 4

118 . 1 6 . 1 100 1006

-

-

0

0

—

00

**

.

0

0

00

0

—

0

0* .

UNRELIABLE BECAUSE THE STRONGER PART . DEEPER OR TO ONE SIDE OF THE FLIGHT .

A SHALLOW DIP OR OVERBURDEN EFFECTS.

1 1 1 1111111111111111

™1030 AREA C



LINE 30720A 1281 S

LINE 30740A 701 S

LINE 30750A 6097 S

LINE 30790A 5513 SB 5588 S

LINE 30810A 5215 SB 5272 S?

LINE 30820A 5078 S B 5021 S

LINE 30830A 4905 SB 4912 SC 4919 SD 4958 S

LINE 30840A 4747 S B 4715 S

LINE 30850A 4573 SB 4601 LC 4620 S

LINE 30860A 4421 SB 4411 L

LINE 30870A 4309 L

.

(FLIGHT0 4

(FLIGHT1 1

(FLIGHT0 1

(FLIGHT1 10 1

(FLIGHT0 10 2

(FLIGHT0 5 0 1

(FLIGHT0 40 30 50 2

(FLIGHT0 30 1

(FLIGHT0 30 30 1

(FLIGHT0 20 4

(FLIGHT0 2

.* ESTIMATED DEPTH

. OF

7)0

7)1

6)0

6)00

6)00

6)1 0

6)1000

6)1 0

6)100

6)00

6)0

MAYTHE CONDUCTOR MAY


6

1

1

11

21

6 2

4352

2 2

311

20

1

BE



35

0

0

20

20

31 0

821500

5 0

1202

70

2

105 .

t

4 .

*

13 .

.4 .5 .

4

.4 .8 .

*

101 . 4 .

'

75 .46 .96 .4 .

t

t

27 . 21 .

*

45 .8 .4 .

V

40 .5 .

*

.4 .

UNRELIABLEBE DEEPER OR

A SHALLOW DIP


B


•ci 0 .

t

~ ~ *

*

*:i 0 ..*

— - .•ci 0 .

.— —

5 69 .

•CI 0 .

|•ci 0 .^ 0 .•ci 0 .

- .

t

•si 0 . *:l 0 .

<l 0 .2 23 .~ —

-

<l 0 .<l 0 .

.— .

1 88 1006

- . ~

1 48 6454

— - -1 62 6882

•C B M

1 214 1035

1 109 1003

1 15 5181 19 3041 88 896.

1 19 274 1 9 5658

1 15 4711 189 1035- . -

1 8 15271 22 5858

V ** *

.

0

-

0

w

0

—

0

3

001-

0 0

00—

00

—

BECAUSE THE STRONGER PART .TO ONE SIDE OFOR OVERBURDEN

THE FLIGHT .EFFECTS .

1 1 11111111111111111

™1030 AREA C



LINE 30870B 4321 S

LINE 30880A 3932 L

LINE 30890A 3810 L

LINE 30900A 3568 L

LINE 30910A 5022 L

LINE 30920A 3066 L

LINE 30930A 2895 L

LINE 30940 A 2546 L

LINE 30950A 2354 L

LINE 30960A 2185 L B 2136 S?

LINE 30970A 1558 L

LINE 30980A 1249 L

LINE 39010A 5934 S B 5823 SC 5740 SD 5664 S

*

(FLIGHT0 2

(FLIGHT0 2

(FLIGHT0 2

(FLIGHT0 2

(FLIGHT1 2

(FLIGHT0 2

(FLIGHT0 2

(FLIGHT 0 2

(FLIGHT0 2

(FLIGHT0 2 0 0

(FLIGHT0 2

(FLIGHT0 2

(FLIGHT0 4 0 21 21 1

.* ESTIMATED DEPTH

. OF

6)1

6)0

6)0

6)1

8)1

6)1

6)1

6)1

6)1

6)1 0

6)1

6)0

8)1 111

MAY

2

1

1

1

1

1

1

1

2

1 0

1

1

5 221

BE

COPLANAR . VERTICAL . HORIZONTAL CONDUCTIVE 7200 HZ . DIKE . SHEET EARTH

* t

REAL QUAD . COND DEPTH*. COND DEPTH RESIS DEPTH PPM PPM .SIEMEN M .SIEMEN M OHM-M M

2

2

2

2

2

2

2

2

1

1 0

2

2

19 222

* *

* *

4 .* *

* *

4 . - .* *

* *

3 . - .t *

4 *

2 . - .* *

* *

4 . - .* t

* t

4 . - .* t

4 . - .* *

* *

4 . - .B *

V *

4 . - .* *

t *

4 . - .A . - - .*T* ^ ^*

* *

* *

4 . - .* *

* *

4 . - .* *

* *

35 . ^ 0 . 1 72 664 4 . - .4 . - .4 . - .

t

-

-

—

.

-

—

-

-

-

-

-

-

0

-^

UNRELIABLE BECAUSE THE STRONGER PART .THE CONDUCTOR MAY BE DEEPER OR TO ONE SIDE OF THE FLIGHT .


l l l l l l l l l l l l l l l l l

r!030 AREA C

COAXIAL COPLANAR COPLANAR 900 HZ 900 HZ 7200 HZ

ANOMALY/ REAL QUAD REAL QUAD REAL QUAD FID/INTERP PPM PPM PPM PPM PPM PPM

LINE 39010 E 5628 S? F 5546 S

(FLIGHT l 2 l 2

8)OO

22

2 O

44

VERTICAL DIKE

COND DEPTH* SIEMEN M

HORIZONTAL CONDUCTIVE SHEET EARTH

COND DEPTH RESIS DEPTH SIEMEN M OHM-M M

.* ESTIMATED DEPTH MAY BE UNRELIABLE BECAUSE THE STRONGER PART

. OF THE CONDUCTOR MAY BE DEEPER OR TO ONE SIDE OF THE FLIGHT


Ministry of Report of WorkNorthern Developmentand Mines (Geophysical, Geological,

Ontario Geochemical and Expendh

42C08SE8673 2 .11094 GLASGOW

Township or At en

Date of Survey (f

f fir a ^e/^Vv . JAddress of Author (of Gflfc-Tecnnical tepoit)

Credits Requested per E/ch Claim in Columns at rightSpecial Provisions

For first survey:

Enter 40 days. (This includes line cutting)

For each additional survey: using the same grid:

Enter 20 days (for each)

Man Days

Complete reverse sidf *" and enter total(s) heie

MAi

MIWHG

Airborne C'Ortiti

Note: Special provisions credits do not apply to Airborne Surveys.

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

•qpf 'VHS D- Electromagnetic

\ 9ZW& ,\ ^j- *nagneio meiei

- Other

Geological

Ciooclti'rnirni

Electromagnetic

Magnelorneiei

~~

Days per Claim

—— - ——

Days per Claim

Days pei Claim

27. 2.?-

Expendituics (excludes power stripping)

Mining Claims Traversed (List in numerical Sequence l

Type of Work Pefformed

Pt' f ormed on ClaimlslPt' f or

4'

Calculation of Expenditure Days Credits

Total ExpendituresTotal

Days Ctedin

Instruction*Total D.IV* Ciprlils may be Opporiionrd ni tho cl.iim ItuUlor's choiro. T itter number of dnys rrrdiis pnr rtnim solo* n-d In columns at right.

c:o\rlod Holder or

Certification Verflying Repoi/ofwork

wm^TK 4- 4-

l hereby certify or witnessed sr

ify that l linve a/iorsonal and intiinnte kitowledgo of same durirg a^u/or after its completion and the ann

the facts set/orth in the Report of Work annexed hereto, having ppi formed tho work lexed report is true.

Nait*) and Poital Address of Persc/n Certifying

7 . /r/v J/Darf Certified

^yVi-————yWJ1 *?! by (Signamre)

^]. on -r: j

Ministry ofNorthern Developmentand Mines

Ontario

Report of Work PuOCUMENT No.

(Geophysical, Geological, j VV8805^ fi O 'Geochemical and Expenditure

i

Mining Act ^r '

tructions:

Note:

oPlease type or print. r If number of mining claims traversed exceeds space on this form, attach a list. Only days credits calculated in the "Expenditures" section may ho entered in Ilw "FxfViul. n.'iy. ri." columns. Do not u r.r; sluilcd HUM*; linliiw. '~~~

i J A

^ .: c 2f- A'U r L^M^J J S

l ownship 01 AJ r a

...Prospector's Licence No.

