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31C11SW2002 2.20360 MADOC
GEOTECHNICAL REPORT010
GEOPHYSICAL AND GEOLOGICAL SURVEYSMining Claim No. 1077464
East Half Lot 5, Concession 6 Madoc Township, Hastings County, Ontario
prepared by
Lloyd G. D. Thompson, B.A.Se., M.Se., Ph.D., P.Eng.
Completed for OPAP Grant No. OPG 99-136 - January 15, 20000 Reformatted for claim assessment work - April 15, 2000
Qualified Person and Supervisor of Surveys: Dr. Lloyd G. D. Thompson, P.Eng, Geophysicist (Retired)
Claim Owner: Surface Rights -
Mineral rights -
Dr. James L. Walsh23 North Street, Perth, Ontario
Dr. Lloyd G. D. ThompsonRR 3, Tweed, Ontario KOK 3JO
2-2036 O
31C11SW2002 2.20360
TABLE OF CONTENTS
MADOC 010C
PageI. SUMMARY lII. INTRODUCTION 2
A. General 2B. Project Location 2C. Access 2D. Geology 2
III. GRID SURVEY 3IV. GEOLOGICAL MAPPING AND SAMPLING 4
A. Work Done 4B. Results 4
V. ELEVATION SURVEY 5A. Purpose 5B. Instrumentation 5C. Work Done 5D. Results 6
VI. MAGNETOMETER SURVEYS 6A. Purpose 6B. Instrumentation 6C. Magnetic Surveying Work Done 6D. Magnetic Profiling Results 7
VII. GRAVITY METER SURVEYING 8A. Purpose 8B. Instrumentation 8C. Gravity Surveying Work Done 9D. Gravity Profiling Results 10
VIII. SURFACE SAMPLE ANALYSIS 11A. Work Done 11B. Analysis Results 11
I.. FINAL RESULTS AND CONCLUSIONS 11.. FINAL RECOMMENDATIONS 12.I. REFERENCES 13.II. APPENDIX A - Qualifications of Dr. L. Thompson 14.III. APPENDIX B - Value of Assessment Work Done 16
LIST OF ILLUSTRATIONS AND TABLES
Figure 1.
Figure 2. Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17 .
Figure 18.
Figure 19.
Follows PageKey Topographic Map Showing Location of Project Area 2 Location of Project Area on Madoc Claim Map 2 Claim Map Showing Location of Project Grid Area, Traverse Lines, Survey Stations and Topographic Features 2 Detailed Map of Survey Grid Area Showing Grid and Traverse Lines, Line Cutting Survey Stations, Rock Sample Locations, Auger Holes and Topographic Features 2 Geological Map of Survey Grid Area with Topographic Features 4 Elevation Contour Map with Some Topographic Features 6 Reconnaissance Magnetic Anomaly Profiles for Traverse Lines 50, 250 and 450 Looking North 7 Reconnaissance Magnetic Anomaly Profiles for Traverse Lines 650, 850, 1050 and 1250 Looking North 7 Computer Shaded Contour Map of Reconnaissance Magnetic Anomaly Data (North Lot Line is to Left on the Sheet) 7 Hand-drawn Contour Map of Reconnaissance Magnetic Anomaly Data 7 Detailed Magnetic Anomaly Profile for Traverse Line 50 with Elevation Profile and Surface Geology Looking North 7 Detailed Magnetic Anomaly Profile for Traverse Line 250 with Elevation Profile and Surface Geology Looking North 7 Detailed Magnetic Anomaly Profile for Traverse Line 450 with Elevation Profile and Surface Geology Looking North 7 Detailed Magnetic Anomaly Profile for Traverse Line 650 with Elevation Profile and Surface Geology Looking North 7 Detailed Magnetic Anomaly Profile for Traverse Line 850 with Elevation Profile and Surface Geology Looking North 7 Detailed Magnetic Anomaly Profile for Traverse Line 1050 with Elevation Profile and Surface Geology Looking North 7 Detailed Magnetic Anomaly Profile for Traverse Line 1250 with Elevation Profile and Surface Geology Looking North 7 Detailed Magnetic Anomaly Profile for Traverse Line 1600 Looking East 7 Bouguer Gravity Anomaly Profiles for Traverse Lines 50 and 250 with Peak Magnetic Anomaly Locations and Surface Geology Looking North 10
(continued)
Figure 20. Bouguer Gravity Anomaly Profile for Traverse Line 450 with Peak Magnetic Anomaly Locations and Surface Geology Looking North 10
Figure 21. Bouguer Gravity Anomaly Profile for Traverse Line 650 with Peak Magnetic Anomaly Locations and Surface Geology Looking North 10
Figure 22. Bouguer Gravity Anomaly Profile for Traverse Line 850 with Peak Magnetic Anomaly Locations and Surface Geology Looking North 10
Figure 23. Bouguer Gravity Anomaly Profiles for Traverse Lines 1050 and 1250 with Peak Magnetic Anomaly Locations and Surface Geology Looking North 10
Table 1. Reconnaissance Magnetometer Survey Readings 7Table 2. Detailed Magnetometer Survey Readings 7Table 3. Gravity Meter Observations 9Table 4. Gravity Survey Data Reduction 10Table 5. Surface Sample Density Analysis Results 11
GEOTECHNICAL REPORT
GEOPHYSICAL AND GEOLOGICAL SURVEYSMining Claim No. 1077464
East Half Lot 5, Concession 6 Madoc Township. Hastings County, Ontario
by
Dr. Lloyd G. D. Thompson, P.Eng.
APRIL 15, 2000
I. SUMMARY
Exploration work done on the subject claim from May 14, 1999 to January 21, 2000 included:
1. A survey grid 800 ft X 1200 ft with 100 ft E-W spacing and 200 ft N-S spacing established relative to the claim and township property boundary lines and Lot and Concession lines. This grid required 8950 ft (2.73 km or 1.69 mi) of line cutting and the placing of 70 pickets.
2. A preliminary geological survey of the grid area.
3. A first order elevation survey of 60 stations in the grid area covering a distance of 5200 ft (1.59 km or 0.98 mi).
4. A reconnaissance magnetic survey with stations at 100 ft intervals along 7 traverse lines across the grid area. This covered a distance of 5200 ft (1.59 km or 0.98 mi) with 59 stations.
5. A detailed magnetic survey with stations at 50 ft intervals along 7 traverse lines across the grid area. This covered a distance of 6250 ft (1.91 km or 1.18 mi) with 132 stations.
6. A gravity survey with stations at 100 ft intervals along7 traverse lines across the grid area. This covered a distanceof 5200 ft (1.59 km or 0.98 mi) with 59 stations.
7. Identification and density analysis of 37 rock samples taken as part of the geological survey.
8. Data processing and report preparation.
II. INTRODUCTION
A. GENERAL
The objective was to perform geophysical surveys over as much as possible of the central area of the property that contains a "granite" ridge in contact with carbonate rock which could host a new hematite deposit. Magnetic and gravity surveys were included as well as geological and topographical mapping and sample analysis.
This work project was labour intensive especially on the part of the claim holder since the work was geophysical and geological surveying. He had to do much of the line cutting as well as doing the professional surveying. The line cutting was particularly difficult since the hedge rows and bush areas had accumulated over 100 years of growth and piled up dead trees and brush. Even in the open fields, which had been planted with pine trees, the weeds were as high as a man and had to be cut with a gas brush cutter. The grid lines had to be cleared about 5 ft wide to allow passage of the gravity meter in its bulky and heavy carrying frame. In some instances, it took 2 persons a half day to cut through a 40 ft wide hedge row. In other instances of heavy forest/bush, only about 200 ft could be cleared in one day.
B. PROJECT LOCATION
The key location of the project area is shown in Figure l which is a portion of NTS map sheet 31C/11 West, Kaladar. The area is at Latitude 44 deg. 31 min. 40.6 sec. North and Longitude 77 deg. 28 min. 36.4 sec. West. The project exploration area is within the East Half of Lot 5, Concession 6, Madoc Township, Hastings County, Ontario as shown in Figure 2 which is part of the Madoc Township claim map. The Half Lot is held as mining claim No. 1077464 by the author. The location of the project survey grid with relation to the lot and claim boundaries with the traverse lines, survey stations, access road and other topo graphic features is shown in Figure 3. A detailed map of the survey grid area showing the grid and traverse lines, line cutting, survey stations, rock sample and auger hole locations and topographic features is shown in Figure 4.
C. ACCESS
From Madoc on Highway 7, take Highway 62 north about 1.2 mi. (2 km.) to Riggs Road. Turn right and go about O.6 mi. (l km.) to an entrance to the property.
