rpt on airborne geophys surv lizar proj

36
Assessment Report Airborne Geophysical Survey Lizar Project Lizar, Nameigos, Breckenridge, Mosambik Townships Sault Ste Marie Mining Division Hornepayne Area, Ontario RECEIVED MAR OS /i- GEOSCIENCE ASSESSMENT OFFICE____ Jari Paakki, MSc., PGeo February 27, 2004 Thunder Bay, Ontario 42C16SW2002 2.27285 LIZAR 010

Upload: others

Post on 21-Mar-2022

5 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Assessment Report

Airborne Geophysical Survey

Lizar Project

Lizar, Nameigos, Breckenridge, Mosambik Townships

Sault Ste Marie Mining Division

Hornepayne Area, Ontario

RECEIVEDMAR OS /i-

GEOSCIENCE ASSESSMENT OFFICE____

Jari Paakki, MSc., PGeo

February 27, 2004 Thunder Bay, Ontario

42C16SW2002 2.27285 LIZAR 010

Page 2: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

TABLE OF CONTENTS

Page

Introduction 1

Geophysical Survey 4

Cost Statement 5

Statement of Qualifications 6

List of Figures and Maps

Figures:

Figure 1 General Location Map 2

Figure 2 Claim Location Sketch 3

Maps (In Pocket):

Five map sheets (North Central, West, Central, Southwest and South Central) with flight lines and electromagnetics responses: scale 1:5000

Five map sheets (North Central, West, Central, Southwest and South Central) with magnetics data in nanotesla (nT); 1:5000

Appendices

Appendix l Airborne System and Survey Specifications

Page 3: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Airborne Geophysical SurveyLizar Property

Sault Ste Marie Mining Division Hornepayne Area, Ontario

Introduction

At the request of Teck Cominco Limited, Fugro Airborne Systems conducted an

airborne electromagnetic and magnetic survey over the Lizar property. The total

survey consisted of 1,503 line kilometres with 701 line kilometres covering claims

presented in this report.

The Lizar property is located some 100 kilometres east of the Hemlo mines,

approximately 40 kilometres south of the town of Hornepayne (Fig. 1). The

property is underlain by mainly upper greenschist facies mafic volcanics and

lesser sedimentary rocks, felsic lithologies and local gabbroic to ultramafic

intrusions. Outcrop exposure is relatively poor comprising less than 1-207o in

many parts of the property.

Freewest Resources Canada Inc. is the recorded holder of claims which Teck

Cominco Limited has an option agreement. The main claim block consists of 450

units located in Lizar, Nameigos, Breckenridge and Mosambik townships (Fig. 2).

The centre of the propertys is at approximately UTM 678,000 mE and 5,410,000

mlM (NAD 83, Zone 16).

Page 4: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Figure 1: Location Map

Page 5: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

; /Lizar Twp.-^ 14- Mosambik Twp.

'Breckenridge T

S;Nameigos Twp.

ure 2: Claim Sketch Lizar Project

Page 6: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Geophysical Survey

The airborne electromagnetic and magnetic survey was completed from October

12 to October 23, 2002 by Fugro Airborne Surveys, Ottawa, Ontario. The

Hornepayne airstrip served as the base of survey operations.

The aircraft used for this survey was a specially modified Casa-212 aircraft

equipped with a magnetometer and a new GEOTEM 1000 Receiver capable of

deeper ground penetration. The complete aircraft and survey specifications are

appended (Appendix l). Fight lines were oriented north-south spaced 100 metres

apart. Each flight line was 8 kilometres in length which is the minimum required

for this specific survey for proper coupling. West-east oriented flight tie lines

were positioned at approximately 2 kilometre spacings as control lines.

Results of the survey are presented on ten 1:5 000 scale map sheets with a map

key shown on each map (in back pocket). Electromagnetic data is presented

with EM anomaly peak response symbols along with flight lines and magnetics

data is contoured at 50 nT (nanotesla) intervals.

The following summarizes geophysical anomalies outlined by the GEOTEM

survey on each map sheet with respect to mining claims covered in this

assessment report:

1. North Central Sheet: Three, 7-8 channel EM anomalies in the northwest corner

of claim 1246634. No associated magnetics anomaly.

2. Central Sheet: Two, weaker 5-6 channel EM anomalies associated with an

increased magnetic response in the northeast part of claim 1239724.

Page 7: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

3. West Sheet: Several strong EM anomalies with associated magnetic high

response within claim 1239724. Also a single isolated 7-8 channel EM anomaly

near the northwest corner of claim 12436621.

4. South West Sheet: A number of strong (11-12 channel) EM anomalies with

claim 1215489 explained by outcropping massive sulphides. Also two, 5-8

channel anomalies in the south half of claim 1246630.

5. South Central Sheet: No significant anomalies.

All significant EM anomalies outside of the claims presented here have been

covered by staking and recorded under Freewest Resources Canada Inc.

Cost Statement

Airborne Magnetics and ElectromagneticsSurvey 361,688

Aircraft Mobilization/Demobilization S11,754

Aircraft Stand-By Due To Poor Weather S 2, 626

TOTAL__________________________S76.068

Page 8: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Statement of Qualifications

l, Jari Paakki, do certify that:

l am a registered Professional Geoscientist (No. 0230) with the Association of Professional Geoscientists of Ontario.

l graduated from Laurentian University in 1990 with a Bachelor of Science Degree and in 1992 with a Master of Science Degree, both in Geology.

l have been employed as a geologist continuously for the last 11 years.