-

Najn

r*Address of Author (ol/vSeo-Technicfll repoil)

^K 72~ir /I/fa

j^Ô^r^^.^P^ wiJ TDate of Survey (from Si t oj^cJ^v-L&ri^r

a. # gTotal Miles of line Cut

Credits Requested per-tachjClaim in Columns at rightSpecial Provisions

For first survey:

includes line cutting)



Man Days

PFCEPComplete rAArsVsiW *" and enter total(s) here

MAR 2 2

MINING LANDS

Airborne Credits

Note: Special provisionscredits do not apply to Airborne Surveys.

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

- Electromagnetic

lyOOiviagnetometer

- Rndiomctric

SECTION- Other

Geological

Geochoniicnl

Electromagnetic

MagnetomctiM

Days per Claim

- . ———— -

Days par Claim

- - -

Days per Claim

Z7J-2-.

C- Êxpenditures (excludes powi.T sttipping)lypeofWork Performed

Performed on Claim(s)



Days Credits

-4- 15 -LIrxtructions

Total Days Cieilits may be appoitionrd nt the cl.iim lioliler'tchoice. f:ntf*f luimhoi of dnys r.rrdils per rlaim sclernxlin column* at right. ,

Oate i flefoiXleLûj^ Mled Hairier or/ient LSignitiue)

Certification Veiikying RepOiôf Work

i .LMining Claris traversed (List fn nume^cal rtTquence)

x vi

Total iHimhcr of claims covered by rcpor l of work.

For Office Use Only

Date Approved as Recorded

l hereby cettify that l hafce a^pcrsonal and intimnte knowledge of the facts set forth in the Report of Work annexed hereto, having performed the work or witnessed same duringVid/or after its completion and the annexed report j/true.

NimeAnd Postal Address of Person Certifying

ScCUMENT NoMinistry of Report of WorkNorthern Development l \MOOn^.and Mines (Geophysical, Geological, l VVOOV'^

Or.lario Geochemical and Expendit'

ITo^ffMining Act

Instruct ions: Please t ype or print, If number of mining claims traversed

exceeds space on this form, attach a list. Note: Only days credits calculated in the

"Expenditures" section may bc entered in the "Expend. Dnys Cr." column-;.

____ Do mil use slim In t niiiin Imlow. -^

...Address

.

u a/ ,\) J '

[Township or f\rn

l^Prospector's Licertie- No.

p. o .; lSurvey Company

:*. f o /l/} Z tt Oate ol Survey (from a to

- .e apilVddress of Author (of Geo-Tec/nical repqrt) .

Total Miles of line Cut

fiLJ.Credits Requested per E^h Claim in Columns at rightSpecial Provisions

For first survey:Enter 40 days. (This includes line cutting)



Man Days

Complete reverse side and enter lotaRJ) f*r^ P

MAR 2 '

MI::;;!: u:-:i

Airborne Credits


Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Geophysical

V - J^eJTlioniagnetic i* to**'

- Magnetometer

1 1QQQt )39Odiometric

- Othero c,-PT'prJ^ \^^.^..^'iGeological

ficochemicBl

Electromagnetic

Magnetometer

U^^^M'

Days per Claim

Days perClaim

——————

Days per Claim-^J

•L?

^

Mining Claims Traversed (List in numerical^equence)

Expenditures (excludes power stripping)Type of Work Performed

Performed on Claim!j)

Calculation of Expenditure Da y t Credits


Days Credits

$ ± 1 5nstructions

Total Days Credits may be apportioned at the claim holder's choice. Enter number of days credits per claim selected * in columns at right. '

Mining Claim Prefix Number

**E; fef^: ;:...,- .3. O R D E* *-t.-* tajsj-M/j?—i-'r':V '

Becelp

^•i,"-"-v!

Mo.

Expend. Days Cr.

E C..C-LV-I:

AM,- MAP,-^^

•••s.

Tolnt number of mining claims covered by this report o f work.

er/yin

Rec

Certification Verifying Repofl

ed Holder

ork

For Office Use OnlyTotal Days Cr. Recorded

Date Re

Date Approved as Recorded^

A it fa At r

Mining RecQfdeUL:./.-.-i---

Brai

l hereby certify that l have/a pe or witnessed same during arw/d

sonal and intimate knowledge of the facts set torth in the Report of Work annexed hereto, having performed the work after its completion and the annexed report is true.

Name md Postal Address of Person/certifying

;O L/Or -

Date Certified Certi

f ^ f


Report of Work(Geophysical, Geological, Geochemical and Expenditures

DOCUMENT No. ions:

\lote:

Mining Act

~-,-*__Address

Please type or print. If number of mining claims traversed exceeds space on this form, attach a list. Only days credits calculated in ihe "Expenditures" section may be entered in the "Expend. Days Cr." columns. Do not usn shmlod mons lirtlow. -f /- -'

Township or Ar*a

Prospector'suJa )

-C

, P, O - '2 p xSurvey Company .

7

. .Address of Author (of'Geo-Technica! report

Z Sr

... .s\ S i Date of Survey (from tt t o

/Tore j;;~.( J^v.^..sv

?rA) __ fauQ/Li^

jTotal Miles of line Cut

/?;UA /X/Credits Requested pep^Each Claim in Columns at rightSpecial Provisions

For first survey:




Man Days

Complete reverse Jijejj ^ and enter total(s) here

MAR 't

MINING LAi

Airborne Credits


Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Geophysical•* l * * r"* "*v

" i - 'Clec4rowiagnetic

! 2 -OT'ometer* Radiometric

^DS*KT:ONGeological

Geochemical

Electromagnetic

Magnetameter AVtf-fttfMaJfo'niBli w

Day* P*r Claim

Days per Claim

:::Days per

Claim

17I'L ~l(*

Mining Claims Traversed (List in numerical iequence)

Expenditures (excludes power stripping)Type Of Work Performed




Days Credits

-!- 1R ^— lo l -

InstructionsTotal Days Credits may be apportioned at the claim holder's choice. Enter number of days credits per claim selected in columns at right.

lotal number of mining claims covered by this report of work.

For Office Use Only

Date Appovad at RecordedReo5\ded Holder o/T^Bent LSignaMite)

Certification Verifying Repdrl hereby certify that l have a/ersonal and intimate knowledge of the facts seaforth in the Report of Work annexed hereto, having performed the work or witnessed same during aoa/or after its completion and the annexed report is true.

Nanle and Postal Address of Pa/son Certifying

s i/ f Date Certified V ^ert/TJd by (Signatu*y (Signatur

Ministry of Northern Allairs and Mines

Ontario

Report of Work(Geophysical, Geological, Goochomical and Expenditures!

DOCUMENT No.

W8805-Instructions: — Please type or print.

— If number of mining claims traversed exceeds space on this form, attach a list.

Note: — Only dnys credits calculated in the "Exprmdituros" snclioii may bo entered in thn "Expend. Dnys Cr." columns.

— Do not use shaded arc.is below.

Claim Holder(s) j s~i

Addryss ~ ~ ~

rf) /vl \*r f J 4ate of Survey (from 81 to) JTotal Miles of line Cut

' Mo. l Yr.Address pf Author (of Geo-Technical reoprt) x . j

* J- ^ M: x; aCredits Requested pfir Each Claim in Columns at rightSpecial Provisions




Man Days

Complete reverse side and enter total(s) here

Airborne Credits


Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Electromagnetic

Magnetometer

RjremJTnatric

Days per Claim

Days per Claim

Days per Claim

z?17Ik

Mining Claims Traversed (List itrnufnerical sequence)

Expenditures (excludes power stripping)Type of Work Performed




Days Credits

InstructionsTotal Days Credits may be apportioned at the claim holder's choice. Enter number of days credits per claim selected In columns at right.

Mining ClaimNumber

ITE-ClDJaJLIJI

AR 28 1988

Becel )tNo.,

Expend. Days Cr.

Total number of mining claims covered by this report of work.

Date Holdv or Ag^nt (! Ignatura)

Certification Verifying Reporyof Work

Holdvor Agkrrtl-rLWuArL VS

For Office Use OnlyTotal Day* Cr. Recorded

Date Recorded,,

Data Approved Ji Recorded

/L

Mining Re

i hereby certify that l haveti /ersonal and intimate knowledge of the facts set/orth in the Report of Work annexed hereto, having performed the work or witnessed same during arra/or after its completion and the annexed report/s true.

Name.and Postal Address of Person/Certifying

Ministry of Northern Affairs and Mines

Ontario (

Report of Work(Geophysical, Geological, Geochemical and Expenditures)

DOCUMENT No.