D. GEOLOGY
The project claim area has not been geologically mapped in any detail. ODM map 2154 shows a small granite outcrop with an inferred narrow band of granite with nearly vertical dip trending south on to the East Half of Lot 4. A small hematite pit is shown on the south part of the granite. ODM GR No. 73 reported
302.000m.E. 05 0 4
Surveyed, compiled, drawn and printed by Ihe Army Survey Est., R C.E. 1945 Aerial photography by R C.A.F.. 1946-48Converled from the first edition or Ihe 1:63360 map to 1:50000 by Ihe AS E. 1950.
3/C///IVEST K A LAD A R
Scale 1:50,000 l
loon SOP
looo va ol t-| M i-t l-j i-l
Figure Uo. 2 Location of Project Areaon MaH o c Claim Map
VI VIIMADOC
ntingdon Twp. MA p J999
TOWNS H IP X '/Z LOTS', CowciTSS'ON 6
HO. /O 7 7464 M. R, o.
Figure No. Claim Map Showing Location of Project Grid Area, Traverse Liner;, Survey Stations and Topographic Features
iMo. 4 Detailed Mfip o l Purvey uriu Aroa Showing Grid and Traverse Lines, Line Cutting Survey Stations, Rock Sample Locations, Auger Holes and Topographic Features
GRIPJ-ZGEND
or LOT (FT)
s &M PL eSCALE: l :r-
(TJ 72*
SHAPOYV S?L.G.O.TDEC. '99
this as an open cut which had a narrow band of hematite-bearing carbonate rock in contact with granite on the west side. To the south on the East Half of Lot 4, there is a large area of amphibolite which contained the old St. Charles iron mine which produced hematite ore up to 1899. On the east boundary of the claim Lot, a small outcrop of Shadow Lake limestone is shown on Woods Road. Further south and to the northeast are large areas of Shadow Lake limestone (basal conglomerate). To the west is a large area mapped as marble.
III.
A survey grid of the project area had to be established prior to performing other project work. The area of interest for surveying was a "granite" ridge just west of the centre of the Lot with a north-south trend. It contains an old large pit and numerous small pits and blasted areas. The north-east Lot corner and the north Lot line were the only clear references for measuring purposes. From the northeast Lot corner along the north Lot line, the "granite" ridge is contained between the 1000 ft and 1400 ft marks. The entrance to the property is at 1200 ft. On examination of the property, it was found that lines from the 800 ft mark to the 1600 ft mark would adequately give survey traverse line profiles across the outcrop ridge. The objective was to run a series of traverse lines across the ridge to cover as much of the ridge as possible from the north Lot line in order to locate areas of mineral interest for further detailed investigation. On this basis, a 200 ft interval for the traverse lines was selected which gave a basic 200 ft grid. Survey stations along the traverse lines were to be at 100 ft intervals. The grid was set up with the traverse lines parallel to the north Lot line as shown in Figures 3 and 4. The base grid line was established 50 ft south of the north claim line with stations at 100 ft intervals. The 1200 ft station was taken as the survey base station. The 1200 ft line was established as the main north-south base line with stations every 100 ft so far as possible. Also the stations along the west grid line at 1600 ft were established at 100 ft intervals. The grid was expanded to establish traverse lines at 250 ft, 450 ft, 650 ft, 850, 1050 ft and 1250 ft. from the north Lot line. The 1250 line ran into a steep bluff at the edge of a large pond at 1200 ft and could not be extended further. Since additional lines to the south would also run into the pond, the grid was stopped at the 1250 traverse line. At several locations (see Figure 4) the squaring of the grid was checked with diagonal lines. A total of 70 survey pickets were established to give 59 grid survey stations along the 7 traverse lines. The grid work was done on 22 days on May 14, June 16 and from Aug. 16 to Sept.20, 1999 by the claim holder and l helper. It required 8950 ft (1.7 mi or 2.7 km) of line cutting, chaining and picketing.
IV. GEOLOGICAL MAPPING AND SAMPLING
A. WORK DONE
The geological mapping was just for general reconnaisance mapping and particularly to note the geology along the traverse lines. Some geological mapping and sampling was done during the other field survey work. More specifically the field mapping and sampling were done by the claim holder on 5 separate days on Sept.27, Oct.27 5, 29, Nov. 17, and Dec. 29, 1999. In addition, sample identification was done on 6 days on Aug. 28, Sept l 6 8, Nov. 9 6. 12 and Dec. 4, 1999. Pam Sangster and Chris Papertzian, Resident and District Geologists, MNDM, Tweed inspected the property on Oct. 27,199 to assist in the identification of the geology. Samples of the various rock types and mineralized material (hematite/magnetite) were taken at locations shown on Figure 4. Of the numerous samples taken, density (Specific Gravity) measurements were made on 36 samples which are reported in a later section "Surface Sample Analysis".
B. RESULTS
The most significant geological finding was that the "granite" proved to be actually rhyolite. This was determined by Pam Sangster and Chris Papertzian, MNDM, Tweed. Although the weathered surface of the outcrop ridge did look like granite, samples showed that the rock was very fine grained with a conchoidal-like fracture and varied from light red on the west side to dark red in the central part to black on the east side. This was the same as the known rhyolite belt exposed 1.5 miles (2.4 km) further north on Highway 62. Ms Sangster also suggested the possibility that the rhyolite could be the responsible agent for creating the hematite and magnetite mineralization.
The results of the geological mapping of the survey grid area are shown in Figure 5. This is a preliminary reconnaissance map only and is very general in nature. A significant feature is the presence of an outcrop area of amphibolite in the northwest corner of the grid area that was not previously mapped. Some small pits have been blasted at the contact of the amphibolite and the red rhyolite which produced samples with compact hematite and magnetite. On the east side of the ridge a carbonate band was identified by a series of small pits traced from the old pit and a bluff of exposed carbonate. Dark red rhyolite was on the west side of the carbonate band but black rhyolite was on the east side. Earthy hematite appeared to form at the sides of the carbonate zone with minor magnetite on the west side and much more magnetite in the black rhyolite on the east side. South of the old pit there appears to be a fault or erosional feature where the old trail is located since the high ridge with the old pit ends just past the 1050 traverse line. At the northeast corner of the grid area there is a high knoll with an outcrop of Shadow Lake Sandstone. Also there is an outcrop knoll of Shadow Lake Limestone at the old farm house on the east side of the Lot. It appears that much of the higher ground east of the grid area
Figure No. 5 Geological Map of SurveyGrid Area with Topographic Features
tx^ rea o p 0L u rt-
could contain Shadow Lake over the Precambrian rocks.
As shown in Figure 4, an auger hole was drilled at grid location 100+1600 to check the continued extension and dip of the amphibolite outcrop surface shown in Figure 5. Bedrock was at 3"2" indicating the amphibolite continued at about the same dip. On Line 250 at the 1050 ft mark, an auger hole through relatively flat overburden hit bedrock at 3'5" indicating only a shallow soil cover (see Figure 12). On line 450 at the 1050 ft mark, an auger hole was drilled through overburden near the base of a steep slope of black rhyolite. Bedrock was at only 10" indicating the black rhyolite continued at the same steep slope (see Figure 13). The surface geology along each traverse line is marked on the elevation profile shown in Figures 11 through 17.
V. ELEVATION SURVEY
A. PURPOSE
The elevation survey was done primarily for the gravity survey which requires first, order levelling of the gravity stations to 0.01 ft. for the reduction of gravity data to Bouguer anomalies. It was also to provide a correlation between an elevation horizon on outcrop slopes and mineral bearing zones. Also it was to provide information about the elevation at which Shadow Lake paleozoics overlay the precambrian rocks.
B. INSTRUMENTATION
A T.H.S. Co. Theodolite Model No. 165-40993 provided by the claim holder was used for the survey.
C. WORK DONE
Prior to starting the elevation survey, a Bench Mark elevation was established using a Geodetic Positioning System (GPS). For a Bench Mark station, the Shadow Lake outcrop at 50+1100 was selected. From a series of measurements at the four Lot corners and the Bench Mark outcrop, the B.M. coordintes were averaged at 44 degrees, 31 minutes, 40.6 seconds North and 77 degrees, 28 minutes, 36.4 seconds West. The B.M. elevation was averaged at 669.5 ft but for convenience was taken as 670.0 ft. This work was done on May 14 and Oct. 25,1999 by the author.
The elevation surveying was actually done after the gravity meter survey had been done. This was because the gravity meter stations could not be exactly at the grid survey stations and the elevations had to be at the gravity stations. The elevation survey is considered first in the report because the elevation profiles are used in conjunction with the magnetic anomaly profiles. Elevations were observed at gravity stations at 100 ft intervals along each of the traverse lines. These data were used for an elevation contour map and elevation profiles along the traverse lines as well as for gravity data reduction. This work was done by the claim holder with one helper on 3 days on Oct.
25,26 and 28, 1999. Data processing was done by the claim holder on 3 days on Oct. 30, Nov. l and Nov. 10, 1999. A total of 59 stations were surveyed over a distance of 5200' (0.98 mi or 1.59 km) .