The data contained in this report and conclusions drawn from it are true and accurate to the best of my knowledge.

y Date" 7 "Jari PaakkiSenior Project Geologist Teck Cominco Limited Thunder Bay, Ontario

Page 9: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Appendix l

Airborne System and Survey Specifications

Page 10: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GR O

II

SURVEY OPERATIONS

Survey Coverage and Location

The survey area (Figure 2) was flown from Hornepayne, Ontario used as the base of operations.

-85" -84"

-85

Figure 2. Survey Location.

Line direction, spacing, as well as size of the flown survey are shown in Table 1. In all, 1,503 line kilometres of data were collected.

FAS-DPP-Rev.001 Page 6 of 84

Page 11: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GRO

Table 1

AREA

Lizar Project

LINE DIRECTION

N-S

LINE SPACING

100m

TIE-LINE DIRECTION

E-W

TIE-LINE SPACING

~ 2000 m

SIZE

1,5031km 1

Aircraft and Geophysical On-Board Equipment

Aircraft

Operator

Registration

Survey speed

Magnetometer

Electromagnetic system

Transmitter:

Receiver:

Base frequency:

Pulse width:

Pulse delay:

Off-time:

Point value:

Transmitter current:

Dipole moment:

Casa-212 (Twin Turbo Propeller)

FUGRO AIRBORNE SURVEYS

C-GDPP

125 knots 1 145 mph 1 65 m/s Figure 3. Magnetometer and GEOTEM Receiver.

Scintrex Cs-2 single cell cesium vapour, towed-bird installation, sensitivity = 0.01 nT1 , sampling rate = 0.1 s, ambient range 20,000 to 100,000 nT. The general noise envelope was kept below 0.5 nT. The nominal sensor height was -73 m above ground.

GEOTEM 100(f 20 channel multicoil system

Vertical axis loop mounted on aircraft of 231 m2

Number of turns: 6

Nominal height above ground of 120 m

Multicoil system (X, Y and Z) with a final recording rate of 4 samples/second, for the recording of 20 channels of X, Y and Z-coil data. The nominal height above ground is ~70 m, placed -130 m behind the centre of the transmitter loop.

90 Hz

2083 us

130 us

3385 us

43.4 MS

-500 A

-7x105Am2 Figure 4. Modified CASA-212 on survey.

1 One nanotesla (nT) is the S.l. equivalent of one gamma.

FAS-DPP-Rev.001 Page 7 of 84

Page 12: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

IGRO

GEOTEM 90 Hz frequency electromagnetic data windows:

Table 2Channel

12345678g1011121314151617181920

Start (p)410233750565860626568727680859198105113121

End (p)9223649555759616467717579849097104112120128

Width (p)61314136222334445677888

Start (ms)0.13

0.3910.9551.5632.1272.3872.4742.5612.6482.7782.908-3.0823.2553.4293.6463.9064.2104.5144.8615.208

End (ms)0.3910.9551.5632.1272.3872.4742.5612.6482.7782.9083.0823.2553.4293.6463.9064.2104.5144.8615.2085.556

Mid (ms)0.2600.6731.2591.8452.2572.4312.5172.6042.7132.8432.9953.1683.3423.5373.7764.0584.3624.6885.0355.382

Digital Acquisition:

Analogue Recorder:

Barometric Altimeter:

Radar Altimeter.

Camera:

Electronic Navigation:

FUGRO AIRBORNE SURVEYS GEODAS SYSTEM.

RMS GR-33, showing the total magnetic field at 2 vertical scales, the radar and barometric altimeters, the time-constant filtered traces of dB/dt X-coil off-time channels 9-20 data and the on-time channel 1, the raw traces of both dB/dt and B-field X, Y and Z-coil channel 20, the EM X and Y-coils primary fields, the power line monitor, the 4th difference of the magnetics, the X- coil earth's field monitor and the fiducials.

Rosemount 1241 M, sensitivity 1 ft, 1 s recording interval.

King, accuracy 27o, sensitivity 1 ft, range O to 2500 ft, 1 sec recording interval.

Panasonic colour video, super VMS, model WV-CL302.

NOVATEL Propak 4E-315R 12 channel GPS receiver, 1 sec receding interval, with a resolution of 0.00001 degree and an accuracy of 5 m.

FAS-DPP-Rev.001 Page 8 of 84

Page 13: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GRO

Analogue recorder display setup:

Table 3Name JDescirptionXF09 kJB/dt X coil Time Filtered Channel 09XF10XF11XF12XF13XF14XF15XF16XF17XF18XF19XF20BZ20BX20X20Z20X01XPLXEFMXPRMYPRMY20CMAGFMAGRADRkoiFBARO

dB/dt X coil Time Filtered Channel 10dB/dt X coil Time Filtered Channel 1 1dB/dt X coil Time Filtered Channel 12dB/dt X coil Time Filtered Channel 13dB/dt X coil Time Filtered Channel 14dB/dt X coil Time Filtered Channel 15dB/dt X coil Time Filtered Channel 16dB/dt X coil Time Filtered Channel 17dB/dt X coil Time Filtered Channel 18dB/dt X coil Time Filtered Channel 19dB/dt X coil Time Filtered Channel 20B-Field Z coil Raw channel 20B-Field X coil Raw channel 20dB/dt X coil Raw channel 20dB/dt X coil Raw channel 20dB/dt X coil Raw channel 01Powerline MonitorEarth Field MonitorX Primary FieldY Primary FielddB/dt Y coil Raw channel 20Coarse Total Field MagneticsFine Total Field MagneticsRadar AltimieterMagnetic 4th Difference FilteredBarometric Altimeter

Scale10000100001000010000100001000010000100001000010000100001000080000800002000020000500000.210.413.320000300100501100

UnitpV/cmpV/cmpV/cmpV/cmpV/cmpV/cmpV/cmpV/cmpV/cmpV/cmpV/cmpV/cmfT/cmfT/cmpV/cmpV/cmpV/cmV/cmV/cmV/cmV/cmpV/cmnT/cmnT/cmft/cmnT/cmft/cm

Base Station Equipment

Magnetometer:

GPS Receiver:

Computer:

Converter:

Scintrex CS-2 single cell cesium vapour, mounted in a magnetically quiet area, measuring the total intensity of the earth's magnetic field in units of 0.01 nT at intervals of 1 s, within a noise envelope of 0.20 nT.