W8805- #6*

In

/

Mining Act

tructions: Please type o/print.— If number iff/mining claims traversed

exceeds space! on ihis form, attach a list. Note: — Only days/ ore/lits calculated in the

"Expf!n(lituVos'\ *nrtton may be entered in Ilw "ExYuyiYl. Onys Cr." columns.

Do nut use shinl/'d mons bolow. ~~f -c .

Type of Survey(s)

Airborne Geophysical - Mag, EM, VLF —-Claim Holder(s)

Township or Area

Bruyere, Copenace, Dolson

Stephen G. Maclntyre and Roy Stables l M .23824Address

Prospector's Licence No.

M23954 . ,-ji-—..

25 Playter Blvd., Toronto, Ont., M4K 2W1_________Date of Survey (from Si to)Survey Company

Procesi1 *. iTotal Miles of line Cut/

Name and Address of Author (of Geo-Technical report)

D. Mcconnell, 228 Matheson Blvd. E., Mississauga, Ont. L4Z 1X1Credits Requested per Each Claim in Columns at rightSpecial Provisions

For first survey:




Man Days

Complete reverse sidD p ( and enter total(s) here

mMIM'Wn '4li 1 1 * t i * ~*

Airborne Credits


Geophysical

- Electromagnetic

' Magnetometer

- Radiometric

- Other

Geologicnl

Geochemical

Geophysical

' ""-Tilettrofnlgnetic

1 3*^988™^- Radiometric

,ANOSnSECT!ONGeological

Gcoctiomical

Electromagnetic

Magnetometert T T TTl T^lut

ritijEafiJ1

Days per Claim

Days per Claim

—————— .

Days per Claim~27~

27

26Expenditures (excludes power stripping)Type of Work Performed

Performed on Oaim(s)


Total Expenditures

S -5-15

Tots! Days Credits

s

InstructionsTotal Days Credits may he apportioned at the claim holder's choice. Enter number of days credits per claim selected/ In columns at right.

Date Rectfrrled Holder or

Certification Verifying Rfljbrt/of Work

rlSigr/atuce)

/t

Mining Claims Traversed (List in numerical sequence)Mining Claim

Prefix

•' - r ,*

R

AA

Number

seeattachedlist

R e ^ n ftout

APR 7

Beceipt No..

eAUtJS^NIE CE l \

k APR-"? tlfyl,Ojll|]2,J|i

Expend. Day* Cr.

-D-E

1988

u — -rs

WIE

E frt-TT.68

n a

D

ES3

i

[I

Mining ClaimPrefix

1

NumberExpend. Days Cr.

Total number of mining claims covered by this report of work.

For Office Use OnlyTotal Days Cr. Date.Recorded Recorded

Da Approved as Recorded

/l tt M! as Recorded J/o? r

l hereby certify that l have a personal and intimate knowledge of the fails set forth in the Report of Work annexed hereto, having performed the work or witnessed same during-artfWor after its completion and the annexed report is true.

Name and Postal Address of Person Certifying

jLJLv-JMcCpmbeL,^2:0 7J}, Jfenoga JDr ive.^Missj. fisaiiga . Qni-Dat ^(Slgnatu/eX 7r Lo..

Bruyere (87)

Schedule of Mining Claims

SSM 958353958354958355958356958357958358958359958360958361958362958363

958450958451

958460958461958462958463958464958465958466958467

958472958473958474958475958476958477958478958479

SSM 958482958483958484958485958486958487958488958489958490958491958492958493958494958495958496958497958498958499

959280959281

SSM 955870955871955872955873955874955875955876955877955878955879955880955881955882955883955884955885955886955887955888955889955890955891955892955893955894955895955896955897955898955899955900955901955902955903955904955905955906955907

Copenace (6

SSM 952008 952009

959291959292959293959294

Dolson (14)

SSM 958452958453958454958455958456958457959458959459

958468958469958470958471

958480958481

' Ministry of Report of Work Northern Affairsand Mines (Geophysical, Geological,

Ontario /' Goochnniical and Expenditures!^

DOCUMENT NO. |, itructions: A, Please type or print.'"" If nurnher of mining^(Haims traversed

excoeds space on tlifs/clrfn, attach a list. Ibte: — Only diiy; crpditsl /cajCulnlod in the

"Fx|ipinliliiips" snclHm/jfiiny IIP nntnind

Mining Act C 'ffo T*T' ... D ,, n,',,,,..,. .,t'IM i,\ itTypo ol Surveytsl

Airborne Geophysical-Mag, EM, VLFClaim Holderls)- - -.——----

John SlackAddress

P.O. -Box l, Missanabie, Ontario, PoM 2HOSurvey Company

Dighem Surveys S Processing Inc.

Township or AICVI WeslBruyere, Glasgow', Riggs

Prospector's Licence No. ~/// ' if l, ' ' 1 C O-'

Date of Survey (from 81 to)o o . o Q Q l IT ^A^C* l mu \ "Q O l rt,l- fi h ^Jl \*ta y l IVTD, ^ TT. l U8y l IVTO.

Total Miles of line Cut

Name and Address of Author (of Geo Technical report)

D. Mcconnell, 228 Matheson Blvd. E., Mississauga, Ont. L4Z 1X1Credits Requested per Each Claim in Columns at rightSpecial Provisions




Man Days

Complete reverse skle and enter totallsUieja C 1Rtv-t.

MAY 16

MINING IANC

Airborne Credits

Note: Special pi ov'-.ions credits do not apply to Airborne Suiveys.

Geophysical

- Electromagnetic

- Magnetometer

- Raetiometric

Other

neologiral

Grofhetniciil

Geophysical

f ^rt^tromngnetic

- Magnetometer

JgOOtulio metric

riihp,

^roregical

Ooi hnnicnl

ElocnoniAgnotic

M.IOll p 3 nninlor

x^fcsja

Days per Claim

Days per Claim

-—— ———

Days per Claim

27

^27

26ixpenditures (excludes powei shipping)

Mining Claims Traversed (List in numerical sequence)

Work Porfotitir*rl

Performed on Claun(s*



Days Credits

15Instructions

Total Days Credits may he appui tiono-f it the claim holder's choice. Enter number of tinys credits pnr claim selected In columns at right.

Mining ClaimPrefix

f

\

R

R

R

A.M W

Number

seeattachedlist

E C 0 R

APR 7 19

jcelpt-No^-- — - - — ----

------ — — - -

O'nUfc f 0 1 C* nK ^UMUJIrfSfVVJ^

EC li 1 V

APR-J7-flWiVilAli.!

Expend.Days Cr.

58

-— - — -

— .. —"Tptojj —

P,r\?jfj?i'

m

B.

N Prefix

lining ClaimNumber

- -- -

-

-— — - -

Expend. Days Cr.

- -~

——

. ——

- - —

Certification Verifyiiig Rnyoit of Woik \

-iiins rovot 'd by this report o* work.

7-Vl hereby certify that I4wv; a personal and intimate knowledge of the facts set forth in the Report of Work annexed hfieto, having performed the work or witnessed same during and/or nftei its completion and the annexed report if true.

Ma m* and Postal Address of Person Certifying

J.E. McCombe, 2078 Tenoga Drive, Mississauga, Ont. L5H 3K2Date Certified __LCoitfliiJl by (Sign

.WWi /?TST (.177?


Bruyere (26

SSM 959305959306959307959308959309959310959311959312959313959314959315959316959317959318959319959320959321959322959323959324959325959326959327959328959329959330

Glasgow (21)

SSM 956375 956376

956381

958369

958382958383

958398

958400

958413958414

958427958428

958442

958449

959290

959295959296959297959298959299959300

V

Riggs (103)

SSM 956377956378956379956380

958370958371958372958373958374958375958376958377958378958379958380958981

958384958385958386958387958388958389958390958391958392

958395958396958397

958399

SSM 958401958402958403958404958405958406958407958408958409958410958411.958412

958415958416958417958418958419958420958421958422958423958424958425958426

958429958430958431958432958433958434958435958436958437958438

SSM 959285959286959287959288959289

959302959303959304

959331959332959333

959336959337959338959339959340959341959342959343959344959345959346959347959348959349959350959351959352959353959354959355959356959357959358959359959360959361959362959363959364

West (20

SSM 955842955843955844955845955846955847955848955849955850955851955852955853955854955855955856955857

958365958366958367958368


ntario

Geophyslcal-Qeologlcal-Geochemlcal Technical Data Statement

File—

TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORTFACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Type of Survey(s) Airborne electromaqnetic/resistivity/magnetic/VLFTownship or Area Glasgow, Riggs,. West, Bruyere F____

Copenace, Dolson, Echum . Claim Holder(s) j. slack/ g. Mcintyre j J i Anglehartl

MINING CLAIMS TRAVERSED List numerically

S. Jenner. K. MoC!nrnH nlc

Survey Diqhem Surveys S Processing Inc.Author of Report D- L. McconnellAddress of A..thor228 Matheson Blvd. E., Mississauga

Covering Dates of Survey -^..

