structural interp rpt

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1 USE OF LANDSAT DATA for STRUCTURAL INTERPRETATION and BASE MAP FOR GEOPHYSICAL DATA B.W.Downing, P.Geo July, 2008 BEARDMORE PRO .. IECT Geraldton Area, Ontario NTS 043E12, 13 For ProAm Resources Corp. 867 West 3 rd Street North Vancouver, B.C. V7P 1E2 0 W > - W 0 W a: f- 2 l.U cc:> :;:;:; C) U) CJ U) C'-...J l.LJ U) L.I...I ( .') c..) «- <- w- LU u.. uO -..1 2 ::J LU u 01 (f ) 0 l.U CD 1

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Page 1: STRUCTURAL INTERP RPT

1

USE OF LANDSAT DATA

for

STRUCTURAL INTERPRETATION

and

BASE MAP FOR GEOPHYSICAL DATA

B.W.Downing, P.Geo

July, 2008

BEARDMORE PRO .. IECT

Geraldton Area, Ontario NTS 043E12, 13

For

ProAm Resources Corp. 867 West 3rd Street

North Vancouver, B.C. V7P 1E2

0 W > -W 0 W a:

f-2 l.U

cc:> :;:;:; C) U)

CJ U)

C'-...J l.LJ U) L.I...I

~ ( .') c..)

«-<- w-

LU u.. uO

-..1 2 ::J LU

~ u

01 (f)

0 l.U CD

1

Page 2: STRUCTURAL INTERP RPT

TABLE OF CONTENTS

page

1. INTRODUCTION 4

2. SURVEY AREA 4

3. LANDSAT DATA 4

4. METHOD 5

5. ANALYSIS 6

6. RECOMMENDATIONS 7

7. REFERENCES 7

8. STATEMENT OF QUALIFICATIONS 8

LIST OF FIGURES

Figure 1. Claim Map

LIST OF MAPS

Landsat & ETM + 15m Bands 321, 1: 125,000 scale

Landsat & ETM + 15m Bands 321, 1 :50,000 scale

Total Magnetic Intensity (TMI) overlain plotted on Landsat & ETM + 15m Bands 321 Map, 1 :40,000 scale

First Vertical Derivative of TMI overlain plotted on Landsat & ETM + 15m Bands 321 Map, 1 :40,000 scale

AeroTEM ZO Off-time with line contours and EM anomaly, Major mineral prospects and mines and Structural Linears plotted on Landsat & ETM + 15m Bands 543Map,

1 :40,000 scale

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LIST OF JPEG FILES (see attached CD)

Landsat & ETM + 15m Bands 321 , 1 :125,000 scale

Landsat & ETM + 15m Bands 321, 1 :50,000 scale

Total Magnetic Intensity (TMI) overlain plotted on Landsat & ETM + 15m Bands 321 Map, 1 :40,000 scale

First Vertical Derivative of TMI overlain plotted on Landsat & ETM + 15m Bands 321 Map, 1 :40,000 scale

AeroTEM ZO Off-time with line contours and EM anomaly, Major mineral prospects and mines and Structural Linears plotted on Landsat & ETM + 15m Bands 543Map,

1 :40,000 scale

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1. INTRODUCTION

This report describes how Landsat data was used for the purpose of plotting geophysical data files that were obtained from the AeroTEM System Electromagnetic and Magnetic Survey carried out by Aeroquest (May, 2008) and for structural interpretation on a regional and property scale.

Since the claim area is approximately 50 to 65% covered by overburden, imagery is a necessary method for geological and structural interpretation.

2. SURVEY AREA

The project area as covered by claims shown in Figure 1 is located in Northern Ontario approximately 185 km northeast of Thunder Bay and 60 km west of Geraldton (NTS 043E12, 13). The project area is also referred to as Block 1 in the Aeroquest report. The survey area encompasses the project area as well surrounding area that is incorporated in the Landsat structural analysis.

3. LANDSAT DATA

Satellite data acquisition and processing was contracted out to Pacific Geomatics Ltd., Surrey, B.C.

Two Landsat-7 satellite images, both covering the same area (path 24 row 25) were purchased for the work. A cloud-free scene acquired 01 October 2000 was selected for detailed geological analysis. A second scene containing more up-to-date 2006 land conditions was purchased for mapping recent roads, infrastructure, and land cover changes. There was a partial failure of the Landsat-7 satellite in spring-2003 which caused narrow strips across the image to be lost. These missing strips can be filled in with imagery from different dates. The second scene was produced from 3 dates; a primary scene collected 02 October 2006, and missing lines replaced with data from 31 August 2006 and 23 August 2006.