NOVATEL Propak 4E-315R 12 channel GPS receiver, 1 sec receding interval, with a resolution of 0.00001 degree and an accuracy of 5 m.

Laptop, Pentium II model, 220 Mhz.

Picodas, model MEP710 3/10901 GTS 780008.

FAS-DPP-Rev.001 Page 9 of 84

Page 14: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Field Office Equipment

Computer:

Printer:

DAT Tape Drive:

Hard Drive:

Dell Inspiron 8000 Pentium III laptop with 30 GB hard drive.

Hewlett Packard DeskJet 690C.

DDS-90 4 mm.

8 GB Removable hard drive.

Survey Specifications

Traverse Line Direction:

Traverse Line Spacing:

Tie Line Direction:

Tie Line Spacing:

See Table 1.

See Table 1.

See Table 1.

See Table 1.

Navigation:

Altitude:

Magnetic Noise Levels:

EM Noise Levels:

Diurnal Variations:

Differential GPS. Traverse and tie line deviation was not to exceed the theoretical flight path by 50 m over a distance ^ km.

The survey was flown at a mean terrain clearance of 120 m. Altitude was not to exceed 20 m from the nominal over 3 km.

The noise envelope on the magnetic data was not to exceed 0.25 nT over 3 km.

The noise envelope on the raw electromagnetic dB/dt X- and Z- coil channel 20 was not to exceed 3500 pT/s over a distance greater than 3 km as displayed on the raw analogue traces.

Deviations were not to exceed 10 nT over a chord of 30 sec.

Survey Calibrations

EM System Calibration: The EM system was calibrated at high altitude before and after every production flight. The effectiveness of the compensation was evaluated by checking the system response to the series of the survey aircraft "pitches". If necessary, calibration was repeated until satisfactory results were obtained.

FAS-DPP-Rev.001 Page 10 of 84

Page 15: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GR O

Field Crew

Project Manager:

Geophysicist:

Data Processor:

Pilots:

Electronics Operator:

Engineer:

E. Aparicio

T. Carmichael

M. Carriere

M. Williston, K. Wilson, L. Maike

E. Aparicio

S. Erickson

Production Statistics

Flying dates:

Total production:

Number of production flights:

Hours of production flying:

Number of km/hour of production flying:

Number of km/average production flight:

Number of hours/average production flight: 3.3 hour/flight

Days lost due to weather: 1

October 14th - October 21 st, 2002

1.503 line kilometres

7

22.8 hrs

65.9 km/hour

214.7 km/flight

FAS-DPP-Rev.001 Page 11 of 84

Page 16: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Ill

QUALITY CONTROL AND COMPILATION PROCEDURES

In the field after each flight, all analogue records were examined as a preliminary assessment of the noise level of the recorded data. Altimeter deviations from the prescribed flying altitudes were also closely examined as well as the diurnal activity, as recorded on the base station.

All digital data were verified for validity and continuity. The data from the aircraft and base station was transferred to the PC's hard disk. Basic statistics were generated for each parameter recorded, these included: the minimum, maximum, and mean values; the standard deviation; and any null values located. All recorded parameters were edited for spikes or datum shifts, followed by final data verification via an interactive graphics screen with on-screen editing and interpolation routines.

The quality of the GPS navigation was controlled on a daily basis by recovering the flight path of the aircraft. The C3NAVG2 (Combined Code and Carrier for NAVigation with GPS and GLONASS) correction programme employs the raw ranges from the base station to create improved models of clock error, atmospheric error, satellite orbit, and selective availability. These models are used to improve the conversion of aircraft raw ranges to aircraft position.

Checking all data for adherence to specifications was carried out in the field by the FUGRO AIRBORNE SURVEYS field geophysicist.

FAS-DPP-Rev.001 Page 12 of 84

Page 17: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GRO

IVDATA PROCESSING

Flight Path Recovery

GPS Recovery:

Projection:

Datum:

Ellipsoid:

Central meridian:

False Easting:

False Northing:

Scale factor:

Altitude Data

Noise editing:

Noise filtering:

GPS positions recalculated from the recorded raw range data, and differentially corrected.

Universal Transverse Mercator (UTM Zone 16N).

NAD 83.

GRS 1980.

870 West.

500000 metres.

O metres.

0.99960.

Alfatrim median filter used to eliminate the two highest and two lowest values from the statistical distribution of a 9 point sample window for the radar altimeter. For the barometric altimeter the alfatrim median filter eliminated only the single highest and lowest points from the statistical distribution of a 5 point window.

Triangular filter set to remove radar, baro and GPS wavelengths less than 4 seconds.

Base Station Diurnal Magnetics

Noise editing: Alfatrim median filter used to eliminate the two highest and two lowest values from the statistical distribution of a 9 point sample window.

Culture editing: Polynomial interpolation via a graphic screen editor.

Noise filtering: Running average filter set to remove wavelengths less than 2 seconds.

Extraction of long wavelength component:Low pass filter set to retain only wavelengths greater than 75 seconds.

Airborne Magnetics

Lag correction: 3.7 seconds.