Total Miles of Line Cut ————(linecutting to office)

SPECIAL PROVISIONS CREDITS REQUESTED

ENTER 40 days (includes line cutting) for first survey.ENTER 20 days for each additional survey using same grid.

Geophysical—Electromagnetic.—Magnetometer...—Radiometric———Other^—^—

DAYS per claim

Geological.Geochemical.

AIRBORNE CREDITS (Special provision credit! do notABph; to airborne turveyi)

Magnetometer .JLL—Electromagnetic 27 H-a/tMmnrh- —26.

DATE :2-** "'l 1/S0 S

(enter dmyi per

SIGNATURE

See attached(niniber)

Res. Geol.. . Qualifications.Previous Surveys

File No. Type Date Claim Holder

TOTAL ri ATMS 336

837 (85/12)

GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS — If more than one survey, specify data for each type of survey

Number of Stations. Station interval—— Profile scale ————

.Number of Readings .JLine spacing——-.—

Contour interval.

U

Zc

Instrument.Accuracy — Scale constant. Diurnal correction method.Base Station check-in interval (hours). Base Station location and value ___

ECTROMAGNETIC

In^trnmpnt

Coil configurationCoil separationAccuracyMethod: Vrfnnrnry

Q Fixed transmitter CD Shoot back CD In line D Parallel line

(ipecify V.L.F. nation)

Parameters measured.

d

Instrument.Scale constant.Corrections made.

Base station value and location.

Elevation accuracy.

Instrument ————————— Method D Time DomainParameters — On time .

- Off time— Delay time ———— Integration time.

d Frequency Domain _ Frequency ______ Range -——-.^-—.

Power.

Electrode array — Electrode spacing .

Type of electrode ,

SELF POTENTIALInstrument_______________________________________ Range.Survey Method ___________________________________________

Corrections made.

RADIOMETRICInstrument.Values measured.Energy windows (levels)_____________________________________. Height of instrument____________________________Background Count. Size of detector—^^-^—^^—^^——————^^——^———.^..—.^^^—-——.-—.——

Overburden ____________________________________________.(type, depth — include outcrop nup)

OTHERS {SEISMIC, DRILL WELL LOGGING ETC.) Type of survey-———^^—^————-^————.^——— Instrument ^————————^.^—^————.———^———Accuracy^—————^-^——————————————.Parameters measured.

Additional information {for understanding results).

AIRBORNE SURVEYSType of siiTvpy(g) Airborne Dighem III electromagnetic/r^a-ifi'M

Instrument(s) See report(ipecify for each type of wirvey)

Accuracy _____ See report(specify for each type of survey)

Aircraft ""-H Aerospatiale AS 350 B turbine helicopter

Sensor altitude——liLENavigation and flight path recovery method See report

Aircraft aitit..H,. 60 metres____________________Line Sparing 150 metres

Miles flown over total art-a 403.28__________________Over claims nnly 238.45

GEOCHEMICAL SURVEY - PROCEDURE RECORD

Numbers of claims from which samples taken.

Total Number of Samples. Type of Sample.

(Nature of Material)

Average Sample Weight——————— Method of Collection————————

Soil Horizon Sampled. Horizon Development. Sample Depth———— Terrain————————

Mesh size of fraction used for analysis.

ANALYTICAL METHODSValues expressed in: per cent

p. p. m. p. p. b.

D

D

Cu, Pb, Zn,

Others———

Ni, Co, Ag, Mo, As.-(circle)

Drainage Development——————————— Estimated Range of Overburden Thickness.

Field Analysis (——— Extraction Method. Analytical Method- Reagents Used——

Field Laboratory AnalysisNo. -^———^——

SAMPLE PREPARATION(Includes drying, icreening, cruihing, uhing)

Extraction Method. Analytical Method. Reagents Used——

Commercial Laboratory (- Name of Laboratory—- Extraction Method—— Analytical Method—— Reagents Used—————

.tests)

.tests)

.tests)

GeneraL General.

Echum Township

LIST OF CLAIMS

Jules Anqlehart - SSM 885043885044885045885046885047885048885049885050885051885052

885115885116885117885118885119885120885121885122885123885124

S. Jenner - SSM 847969847970847971847972847973847974847975847976847977

J. Slack - SSM 936236936237936238936239936240936241936242936243936244

E. McCormick - SSM 101589910159001015901

1015907101590810159091015910101591110159121015913

Dolson Township

E. McCormick SSM 10159021015903101590410159051015906

J. Slack


Bruyere (26) Glasgow (21)

SSM 959305 SSM 956375959306 956376959307959308 . 956381959309959310 958369959311959312 958382959313 958383959314959315 958398959316959317 958400959318959319 958413959320 958414959321959322 958427959323 958428959324959325 958442959326959327 958449959328959329 959290959330

959295959296959297959298959299959300

Riggs (103)

J. Slack

SSM 956377956378956379956380

958370958371958372958373958374958375958376958377958378958379958380958981

958384958385958386958387958388958389958390958391958392

958395958396958397

958399

SSM 958401958402958403958404958405958406958407958408958409958410958411958412

958415958416958417958418958419958420958421958422958423958424958425958426

958429958430958431958432958433958434958435958436958437958438

SSM 959285959286959287959288959289

959302959303959304

959331959332959333

959336959337959338959339959340959341959342959343959344959345959346959347959348959349959350959351959352959353959354959355959356959357959358959359959360959361959362959363959364

J. Slack

West (20)

SSM 955842955843955844955845955846955847955848955849955850955851955852955853955854955855955856955857

958365958366958367958368

Bruyere (87)

S. Mcintyre


SSM 958353958354958355958356958357958358958359958360958361958362958363

958450958451

958460958461958462958463958464958465958466958467

958472958473958474958475958476958477958478958479

SSM 958482958483958484958485958486958487958488958489958490958491958492958493958494958495958496958497958498958499

959280959281

SSM 955870955871955872955873955874955875955876955877955878955879955880955881955882955883955884955885955886955887955888955889955890955891955892955893955894955895955896955897955898955899955900955901955902955903955904955905955906955907

S. Mcintyre

Copenace (6

SSM 952008 952009

959'291959292959293959294

Dolson (14)

SSM 958452958453958454958455958456958457959458959459

958468958469958470958471

958480958481

IMPOSITION OF CROWN LANDS

_ ..QFJ)OCUMENT SYMBOL

.PATENT. SURFACE S MINING RIGHTS .... 0

*' .SURFACE flIGHTSONLY ..... . ..... . ©

. MINING RIGHTSONLY ^.. .. Q

LEASE SURFACE A MINING RIGHTS . .. M

•' . SURFACE RIGHTSONLY ,^... ...,. H

" . MINING RIGHTSONLY.. ... ... .... .. D

LICENCE OF OCCUPATION ......... ....^. * . . .. T

ORDER IN COUNCIL ....... ..^ ,. . OC

RESERVATION ....... . . . .. . ....... . ... (J)

CANCELLED ,..,.. . . ..' ®

SAND 81 GRAVEL .........,.... .,... (a)

NOTE: MINING RIGHTS IN PARCELS PATENTED PRIOR Td MAY 6, 1913, VESTED IN ORIGINAL PAT6NTFE BY THE PUBLIC LANDS ACT. RSO 1970. CHAP 380, SEC H3. SUBSEC 1

V ?H t

CHALLENER TP. M- 1591

GO

H

od

Od OC Cd

OCd

V

Wabatongushi

RIGGS TP. M -158242C08SEB673 2.11094 GLASGOW 200

LEGEND

HIGHWAY AND ROUTE No.

OTHER ROADS

TRAILS

SURVEYED LINES:TOWNSHIPS, BASE LINES, ETC.LOTS, MINING CLAIMS, PARCELS, ETC.

UNSURVEYED LINES:LOT LINESPARCEL BOUNDARYMINING CLAIMS ETC

RAILWAY AND RIGHT OF WAY H

UTILITY LINES

NON PERENNIAL STREAM

FLOODING OR FLOODING RIGHTS

SUBDIVISION OR COMPOSITE PLAN

RESERVATIONS

ORIGINAL SHORELINE

MARSH OR MUSKEG

MINES

TRAVFRSF MONUMENT

NOTE

400' Surface Rights Reservation around all lakes and rivers.