D. RESULTS
The actual elevations are given in the gravity survey reduction Table 4. For plotting and contouring purposes the elevations have been rounded off to the nearest foot. An elevation contour map is shown in Figure 6. Since the traverse lines are 200 ft apart the contouring control is not very good. However, the map does provide some information relating to the topographic features shown in Figure 5. Elevation profiles along the traverse lines are presented in Figures 11 through 17 to provide correlation with the surface geology and magnetic anomalies. At the 650 traverse line in Figure 6, there seems to be a slight shift in the north trending outcrop ridge possibly due to an erosional trough or faulting.
VI. MAGNETOMETER SURVEYS
A. PURPOSE
The purpose of the magnetometer survey was to establish detailed magnetic profiles across the selected traverse lines to help identicate a hematite deposit and also the carbonate zone with which the hematite is associated.
B. INSTRUMENTATION
A Geometics Proton Magnetometer Model 512 wasused for this survey. This instrument measures the total earth's magnetic field to a repeated reading precision of + /- one gamma. However, due to erratic drift and some spurious readings the overall accuracy is about + S- 2 5 gamma.
C. MAGNETIC SURVEYING WORK DONE
Magnetic surveying along the traverse lines was first done at 100 ft intervals. Using these data in a Geometrics computer program, a shaded contour map was drawn. For comparison, a hand- drawn contour map was also prepared. The data were also used for magnetic anomaly profiles along each of the traverse lines. These profiles showed immediately that with 100 ft spacing the exact locations of anomaly peaks could not be determined. Therefore this first survey was termed a reconnaissance survey and a second survey was done with a 50 ft spacing and was termed a detailed survey. This detailed survey repeated all the traverse lines and in addition included the west 1600 line. Magnetic anomaly profiles along each of the traverse lines were drawn. The reconnaissance survey was done by the claim holder and l helper on 2 days on Sept. 13 and 21, 1999 and completed 59 stations plus many repeated base stations. A distance of 5200 ft (0.98 mi or 1.59 km) was surveyed. The detailed survey was done
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on 2 days on Oct. 4 and Nov. 12, 1999 and completed 132 stations plus many repeated base stations. A distance of 6250 ft (1.18 mi or 1.91 km) was surveyed.
D. MAGNETIC PROFILING RESULTS
Data reduction and plotting of the reconnaissance magnetic data were done by the claim holder on 3 days on Sept. 7 S 12 and Oct. 2, 1999. The magnetometer readings taken at 100 ft intervals along the traverse lines are given in Table 1. For plotting purposes the values were rounded to the nearest 10 gamma and a base level of 56000 gamma was subtracted to give magnetic anomaly values. These anomaly values were plotted to give profiles for each traverse line. Figure 7 shows the profiles for lines 50, 250 and 450. Figure 8 shows the profiles for lines 650, 850, 1050 and 1250. It is noted immediately that some anomalies are surprisingly high at 5000 to 7000 gammas but that the location of the peaks of the anomalies cannot be exactly determined with so few data points. Thus the magnetic survey was repeated with a 50 ft station spacing. The reconnaissance anomaly values were also used in a Geometrics computer program to give a shaded contour map shown in Figure 9. This is very general in nature because the station spacing is 100 ft but the traverse lines are spaced at 200 ft. The magnetic anomaly areas stand out clearly but the contours are not smoothly defined. For this reason, a hand-drawn contour map shown in Figure 10 was also prepared for comparison purposes.
Data reduction and plotting of the detailed magnetic data were done by the claim holder on 5 days on Nov. 13 S 15 and Dec. 7, 8 S 9,1999. The magnetometer readings taken at 50 ft intervals along the traverse lines are given in Table 2. For plotting purposes a base level of 56000 gamma was subtracted to give magnetic anomaly values. These values were plotted to give magnetic anomaly profiles for each traverse line. On each profile an elevation profile with the surface geology has been included for correlating the magnetic anomalies with surface elevation and geology. Figure 11 shows line 50, Figure 12 shows line 250, Figure 13 shows line 450, Figure 14 shows line 650, Figure 15 shows line 850, Figure 16 shows line 1050, Figure 17 shows line 1250 and Figure 18 shows the profile along the 1600 line. With the closer station spacing, these profiles generally show a series of sharp, narrow anomaly peaks indicating many narrow bands containing magnetite rather than one broader deposit. While the more southern profiles do show some correlation of a magnetic anomaly with the carbonate zone, they also show a magnetic anomaly to the west over the red rhyolite and to the east over the black rhyolite slope. Of interest is the highest magnetic anomaly at 1400 ft on line 250. This occurs at the top of a red rhyolite ridge with no surface exposure of a magnetite bearing formation. The anomaly has been checked to exist some distance either side of the traverse line. Century old blasted magnetite bearing rock exists nearby which has the second highest density of samples analyzed (3.6 gm/cc). This indicates that a magnetite formation must be nearby or under the
TABLE NO. l RECONNAISSANCE MAGNETOMETER SURVEY READINGS Geometrics Proton Magnetometer Model 512
Observer: Lloyd G.D. Thompson
MAGNETOMETER I STATION
Sept. 13 - 20,LINE 50
1600150014001300
BASE 120011001000900800
LINE 2501600150014001300120011001000900800
LINE 4501600150014001300120011001000900800
LINE 6501600150014001300120011001000900800
HEADING 1 gamma
1999
572255728057738576115832658671592425789057260
575555906863504578825878559131589585765856929
574385699656684579005782959799601355839956555
578905708857577569025719658448586825765656862
\NOMALY gamma
123012801740161023302670324018901260
15603070750018802790313029601660930
14401000680
19001830380041402400
. 560
189010901580900
1200245026801660860
MAGNETOMETER J STATION
LINE 8501600150014001300120011001000900800
LINE 10501600150014001300120011001000900800
LINE 12501600150014001300120011001000900800
HEADING 1 gamma
571155714556244591156067560267592715732356900
577505679660429610646065559152579085736456947
5706657159590215951961497EST.EST.EST.EST.
WJOMALY gamma
11201150240
31204680427032701320900
1750800
443050604660315019101360950
10701160302035205500400025001250950
7000 i—
6000 —
2^0 and
Figure No. 7 ReconnaissanceAnor.aly Profiles for TraverseLinesLookins: I^orth
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Figure No. S
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Reconnaissance Magnetic Anomaly Profiles for Traverse Lines 6^, ^, 1050 and 1250 Looking North
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. '99
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t
CONTOUR PLOT OF DATA FILE BMMADOC.REV
500.000 1500.00 2500.00 3500.00 4500.00 5500.00
1000.00 2000.00 3000.00 4000.00 5000.00 6000.00 X//
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Figure No. 10 Hand-drawn Contour Kap of Reconnaissance Magnetic Anomaly Data
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TABLE NO. 2 DETAILED MAGNETOMETER SURVEY READINGS Geometrics Proton Magnetometer Model 512
Observer: Lloyd G.D. Thompson
MAGNETOMETER READING ANOMALY STATION gamma gamma
Oct. 1-4, 1999 and Nov.LINE 50
16001550150014501400135013001250
BASE 12001150110010501000950900850800
LINE 2501600155015001450140013501300125012001150110010501000950900850800
5727357766573935729057873579265763256470583315798858669589465912958362578085753757167
5758158893590555853063491590205789057939587305913859095600695893058090575885714456831
16, 1999
1273176613931290187319261632470
233119882669294631292362180815371167
15812893305525307491302018901939273031383095.40692930209015881144831
MAGNETOMETER READING ANOMALY STATION gamma gamma
LINE 4501600155015001450140013501300125012001150110010501000950900850800
LINE 6501600155015001450140013501300125012001150110010501000950900850800
5735157675570415680456660574195794359284579186224259741602826007959413583405720856432
5791057544571505763757595574555689856624571985797558419591505866258952576525716856882
135116751041804660
14191943328419186242374142824079341323401208432
191015441150163715951455898624
11981975241931502662295216521168882
LINE 8501600155015001450140013501300125012001150110010501000950900850800
LINE 10501600155015001450140013601300125012001150110010501000950900850800
5709457049571935694656289579065919358957604935794560219598355921558002573145710656935
5780157208567915727960530597456115858927607765874459180586695799857557575325714957026
109410491193946289
19063193295744931945421938353125200213141106935
18011208791
12794530374551582927477627443180266919981557153211491026
LINE 12501600155015001450140013501300125012001150110010501000950900850800
LINE 160012001150110010501000950900850800750700650600550500450400350300250
57115570855724358034590925913059586602726151760294EST.EST.EST.EST.EST.EST.EST.