FAS-DPP-Rev.001 Page 13 of 84

Page 18: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GR O

Noise editing: 4th difference editing routine set to remove spikes greater than 0.5 nT,followed by an alfatrim median filter eliminating the high and the low value from its calculation over a 5 point window.

Noise filtering: Triangular filter set to remove noise events having a wavelength less than 0.5seconds and an amplitude less than 0.5 nT.

Diurnal substraction: The long wavelength component of the diurnal (greater than 75 seconds) wasremoved from the data, prior to the levelling analysis.

IGRF removal date: 2002.8.

Gridding: The data was g ridded using an Akima routine with a grid cell size of 20 m.

Residual Magnetic Intensity:

The residual magnetic intensity (RMI) is derived from the total magnetic intensity (TMI), the diurnal, and the regional magnetic field. The total magnetic intensity is measured in the aircraft, the diurnal is measured from the ground station, and the regional magnetic field is calculated from the International Geomagnetic Reference Field (IGRF). The low frequency component of the diurnal is extracted from the filtered ground station data and removed from the TMI. The average of the diurnal is then added back in to obtain the resultant total magnetic intensity. The regional magnetic field, calculated for the specific survey location and the time of the survey, is then removed from the resultant total magnetic intensity. After levelling the residual magnetic intensity is completed.

Levelling:The first stage of levelling of the magnetic data (correcting for residual diurnal effects, altitude differences and positioning errors) was done on the line data by automatically comparing the values of the total field at the intersection of each line and tie line. The differences were analyzed and a compensation was calculated at each intersection in order to provide a pattern of smoothly varying adjustments along each line and tie-line. Erratic differences, implying an error in the intersection location, were carefully checked and corrected.

The second step consisted of applying a micro-levelling routine to the gridded data in order to remove errors that are due to diurnal variations. During the micro-levelling routine a compensation grid was created and profile data was then extracted along the survey lines and stored in the final dataset as the levelling compensation.

The final Residual Magnetic Intensity was calculated in the following manner:

Filtered airborne Total Magnetic Intensity- Low frequency component of the Diurnal data- Average diurnal data value-IGRF+ Levelling compensation= Final Residual Magnetic Intensity

FAS-DPP-Rev.001 Page 14 of 84

Page 19: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GR O

Electromagnetics

dB/dt Data

Lag correction: 4.2 seconds.

Data correction: The x, y and z-coil data were processed from the 20 raw channels recordedat 4 samples per second.

The following processing steps were applied to the dB/dt data from all coil sets:

a) The data from channels 1 to 5 (on-time) and 6 to 20 (off-time) were corrected for drift in flight form (prior to cutting the recorded data back to the correct line limits) by passing a low order polynomial function through the baseline minima along each channel, via a graphic screen display;

b) The data were edited for residual spheric spikes by examining the decay pattern of each individual EM transient. Bad decays (i.e. not fitting a normal exponential function) were deleted and replaced by interpolation;

c) Corrections were made in the x- and z-coil data for low frequency, incoherent noise elements (that do not correlate from channel to channel) in the data, by analysing the decay patterns of channels 10 to 20 (OMEGA process).

d) Noise filtering was done using an adaptive filter technique based on time domain triangular operators. Using a 2nd difference value to identify changes in gradient along each channel, minimal filtering (5 point convolution) is applied over the peaks of the anomalies, ranging in set increments up to a maximum amount of filtering in the resistive background areas (27 points for both the x-coil and the z-coil data).

e) This was followed by the application of a small running average filter.

f) The filtered data from the x, y and z-coils were then re-sampled to a rate of 5 samples/s and combined into a common file for archiving.

NOTE : A fault developed with the transmitter controller board which affected the data from flights 6 to 11. This problem resulted in a slight shift in the group delay at the start of the waveform and the introduction of some spikes. This was remedied in processing by adjusting the gate positions, along the waveform, to compensate for the shift in the group delay and re-windowing the data from the halfwave files. Small irregularities in the on-time channels of the B-Field data may result.

B-field Data

Processing steps: The processing of the B-Field data stream is essentially the same as thatdescribed above for the regular dB/dt stream. The lag adjustment used was the same, followed by: 1) drift adjustments; 2) spike editing for spheric events; 3) correction for low frequency, incoherent and non-decaying noise events; and 4) final noise filtering with an adaptive filter. The processing step 3 was applied in the B-field processing but not in the dB/dt processing. By nature, the B-Field data will contain a higher degree of coherency of the noise that

FAS-DPP-Rev.001 Page 15 of 84

Page 20: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

en o

automatically gets eliminated (or considerably attenuated) in the regular dB/dt, since this is the time derivative of the signal.

B-field Data Advantage:

The introduction of the B-Field data stream, as part of the GEOTEM system, provides the explorationist with a more effective tool for exploration in a broader range of geological environments and for a larger class of target priorities.

The advantage of the B-Field data compared with the normal voltage data (dB/dt) are as follows:

1. A broader range of target conductance that the system is sensitive to (the B- field is sensitive to bodies with conductance as great as 100,000 Siemens);

Enhancement of the slowly decaying response of good conductors;

Suppression of rapidly decaying response of less conductive overburden;

Reduction in the effect of spherics on the data;

2.

3.

4.

5.

6.

An enhanced ability to interpret anomalies due to conductors below thick conductive overburden;

Reduced dynamic range of the measured response (easier data processing and display).