UATt OF ISSUE

APR 2S .198E

SAULT STE. MARIE G i*F::OHDER'S OFFICE

SCALE: 1 I NCH - 40 CHAINS

FEET10OO 2OOO 40OO 6000 BOOO

O 200 METRES

10OO (l KM)

700O(2 KM)

ACRES HECTARES (:

TOWNSHIP OF **

GLASGOWDISTRICT OF

ALGOMAMINING DIVISION

SAULT STE. MARIE

Ministry ofNaturalResources

Surveys and

Mapping

BranchOntario

Date February 7, 1979

National Topographic Series

Plan No.

M - 1265f

NOTES

400' surface rights reservation along the shores ot all lakes and rivers

AREAS WITHDRAWN FROM STAKING

M.R:-Mining Rights

Date Disposition FileS.R. -Surface Rights

Section Order NoM MN.R, RESERVE S. h. 771)94

) 4 3IRSO 19701 W.3/T9 10 Sep /79 SR 163002

431 tfS.O. 1 9701 W 9/fll 20/7/8! S.R. 163002

SAND and G RAVEL

M.T.C. PIT NO. 1410

MT.C. PIT NO 1411

M.N.R. 6HAVEL PIT NO. 191 FILE : 163002

42Ca8SE8673 2.11094 G LASGOW

oLO

Q.

o in-JoQ

COPENACE TP M. 1580

SSM-' SSM "f '. l SSM 'SS&X/V 1 SSM 'SSM 'SSM ' SSM ' SSM/^ i 11. I i \ //l t i l i l

. .—. i __ ._ i q^M l RSM TT

SSM ". SSM i S ST, ~SSM

S"SM~ T' " B SM~" ^

•y in* 9 f

SSM ISSM ' T" "7T/J j 10375

/ . l

l I0375I6L —| /0*3 /5-Ar- — —l

roO) 2

(T LJ Q<CD

I2MHORNELL TP M 1279

.dS 0 06' IS '

Oi'OO'

LAFORME f P. M 1491

HIGHWAY AND ROUTE No.

OTHER ROADS

TRAILS

SURVEYED LINES:TOWNSHIPS. BASE LINES, ETC. LOTS, MINING CLAIMS, PARCELS, ETC.

UNSUHVEYED LINES:LOT LINESPARCEL BOUNDARYMINING CLAIMS ETC.

RAILWAY AND RIGHT OF WAY

UTILITY LINES

NON-PERENNIAL STREAM

FLOODING OR FLOODING RIGHTS

SUBDIVISION

ORIGINAL SHORELINE

MARSH OR MUSKEG

MINES

DISPOSITION OF CROWN LANDS

TYPE OF DOCUMENT

PATENT, SURFACE ft MINING RIGHTS

SURFACE RIGHTS ONLY

MINING RIGHTS ONLY

LEASE, SURFACE i MINING RIGHTS

SURFACE RIGHTS ONLY

MINING RIGHTS ONLY

LICENCE OF OCCUPATION

CROWN LAND SALE

OROER-IN-COUNC1L

RESERVATION

CANCELLED

SAND S GRAVEL

SYMBOL

ByT

c.s, oco

/-iSCALE : 1 INCH 40 CHAINS

O 1OO IOOC tOOO WOO

METRESD t OO tOO 100 BOO l

ACRES HECTARES

TOWNSHIP

ECHUMTp. 43

DISTRICT

ALGOMAMINING DIVISION

SAULT STE. MARIE

Ministry of Natural Resources

Ontario Surveys and Mapping BranchDate

Whilncy B lock Queen's Park, T oronlo

Plan No.

M.I579

REFERENCESAREAS WITHDRAWN FROM DISPOSITION

-fc- —— i. , i., .———,-———————L-.———.. ~v .. - "~——————————-i —— ..———— - -—— i i-——"-~m-m —— - ——————————. . . . —————-—————,———*

M.R.O- - MINING RIGHTS ONL V

S.R.O. -SURFACE RIGHTS ONLY

M.+ S. - MINING AND SURFACE RIGHTS

Otfer No Dti* D k3"Wflion f t"

42C08SE8673 2.)1094 GLASGOW 220

BRUYERE TWP.

i9T0036 197003;1 --J---

91t?035 970034

KEESICKQUAYASH TWR

m/-—.V '

x oHSs

LfcGEKDHIGHWAY AND P' *UTE No.

OTHER ROADSTRAILSSURVEYED LiN' :

TOWNSHIPS, &ASE LINES, ETCLOTS. MIN'N. CLAIMS, PARCELS, ETC

UNSURVEYED L *FS:LOT LINESPARCEL BOUN'' ARYMINING CLAIM: ^TC

RAILWAY AND RIC-HTOF WAY UTILITY LINES WON-PERENNIAL STREAM' FLOODING OR FLOODING RIGHTS SUBDIVISION OR COMPOSITE PLAN RESERVATIONS ORIGINAL SHORELINE MARSH OR MUSKEGM'NESTRAVERSE MONUMENT

•;.

DfSPOSITION OF CROWN LAKDf,

TYPE OF DOCUMENT

PATENT, SURFACE A MINING R: -*TS

.SURFACE RIGHTS ONt ...,.

. MINING RIGHTS ONLY ....

LEASE, SURFACE A MINING RIG 1 S-" .SURFACE RIGHTSONLY ,...

" . MINING RIGHTSONLY... ....

LICENCE OF OCCUPATION ...... ...ORDER IN-COUNCIL ............. ...

RESERVATION ___...,.........

CANCELLED __..............

SAND i GRAVEL __............

SYMBO

t C

*- i

NOTE: UININQ HIQMTS I1113. V ESTED I N OBIOINAL LANDS ACT. RSO 1 870. C H

:NTtOPF*IOWTOMA'NTES B V THF P UIJ* O StC. 43, SU96f

SCALE: 1 INCH

4OOO 6OOO

C 7OO Mf T**? S

10- 3OOO (7 KM1

TOWNSHIP

DOLM N R. ADMINISTRATIVE DISTRICT

WAWA

SAULT STE. MARIELAND TITLES/ REGISTRY DIVISION

ALGOMA

Ministry o{NaturalResources

Ministry of Northern Developmeand Mine o

Ontan

AUCUST, 1307.Mumtrti

G O^C-dh^ — X f PT^yT^ C. l *Jt*~

RIGGS Tp. M. 1582

S4 J SSM. '-.V| SfcM/ l "SSM' I SSR^feîiB)

SSM , SSM 3SM , SSM t 3iM

27 1,03122' '' J "" ' —— -

Murray Lake

SSM ^ i SSM r l; SM' ISCM J j tsw ,,' saw- /,j s3M,

B D.

DOLSON Tp. M. 1504

O 00in

*.2b

Q.

UJ O*S2- LLJfluO

THE TOWNSHIP OF

: BRUYERE(Tp25R.26)DISTRICT OF

ALGOMA•"•-.•••SAULT STE. MARIE

' -MINING DIVISION1 ' i -

SCALE; I-INCH= 40 CHAINS

LEGENDPATENTED LAND CROWN LAND SALELEASES ,:.. p.LOCATED LAND : - ,

"LICENSE OF OCCUPATION 'MINING RIGHTS ONLY .SURFACE RIGHTS ONLYROADS . .IMPROVED ROADSKING'S HIGHWAYS

'RAILWAYS . . .' •POWER ' LINESMARSH OR MUSKEG'MINES

-.(.S) or C.S"

Lo c, LO

M.n.a- s.ft.6.

NOTES4CX) surface rights reservation jround oil lake 8 rivers

W.PL'A No-'W COVERS H '/'IUV-MANITOWICK ÂKEUt. *Mrt ' TO OOMphl'-F' r'" iO: 6TO GREAT L AKES HOWfc'H CJWp' ML1 MB*!J9 ;.

Aree*5,:,.wHV\clra,wii -(fDm Aôlof -^hf- fl'int'ng Act ^R'So- IS9^]

No-File Dote.

