Rail Lake Copper Property (WB Claims) G.M. Depaoli, B.Sc. Geophysicist J.F. ALl.an, P.Eng. (B.C.! July 1973

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1 1973 Geophysical Report TITLE AUTHORS DATE, COI"4ODITY LOCATION-A rea -Mining Division -Coordinates -NTS Rail Lake Copper Property (WB Claims) GM Depaoli, BSc Geophysicist JF ALlan, PEng (BC! July 1973 cu Lac La Hache Clinton 51 58'N Latitude, 121"27'w Longitude 92 P 14 AMAX VANCOWER OFFICE +55g : MAP :- I NO I I -

2 / TABLE OF COJ!J? ENTS - APPENDIX I - Statement of Costs,--

3 r S UiWii RY A ground magnetometer survey was completed on the Rail Lake Copper Property during the period June 14 to 22, 1973 A contoured presentation of the measurements obtained reveals two large magnetic anomalies The southernmost anomaly reflects the highest susceptibility and its extent has not been completely defined To date no outcrop exposure has been discovered on the property, however near surface concentrations of magnetite are anticipated /-- I NTRODLJCT ION The Rail Lake Copper Property consists of twenty-one mineral claims owned by P,ma)r Potash Limited During the period June 9 to June 22, 1973 twelve miles of line cutting and ten miles of ground magnetometer surveying was completed on the property The following report describes the instrumentation,' field procedure and results obtained from the survey Location and Access The property is located within the Interior Plateau of south-central' British Columbia, ten miles north of Lac La Hache It is accessible by a two wheel drive vehicle via the Spout Lake gravel road It lies in the Clinton Mining Division at 51"58'N latitude and 121'27'W longitude (see Figure 1) Grid Control The control grid consists of 123 miles of cut, chained and picketed lines The central baseline, which skirts the eastern edge of a large meadow, strikes north 40" west and is cut froin the Spout Lake road to the Coranex access road The total length of the baseline is over 14,000 feet however, O+OO is located at the northern edge of the laige meadow Starting from this origin and proceeding southerly a total of eighteen cross lines have beer! cut and picketed at 400 foot intervals

5 AMAX POTASH LAKE COPP W B CLAIMS

6 The cross lines are only cut on the east side of the 'baseline and they all extend for 2600 feet (see Figure 3) GENERAL GEOLOGY To date no outcrop exposures have been located on the property In a regional sense the property is near the contact of Nicola Group rocks and overlying Tertiary plateau basalts I I r MAGhJ TOMETER SURVEY Introduction and Theory A ground magnetometer survey was initiated in order to further define and accurately locate an intense aeromagnetic anomaly visible on aeromagnetic map sheet 92 P 14 Because of the lack of exposure it was also hoped that the results of the survey would aid in the interpretation of structural trends The magnetism of a11 rocks is controlled by their content of ferromagnetic material, ie substances possessing a relatively high susceptibility and capable of acquiring permanent magnetization Often skarn mineral assemblages include considerable amounts of the mineral magnetite, intensity magnetic anomalies may therefore be used as an indicator of skarn environments Instrument and Procedure The instrument employed was the Model G-816 High portable Proton Magnetometer, manufactured by Geometrics of 914 Industrial Avenue, Palo Alto, California This proton free precession magnetometer operates on the principle of nuclear magnetic - resonance to produce a measurement of the total magnetic intensity of the earth's field The instrument is comprised of a console with 12 size "D" flashlight batteries, 25 kg (55 pounds) ; sensor and signal cable 18 kg (4 pounds) and an aluminui-(2 staff 09 ky (2 poun~s), Because of the anticipated

7 3 order of magnitude of the anomalies, the sensor was carried in the back pack rather than on the staff Values are obtained from a digital display read-out and operating temperatures are from -4OOC to 85OC Coordinates 41+00S, O+OOE on the baseline were selected as the datum value for the survey The baseline was surveyed north from this point at 100 foot intervals to station 04-OOS, O+OOE and then resurveyed back to the starting position Special care was observed on cross line intersections and corrections were made for the diurnal variation fashion magnetic reference points were obtained for the remaining southern portion of the baseline In a similar The north-east oriented cross lines were then surveyed at 100 foot station intervals and diurnal corrections were calculated from the baseline reference points Corrected values were plotted on a scale of 1"=400 feet and are presented in Figure 3 f- liesults an2 3iscussion The data was contoured employing a 1009 gainnia contour interval and the resulting magnetic patterns are displayed in Figure 3 pattern Two large magnetic anomalies dominate the isomagnetic The northern anomaly has a strike length of 3500 feet and a maximum width of 1000 feet on cross line 24 south source of this anomaly is interpreted to be at a depth of greater than 200 feet below ground surface The Because of the broad nature of the anomaly one might expect a highly susceptible rock type containing up to 3% magnetite The southern anoinaly has not been completely defined and is still on the ecge of the map sheet This feature on cross lj-nz 56 south c?p;?ears very intense and quite narrow might interpret the source to be a near surface concentration One c

8 f- of magnetite Further grid lines are necessary to coinplctely define the southern limit of this anomaly July 1973 af-* GM DePaoli, 33S~ n JF Allan, PEng (BC) c

9 RAIL LAKE - Amax Potash Limited r APPENDIX I STATEMENT OF COSTS Record Number Claim Number Due Date Green GrouD WB 2 July 22, WB 4 July 22, WB 6 July 22, WB 8 July 22, WB 10 July 22, incl WB incl July 22, WB 18 July 22, WB 20 July 22, WB 22 July 22, WB 24 July 22, WB 26 July 22, incl WB incl July 22, WB 32 July 22,1973 Period of Work - June 9, 1973 to June 22, 1973 Summary of Work - Cut and Chained Picket Line - 12 line m iles - Magnetometer Survey - 10 line miles S Personnel CJ Hodgson Thurlow Street, Vancouver 5, BC Geologist 2 $6500/day $ GM DePaoli Thurlow Street, Vancouver 5, BC Geophysicist 5 days 0 $5400/day FJ Feryuson Thurlow Street, Vancouver 5, BC Geological Technician 5 $4300/day BW Munday - Box 54, Avola, BC Labourer 5 days 8 $2649/day Nick Sworyk - Box 235, Houston, BC Labourer 5 $2649/day TE Gilchrist Street, North Delta, BC Jr Assistant 2 $1710/day Peter Gutzman Laurelynn Drive, North Vancouver, BC Jr Assistant 4 days 8 $1710/day DD McLeod - Box 280 Enderby, BC Sr Assistant 4 $2649/day DS Brooks Cloverley Street, North Vancouver, BC Jr Assistant 3 $1796/day 5388 Board - 35 man Magnetometer Rental - Geometri-cs G-816 Vehicle $looo/day 7 $1500/day 14 $1000/day

10 9 b I -- Rail Lake Statement of Costs Paqe Two Report Preparation and Drafting $1,92459 The work is to be applied for one year on Green Group WB 2, 4, 6, 8, 10, 12-16, 18, 20, 22,

PHOENIX GEOPHYSICS LIMITED REPORT ON THE VLF-EM AND TOTAL FIELD MAGNETOMETER SURVEYS ON THE

PHOENIX GEOPHYSICS LIMITED REPORT ON THE VLF-EM AND TOTAL FIELD MAGNETOMETER SURVEYS ON THE TAN CLAIMS, CHILLIWACK AREA NEW WESTMINSTER MINING DIVISION, BRITISH COLUMBIA FOR LORNEX MINING CORPORATION LIMITED