Each scene was orthorectified to planimetric accuracy of approximately 15m (1 pixel) RMS. The 30m multispectral data were pan-sharpened with the 15m PAN band to generate 15m multispectral composites. A Natural colour composite was produced for each scene. For the October 2000 image, various band combination colour composites were produced for background map layout and for structural interpretation. B321 is a natural colour composite, B742 and B543 are false colour infrared colour composites for structural interpretations. The TM data were corrected for atmospheric haze, and an

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Page 5: STRUCTURAL INTERP RPT

• edge enhancement filter was applied in order to sharpen the pixel edges for improved definition.

4. METHOD

A technique used by the author over several years in mineral exploration involves structural interpretations using the above Thematic Mapper (TM) data. This project was done in conjunction with computer and software systems at Pacific Geomatics. Linear lines were drawn (in red) on the flat screen monitor using the cursor and saved as bitmaps which were then plotted on the 543 composite map.

The TM band combinations used for interpretation are 5-4-3 and 7-4-2. The TM band combinations 3-2-1 were used as the base map for plotting the geophysical data for the project area.

Interpretations can best be made with these various plotted band maps in conjunction with the same bands visible on the monitor. This allows the user to pick out features not necessarily seen on the plotted map by using the software routines (eg. root, linears, infreq) as well as screen contrasts. Structural features observed on these plotted maps are also interpreted by viewing the plotted maps from different angles and with different light reflection. The author is not familiar with the geology of the project area and has drawn in features that may be readily explained by geoscientists familiar with the area. Known mineral deposits/showings are plotted as they are valuable in determining any

• possible mineralized structural trends/patterns and associations.

Linear topographic features are indicated by lakes, streams and creeks which infer that they reflect surface expressions of faults, shears, folds and lithologic contacts that have been enhanced by glacial and surface erosion. Some structures are quite prominent, while others are subtle and/or discontinuous to intermittent. The rivers and creeks generally follow or are enhanced by some dominant underlying structure which may reflect the basement lithologies.

Chcmge in pixel colour, alignment of pixels, outlines of surfical features such as lakes, rivers and creeks can also be used and interpreted as reflection of some subsurface feature(s). Unfortunately a large part of the project area is covered by muskeg which does not reflect any underlying structural I geological features and thus any interpretation using TM data is not readily apparent.

.. 'PEG files were compiled of total magnetic intensity (TMI) and first derivative magnetic of the TMI overlain onto the 8321 composites. A JPEG file was also compiled of the AeroTEM ZO Off-time with line contours and EM anomaly, Major prospects and mines and Structural Linears overlain on the 8543 composite. These .. 'PEG files (scale 1 :40,00) were written onto a CD. The 8321 composite was written on the CD as both 1:125,000 and 1:50,000 scale maps .

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5. ANALYSIS

The interpretation and accumulation of large and small-scale structural data is necessary in not only understanding the geological history but also in interpreting and exploring for mineralization that maybe associated with such structures. The geological and structural deformation for the project area should be interpreted within the overall regional context, however for this report only the structural data within the project area is discussed but that structural data for the surrounding area is included and shown on the accompanying map. There are probably several episodes of structural deformation due to differing time periods associated with intrusions, major regional dislocations and the like.

The two dominant regional diabase dykes as noted in the literature and interpreted from the magnetic data probably intruded along some pre-existing structural/lithologic feature. There is no apparent visual linear associated with these dykes from the TM data.

Folds Interpretation is based on any curvilinear feature such as lakes and rivers/creeks that may be a result of large scale fold structures. Some of the features may also be resulting from re-folded folds.

Some folds have been reported in the literature, however for the most part, the interpreted folds have not been reported in any literature that the author has viewed (i.e . assessment reports).

Linears Interpretation is based on any linear feature such as lakes and rivers/creeks. The linears were also checked with those reported in the literature. The structural features as shown on the geology map by Kresz et al. are quite evident on the TM maps.

There is a distinct east - west trending linear that transects the property which is sub­parallel to the Namewaminikan River, both of which are sub-parallel to the major east­west Paint Lake Fault (Kresz et al.) to the south (not shown on the accompanying map).

There are several dominant northeast trending linears throughout the project area, and a few northwest trending linears in the southern portion of the project area as indicated along the Namewaminikan River.

Mineral Prospects The project area contains numerous reported gold showings (Augmitto South) and two former producing gold properties (Crooked Green Creek Mine and Maloney Sturgen Prospect), albeit very limited production (Hart et al.).

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It appears that the Augmitto South prospects occur along a northeast trending linear, the Crooked Green Creek Mine is associated with a fold system and that the Maloney Sturgen prospect and Augmitto South prospect occur on the dominant east - west linear.

Some of the AeroTEM geophysical anomalies are associated with some of the interpreted structures and known mineral prospects.

6. RECOMMENDATIONS

All data and maps should be incorporated into a geographic information system for map making and to provide a corporate database.

Prospecting should be carried out along the linear and fold structures that are associated with known mineral prospects.