Sectiion

(g) y e. 18/9-7

DATE OF ISSUE

^ 'APR 8 .19BF' '*

SAULT STE. MARIE : MINING RECORDER'S OFFICE

PLAN NO. M. 1505

Glasgow Twp.- MTI265

l-Vr^-T

-'•~- ; ..y SBZi&ltftS&SS l"——" "T—'TT— —T

!'?^JWWL,?0

339889.312549

^^iiSy^^J? fe^S'— - 4- '

22S*7 '*** l

k-"*"" . frID i w "- ip

'^f .. J^^^ll^^ \ 18Ut,3fiWSt. l . ^....^ i.,..^! * - t~ ~ T— — — t~~

81?^-*^?^^*^^^-]

' lv

BRUYERE TR - M.I505

THE TOWNSHIP

RIGGS( FORM. TR 47 )

DISTRICT OF ALGOMA

SAULT STE. MARIE\ M INING DIVISION

SCALE:MNCH-4O CHAINS

LEGEND

PATENTED LAND CROWN LAND SALE LEASES : LOCATED LAND LICENSE OF OCCUPATION

, MINING R IGHTS ONLY SURFACE R IGHTS ONLY ROADSIMPROVED ROADS KING'S.. H IGHWAYS RAILWAYS POWER LINES MARSH Oft MUSKEG MINESCANCELLEDPATENTED S.R.O. ' ,

or \jy C.S.

© Loc.L.O.

M.R.O.s.R.a

C.e

: NOTES1 v400' surface rights reservation along the shores of -all lakes, and r ivers.

Flooding, to the 1142* contour on Wabatongushi Lake . File 90I4I,

RESERVATIONS

NOTE: Mining HfgM* On|j of S 8 M !04i| Optn lo t ' Ho* i P t

out, pr Dtpactino/

OJHC I/B B

a f I'm* B* 7100 A.U. 8AZ ETTE' WAY 3/Cfl)

Atuuj •tilijiunn f ioni jtjUtnqof tht MiP..*t'ft"* trfa-o l aoft

wRe-opened ^or s+o-km^ Auqu^4"tt O - 51 /flic SSM 7010534 - 35- 3U

DATE OF ISSUE

APR 22 , 198r

SAULT S7E. MARIE MINING RitfORDnR'S OFFICE

PLAN NO- M . 1582

'ONTARIO MINISTRY OF NATURAL RESOURCES

SURVEYS AND MAPPING BRANCH

BR

UYE

RE

TP

M.1

505

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.., ;

.rt.

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- .•

-'••

'^'.

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U,,..**^^-.., *J ,-.,'

LOCATION MAP

B4 0 I5' 84 0 00'

EMi ANOMALIES

Flight direction

Flight line number

Fiducials identified on profiles

Dip direction

EM anomaly (see EM legend)

Conductor axis (on EM maps only)

Arcs indicate the conductor has a thickness ^0 m

Magnetic correlation in nT (gammas)

anomaly Identifier"1

r--

Depth isgreater t

- 15 30 45 60

1,'or-n-';'

b

b

4

32

l-

i interpretive" ; ^::r^~ Symbol

' | 1Inphase and

^Quadrature of han Coaxial Coil m is greater than m . 5 ppm m ,. 10 ppm m ... 15 ppm

.... 20pprn

Anomaly ^onciurUinreW s lOO Siemens

Gr 50- l 00 Siemens

W ^0-50 Siemens

(5 i 0-20 Siemens

0 5- IO Siemens

Q l - 5 Siemens

O < l stemen

-^ Questionable anomaly

Interpretive symbol Conductor ("model")

B. Bedrock conductor

D. Narrow bedrock conductor ("thin dike") S. Conductive cover ("horizontal thin sheet")H. Broad conductive rock unit, deep

conductive weathering, thick conductive cover ("half space")

E. Edge of broad conductor ("edge of half space")

L. Culture, e.g. power line, building, fence

LEGENDIsomagnetic l ines (total f ield)

500

too

20

--. . . ... . - . BOOnT

, . - - -.--.- - 100nT

20nT

... .^^ .. .. 10nT

... . - -. . magnetic depression

Magnetic inclination within the survey area: 76 O

aeo

LOC

AT

ION

MA

P

8400

0

Sca

le 1

:250

,000

TE

NO

GA

CO

NS

ULT

AN

TS

IN

C.

MU

RR

AY

LA

KE

AR

EA

. O

NT.

TOTA

L FI

ELD

MA

GN

ETI

CS

BY

DIG

HE

M S

UR

VE

YS

S P

RO

CE

SS

ING

IN

C.

C''G

HF

MIM

S

UR

VE

Y

-AT

E A

PR

. 1Q

88

0

GE

OP

HY

SIC

IST

: f)

.ft/V

JO

B:

103

0

Sca

le 1

:15,

840

DR

AF

TIN

G

By:

G

U

j

^

i-r-

SH

EE

T:

A 1 M

iles

2 . 1

10

94

OCATSON MAP

FI IGHT LINE'S WITH EM ANOMAUES

v - t Inih! dirri lir-M

f liqh! iilir nrminT

F K.IUI t;ils MM'iiiifleu t". M Minfik",

Dip : Jitr; tiui t

i !Vi , M 11) 111 i 11 y ('' t ' t ' f M ! r 111' 11 d j

:nr hX!'. [nn f M m;:]X. ' ir

.J

BY DIGHEM S URVEYS A PROCESSING INC

.if

J 190)0

FLIGHT LINES WITH EM ANOMALIES

13010 13020Flight direction

Flight line number


Dip direction



Arcs indicate the conductor has a thickness > ^Q m

Magnetic correlation in nT (gammas]

anomaly Identifier""

r^

Depth is greater t

- 15 30 45 60

Grcde7

G

5

4

3

2

l-

l interpretive "VAdrT" symbol'*~f^——————— F. ————— | ——————————————————

Inphase and L -Quadrature of

han Coaxial Coil m is greater than ™ . 5 ppm m .. 10 ppm m ... 15 ppm

.... 20 ppm

Anomaly Conductance9 ^ 100 Siemens

(f 50- IOO Siemens

^ 20-50 Siemens

Q 10-20 Siemens

0 5- IO Siemens

O l - 5 Siemens

Q -c l siemen

•^ Questionable anomaly


B. Bedrock conductorD. Narrow bedrock conductor ("thin dike") S. Conductive cover ("horizontal thin sheet")H. Broad conductive rock unit, deep




LEGEND

Isomagnetic lines (enhanced field) Frequency response of magnetic operator

5000

1000

200

SOOOnT

..1000nT

- 200nT

..JOOnT

magnetic depression

Cycles/metre

TENOGA CONSULTANTS I NC. MURRAY LAKE AREA. ONT.

ENHANCED MAGNETICSBY DIGHEM SURVEYS ft PROCESSING INC.

DIGHEM 1 " SURVEY

DATE : APR. 1988

GEOPHYSICIST: p.fV\.

J OB: 1030

DRAFTING By: G. H

SHEET:A

Scale 1:15,840 1 Miles

2 ."l 1094

230

' ' S-fi

lj 29010


Flight direction

Flight line number


Dtp direction



Arcs indicate the conductor has a thickness MO m


anomaly Identifier^*"

^

Depth is greater tt

- 15r 30 r 45 r 60r

G r o d e7

Gt.

4

3

2

l-

i interpretive

' \ \Inphase and

'--Quadrature of ian Coaxial Coil n is greater than n . 5 ppm n .. 10 ppm n ... 15 ppm

.... 20 ppm

Anomaly ConductanceW SlOO Siemens

(r 50- 1 00 Siemens

9 ?Q-50 Siemens

Q 10-20 Siemens

0 5- IO Siemens

O l - 5 Siemens

O ^ l siemenT|C Questionoble anomaly







MURRAY LAKE AREA, ONT.

to ENHANCED MAGNETICSS^ BY DIGHEM SURVEYS S PROCESSING INC.

DIGHEM 1 "

DATE : APR

SURVEY GEOPHYSICIST: p ^ DRAFTING By: G. H-

1988 JOB:103O SHEET: B

0 Scale 1:15,840 1 Miles

2.11094300

84 0 15'

LOCATION MAP

48 0 I5'

84 0 00'



Flight line number

Fiduciais identified on profiles

Dip direction





anomaly^Identifier"^

riDepth isgreater t

- 15 304560

Grade7

6

54

3

2

l-

l interpretiveT0K~ symbol"i i

II Inphase and'--Quadrature of

ian Coaxial Coil"n is greater than 11 . 5 ppm"n .. 10 ppm71 ... 15 ppm

.... 20 ppm

AnomalytC 5

QQ©Oo*

Interpretivesymbol

B.

D.S.H.

E.

L.