Figures 5 and 6 display the calculated vertical plate response for the GEOTEM signal for the dB/dt and B-field respectively. For the dB/dt response, you will note that the amplitude of the early channel peaks at about 25 Siemens, and the late channels at about 250 Siemens. As the conductance exceeds 1000 Siemens the response curves quickly roll back into the noise level. For the B-Field response, the early channel amplitude peaks at about 80 Siemens and the late channel at about 550 Siemens. The projected extension of the graph in the direction of increasing conductance, where the response would roll back into the noise level, would be close to 100,000 Siemens. Thus, a strong conductor, having a conductance of several thousand Siemens, would be difficult to interpret on the dB/dt data, since the response would be mixed in with the background noise. However, this strong conductor would stand out clearly on the B-Field data, although it would have an unusual character, being a moderate to high amplitude response, exhibiting almost no decay.

600 x 300 m vertical plate nomogram

30 Hz, 4 milli second configuration

10 100conductance (S)

1000

Figure 5. dB/dt vertical plate nomogram.

600 x 300 m vertical plate nomogram

30 Hz, 4 millisecond configuration

1 10 100conductance (S)

1000

Figure 6. B-field vertical plate nomogram.

FAS-DPP-Rev.001 Page 16 of 84

Page 21: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

GRO

In theory, the response from a super conductor (50,000 to 100,000 Siemens) would be seen on the B-Field data as a low amplitude, non-decaying anomaly, not visible in the off-time channels of the dB/dt stream. Caution must be exercised here, as this signature can also reflect a residual noise event in the B-Field data. In this situation, careful examination of the dB/dt on-time (in-pulse) data is required to resolve the ambiguity. If the feature were strictly a noise event, it would be not be present in the dB/dt off-time data stream. This would locate the response at the resistive limit, and the mid in-pulse channel (normally identified as channel 3) would reflect little but background noise, or at best a weak negative peak. If, on the other hand, the feature does indeed reflect a superconductor, then this would locate the response at the inductive limit. In this situation, channel 3 of the dB/dt stream will be a mirror image of the transmitted pulse, i.e. a large negative.

EM Decay Constant:The decay constant values are obtained by fitting the channel data to a single exponential function of the form:

YsAe "T ,where A = amplitude at time zero, t = time in microseconds and t is the decay constant. A semi-log plot of this exponential function will be displayed as a straight 4ine, the slope of which will reflect the rate of decay and therefore the strength of the conductor. A slow rate of decay, reflecting a high conductance, will be represented by a high decay constant value. As a single parameter, the decay constant provides more useful information than the amplitude data alone of any given single channel, as it indicates not only the peak position of the response but also the relative strength of the conductor.For the present dataset, the decay constant was calculated by fitting the dB/dt X-coil data from channels 8 to 20 to the exponential function.

Anomaly Selection:EM anomalies were selected by fitting the data from the dB/dt X-coil channels 9 to 20 to a vertical plate model, in order to extract conductance and depth information. Comparisons of the response from the X and Z coil data were made during the anomaly review for the final selection of the anomalies.Refer to Appendix F for a full listing of the anomaly selections which provides the particulars of each selected anomaly, including the conductivity-thickness-product (GTP) and the depth of the conductor below surface. It is important to note that the derived values of GTP and depth associated with the anomaly selections are only valid if the geometry of the conductive source can be well approximated by a vertical plate of 300 by 600 m. A note is also included to guide the correct evaluation of the anomaly information.

Apparent Conductance Calculation:The apparent conductance values were computed from the full waveform (all 20 channels) of the combined dB/dt X and Z-coils data by fitting to a thin sheet model. The results are stored in milliSiemens (mS).

Total Energy Envelope:To combine the benefits of the measurements from both the X and Z coil data and reduce the asymmetry in the shape of the anomalies, the data from channel 9 of both the X and Z coils were used to compute the Total Energy Envelope. This was done through an Hilbert transform and essentially reflects the square root of the sum of the squares of each component. This parameter provides a good picture of the overall near-surface conductivity.

Gridding:The EM data were gridded with a 20 m grid cell size, using a linear interpolation.

FAS-DPP-Rev.001 Page 17 of 84

Page 22: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

ONTMRIO MINISTRY OF NORTHERN DEVELOPMENT AND MINES

Work Report Summary

Transaction No: W0450.00353

Recording Date: 2004-MAR-03

Approval Date: 2004-MAR-05

Client(s):

300786 RESSOURCES

Survey Type(s):

AEM

Status: APPROVED

Work Done from: 2002-OCT-12

to: 2002-OCT-23

FREEWEST CANADA INC., FREEWEST RESOURCES CANADA INC.

AMAG

Work Report Details:

Claim#

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

SSM

1166901

1166902

1166903

1215489

1218138

1218139

1237578

1237579

1237584

1239714

1239724

1239725

1239727

1246613

1246614

1246615

1246616

1246617

1246618

1246619

1246620

1246621

1246622

1246623

1246627

1246628

1246629

1246630

1246631

1246632

1246633

1246634

1246635

1246636

Perform

53,038

S3,581

52,930

51,736

52,821

52,279

51,736

51,411

51,085

52,713

53,147

51,085

52,713

52,821

S2.713

52,062

52,713

52,387

52,279

52,930

5868

52,930

52,930

51,519

52,821

5760

52,496

52,279

51,736

51,519

5326

52,821

52,821

5760

Perform Approve

53,038

53,581

52,930

51,736

52,821

52,279

51,736

51,411

51,085

52,713

53,147

51,085

52,713

52,821

52,713

52,062

52,713

52,387

52,279

52,930

5868

52,930

52,930

51,519

52,821

5760

52,496

52,279

51,736

51,519

5326

52,821

52,821

5760

Applied

50

50

SO

SO

SO

SO

SO

SO

SO

SO

50

SO

SO

50

50

50

SO

SO

sosoSO

so50

SO

56,400

51,600

56,000

56,000

54,000

54,000

S4.800

56,400

56,400

56,400

Applied Approve

SO

soso5050

SO

50

soSO

soSO

SO

sosososoSO

SO

SO

50

SO

SO

SO

SO

56,400

51,600

56,000

56,000

54,000

54,000

S4.800

56,400

56,400

56,400

Assign

53

53

S2

51

52

,038

,581

.930

,736

,821

52,279

S1

51

51

52

S3

S1

52

52

52

52

52

52

S2

52

,736

.411

,085

713

.147

.085

,713

.821

.713

,062

,713

,387

,279

.930

5868

52

S2

.930

,930

S292

SO

SO

SO

50

50

SO

SO

SO

50

50

Assign Approve

3,038

3,581

2,930

1,736

2,821

2,279

1,736

1,411

1,085

2,713

3,147

1,085

2,713

2,821

2,713

2,062

2,713

2,387

2,279

2,930

868

2,930

2,930

292

0

0

0

0

0

0

0

0

0

0

Reserve

SO

SO

SO

sosoSO

50

SO

soso50

50

SO

SO

SO

SO

SO

sosososoSO

SO

S1.227

52,821

S760

52,496

52,279

51,736

S1.519

S326

52,821

52,821

5760

Reserve Approve

SO

SO

SO

sosoSO

50

50

SO

SO

50

50

SO

50

SO

SO

SO

SO

sosoSO

soSO

S1.227

S2.821

S760

S2.496

52,279

51,736

51,519

S326

S2.821

S2.821

S760

Due Date

2004-JUL-05

2004-JUL-05

2004-JUL-05

2004-JUN-01

2004-SEP-10

2004-SEP-10

2004-NOV-01

2004-NOV-01

2004-NOV-01

2005-FEB-23

2004-JUN-12

2004-JUN-12

2004-SEP-27

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-FEB-15

2005-MAR-07

2005-MAR-07

2005-MAR-07

2005-MAR-07

2005-MAR-07

2005-MAR-07

2005-MAR-19

2005-MAR-19

2005-MAR-19

2005-MAR-19

2004-Mar-15 12:59 armstrongjj Page 1 of 2

Page 23: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

ONTMIO MINISTRY OF NORTHERN DEVELOPMENT AND MINES

Work Report Summary

Transaction No:

Recording Date:

Approval Date:

W0450. 00353

2004-MAR-03

2004-MAR-05

Status: APPROVED

Work Done from : 2002-OCT- 1 2

to: 2002-OCT-23

Work Report Details:

Claim#

SSM 1246637

External Credits:

Reserve:

Perform Perform Approve Applied

51,302 31,302 53,200

S76.068 576,068 555,200

SO

520,868 Reserve of Work

520,868 Total Remaining

Applied Assign Reserve Approve Assign Approve Reserve Approve Due Date

53,200 50 0 51,302 51,302 2005-MAR-19

555,200 555,200 555,200 520,868 520,868

Report*: W0450.00353

Status of claim is based on information currently on record.

2004-Mar-15 12:59 armstrong-d Page 2 of 2

Page 24: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Ministry ofNorthern Developmentand Mines

Date: 2004-MAR-08

Ministere du Developpement du Nord et des Mines Ontario

GEOSCIENCE ASSESSMENT OFFICE 933 RAMSEY LAKE ROAD, 6th FLOOR SUDBURY, ONTARIO P3E 6B5

RESSOURCES FREEWEST CANADA INC. FREEWEST RESOURCES CANADA INC. 615 BOULEVARD RENE LEVESQUE SUITE 1200 MONTREAL, QUEBEC H3B1P5 CANADA

Dear Sir or Madam

Tel: (888) 415-9845 Fax:(877)670-1555

Submission Number: 2.27285 Transaction Number(s): W0450.00353

Subject: Approval of Assessment Work

We have approved your Assessment Work Submission with the above noted Transaction Number(s). The attached Work Report Summary indicates the results of the approval.

At the discretion of the Ministry, the assessment work performed on the mining lands noted in this work report may be subject to inspection and/or investigation at any time.

If you have any question regarding this correspondence, please contact STEVEN BENETEAU by email at [email protected] or by phone at (705) 670-5855.

Yours Sincerely,

for Ron C. GashinskiSenior Manager, Mining Lands Section

Gc: Resident Geologist

Teck Cominco Limited (Agent)

Ressources Freewest Canada Inc., Freewest Resources Canada Inc. (Assessment Office)

Assessment File Library

Ressources Freewest Canada Inc., Freewest Resources Canada Inc. (Claim Holder)

Visit our website at http://www.gov.on.ca/MNDM/LANDS/mlsmnpge.htm Page: 1 Correspondence 10:19210

Page 25: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

42C16SW2002 2.27285 LIZAR 200

ONTARIOCANADA

MINISTRY OF NORTHERN DEVELOPMENT AND MINES

PROVINCIAL MNINO RECORDERS OFFICE

Mining Land Tenure Map

uesoooe

6*00006

UTM Zorra 16 9000m grid

Those wishing lo stake mining claims should consult with the Provincial Mining Recorders' Office of the Ministry of Northern Development and Mine* tor additional General Information and LimitationsInformation on the status of the lands shown hareon. This map Is not Intended for navigational, survey, or land title determination purposes as the Information Contact Information:shown on this map l* compiled from various sources. Completeness and accuracy are not guaranteed. Additional information may also be obtained through the Provincial Mining Recorders' Officelocal Land Titles or Registry Office, or the Ministry o1 Natural Resources, ~ ~ ~ ~

This map may not snow unregistered land tenure and interests inToll Free Map Datum: NAD 83 'and Including certain patents, leases, easements, right of ways, Tel: 1 (888) 415-9846 ext S/ffcjaction; UTM (8 degree) flooding rights, licences, or other terms of disposition of right* and

Willet Green Miller Centre 633 Ramsay Lake Road Fax; 1 (877) 670-1444 Topographic Data Source; Land Information Ontario Interest from the Crown. Also certain land tenure and land uses Sudbury ON P3E 6B5 Mining Land Tenure Source: Provincial Mining Recorders' Office that restrict Of prohibit free entry to stake mining dalm* may not be

The information shown is derived from digital data available In the Provincial Mining Recorders' Office at the time of downloading from the Ministry of Northern Home Page: www.mndm.gov.on.ca/MNDM/MINes/LANPS/mlsmnpge.hlm illustrated. Development and Mines web site.