5724557023572835776358047579115715057167577885758257862578725784057783581185747657785578195791657592
1115108512432034309231303586427255174294400034002500200012501100950
12451023128317632047191111501167178815821862187218401783211814761785181919161592
4000
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?igure No. 11 Detailed Magnetic Ano-.nalyProfile for Traverse Line 50 with Elevation Profile and Surface Geology Looking North
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Figure No. 12 Detailed Magnetic Anomaly Profile for Traverse Line 250 with Elevation Profile and Surface Geology Looking North
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4000
Jetailed Magnetic Anomaly Profile for Traverse Line 450 with Elevation Profile and Surface Geology Lookin? North
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Figure No. 1^ Je tailed. Magnetic Anomaly Profile for Traverse Line 650 with Elevation profile and Surface Geology Looking North
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Figure No. Detailed Magnetic Anomaly Profile for Traverse Line 850 with Elevation profile and Surface Geology Looking North
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Figure No. 16 detailed Magnetic Anomaly Profile for Traverse Line 1050 with Elevation Profile and Surface Geology Looking North
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Figure No. l? Detailed Magnetic Anomaly Profile for Traverse Line 1250 with Elevation Profile and Surface Geology LookingNorth
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1 1 1 1
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Figure No. 18 Jetailed Magnetic Anomaly Profile for Traverse Line 1600 Looking East
i
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VERTICAL "S C A L ("z: /OOO
tfoff.iz.QM r A L scALf : i-
GRID FRO**
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. '00
surface red rhyolite. The most interesting traverse line is line 450 (Figure 13). The carbonate zone has been located on the east slope of the ridge and samples of hematite-bearing carbonate have been found. Little century old blasting was done at this spot and the exact width of the carbonate zone is not known. While the observed outcrop was less than 50 ft wide, the high magnetic anomaly at the brow of the ridge at 1150 ft indicates that the zone could be up to 75 ft wide. Also, there is a high magnetic anomaly down the black rhyolite slope at about 1050 ft where outcrop samples of magnetite bearing black rhyolite were found.
VII. GRAVITY METER SURVEY
A. PURPOSE
The purpose of the gravity survey was to obtain gravityanomaly profiles along the traverse lines over the rhyoliteoutcrop ridge in hopes of finding a gravity anomaly that wouldindicate a small deposit of massive compact hematite.
B. INSTRUMENTATION
A North American Gravity Meter AG-1 No. 93 owned by the claim holder was used for the survey. This gravity meter has a high sensitivity calibration factor of 0.09102 milligals per division and is ideal for detecting small anomalies of a few milligals or less. Its reading sensitivity is + S- 0 .1 division which gives a measuring accuracy of + S- 0 .01 milligals. This gravity meter is an original large size model (11* in diameter, 13'' high, weight 27 Ib) but is still in excellent operating condition (the claim holder is the only known living person who can service and repair these instruments). The main spring is well-aged and has little or no drift which allows long traverses to be done without continual base readings. It is temperature controlled with mercury thermostats and electric relays. It operates on 6 volt batteries which are expendable after a season of field use. The instrument must be handled very carefully and is kept in a padded, shocked-mounted carrying pot. For readings, the instrument is set on a tripod with a levelling head. For this project involving transport through heavy bush and forest areas, the battery, shock-mounted carrying pot and gravity meter were secured in a deep-body plastic cart to which 2 long metal rods were attached. The whole assembly weighed about 100 Ibs and was carried by 2 people like a stretcher. Before the field survey, the gravity meter had to be checked and serviced, heated on a 6 volt battery to an operating temperature of 29 degrees Centigrade and left for a few days to stabilize. The measuring range was then reset to the latitude of the survey area and the meter allowed to stabilize. This procedure takes one to 2 weeks. Two 6 volt batteries are required for continous operation of the gravity meter with off-duty charging of the batteries. The gravity meter was transported to the site in a rented station wagon which had a third fold-up seat at the back door where the gravity meter and carrying pot could be placed safely in the foot well. At the site, the gravity meter and pot were placed in the
carrying cart. Although this gravity meter was cumbersome to transport in the field, it was particularly suitable for this survey project.
C. GRAVITY SURVEYING WORK DONE
Prior to the field survey the gravity meter was prepared for field use. It was serviced and checked, brought to operating temperature, stabilized, range reset and restabilized. This took one week from Sept.14 to 21, 1999 with 3 work days on Sept. 14, 16, and 18. The survey Base Station was at grid location 50+1200. Gravity meter readings were taken relative to this Base at 100 ft spacing along the traverse lines. First the tripod (14 Ib) was carried to the station location, set up and levelled. It was not possible to set up the tripod right at a survey stake so the exact location was measured, recorded and marked for the elevation survey. Also the height of the tripod base plate (Instrument Height) above the ground point was measured and recorded. Then the gravity meter was carried to the site, set up and read. This procedure was time consuming. With only one helper, the claim holder (who placed the tripod) had to make 6 trips back and forth along a traverse line, whereas with 2 helpers (one day) only 2 trips were needed. This field work was done on 5 days on Sept. 22, 23, 24 and 25 and Oct. l, 1999. A total of 59 stations were completed and a distance of 5200 ft (0.98 mi or 1.59 km) was surveyed.
After the elevation survey and its data processing were done, the processing of the gravity data was done. First, the "Observed Gravity" relative to the Base station was calculated. The initial readings were corrected for any small drift by plotting drift curves. The difference in readings from the Base value was calculated and these differences were multiplied by the gravity meter scale factor of 0.09102 milligals per division to give gravity differences in milligals. These data are given in Table 3.
Next, these gravity differences ("Observed Gravity") were processed (Gravity Reduction) by applying various corrections to give gravity anomalies relative to the Base Station which is assumed to have zero gravity anomaly. These corrections included an elevation correction-(-O.09406 milligal per ft), a Bouguer correction (for the attraction of material between the Base level and the station level) and a latitude correction (1.287 mgl/mile or 0.0002437 mgl/ft for this site). The Bouguer correction depends on the density of the local material. For a density of 2.67 gm/cc (the average density of the non-mineralized rock at the site), the combined elevation and Bouguer corrections are a convenient -0.060 mgl/ft. The latitude correction was calculated by drawing a true east-west line through the Base Station and calculating the perpendicular distance from each station to this line (a latitude line). Multiplying by the above factor gave the correction. Adding all the corrections to the observed gravity values gave the bouguer anomaly values. Since these anomaly values were very small and mostly negative, the Base value was
TABLE NO. 3 GRAVITY METER OBSERVATIONSNorth American Gravity Meter No. 93
Scale Factor 0.09102 mi lligals/division Observer: Lloyd G. D. Thompson
GRAVITY METER STATION
Sept. 22/99Base: 50+119950+109850+100350+90150+801Base: 50+119950+130250+140150+150150+1599Base: 50+1199
Base: 50+1199250+1299250+1201250+1099250+999250+899250+798Base: 50+1199
Sept. 23/99Base: 50+1199450+1401450+1301450+1199450+1099450+999450+897450+802450+1401Base: 50+1199
Base: 50+1199650+1401650+1501650+1599450+1599250+1598250+1501250+1402450+1503650+1401Base: 50+1199
DIAL READING
455.3450. 4450.2452.4453.3455.1454.5459. 4467.3469.9454.9
455.1460.4461.4462.1461.2458.7456.7456.6
456.7458.5453.0448.4450.0466.1468.1464.9457.5455.6
455.5461.4464.8470.9471.7475.4460.3453.7467.6462.4455.3
CORRECTED READING
455.3450. 4450.3452.5453.5455.3454.5459.5467.4470.1455.1
455.1460.2461.1461.6460.6457.8455.6455.1
456.7458.7453.3448.8450.5466.7468.7465.6458.5456.7
455.5461.4464.8471.0471.8475.5460.4453.9467.8
X462.6455.5
METER DELTA R DELTA g HEIGHT BASE BASE
1.461.471.531.471.431.461.501.421.531.481.46
1.461.451.491.451.401.441.491.46
1.461.421.441. 421.421.401.251.401.421.46
1.461.491.491.421.501.401.701.221.481.491.46
0.0-4.9-5.0-2.8-1.80.0
-0.64.4
12.315.00.0
0.05.16.06.55.52.70.50.0
0.02.0
-3.4-7.9-6.210.012.08.91.80.0
0.05.99.3
15.516.320.04.9
-1.612.37.10.0
0.00-0.45-0.46-0.25-0.160.00
-0.050.401.121.370.00
0.000.460.550.590.500.250.050.00
0.000.18
-0.31-0.72-0.560.911.090.810.160.00
0.000.540.851.411.481.820.45
-0.151.120.650.00
Sept. 24/99Base: 50+1199650+14011250+15991250+15011250+14011250+13011250+12121050+12991050+12011050+11011050+10011050+9011050+801850+801850+909850+1002850+1104850+1208850+1301850+1398650+1401Base: 50+1199
Oct. 1/99Base: 50+1199650+1401650+1299650+1201650+1103650+997650+897650+799650+1401850+1499850+15991050+15991050+14991050+1402650+1401Base: 50+1199
449.4456.0463.7462.0461.7461.6458.6451. 9454.1466.3465.6464.4463.1464.1464.7463.3453.0448.6445.8451.4457.5451.8
450.1456.0463.5461.8461.4461.3458.2451.4453.6465.6454.8463.6462.2463.1463.7462.2451. 9447.4444.5450.0456.0450.1
1.461.491.481.501.471.441.391.261.441.451.431.351.301.211.201.391.461.271.431.521.491.46
0.05.9
13.411.711.311.28.11.33.4
15.514.713.512.113.013.612.11.8
-2.7-5.6-0.15.90.0-
0.000.541.221.061.031.020.740.120.311.411.341.231.101.181.241.100.16
-0.25-0.51-0.010.540.00
453.0459.1455.6458.1459.0466.5466.0463.7458.9462.7469.8471.8465.9454.3459.3453.1
453.0458.9455.4457.9458.9466.4465.9463.6458.9462.7469.7471.6465.7454.0458.9453.0
1.461.491.391.491.411.321.231.301.491.441.251.431.451.301.491.46
0.05.92.44.95.9
13.412.910.65.99.7
16.718.612.71.05.90.0
0.000.540.220.450.541.221.170.960.540.881.521.691.160.090.540.00
increased to 2.00 mgl so that the resulting anomalies were all positive (for easy plotting). This data processing (reduction) is given in Table 4 which includes the ground elevation survey data, the gravity meter height measurements and the final gravity anomaly values. This data reduction and plotting was done by the author on 11 days on June 8, Nov. 2, 3, 4, 29, and 30 and Dec. l, 2, 3, 5, and 6, 1999.