Conductances IOO Siemens

0- IOO Siemens

20-50 Siemens

10-20 Siemens

5- IO Siemens

l - 5 Siemens

< l siemen

Questionable anomaly

Conductor ("model")Bedrock conductor

Narrow bedrock conductor ("thin dike")Conductive cover ("horizontal thin sheet")Broad conductive rock unit, deep conductive weathering, thick conductivecover ("half space")Edge of broad conductor("edge of half space")Culture, e.g. power line, building, fence

LEGENDIsomagnetic lines (enhanced field) Frequency respo

magnetic open

5000

1000

200

SOOOnT

1000nT

200nT

..100nT

magnetic depression

10Cycles/metrt

310



Flight line number


Dip direction





anomalyIdentifier""

f*

Depth isgreater tl

* 15 r 30r 45 r60 r

Grade7

6

5

4

3

2

l-

, interpretive

,4jrsp-j Inphase and^ -Quadrature of

ian Coaxial Coiln is greater than n . 5 ppm n ., 10 ppmn ... 15 ppm

.... 20 ppm

Anomaly Conductance9 z I OO stamens

Q 50-100 Siemens

^ 20-50 SiemensQ 10-20 Siemens

0 5- 10 Siemens

O 1-5 Siemens

O * 1 siemen3fc Q uestionable anomaly

Interpretivesymbol Conductor ("model")

B. Bedrock conductorD. Narrow bedrock conductor ("thin dike")S. Conductive cover ("horizontal thin sheet")H. Broad conductive rock unit, deep


E. Edge of broad conductor("edge of half space")



MURRAY LAKE AREA. ONT.

ELECTROMAGNETIC ANOMALIESBY DIGHEM SURVEYS 4 PROCESSING INC

DIGHEM 111 SURVEY

DATE: APR. 1988

GEOPHYSICIST: pyV\

JOB:1O30

DRAFTING By:

SHEET: A


2. 11094

320

-:

LOCATION MAP

Scale 1:250,000



Flight line number


Dip direction





anomaly i Identifier^ y J

Depth is greater than

- 15m 30m45m60m

Grade7

6

5

4

3

2

l-

interpretive ~:7~ symbol

D ___Inphase and

^ -Quadrature of Coaxial Coilis greater than

5 ppm10 ppm15 ppm

.... 20 ppm

Anomaly ConductanceW a IOO Siemens

^ 50 -l 00 Siemens

O 20-50 Siemens

® i 0-20 Siemens

0 5-IO SiemensO l -5 SiemensQ -c l siemen3(6 Questionable anomaly



conductive weathering, thick conductivecover ("half space")



TENOGA CONSULTANTS INC. MURRAY LAKE AREA. ONT

ELECTROMAGNETIC ANOMALIESBY DIGHEM SURVEYS St PROCESSING INC.

DIGHEM'" SURVEYDATE: APR. 1988

GEOPHYSICIST:JOB:1030

DRAFTING By: ^. \(,

SHEET:B


2. 11094330

i-d'.* S ^ ^ . :*1^

*LJL-L

84 0 15

LOCATION MAP

48 0 15'

64 000'



Flight line number


Dip direction





anomaly Identifier"*"

f*

Depth is greater tt

- 15 r: 30 r i 45 r \ 60r

Grade7

6

54

3

2

l-

t interpretive .m^.:T~ symbol''M

l Inphase and ^-Quadrature of

ian Coaxial Coil n is greater than n . 5 ppm n .. 10 ppm n ... 15 ppm

.... 20 ppm

Anomaly ConductanceV a IOO siement

4^ 50-100 Siemens

^ 20-50 Siemens

0 10-20 Siemens

0 5-10 Siemens

O 1-5 Siemens

^ < 1 siemen

^ Questionable anomaly


B. Bedrock conductor D. Narrow bedrock conductor ("thin dike") S. Conductive cover ("horizontal thin sheet")H. Broad conductive rock unit, deep




3-40



Flight line number


Dip direction





anomalyidentifier"'

f*

Depth is greater tt

- 15r 30r45 r60r

Grade7

6

54

3

2

l-

. interpretive• mt": ~ symbolr*n

I Inphase and^ -Quadrature of

ian Coaxial Coiln is greater than T .5 ppmf* .. 10 ppmN ... 15 ppm

.... 20 ppm

Anomaly Conductancew s 100 SiemensW 50- 100 Siemens® 20-50 Siemens

Q 10-20 Siemens0 5- !0 SiemensO 1-5 SiemensO ^ ' siemen

•3^- Questionable anomaly






LEGEND

Contours in percent

10

2

1

Frequency response of VLF-EM filter

10- 10 J 10 Cycles/metre

TENOGA CONSULTANTS INC. MURRAY LAKE AREA ONT.

FILTERED VLF (ANNAPOLIS)BY DIGHEM SURVEYS 4 PROCESSING INC.

DIGHEM 1 " SURVEY

DATE: APR. 1988

GEOPHYSICIST:JOB: 1030

DRAFTING By: Q. HSHEET: A

Scale 1:15,840 Mj|es

2.11094

350

W C\J

OCATION MAP

A

f——'——A"'

Llll i

'./t

LEGENDFrequency response

of VLF-EM filler

10

10 '* Hi "' 1 0 '

Cycles/metre

FLIGHT L INES WITH EM ANOMALIES

13010 1 3020Flight direction

Flight line number


Dip direction

EM anomaly {see EM legend)




anomaly Identifier""

^

Depth is greater t f

- 15r 30 r45 r 60r

Grade7

6

54

3

2

l-

r i u ^ interpretive • mfiZ~ symbolr!fn

j Inphase and '•-Quadrature of

ian Coaxial Coil n is greater than n . 5 ppm n .. 10 ppm 11 .,. 15 ppm

.... 20 ppm

Anomaly ConductanceV ^ IOO SiemensW 50- 100 SiemensW 20-50 Siemens

Q 10-20 Siemens

® 5- 10 Siemens

O 1-5 Siemens

O "^ 1 stemen

^ Ouestiortoble anomaly

Interpretive symbol Conductor {"model")





TENOGA CONSULTANTS INC. MURRAY LAKE AREA ONT.


DIGHEM 1 " SURVEY

DATE: APR. 1988

GEOPHYSICIST: p -fV\

JOB:1030

DRAFTING By: C*. H

SHEET:B


2. 110943G0

s

84 0 I5'

LOCATION MAP

84 000'


KKJH) 13020Flight direction

Flight line number

Fiductals identified on profiles

Dip direction



Arcs indicate the conductor has a thickness > ^0 m


anomalyIdentifier

-•""

Depth is greater t

- 15 304560

Grade7

6

5

4

3

?

l-

i interpretiveVmdr. symbol

" 1 1Inphase and

'--Quadrature of h a n Coaxial Coilm is greater than m . 5 ppmm ,. 10 ppmm ... 15 ppm

,... 20 ppm

Anomoly ConductanceW ^100 Siemens

t 50- 1 00 Siemens

4^ ^0-50 Siemens

Q 10-20 Siemens

0 5- IO Siemens

Q l - 5 Siemens

(J) ^ l siemen

-^ Questionable anomaly



D. Narrow bedrock conductor ("thin dike")S. Conductive cover ("horizontal thin sheet")H. Broad conductive rock unit, deep

conductive weathering, thick conductivecover ("half space"}



Contours in percent

10

2

LEGENDFrequency resp

of VLF-EM til

Cycles/metre

370



Flight line number


Dip direction



Arcs indicate the conductor has a thickness ^-10 m


anomaly^ Identifier""

fs*-

Depth is greater t

- 15 30 45 60

Grade7

G

5

4

3

2

l-

. C 1 H *— i nterpretive" V :::\~ symbol

' l 1II Inphase and ^-Quadrature of

nan Coaxial Coil m is greater than m . 5 ppm m .. 10 ppm m ... 15 ppm

.... 20 ppm

Anomaly Conductance9 S lOO Siemens

^ 50- IOO Siemens

^ 20-50 SiemensQ 10-20 Siemens

® 5- IO Siemens

O l - 5 Siemens

Q < l siemen^ Questionable anomaly

Interpretive symbol Conductor ("model"}


D. Narrow bedrock conductor ("thin dike") S. Conductive cover {"horizontal thin sheet")H. Broad conductive rock unit, deep




1000

-800

GOO —— 500

400

300

250

200

150

125

100

LEGEND

Contours in ohm-mat 10 intervals per decade

TENOGA CONSULTANTS INC. MURRAY LAKE AREA. ONT.

RESISTIVITY (7200 Hz)BY DIGHEM S URVEYS S PROCESSING INC.

