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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  26-Mar-2022 by Nicole Barlow (NB)

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NMI 092J15 Au14
Name ALMA (L.2375), NEW ERA, SILVER BASIN, GRULL - WIHKSNE Mining Division Lillooet
BCGS Map 092J076
Status Prospect NTS Map 092J15W
Latitude 050º 47' 00'' UTM 10 (NAD 83)
Longitude 122º 50' 03'' Northing 5625744
Easting 511691
Commodities Gold Deposit Types I01 : Au-quartz veins
Tectonic Belt Coast Crystalline Terrane Cadwallader, Bridge River
Capsule Geology

A quartz vein occurs in a fissure paralleling Mississippian to Jurassic Bridge River Complex (Group) pelitic schists. The fissure dips opposite to that of the schist and forms along the contact of an albitite porphyry dyke, which has also been called "soda-granite" and is believed to be altered granodiorite related to the Cretaceous to Tertiary Bendor Intrusives (ie. a young phase of the Cretaceous Plutonic Complex). The porphyry intrusion comprises the hanging wall of the vein and is traversed by quartz stringers. The fissure contains abundant silicified fragments of the wallrock. The surrounding pelitic schist is pyritized. The quartz vein varies from several centimetres to 60 centimetres in width and contains scattered mariposite. Average assays grade 9.4 grams gold per tonne (Geological Survey of Canada Memoir 130, page 95).

EMPR AR 1933-A266; 1945-A85; 1946-A105
EMPR FIELDWORK 1974, p. 35; 1985, pp. 303-310; 1986, pp. 23-29; 1987, pp. 93-130; 1988, pp. 105-152; 1989, pp. 45-72; 1990, pp. 75-83
EMPR Inspections Branch File #202560
EMPR OF 1987-11; 1988-3; 1989-4; 1990-10
EMPR PF (J.S. Stevenson, unpub. thesis, 1947; Rpt. by V. Dolmage, 1945; Map - J.S. Stevenson-Grull Wihksne Gold Mine; Misc. Maps)
GSC MAP 430A, 431A
GSC MEM *213, p. 105; *130, p. 94
GSC OF 482
GSC P 43-15, 73-17
GSC SUM RPT 1915, p. 80
CJES 1987, Vol. 24, pp. 2279-2291
Talisker Resources Ltd. (2020-09-02): NI 43-101 Technical Report, Bralorne Gold Project, Bralorne, British Columbia, Canada