D. GRAVITY PROFILING RESULTS
The gravity anomaly values (still called Bouguer gravity anomalies) in the last column of Table 4 were plotted for each traverse line. The surface geology is also marked below each curve. Figure 19 includes line 50 and line 250. Figure 20 has line 450. Figure 21 has line 650. Figure 22 has line 850. Figure 23 includes line 1050 and line 1250. Profiles 50 through 650 show distinct regional trends which would normally be subtracted from the profiles to give Residual Anomaly Profiles. However, without doing this one can readily see that the anomalies are only 2 or 3 tenths of a milligal. Profiles over lines 850 and 1059 show a small broad anomaly over the whole rhyolite ridge. The anomaly at the west end of line 50 could be attributed to the amphibolite which has a density of about 2.85 compared to 2.55 for red rhyolite and 2.65 for Shadow Lake Limestone. Line 450 has 2 small but interesting anomalies of about 0.3 mgl.
To assess the anomaly that might be expected over a small hematite deposit, calculations were made for model bodies of a sphere, vertical cylinder, vertical infinte sheet and thin dipping sheet. Of these, a small vertical cylinder of finite depth seemed to be the best representation. The overall objective of the exploration project is to find a small, massive compact hematite deposit with a density of 4 to 5 gm/cc. A vertical cylinder near the surface 50 ft in diameter and 100 ft in depth with a density of 5.0 gm/cc would contain about 27,500 tonnes of ore (25,000 tonnes is the target). The host rock has a density of about 2.7 gm/cc which gives a density contrast of 2.3 gm/cc for calculating the gravity over the cylinder which comes to 0.65 mgl (see any geophysics text book). Since an actual hematite deposit is most likely to be a pocket or pod of irregular shape and maybe less than 50 ft wide, the gravity anomaly can be expected to be a little less. The heaviest samples with compact hematite and magnetite found so far have a density of about 3.6 gm/cc. Using this value, the density contrast is only 0.9 gm/cc which gives a gravity over the cylinder of 0.25 mgl. which would contain about 20,000 tonnes of mineralized rock. Since the anomalies on line 450 are 0.3 mgl or higher, the mineral deposits could have a density greater than 3.6 gm/cc and are of interest for further exploration.
10
TABLE NO. 4 GRAVITY SURVEY DATA REDUCTION
GRAVITY METER STATION
BENCHMARKLINE 50BASE 1199
1599150114011302119910981003901801
LINE 250159815011402129912011099999899798
LINE 450159915031401130111991099999897802
LINE 650159915011401129912011103997897799
DELTA g GROUND METER METER BASE ELEVATION HEIGHT ELEVATION mgal ft ft ft
0.001.371.120.40
-0.050.00
-0.45-0.46-0.25-0.16
1.820.45
-0.150.460.550.590.500.250.05
1.481.120.17-0.31-0.72-0.560.911.090.81
1.410.850.540.220.450.541.221.170.96
670,00
664.65649.90656.13667.29666.38664.65669.69669.32662.86658.27
621.83642.30651.48640.97638.21635.57635.40637.21638.01
624.27631.22640.86645.43651.86647.00628.10622.75624.72
622.73629.16634.24638.81634.95632.44621.16619.74621.65
1.461.481.531.421.501.461.471.531.471.43
1.401.701.221.451.491.451.401.441.49
1.501.481.421.441.421.421.401.251.40
1.421.491.491.391.491.411.321.231.30
666.11651.38657.66668.71667.88666.11671.16670.85664.33659.70
623.23644.00652.70642.42639.70637.02636.80638.65639.50
625.77632.70642.28646.87653.28648.42629.50624.00626.12
624.15630.65635.73640.20636.44633.85622.48620.97622.95
DELTA h BOUGUER LATITUDE BOUGUER ANOMALY BASE CORRECTION CORRECTION ANOMALY +2.00 ft mgal mgal mgal mgal
0.00-14.73-8.452.601.770.005.054.74
-1.78-6.41
-42.88-22.11-13.41-23.69-26.41-29.09-29.31-27.46-26.61
-40.34-33.41-23.83-19.24-12.83-17.69-36.61-42.11-39.99
-41.96-35.46-30.38-25.91-29.67-32.26-43.63-45.14-43.16
0.00-0.88-0.510.160.110.000.300.28
-0.11-0.38
-2.57-1.33-0.80-1.42-1.58-1.75-1.76-1.65-1.60
-2.42-2.00-1.43-1.15-0.77-1.06-2.20-2.53-2.40
-2.52-2.13-1.82-1.55-1.78-1.94-2.62-2.71-2.59
0.000.040.030.020.010.00
-0.01-0.02-0.03-0.04
0.080.070.060.050.050.040.030.020.01
0.130.120.110.100.090.080.070.060.05
0.180.170.160.150.140.130.120.110.10
0.000.530.640.580.070.00
-0.16-0.20-0.39-0.58
-0.67-0.81-0.89-0.91-0.98-1.12-1.23-1.38-1.54
-0.81-0.76-1.15-1.36-1.40-1.54-1.22-1.38-1.54
-0.93-1.11-1.12-1.18-1.19-1.27-1.28-1.43-1.53
2.002.532.642.582.072.001.841.801.611.42
1.331.191.111.091.020.880.770.620.46
1.191.240.850.640.600.460.780.620.46
1.070.890.880.820.810.730.720.570.47
LINE 8501599149913981301120811041002909801
LINE 10501599149914021299120111011001901801
LINE 125015991501140113011212
1.520.88
-0.01-0.51-0.250.161.101.241.18
1.691.160.090.120.311.411.341.231.10
1.221.061.031.020.74
618.52627.66648.13656.84653.26644.54627.28622.89623.24
613.41629.17647.05645.83641.72622.83622.06621.68621.82
618.26620.69622.12623.88624.01
1.251.441.521.431.271.461.391.201.21
1.431.451.301.261.441.451.431.351.30
1.481.501.471.441.39
619.77629.10649.65658.27654.53646.00628.67624.09624.45
614.84630.62648.35647.09643.16624.28623.49623.03623.12
619.74622.19623.59625.32625.40
-46.34-37.01-16.46-7.84
-11.58 .-20.11-37.44-42.02-41.66
-51.27-35.49-17.76-19.02-22.95-41.83-42.62-43.08-42.99
-46.37-43.92-42.52-40.79-40.71
-2.78-2.22-0.99-0.47-0.69-1.21-2.25-2.52-2.50
-3.08-2.13-1.07-1.14-1.38-2.51-2.56-2.58-2.58
-2.78-2.64-2.55-2.45-2.44
0.22 0.210.200.190.180.180.17'x
0.160.15
0.270.260.250.240.230.220.210.200.19
0.310.300.290.280.27
-1.04-1.13-0.80-0.79-0.76-0.87-0.98-1.12-1.17
-1.12-0.71-0.73-0.78-0.84-0.88-1.01-1.15-1.29
-1.25-1.28-1.23-1,15-1,43
0.960.871.201.211.241.131.020.880.83
0.881.291.271.221.161.120.990.850.71
0.750.720.770.850.57
Fifrure Bouguer Gravity Anomaly Profile for Traverse Lines 50 and 250 with Peak Magnetic Anomaly Locations and Surface Geolosrv Lookin North
OUTCROP RID
AMD Q
OUTCROP {NOLL
GRID LOT (FT)
Figure No. 20 Bouguer Gravity Anomaly Profile for Traverse Line ^50 with peak Magnetic Anomaly Locations and Surface Geology Looking North
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Figure No. 21 Bouguer Gravity Anomaly Profile for Traverse Line 650 with Peak Magnetic Anor.aly Locations and Surface Geology Looking North
vix
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Figure No. 22 Bouguer Gravity AnomalyProfile for Traverse Line 850 with Peak Magnetic Anomaly Locations and Surface Geology Looking North
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VIII. SURFACE SAMPLE ANALYSIS
A. WORK DONE
A Density (Specific Gravity) Analysis of surface bulk samples was done by the claim holder in his own laboratory facilities. This analysis was done not only for geological mapping but also for the gravity survey data reduction and interpretation for which the average densities of the host rock and mineral samples are required. An Ohaus Triple Beam Balance with maximum direct load of 610 grams was used to measure the Density of the samples. The balance sensitivity was 0.01 grams. Measurements were made to 0.1 grams which gave 4 significant figures in the measured weights. This ensured a three-figure accuracy in the Density determinations. The surface samples were trimmed to lumps of less than 610 grams. Measurements were made on 36 samples from the survey site and one on a reference sample of specular hematite from Brazil. The analysis was done by the claim holder on 9 days on June 7, Sept. 28 S 29, Oct. 23 5- 31, Nov. 5 , 8 ,18 and 19, 1999.