DIGHEM'" SURVEYDATE: APR. 1988

GEOPHYSICIST:JOB: 1030

DRAFTING By: G. H

SHEET: A


. 11094

380

~,

200

150

125

100


13010 1 3020Flight direction

Flight line number


Dip direction





anomaly Identifier'*

^

Depth is greater t r

- 15r 30r45 r60r

Grade7

6

5

4

3

2

l-

- i H Interpretive : A j.;tT~ symbol

| Inphase and'••Quadrature of

ian Coaxial Coiln is greater than n . 5 ppmn .. 10 ppmn ... 15 ppm

.... 20 ppm

Anomaly Conductancew ^ I OO SiemensW 50- IOO Siemens

W 20-50 Siemens

Q 1 0-20 Siemens0 5- IO SiemensO l - 5 SiemensQ < l stemen^ Questionable anomaly








RESISTIVITY (7200 Hz)BY DIGHEM SURVEYS 4 PROCESSING INC

DIGHEM 1 " SURVEY

DATE: APR. 1988

GEOPHYSICIST:

JOB: 1030

DRAFTING By:

SHEET:B


2, 1109442C08SE8673 2.11894 GLASGOW 390

LOCATION MAP

84 0 00

FLIGHT LINES W ITH EM ANOMALIES

Flight direction

Flight line number


Dip direction





anomalyIdentifier""

riDepth isgreater t

- 15 : 30: 45; GO

Grade7

G

54

3

2

l-

r l M ,-.-. interpretive; A. -r. symbol

* l \l Inphase and '--Quadrature o!

nan Coaxial CoilT! is greater than TI . 5 ppmTt .. 10 ppm11 ...15 ppm

.... 20 ppm

Anomaly^

ConductanceSlOO Siemens

V 50- IOO Siemens

ffi

Q©Oo*

Interpretivesymbol

B.

D.

S.

H.

E.

L.

20-50 Siemens

10-20 Siemens

5- IO Siemens

I - 5 Siemens

< l siemen



Narrow bedrock conductor ("thin diku") Conductive cover ("horizontal thin sheet")Broad conductive rock unit, deep conductive weathering, thick conductivecover ("half space")Edge of broad conductor("edge of half space")Culture, e.g. power fine, building, fence

LEGEND

Contours i n ohm-tnat 10 intervals per decade

42COBSEB673 2.11094 GLASGOW •400

WITH EM ANOMALIES

light direction

: light line number

r iducials identified on profiles

)ip direction

:M anomaly (see EM legend)


Vrcs indicate the conductor las a thickness MO m


0 rodey

6

5

4

3

2

l

Anomalyt

ConductanceSr IOO Siemens

(p 50- IOO Siemens

W

S

eoo

20- 50 Siemens

1 0-20 Siemens

5- IO Siemens

I-5 Siemens

•c l siemen

— -^ Questionable anomaly

anomaly j interpretive Identifier ~V*:::^ sy mbo1

r" f i1 J Inphase and

Depth is '--Quadrature o fgreater than Coaxial Coil

15 m j s greater lhan30 m . 5 ppm 45 m .. 10 ppm 60(11 ... 15 ppm

| .... 20 ppm

Interpretive symbol

B.

D. S. H.

E.

L.

Conductor ("model")Bedrock conductor Narrow bedrock conductor ("thin dikt1 ") Conductive cover ("horizontal thin sheet")Broad conductive rock unit, deep conductive weathering, thick conductive cover ("half space")Edge of broad conductor ("edge of half space")Culture, e.g. power line, building, fence

LEGEND

Isomagnetic tines (enhanced field)

24

^ 5000 SOOOnT 2 0

^^^^ 1000 . 1000nT u IBT33

Frequency response of magnetic operator

/^'fft//^

REJECT f//////. 200 . 200nT i. r2 \ l'/-''///^

E r/////// - "- ^ 1 00nT ** " ^ /,

(^ "\ m agnetic ^-- __ -'^ d epression 0

10' d 10 3 1C

.

-2"

Cycles/metre


MURRAY LAKE AREA. ONT

ENHANCED MAGNETICSBY DIGHEM SURVEYS A PROCESSING INC.

DIGHEM 1 " SURVEY

DATE: APR. 1988

GEOPHYSICIST:JOB:103O

DRAFTING By: d. H

SHEET: C

O Scale 1:15,840 1 Miles

.11004

GHT LINES WITH BIVI ANOMALIES

;——————- Flight direction

——— Flight l ine number\— Fiducials identified on profiles

— Dip direction

— EM anomaly (see EM legend)

— Conductor axis (on EM maps only)



anomaly Identifier

^

Depth isgreater tt

- 15 r 30 r 45 r60r

Grade7

6

5

4

3

2

l-

r i interpretiveV^;.:. symbol"Tt ^i

f Inphase and^-Quadrature of

ian Coaxial Coiln is greater than n . 5 ppm n .. 10 ppmn ... 15 ppm

.... 20 ppm

Anomoly Conductance9 s lOO Siemens

^ 50-100 Siemens

^ 20-50 Siemens

0 10-20 Siemens

0 5- 10 Siemens

O 1-5 Siemens

Q -: 1 siemen^ Questionable anomaly








ELECTROMAGNETIC ANOMALIESBY DIGHEM SURVEYS A PROCESSING INC.

DIGHEM 1 " SURVEY

DATE: APR. 1988

GEOPHYSICIST: Q.fV\.

JOB:1030

DRAFTING By:

SHEET: C


2. 11094

"H EM ANOMALIES

t direction

t lino number

;ials identified on profiles

lirection

nomaly (see EM legend)

luctor axis (on EM maps only)

indicate the conductor i thickness > ^0 m

letic correlation in nT (gammas)

anomalyIdentifier"""

r-\-Depth isgreater t

- 15 304560

C.Hjru'

f(i

b4*,

?

l-

i interpretive:^fc::.: - symbol

" l lfflnphase and^Quadrature of

han Coaxial Coil71 is greater than 71 . 5 ppmm .. 10 ppmm ... 15 ppm

.... 20 ppm

Ah' mini v

Oir \9Q0Oo*

Interpretivesymbol

B.

D.S.H.

E.

L.

w;.nductunce

i* l 00 siemeiB

iO - 1 00 S iemens

? 0 i 0 s i e m e R i,

10-^0 Siemens

5-10 Siemens

1 - 5 iiemeni

i 1 siemen



Narrow bedrock conductor ("thin dike")Conductive cover ("horizontal thin sheet")Broad conductive rock unit, deepconductive weathering, thick conductivecover ("half space")Edge of broad conductor("edge of half space")Culture, e.g. power line, building, fence

Contours in percent

10

2

i

LEGENDFrequency response

of VLF-EM filter

10 ' 1C. " l!

Cycles/metre

TENOGA CONSULTANTS INC.MURRAY LAKE AREA ONT.


DIGHEM 1 " SURVEY

DATE: APR. 1988

GEOPHYSICIST: D .#\.JOB: 1030

DRAFTING By: G( .\(

SHEET: C


2.11094

;M ANOMALIES

ction

number

dentified on profiles

on

ily (see EM legend)

- axis (on EM maps only)

ate the conductor kness ^0 m

correlation in nT (gammas)

u di! C

i

r,

s4

3

2

l-

anomaly r i n interpretiveIdentifier Tlk::.:-v symbo1f'

Depth isgreater than

- 15m 30 nn 45m60m

Inphase and-Quadrature ofCoaxial Coilis greater than

5 ppm 10 ppm15 ppm

.... 20 ppm

Anomaly

9

V

Q

Q©Oo#

Interpretivesymbol

B.

D.S.H.

E.

L.

;",C'Md:ir.tnrif,R

t^ l O') Siemens

iO- 1 00 Siemens

?() b'J S iemens.

i 0-20 Siemens

5-10 Siemens

1 - 5 Siemens

•c l siemen



Narrow bedrock conductor ("thin dike")Conductive cover ("horizontal thin sheet")Broad conductive rock unit, deep conductive weathering, thick conductive cover ("half space")Edge of broad conductor{"edge of half space")Culture, e.g. power line, building, fence

1000

BOO --GOO

- 500

-400

300

250

200

150

125

100

LEGEND

Contours in olim-mat 10 intervals per decade



RESISTIVITY (7200 Hz)BY DIGHEM SURVEYS A PROCESSING INC

DIGHEM 1 " SURVEY

DATE: APR. 1988

GEOPHYSICIST:JOB:1030

DRAFTING By:

SHEETrC


2,11094

dighem iii sur - ontario...flight lines were flown with a line separation of 150 metres in an...

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