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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  24-Feb-2023 by Garry J. Payie (GJP)

Summary Help Help

NMI
Name LIN 22 Mining Division Fort Steele
BCGS Map 082G009
Status Showing NTS Map 082G01W
Latitude 049º 02' 28'' UTM 11 (NAD 83)
Longitude 114º 16' 13'' Northing 5435615
Easting 699485
Commodities Copper, Silver, Uranium Deposit Types E04 : Sediment-hosted Cu
Tectonic Belt Foreland Terrane Ancestral North America
Capsule Geology

The Lin 22 occurrence is located on a northwestern spur of Starvation Peak, at an elevation of approximately 2500 metres.

The area is underlain by quartzite, siltstone, argillite, and dolomitic carbonate rocks of the Mesoproterozoic (Helikian) Creston and Kitchener formations (Purcell Supergroup). Much of the host stratigraphy was historically reported as Grinnell Formation.

Locally, stratabound chalcopyrite, bornite, and chalcocite mineralization, consisting of fine disseminations and blebs (1 to 3 millimetres), are confined to quartzite beds, previously identified as being of the middle Proterozoic (Helikian) Upper Grinnell Formation. The best mineralized beds are traceable laterally for a couple of thousand metres with interruptions, and may reach up to 10 per cent sulphides over several centimetres. Malachite is widespread at surface and to a depth of approximately 1 metre. The thickness of the mineralized horizons rarely exceeds 1 metre.

Samples from the Lin 20 (082GSE011) to 22 claims are reported to have yielded up to 0.3 per cent copper and 14 grams per tonne silver (Property File - unknown [unknown]: Geological Sketch Map of Clark Range and locations of principal stratabound mineral occurrences - SE BC).

Where there is enrichment of copper sulphides, radiometric surveys indicate anomalous radioactivity, possibly from uranium enrichment. Radiometric prospecting indicates anomalous readings in the range of 10,000 to 23,000 counts per minute coincidental with areas of stronger sulphide enrichment. Background is approximately 2500 counts per minute with a McPhar TV-1A spectrometer. Trace amounts of molybdenum are also reported to be associated.

The Lin claims were staked in late 1969 by the Goble family (Kintla Exploration Limited) and optioned to Falconbridge Nickel Mines Limited. In 1970, Falconbridge completed a program of geological mapping on the area as the Lin claims. The claims were located from Kishinena Creek south to Starvation Peak. In 1974 or 1975, four short diamond drill holes, totalling 95.4 metres, were completed on the Lin 21 claim (082GSE049) (Assessment Report 5694). In 1975, Aquitaine Co. of Canada Ltd. completed a program of regional geochemical sampling, geological mapping and prospecting in the area. In 1975, the Goble family (Kintla) reported that they discovered uranium in the red beds of the Grinnell Formation, and in some of the copper bearing beds of the GrinnelI Formation. In 1977 a preliminary, radiometric survey was conducted on the Lin Claims. In 1978 a more detailed examination was undertaken, and radiometric work was also carried out on the Opal claims between Starvation Creek and the Montana border (Assessment Report 7678).

Bibliography
EMPR ASS RPT *2703, 5694, 6521, 7678
EMPR EXPL *1975-E40; 1977-E55; 1979-75
EMPR GEM 1970-478
EMPR PF (*Geological Sketch Map of Clark Range and locations of principal stratabound mineral occurrences - SE BC; Surveys and Mapping Branch [unknown]: Topographic Map - 82G/1 - Sage Creek with annotations; S.H. Pilcher [1969-11-13]: Mineralization in Grinnell Formation)
GSC MEM 336
GSC Open File 7476
GSC P 61-24

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