B. ANALYSIS RESULTS
The results of the surface sample analysis are given in Table 5 . The average densities for the different rock types areas foilows:
Amphibolite schist 2.86Amphibolite/rhyolite/hematite/magnetite 3.59Light red rhyolite 2.51Dark red rhyolite 2.68Black rhyolite 2.79Carbonate/black rhyolite 2.65Black rhyolite/magnetite/chalcopyrite 2.95Shadow Lake limestone/sandstone 2.69Earthy red hematite 3.41Black rhyolite/magnetite/hematite 3.17Specular hematite (Brazil) 5.24
The heaviest samples of mineralized rock were of magnetite and hematite in black rhyolite from a small pit at the 1050 line with a density of 3.68 gm/cc and of magnetite and hematite in the contact zone of amphibolite and red rhyolite near the 250 line with a density of 3.64 gm/cc. This indicates that the amphibolite/red rhyolite contact zone as well as the carbonate zone has good potential for hematite deposits.
IX. FINAL RESULTS AND CONCLUSIONS
This exploration project was successful and very beneficial for the Ontario mining industry. The project survey grid provided the basis for detailed mapping of the project area to give the accurate location of topographic, exploration and mining features. It will also be a valuable reference base for future exploration and mining purposes. The project work
11
TABLE 5. SURFACE SAMPLE DENSITY ANALYSIS RESULTS.
SAMPLE NO. DESCRIPTION
GRID LOCATION
SAMPLE WEIGHT
DENSITY gm/cc
175+1350 403 gm
1 Amphibolite Schist 50+1300 287 gm2 Amphibolite Schist 150+1500 410 gm3 Amphibolite Schist 150+1500 308 gm4 Amphibolite Schist 150+1500 194 gm5 Amphibolite/Rhyolite 175+1450 371 gm
transition zone6 Mineralized Amphi
bolite/Rhyolite from small pit at contact zone
7 As 6 above with 250+1400 484 gm magnetite/hematite at peak magnetic anomaly
8 As 7 above9 As 7 above
10 Light red Rhyolite11 Light red Rhyolite12 Dark red Rhyolite13 Mineralized dark
red Rhyolite14 Dark red Rhyolite15 Black Rhyolite, from
east side of ridge16 As 15 above17 As 15 above grading
from dark red Rhyolite18 Weathered alteration
zone of carbonate with black Rhyolite
19 As 18 above20 As 18 above with
earthy red hematite21 Black Rhyolite with
magnetite/chaicopyrite22 As 21 above23 Shadow Lake Limestone
basal conglomerate float rock
24 Shadow Lake Sand- Off grid 408 gm stone/limestone from outcrop knoll at farm house S barn
25 Earthy red Hematite 1040+1290 437 gm from big pit
26 As 25 above 1040+1290 254 gm27 As 25 above 1040+1290 478 gm
2.842.842.902.862.77
250+1400250+1400175+1300250+1335250+1400550+1200
560+1390850+1120
850+1120650+1100
450+1080
450+1085450+1085
450+1050
450+10501050+1100
531572214299256383
292287
117246
176
580547
240
256308
gmgmgmgmgmgm
gmgm
gmgm
gm
gmgm
gm
gmgm
3.10
3.56
3.643.542.522.502.612.74
2.682.73
2.822.83
2.73
2.662.57
3.12
2.782.72
2.65
3.36
3.533.35
28 Black Rhyolite with Magnetite/Hematite from small pit
29 As 28 above30 As 28 above31 As 28 above32 As 28 above33 Black Rhyolite with
Magnetite/Hematite from big pit
34 As 33 above35 Black Rhyolite with
Magnetite (loose blasted rock)
36 As 35 above37 Specular Hematite
from Brazil
1050+1350 542 gm
1050+1350 1050+1350 1050+1350 1050+1350 1040+1290
1040+1290 450+1150
450+1150ReferenceSample
181 gm220 gm546 gm413 gm270 gm
138 gm 591 gm
233 gm 119 gm
2.83
2.802.913.683.682.75
2.833.61
3.425.24
provided magnetic, gravity, elevation and geological profiles along 7 traverse lines across a mineralized rhyolite outcrop ridge covering a heretofore unexplored area 800 ft by 1250 ft of a claim available for exploration and mine development.
Although no huge hematite deposit was indicated by the survey profiles, much information about the property was obtained and 2 or 3 sites for more detailed exploration were located. The magnetic anomalies on most of the profiles were..narrow and very sharp indicating only narrow veins containing magnetite. Of interest is the fact that large magnetic anomalies occur on the east slope of the ridge in black rhyolite and even beyond in the flat overburden area. In particular, the magnetic anomaly on line 450 at 1050 ft in black rhyolite is of interest because samples contain compact hematite as well as magnetite. Also, the magnetic anomaly on line 250 at 1400 ft is interesting because it occurs near the contact of amphibolite and red rhyolite and samples contain compact hematite and magnetite. The St. Charles iron mine to the south that produced hematite ore up to 1899 is located in a large body of amphibolite so that hematite associated with the amphibolite on the survey area is a distinct possibility. The gravity anomaly profile for line 250 does not show any anomaly where the high magnetic anomaly occurs. Hence, there is no possibility of a significant hematite deposit or even a magnetite deposit. However, there is a gravity anomaly on line 50 of over 0.3 mgl over the amphibolite outcrop which could indicate the presence of hematite. On line 450 there is a gravity anomaly east of the carbonate zone over black rhyolite as well as a magnetite anomaly. This location, therefore, has a good potential for a hematite/magnetite deposit. Also, the gravity anomaly at the west end of line 450 could be explored further. The gravity profiles along lines 850 and 1050 show a broad gravity anomaly over the whole rhyolite ridge which indicates the subsurface rock has a higher density than the assumed 2.67 gm/cc, probably from iron and copper mineralization (noted in some dark red rhyolite samples).
The geological mapping made the important discovery that the "granite" was actually Rhyolite (an acid metavolcanic). Also, the north part of the survey area was a different geological regime with amphibolite and Shadow Lake (basal conglomerate) which appeared to be present at the higher elevations to the east. The elevation contour map (Figure 6), although general in nature, correlates well with the topograhic features shown in the geology map (Figure 5). There appears to be discontinuities in the rhyolite ridge, probaly caused by glaciation or faulting, at the 250, 650 and 1150 grid lines.
X. FINAL RECOMMENDATIONS
Further exploration work on the project survey grid area would be beneficial. Additional detailed geophysical surveying and perhaps diamond drilling over the amphibolite area at the west end of line 50, the area at the west end of line 450 and particularly at the east end of line 450 at the 1000 ft mark are
12
recommended. Also, there are still 800 ft along the rhyolite ridge to the south , 600 ft to the west and 800 ft to the east that are still open for exploration.
XI. REFERENCES
ODM Map 2154, 1967
ODM GR No. 73, 1968
13
XII. APPENDIX A
QUALIFICATIONS Dr. Lloyd G. D. Thompson, P.Eng.
CANADIAN Citizen, VETERAN RCAF Pilot, Prof. Engineer in Mining. B.A.Se. 1950, U. of T. Engineering Physics, Geophysics. M.Se. 1951 and Ph.D. 1956, U.W.O. Physics. Permanent Prospectors Licence A33703.
1948-50: Underground geothermal surveys in 15 mines in Kirkland Lake, Larder Lake, Timmins, Sudbury, Thetford Mines, Fort Coulonge area and Cadillac-Malartic area.
1951: Gravity survey, Kam Kotia property, Timmins, for Hollinger Mine .
