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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  25-Feb-1986 by Larry Jones (LDJ)

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NMI 082M8 Cu1
Name STANDARD BASIN, STANDARD Mining Division Revelstoke
BCGS Map 082M039
Status Prospect NTS Map 082M08E
Latitude 051º 23' 05'' UTM 11 (NAD 83)
Longitude 118º 14' 44'' Northing 5693345
Easting 413326
Commodities Copper, Silver, Gold, Zinc, Talc, Asbestos Deposit Types G04 : Besshi massive sulphide Cu-Zn
M06 : Ultramafic-hosted asbestos
M07 : Ultramafic-hosted talc-magnesite
Tectonic Belt Omineca Terrane Kootenay
Capsule Geology

The Standard property, on Standard Peak, is 41 kilometres north of Revelstoke in the Selkirk Mountains, northeast of the Columbia River. The property has been worked discontinuously since 1896 as a copper-silver-zinc-gold prospect.

Ultramafic pods lie in a metasedimentary phyllite unit, within the upper Index Formation of the lower Paleozoic Lardeau Group (Geological Survey of Canada Paper 83-1A). The pods, consisting of coarse-grained, brown weathering talc-chlorite-serpentine-dolomite, are repeated as part of the Standard anticline. The anticline consists of metamorphosed volcanics and sediments, crystalline limestone, pyritic graphitic schists, grey sericite schists and hornblende-feldspar-chlorite schists.

Massive sulphide mineralization, consisting of a series of layers and lenses of massive pyrrhotite and pyrite with minor chalco- pyrite and sphalerite, is most dominant within the greenstones on both sides of the Standard antiform. On the east limb, mineralization can be traced intermittently through a strike length of 1500 metres. Drill holes have intersected massive sulphide sections from 0.2 to 2 metres thick.

Talc occurs admixed with carbonate and serpentine, sometimes with chrome-mica veining, along broad zones of alteration in greenstone. In the No. 2 and No. 3 adits "pure", light green talc is reported to occur in shears in serpentine, along with a lesser amount of slip- fibre asbestos.

A grab sample of massive fine-grained pyrite and chalcopyrite assayed 1 gram per tonne gold, 29 grams per tonne silver, 0.84 per cent zinc and 9.98 per cent copper (Geology in British Columbia, 1976 p. 36).

EMPR AR 1898-1059; 1899-671; 1900-809; 1901-1016; 1902-139,190; 1904-115; 1905-151; 1906-137,252; 1907-218; 1912-144; 1917- 181; 1919-150; *1921-155-156; 1926-155
EMPR ASS RPT *6070, *6187, 11140
EMPR BULL 71, pp. 27-31, 41-45, Fig. 2
EMPR EXPL 1976-66; 1977-95-96
EMPR FIELDWORK 1976, pp. 17-22
EMPR GEOL *1976, pp. 36-40
EMPR OF 1988-19; 1995-25; 1999-2
EMPR PF (Hughes, B.B. (1977): Summary of Drilling Done on the Standard Property)
GSC MAP 12-1964; 237A
GSC OF 481
GSC P 64-32; 83-1A, pp. 203-206
GSC SUM RPT 1928, Part A, pp. 162-165
Hoy, T., Gibson, G. and Berg, N.W., 1984 (EG V. 79, No. 5, pp. 789, 792,796,799-800)
Placer Dome File