7. REFERENCES

Aeroquest, REPORT on a HELICOPTER-BORNE AeroTEM SYSTEM ELECTROMAGNETIC & MAGNETIC SURVEY, May, 2008, unpublished report for ProAm Explorations Corp., Vancouver.

Hart, T.R., Smyk, M., Fralick, P., 2005. GEOLOGY AND FOLD MINERALISATION OF THE BEARDMORE-GERALDTON GREENSTONE BELT. In; Hollings, P. (Ed.), Institute on Lake Superior Geology Proceedings, 51st Annual Meeting, Nipigon, Ontario, Part 2-Field trip guidebook, v.51, part 2, 3-40.

Kresz, D. and Zayachivsky, B. 1989. GEOLOGY OF BARBARA, MEADER AND PIFHER TOWNSHIPS, District of Thunder Bay; Ontario Geological Survey, Report 270, 91p.

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8. STATEMENT OF QUALIFICATIONS

I, Bruce W. Downing, do hereby certify that:

1. I am a graduate of Queen's University with an honours B.Sc. in geology and pedology received in 1970, and a graduate from the University of Toronto with a M.Sc. in geology received in 1974.

2. I am a member in good standing of the Association of Professional Engineers and Geoscientists of British Columbia.

3. I am a Fellow of the Geological Association of Canada in good standing, a member of the Association of Exploration Geochemists and a member of the Canadian Institute of Mining .

Bruce W. Downing, M.Sc., P.Geo. 1049 Habgood Street White Rock, B.C., V4B 4W7

July, 2008

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Page 9: STRUCTURAL INTERP RPT

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ProAm Explorations Inc. Geraldton Project, NWO o 1

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Aerotem ZO Off-Time

Scale 1 :40,000 4

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i Kilometers

Landsat 7ETM+

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ZOFF (nTis)

D 0- 3.45

_ 3.46- 6.9

_ 48.29 - 51.72

_ 5173-5517

_ 6.91 - 10.34 _ 5518 - 58.62

_ 10.35-13.79 _ 58.63-62.07

_ 13.8-17.24 _ 62 00 -6552

_ 17.25-20.69 _ 65.53-68.97

D 20.7 - 24 14 D 68.93 - 72.41

_ 24 15 - 27.59 D 72.42 - 75.ffi

_ 27.6-31.03 D 75.87-79.31

_ 31.04 - 34.48 D 79.32 - 82.76

_ 34.49-37.93 D 82.77-89.66

D 37.84-41.38 D 5'3.67-931

D 41 .:0'3-44.83 D 9311-96.55

_ 44.84-48.28 D % .56-135.39

-- Fa LJt Lines

mines

UTM ZONE 16 NAD83

15m Bands 543 01-0ctober-2000

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I

ProAm Explorations Inc. Geraldton Project, NWO

o

Total Magnetic Intensity

Scale 1 :40,000 12468

iiiiiiii I ...... iiiiiiii ~I ........................ Iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii ~I .................. """"'ll Kilometers

Landsat 7ETM+ 15m Bands 321 01-0ctober-2000

I

ONTARIO

lMI(nT)

Block 1 57,5(9- 57,551

D 57,639- 57,767 _ 57,5(7- 57,5(8

_ 57,62(- 57,638 D 57,5(5- 57,5 (6

_ 57,616- 57,623 D 57,50- 57,5(4

_ 57,602- 57,615 _ 57,5 (0 - 57,5 (1

_ 57,59(- 57,601 _ 57,538- 57,539

_ 57,588- 57,593 D 57,536- 57,537

_ 57,582- 57,587 D 57,53(- 57,535

_ 57,578- 57,581 _ 57,531- 57,533

_ 57,574- 57,577 _ 57,527- 57,530

D 57,570- 57,573 57,524- 57,526

D 57,567- 57,569 C 57,519- 57,523

D 57,563- 57,566 _ 57,513- 57,518

1:::1 57 ,558- 57,562 _ 57,505- 57,512

D 57,555- 57,557 _ 57,483- 57,504

D 57,552- 57,554 -- Cont ru rs

UTM ZONE 16 NAD83

Page 12: STRUCTURAL INTERP RPT

ProAm Explorations Inc. Geraldton Project, NWO

1 : 50 000 Scale

Kilometres ~[.==:'=:r::2==.;3~==4==!5::::::6~4r~7 Miles 1 0 1 2 :r ~--~

Landsat 7 ETM+ 15m Bands 321 01-0ctober-2000

Page 13: STRUCTURAL INTERP RPT

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Landsat 7ETM+ 15m - Bands 321- 01 Oct 2000

Scale 1:125,000 o 2.5 5 10 15 20 ~~IIIIIIIIIIIIIIIIIII I ................ "'li Kilometers

ProAm Explorations Inc. Geraldton Project, NWO

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ProAm Explorations Inc. Geraldton Project, NWO o 1

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First Vertical Derivative of TMI

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