1951-58: Regional gravity surveys over most of Ontario, Quebec, Manitoba, Saskatchewan and Northwest Territories for Department of Mines and Technical Surveys, Ottawa. Developed improved Pendulum Apparatus for measuring gravity.
1958-64: Developed first successful airborne gravity meter system and made first airborne gravity meter surveys for USAF. Developed improved airborne gravity meter instrumentation.
1961-71: Principal Investigator for NASA for gravity experiments for lunar program. Developed first quartz vertical gravity gradient meter. Gravity and gravity gradient surveys, Brothers, Oregon for lunar exploration program.
1964-74: Adjunct Professor of Oceanography, Northeastern University, Boston, Mass. Taught M.Se. courses in marine geophysics, ocean instruments, and marine seismic systems.
1968: Gravity meter test survey on deep ocean submersible Aluminaut, Puerto Rico Trench area, for U.S. Naval Oceanographic Office, Washington, D.C.
1971-74: Research Scientist, Weston Seismological Observatory, Boston College, Boston, Mass. Developed quartz angular accelerometer for USAF inertial guidance test facility.
1972-74: Gold property exploration and mine development, Port Dufferin, N.S., for Lons Mining Ltd., London, Ont.
1975-76: Regional Mines Engineer, MNR, Sec. 9 of Mining Act.
1977-84: Regional Mineral Resources Coordinator, MNR Central Region, Pits and Quarries Control Act.
14
1984-89: Regional Geophysicist for Southern Ontario, MNDM Tweed. Developed first Computer Assisted Portable Seimograph and shallow seismic reflection technique. Numerous seismic surveys for faults, sand and gravel deposits and water acquifers. Numerous magnetic surveys over magnetite deposits. Geophysical study of fluorite deposits in Madoc-Tweed area.
1989: Retired from MNDM.
1957-1998: Prospecting, exploration and development of magnetite property in South Canonto Township, Frontenac Co. Magnetic and gravity surveys, sample analyses, diamond drilling, and OPAP projects in 1993, 1994, and 1996. Closure Plan completed, approved and production started in 1997. Property acquired by Jarvis Resources Ltd. in 1998.
15
XIII. APPENDIX B
VALUE OF ASSESSMENT WORK DONE
The exploration work completed in this report was done under OPAP Grant No. OPG 99-136. The labour costs and allowed expenses under OPAP are simply to assist the prospector and do not reflect the true value of the exploration work done. Also, no compensation is allowed for the use of all field equipment, survey instruments, laboratory test facilities and office facilities provided by the grantee. In this particular project, Dr. Thompson personally did all of the work (with a helper) which could not be done or evaluated as a turnkey or contract operation. Therefore, the work was done as a series of individual survey projects which can be evaluated. For the OPAP project, the labour costs were based the number of work days and not the survey cost per line kilometer. This was particularly applicable for this survey work which was done on the basis of the number of survey stations established on a grid. Therefore, it is best to evaluate the work done on a work day basis and to evaluate each type of survey individually.
Several geophysical, exploration and local labour sources were contacted to establish current "Industry Standard" survey costs with the following results:
LABOUR Per Day Rate
Consultant Geologist S1200Industrial Mineral Consultant 1000Senior Geologist 500 (Av}Junior Geologist 300 (Av)Prof. Land Surveyor, P.Eng. 800 (Av)Surveyor Assistant 300Geophysical Instrument Operator 500Geophysical Assistant 200Local Professional Line Cutter 300Local Casual Line Cutter 200
INSTRUMENT RENTAL Per Week Rate
Gravity Meter, Scintrex, High Sensitivity CD3M 1700 (Pro-rated per CG3 rate plus S200 service charge + GST + Delivery)
Dr. Thompson provides mining and geophysical exploration services and surveys under TOMLID IRON MINES, a Registerd Ontario Proprietorship. TOMLID (Dr. Thompson) has instruments and equipment for grid, magnetic, gravity, seismic and elevation (differential levelling) surveys. Also, it has office facilities for data processing, reduction, analysis and interpretation with geophysical computer programs. Also, it has laboratory facilities for rock density analysis and instrument repairs.
16
Services are provided by TOMLID per the following reduced rate schedule:
LABOUR Rate Per Dav
Consultant Mining Engineer and Geophysicist, P.Eng. S1320For long term project Consultant 1000Project Field Supervisor 500Land Surveyor, P.Eng. 500Surveyor Assistant 200Geologist 300Geophysical Instrument Operator 400Geophysical Survey Assistant 200Casual Line Cutter 150Data Processing/Interpretation 300Draftsman 200Report Author 500Word Processing 150
RENTALS Rate Per Week
North American Gravity Meter, High Sensitivity S1250Magnetometer, Sharpe, Needle Type 45T.H.S. Theodolite, Rod and Chain 100Soil Auger and Extension 5Gas Weed/Brush Cutter with Gas 5
Rock Sample Density Analysis - Per Sample $75
Since Dr. Thompson performed a multi-role function on this OPAP exploration project, the value of the survey work done has appropriately been calculated based on the above rate schedule for TOMLID IRON MINES. A summary of the value of the work done foilows:
GRID SURVEY (800 1 X 1200') - 22 days, 59 stations, 2.73 km- Difficult Work - see p.2
Consultant Geophysicist 2 days $2000Project Supervisor 2 days 1000Land Surveyor 2 days 1000Line Cutter 16+20 days 5400Draftsman 2 days 400
GEOLOGY MAPPING AND SAMPLING - 11 days, 36 samples, 3.50 kmGeologist 11 days $3300Draftsman 4 days 800
RECONNAISSANCE MAGNETIC SURVEY - 5 days, 59 stations, 1.59 kmInstrument Operator 2 days $800Assistant l day 200Data Processing 3 days 900Draftsman 4 days 800
17
DETAILED MAGNETIC SURVEY - 7 days, 132 stations, 1.91 kmInstrument Operator 2 days $800Assistant 2 days 400Data Processing 5 days 1500Draftsman 4 days 800
GRAVITY SURVEY - 19 days, 59 stations, 1.59 kmInstrument Operator 8 days $ 3200Assistant 4 days 800Data Reduction 11 days 3300Draftsman 3 days 600
ELEVATION SURVEY - 6 days, 59 stations, 1.59 kmLand Surveyor 3 days SlSOOAssistant 3 days 600Data Processing 3 days 900Draftsman 2 days 400
REPORT PREPARATION - 11 days, 18 pages, 5 Tables, 23 FiguresConsultant Geophysicist l day SlOOOReport Author 5 days 2500Word Processing 5 days 750
TOTAL LABOUR DAYS 130
TOTAL VALUE OF LABOUR $35650
Under OPAP no compensation is allowed for the use of field equipment, survey instruments, office and laboratory facilities owned and provided by the grantee. The rental cost of such equipment and instruments and the value of the use of such facilities must be included in the value of the assessment work done. The expenditures allowed under OPAP plus those provided by TOMLID per the schedule on p.17 are as follows:
Per OPAP:
Per TOMLID:
Vehicle Rental (no km included) S1926.00 Supplies 283.64 Travel (km) 625.80 Food 456.61 Supplies 44.92 Gravity Meter Rental (l week) - see p.9 1250.00 Theodolite'Rental (l week) - see p.5,6 100.00 Soil Auger and Extension (l day) - see p.5 1.50 Weed/Brush Cutter S Gas (l week) - see p.2 5.00 Sample Density Analysis @ $75 per sample 2700.00 Line - Cutting Equipment - no charge Grid Surveying Equipment - no charge Geological S Sampling Equipment - no charge
TOTAL EXPENDITURES
TOTAL VALUE OF ASSESSMENT SURVEY WORK DONE
S7393.47
$43043.47
18
Ontario Ministry ofNorthern Developmentand Mines
Declaration of Assessment Work Performed on Mining LandMining Act, Subsection 65(2) and 66(3), R.8.O. 1990
Transaction Number (office use)
wooqo. OOP 61Assessment Files Research Imaging
Personal Information collected on this form Is obtained under the authority of subsections 65(2) and 66(3) of the Mining Act. Under section 8 of the Mining Act, the information Is a public record. This Information will be used to review the assessment work and correspond with the mining land holder. r Recorder, Ministry ol Northern Development and Mines, 6th Floor,
31C11SW2002 2.20360 MADOC 900recording a claim, use form 0240.
o n Q si *Z *J O \ )1. Recorded holder(s) (Attach a list if necessary)Mftniai
L L oy O G.^.TTfoWPSG*/Address ^ ^/e/? 3
TWttD f o/y KoK ^^OName
Address
Client Number JLO/ ^ ?6
Telephone Number6^-478-^42
Fax Number
Client Number
Telephone Number
Fax Number
2. Type of work performed: Check ( s ) and report on only ONE of the following groups for this declaration.
rpfeieotechnical: prospecting, surveys, i—i Physical: drilling, stripping, l—J assays and work under section 18 (regs) '—' trenching and associated aassays Rehabilitation
Work Type MrfG WET* C-
So/i.