Date l Time of Issue: Mon Mar 29 15:17:21 EST 2004

TOWNSHIP 7 AREA PLAN LIZAR G-2328

ADMINISTRATIVE DISTRICTS l DIVISIONS

Mining DivisionLend Titles/Registry DivisionMinistry of Natural Resources District

Sault Ste. MarieALGOMAWAWA

TOPOGRAPHIC

f ; Administrative Boundary

l Township

: Concussion lot

l ' j Provincial Park

OK. indian Raservs

:"": Cliff, Pil S Plto

B

4

Contour

MlneSnalti

Railway

Read

Trail

Natural Gas Pipeline

UMt.es

Tower

Land Tenure

Freehold Patent

nn Surface And Mining Rights

rjn Surface Rights Only

rjl Mining Wghre Only

leasehold Patent

:~~ Surface And Mining RightsLS.Jrgl Surface Rights Only

rjj"! Mining Rights Only

Ucenoe of Occupation

ffi Uses Not SpecifiedIJU

Surface And Mining Rights

Surface Rights Only

Mining Rights Only

lil H l*

14MS67.

1234567

land Use Permit

Order In Council (Not open lor staking)

Water Power Lease Agreoment

Mining Claim

Fled Only Mining Claims

LAND TENURE WITHDRAWALS

\'\\ 1934; AriMfi Withdrawn fmrr, Otnpniiltinn

Mining AM wnhdrKiral Type* Wtm Surkn And Mining RienisWilMniwn WB SartoRlgMiQmy Withdrawn Wm MnimjWBhUOm, WHhar n

Order In Council Withdrawal Types W"im SurtonAndMnlrigRigMilMtMniwn W" l Suites RlgtlK Only Withdrawn W'm MMngRlghuOwyWIiMnwn

IMPORTANT NOTICES

tcsto 1:4tege.

LAND TENURE WITHDRAWAL DESCRIPTIONSIdentifier Type Date Description

2702 Wsm Jan 1. 2001 400 FEET SURFACE RIGHTS RESERVATION ALONG THE SHORESALL LAKES AND RIVERS

Page 26: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

42C16SW2002 2.27285 LIZAR 210

ONTARIOCANADA

HiNWTRY OF NORTHERNDEVELOPMENT AND MINES

mOVINCIAL WNINO RECORDER-* OFFICE

Mining Land Tenure Map

9700006 6750006 eeooooE

S410000N

WOSOOON

L' " "

- 5410000N

M09000N

J9700006 trscooE MOOOOE

UTMZOHS16 9000m grid

Those wishing to stake mining claims should consult with the Provincial Mining Recorders' Office of the Ministry of Northern Development and Mines for additional General Information and Limitations Information on the status of tha lands shown hereon. This map Is not Intended for navigational, survey, or land title determination purposes as the information Contact Information; shown on this map le complied from various sources. Completeness and accuracy are not gueranteed. Additional information may also be obtained through the Provincial Mining Recorders' Office local Land Titles or Registry Office, or the Ministry of Natural Resources.

The information shown la derived from digital data available in the Provincial Mining Recorders' Office at the time of downloading from the Ministry of Northern Development and Mines web site.

This map may not show unregistered land tenure and Interests InToll Free Map Datum: NAD 83 land Including certain patents, leases, easements, right of ways, Tel: 1 (888) 415-9645 ext 57Wbjeotion: UTM (6 degree) flooding rights, licences, or other forms of disposition of rights and

Willet Green Miller Centre 633 Ramaey Late Road Fax; 1 (S77) 870-1444 Topographic Data Source: Land Information Ontario Interest from the Crown. Also certain lend tenure and land uses Sudbury ON P3E 6B5 Mining Land Tenure Source: Provincial Mining Recorders' Office that^restrtct or prohibit free entry to stake mining dalm* may not be Mom* Page: www.mndm.Bou.on.ca/MNDM/MINES/LANDS/mlsmnpge.hlm " jIllustrated.

Date l Time of Issue: Mon Mar 29 15:09:13 EST 2004

TOWNSHIP l AREA PLAN NAMEIGOS 6-2283

ADMINISTRATIVE DISTRICTS l DIVISIONS

Mining Division Sault Ste. MarieLand Titles/Registry Division ALGOMAMinistry of Natural Resources District WAWA

TOPOGRAPHIC

| AdmMctralM Boundwlm

i i Township

r : Concession, tot

RJoJ Provincial ParV

BJ: indian Rstsnre

:""j Cliff, Pil S RKl

,,__mnll Contour

Mlno Shaft.

