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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Apr-2012 by George Owsiacki (GO)

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NMI 103P11 Zn5
Name STANDARD, ALAMOSA Mining Division Skeena
BCGS Map 103P053
Status Showing NTS Map 103P11W
Latitude 055º 30' 44'' UTM 09 (NAD 83)
Longitude 129º 25' 09'' Northing 6151873
Easting 473529
Commodities Zinc, Silver, Lead Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Standard showing is located on the south slope of Wilauks Mountain, about 5.5 kilometres east-northeast of Alice Arm. The area has been explored for zinc mineralization since 1916.

The region is underlain by an assemblage of volcanics and sediments comprising the Upper Triassic Stuhini Group, the Lower Jurassic Hazelton Group and the Middle Jurassic to Upper Cretaceous Bowser Lake Group. This assemblage has been folded into a north-northwest trending anticline (Mount McGuire anticline) and regionally metamorphosed to greenschist facies.

The showing consists of a flat lying quartz-carbonate vein hosted in Stuhini Group argillite that has been traced along strike for 18 metres. Locally, breccia fragments of the argillite have been incorporated in the vein. Mineralization consists of disseminations, blebs, veinlets and bands of sphalerite up to 0.6 metre thick, and minor galena. Sphalerite comprises 10 to 20 per cent of the vein, with estimated grades from 5.0 to 10.0 per cent zinc (Minister of Mines Annual Report 1949, page 80). A selected grab sample of the vein assayed 48 per cent zinc and 21 grams per tonne silver (Minister of Mines Annual Report 1918, page 69).

Two other showings to the south, 3 to 4.6 metres wide, host disseminated galena in quartz. All three showings are aligned in a northwest direction extending for a distance of 122 metres.

Bibliography
EMPR AR 1916-65; *1918-69; 1922-62; 1923-61; 1925-73,74; 1926-78; 1927-72; *1949-76-80; 1966-47,48; 1967-43
EMPR ASS RPT *11070, 20398
EMPR BULL 63
EMPR FIELDWORK 1985, pp. 219-224; 1988, pp. 233-240; 1990, pp. 235-243
EMPR MAP 8
EMPR OF 1986-2; 1994-14
EMPR PF (Quinn, H.A. (1966): Report)
EMR MP CORPFILE (Mayfair Moly Mines Ltd.)
GSC MAP 307A; 315A; 1385A
GSC MEM 175, pp. 52,80
GSC OF 864
GCNL #196, 1982
W MINER March 1967

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