Office UseCommodity
Total S Value of Work Claimed -43. OOtp
Oty 1 Monthf?Vnr Day | Month Yur
NTS ReferenceGlobal Positioning System Data (If available) 2A71 yv"3l' f 0-6" N
-77" 1i8' 3C,y*M
Township/AreaMining Division a
M or G-Plan Number Resident Geologist District
Please remember to: - obtain a work permit from the Ministry of Natural Resources as required;- provide proper notice to surface rights holders before starting work;- complete and attach a Statement of Costs, form 0212;- provide a map showing contiguous mining lands that are linked for assigning work;- include two copies of your technical report.
3. Person or companies who prepared the technical report (Attach a list if necessary)Namt
Address A
oy O (S~.P. -jTH&MPx&M
\ A 3 TVVG&O , ^/y KoK 3 JOName
Address
Name
Address
Telephone Number x 1 9 j j -? ft — ^""C" Gf ̂ O t * "" i f cP ^ 7 S*~
Fan Number
Telephone Nu
Fan Number
Telephone Ni
Fan Number
mber
RECEIVEDmber MAY l ^ 2000
HtOSCIENCE ASSESSMENT OfFICE
4. Certification by Recorded Holder or Agent
. O .. ____ ___________— , do hereby certify that l have personal knowledge of the facts set(Print Name)forth in this Declaration of Assessment Work having caused the work to be performed or witnessed the same during or after Its completion and, to the best of my knowledge, the annexed report Is true.Signature of Recorded Holder or Agent
Agent's Address Telephone Number
Date
Fax Number
5. Work to be recorded and distributed, jthe-mining Irnd where work was performed,
this form.
Work can only be assigned to claims that are contiguous (adjoining) to at the time work was performed. A map showing the contiguous link
M,u3l W.U.HH...,^.... .w,,,,. (joooqaGocol r* O /i-; /^Mining Calm Number. Or If work was done on other eligible mining land, show In this column the location number indicated on the claim map.
eg
eg
eg
1
2
3
4
5
6
7
8
9
10
11
' 1 2
i 1314
1 15
TB 7827
1234567
1234568
/0-77^^
Number of Claim Unite. For other mining land, list hectares.
16 ha
12
2
^
Column Totals
Value of work performed on this claim or other mining land.
S26, 825
0
S 8, 892
V,o4^
M,ojMi?
Value of work applied to this claim.
N/A
524,000
S 4,000
^ tyooo.oc
\
q,0O304
^ ' -' AV ^-' Value of workassigned to other mining claims.
324,000
0
0
O
tea'nk. Value V work to be distributed at a future date.
S2.825
0
S4.892
*39.0SiA
——————— f if ft a
Sr.-'^
l, , do hereby certify that the above work credits are eligible under(Print Full Name)
subsection 7 (1) of the Assessment Work Regulation 6/96 for assignment to contiguous claims or for application to the claim where the work was done.Signature of Recorded Holder or Agent Authorized in Writing Date
6. Instructions for cutting back credits that are not approved.
Some of the credits claimed in this declaration may be cut back. Please check ( *- ) in the boxes below to show howyou wish to prioritize the deletion of credits:
\*3 1 . Credits are to be cut back from the Bank first, followed by option 2 or 3 or 4 as indicated.
D 2. Credits are to be cut back starting with the claims listed last, working backwards; or
D 3. Credits are to be cut back equally over all claims listed in this declaration; or D 4. Credits are to be cut back as prioritized on the attached appendix or as follows (describe):
Note: If you have not indicated how your credits are to be deleted, credits will be followed by option number 2 If necessary.
For Office Use Only________________Received Stamp Deemed Approved Date
Date Approved
Date Notification Sent
Total Value of Credit Approved
Approved for Recording by Mining Recorder (Signature)
Ontario Ministry ofNorthern Developmentand Mines
Statement of Costs for Assessment Credit
Transaction Number (office use)
c oco-51Personal information collected on this form is obtained under the authority of subsection 6 (1) of (he AssessmeofyVork RfOu|a(#h 6/96. Under sectiqrr 8 of the Mining Act, this information is a public record. This information will be used to review the assessment work and^fiprresporjcfwitH t|fe mining land hdldjr. Questions about this collection should be directed to a Provincial Mining Recorder, Ministry of Northern Development and Mines, 3rd Floor, 933 Ramsey Lake Road, Sudbury, Ontario, P3E 6B5.
5 DETAILWork Type
Units of workDepending on the type of work, list the number of hours/days worked, metres of drilling, kilometres of grid line, number of samples, etc.
Cost Per Unit of work
Total Cost
* J f* .O.g^^^^y Ay/IP,s 2-73
tt fi ji w^* -j s *~AA*4t?f /T ^T..?. ^j * f *" r f /^ J ̂ O ^Vj^1 ' r t *F j* j O ' *S &V ooX sr b* ys s? srns /.s? K/* 1 9 1* o ,ao - o o
. f. f/ 2.~70O , 00•7300 .00
-G&-7300.00
Associated Costs (e.g. supplies, mobilization and demobilization).
wf/ry AWALyx/s t*j#z*-/ 2700,00'
Transportation Costs
Food and Lodging Costsc?pt P -^ f̂ o&t?
Total Value of Assessment Work
Calculations of Filing Discounts:
1. Work filed within two years of performance is claimed at 100^0 of the above Total Value of Assessment Work.2. If work is filed after two years and up to five years after performance, it can only be claimed at 50"Xo of the Total
Value of Assessment Work. If this situation applies to your claims, use the calculation below:
TOTAL VALUE OF ASSESSMENT WORK v. 0 .50 = Total S value of worked claimed.
Note:- Work older than 5 years is not eligible for credit.- A recorded holder may be required to verify expenditures claimed in verification and/or correction/clarification. If verification and/or correction or part of the assessment work submitted.
ts within 45 days of a request for le Minister may reject all
MAYCertification verifying costs:
l, t l*oyD (^ f).
2000
-f do hereby certify, that the a •OO CM rate as may reasonably(please print full name)
be determined and the costs were incurred while conducting assessment work on the lands indicated on the accompanying
Declaration of Work form as(recorded holder, agent, or state company position with signing authority)
l am authorized to make this certification.
0212(03/97)
Signature Date
Ministry of Ministers duNorthern Development Developpement du Nordand Mines et des Mines Ontario
Geoscience Assessment Office 933 Ramsey Lake Road
September 11, 2000 6th FloorSudbury, Ontario
LLOYD GEORGE DAVID THOMPSON P3E 6B5R.R. #3TWEED, Ontario Telephone: (888) 415-9845KOK-3JO Fax: (877)670-1555
Visit our website at: www.gov.on.ca/MNDM/MINES/LANDS/mlsmnpge.htm
Dear Sir or Madam: Submission Number: 2 .20360
Status Subject: Transaction Number(s): W0090.00051 Deemed Approval
We have reviewed your Assessment Work submission with the above noted Transaction Number(s). The attached summary page(s) indicate the results of the review. WE RECOMMEND YOU READ THIS SUMMARY FOR THE DETAILS PERTAINING TO YOUR ASSESSMENT WORK.
If the status for a transaction is a 45 Day Notice, the summary will outline the reasons for the notice, and any steps you can take to remedy deficiencies. The 90-day deemed approval provision, subsection 6(7) of the Assessment Work Regulation, will no longer be in effect for assessment work which has received a 45 Day Notice. Allowable changes to your credit distribution can be made by contacting the Geoscience Assessment Office within this 45 Day period, otherwise assessment credit will be cut back and distributed as outlined in Section #6 of the Declaration of Assessment work form.
Please note any revisions must be submitted in DUPLICATE to the Geoscience Assessment Office, by the response date on the summary.
If you have any questions regarding this correspondence, please contact LUCILLE JEROME by e-mail at [email protected] or by telephone at (705) 670-5858.
Yours sincerely,
ORIGINAL SIGNED BYSteve B. BeneteauActing Supervisor, Geoscience Assessment OfficeMining Lands Section
Correspondence ID: 15204
Copy for: Assessment Library
Work Report Assessment Results
Submission Number: 2 .20360
Date Correspondence Sent: September 11, 2000 Assessor:LUClLLE JEROME
Transaction First Claim Number NumberW0090.00051 1077464
Section:14 Geophysical MAG 12 Geological GEOL 14 Geophysical GRAV 18 Other OTHER
Township(s) l Area(s) MADOC
StatusDeemed Approval
Approval DateAugust 27, 2000
Correspondence to:Resident Geologist Tweed, ON
Assessment Files Library Sudbury, ON
Recorded Holder(s) and/or Agent(s):LLOYD GEORGE DAVID THOMPSON TWEED, Ontario
Page: 1Correspondence ID: 15204
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