Railway

Rood

Trail

Natural Gas Pipeline

UWiBS

Tower

B

4

Land Tenure

FrraKoM Patenl

njl Surface And Mirtno RiDMs

fj^j Surface Rights Only

f" J'j MNng Rights Only

leasehold Patent

rf} Surface And Mining Rights

ffi Surface Rights Only

f'g" 'l Mining Rlghls Only

Licence of Occupation

m Surface And Mining Righto

Surface Rights Only

Mining Rights Only

Lend Use Permit

Order In Council (Not open for staking)

Water Power Lease Agreement

Mining Claim

Filed Only Mining Clilms123*587

LAND TENURE WITHDRAWALS

Anwtft Withdrawn fmm Di.tpnnitinn

Mining Actt Wmdriwal TypesWsm Ws

W"sm W" l W' m

Mining FUgtib Only Wllhdrawn Order In Council Withdrawi! Typei

IMPORTANT NOTICES

Page 27: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Anomaly Peak Response Symbols

ANOMALY

^•^

^ ^

^

C1A

I 2:n#3-4

S B Channel?

7-8

9.M

II .12

^!:WS,^

T^eof xurcenolcbxr/̂

Teck Cominep Limitedp.p.aoxaa

,B.C.V2C5N4

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

Flight Line* A EM Anomall**

SCALE: 1:SOOO

DATE: Jan. 23, 2004

DATA BY: T.

DRAWN BY: S.A.

NTS No: 420/9,10,15,16

DWG:

42C16SW2002 2.27285 LIZAR 220

Page 28: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Teck Com mco LimitedP.O. Box 938, Station Main, Kam!oops,:B.C. V2C5N4EM Anomaly Peak Response Symbols

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

^5 1 8QQIntorp rated as— c \ ,, . ,,,postble surficial f X x,- ral,l,^"l1ei ,

conlrfetion f ^^ ̂

interpreted as possible cultural contribution

Flight Lines A EM Anomalies

DATA BY: T. Campbell NTS No: 420/9,10,15,16

42C16SW2002 2.27285 LIZAR 230

Page 29: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

o oK) 00

T1805

Teck Cominco LimitedP.O. Box 938, Station Main, Kamloops, S,C, V2C 5N4EM Anomaly Peak Response Symbols

Ajparent Conductance ..-•'Tgemens') LIZAR PROJECT

SAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

V.j 1800

fiterp reteda possble surficial f contribution f

Interpreted as possible crural contribution

5 B Channs

7 - 8 Channels

9-13 Channels

11-12 Channels

Flight Lines A EM AnomaliesCulturs Rss pans a

Anomsly tetter

42C16SW2002 2.27285 LIZAR 240

Page 30: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

1BRKKENRIDGE

NAMEIGOS MOSAMBIK

O O

T1802

00 CD

Teck Cominco LimitedP.O. Box 93S, Station Main, Kamloops, B.C. V2C 5N4EM Anomaly Peak Response Symbols

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

Flight Lines fc EM Anomalies

42C16SW2002 2.27285 LIZAR 250

Page 31: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

5404000 mN

400

Teck Com in co LimP.O. Box 938, Station Main, Kamloops, B.C, V2C5N4EM Anomaly Peak Response Symbols

Apparent Conducting* fsietrens)

•"^

SMSOO.interpreted as--^ c ^

a 9ossble surficial /" x X-rail Channe X Amplitude (ppm)

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY5 - 6 Lh

7 - 8 Channels

9 -10 Channels

11 -12 Channels

Flight Lines S EM AnomaliesCulture Response

42C16SW2002 2.27285 LIZAR 260

Page 32: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Teck Cominco LimitedP.O. Box 938, Station Main, Kamioops, B.C. V2C 5N4

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

TOTAL FIELD

42C16SW2002 2.27285 LIZAR 270

Page 33: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

s

i ? ia8 CO

JM

0r

m

- . w.

x—— -"""""^""

^

(S**

"*^ra

SSKf ffi SifisJS"

|.'"" "

^v

C

i™v

Limited

Cominco

~n*~

i.y

^

iz

ss

^

1

3

iit

.s(d M"fi

1.8*6Smx 0"o 8~OD Q

bfCL ^

^1Li|

ai'

31

Qa -Z :

i

HZOc"

IJECTing Divisio

SiK . OL ^Qj •ef

Nl ^3™

—i

I

M

" |pii"Lg-ZL-

la**

tf)

O

111z os111z ae,o m ae,i

, _

; L:]:

••"••" '-v. .l--."'"

,, r :;~T

8-^4:S {fl i|l —— j.

,. - "-' '., . -

V

t/)

sVo

oJ! Ul1LJ!^f

o

siis

If^il l n|ifi "i/?

" T 1 — Ti l "W ;~vHW-

..i....

jBU.

Ur-

U

c

Sr

C2

S

1

LH

c

t

r

gii *b

n

{r̂J •llr

i i

iL

1

3 C;

>

?•f

lt

m

i

^

H

I

ii

vi

DRAWN BY:

1

m

1Q

if'^- ,^S -';-

4..

S5 -1A-- -,'

1 '

o00

Page 34: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

Teck Cominco LimitedP.O. Box 938i Station Main, Kamloops, B.C. V2C 5N4

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

TOTAL FIELDScLth'westiSfieefV Ili

42C16SW2002 2.27285 LIZAR 290

Page 35: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

BRECKENRIDGE

MOSAMBIKNAMEIGOS-

Teck Cominco LimitedP.O. Box 938, Station Main, Kamloops, B.C.V2C5N4

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

TOTAL FIELD

42C16SW2002 2.27285 LIZAR 300

Page 36: RPT ON AIRBORNE GEOPHYS SURV LIZAR PROJ

54Q7pOOi)nN

;

Mf O* 3

Teck Cominco LimitedP.O. Box 938, Station Main, Katnloops, B.C. V2C5N4

LIZAR PROJECTSAULT STE. MARIE, Mining Division, ONT.

AIRBORNE MAGNETIC SURVEY

TOTAL FIELD

42C16SW2002 2.27285 LIZAR 310