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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  29-Apr-1991 by Laura L. Coughlan (LLC)

Summary Help Help

Name VIRGINIA (L.681) Mining Division Trail Creek
BCGS Map 082F001
Status Past Producer NTS Map 082F04W
Latitude 049º 05' 01'' UTM 11 (NAD 83)
Longitude 117º 47' 58'' Northing 5437058
Easting 441625
Commodities Gold, Silver, Copper Deposit Types L01 : Subvolcanic Cu-Ag-Au (As-Sb)
Tectonic Belt Omineca Terrane Quesnel, Plutonic Rocks
Capsule Geology

The Virginia vein is part of the "Main vein" system, of the Rossland mining camp, which forms a continuous well defined fracture system on a regional scale trending 70 degrees for a strike length in excess of 1.0 kilometre. The Virginia vein is a sulphide ore body which strikes east-west and dips steeply north and averages 7.6 metres in width.

The vein is hosted by the Rossland monzonite, an east-trending biotite-hornblende-augite monzonite stock. The stock intrudes augite porphyry and volcanic rocks of the Lower Jurassic Elise Formations, Rossland Group. The augite porphyry, known as the Rossland sill, intrudes the upper part of the Elise Formation.

Mineralization consists of pyrrhotite and chalcopyrite infilling fractures and/or faults. Gangue consists of altered wallrock with lenses of quartz and calcite. Pyrite occurs as crystals in the pyrr- hotite and as disseminations in the host rocks.

In 1899, 95 tonnes of ore were mined from the Virginia vein and 2395 grams gold, 1866 grams silver, and 943 kilograms copper were recovered.

Refer to the Le Roi deposit (082FSW093) for further details of the Rossland mining camp and the Main vein system.

EMPR AR 1896-15,22,561; 1897-537; 1898-1095; 1899-599,715; 1912-161; 1913-134; 1914-332; 1948-141
EMPR BULL 74; 109
EMPR FIELDWORK 1987, pp. 19-30; 1988, pp. 33-43; 1989, pp. 11-27; 1990, pp. 9-31
EMPR OF 1988-1; 1989-11; 1990-8; 1990-9; 1991-2; 1991-16
GSC MAP 1002; 1004; 1518; 1504A
GSC MEM *77, pp. 6,11,95,103,106
GSC P 79-26
CIM *Jubilee Volume, 1948, pp. 189-196
ECON GEOL Vol. 68, 1973, pp. 1337-1340
Hodges, L.K. (editor), (1897): Mining in the Pacific Northwest, page 121
Thorpe, R.I., (1967): Controls of Hypogene Sulphide Zoning, Rossland, British Columbia, Ph.D. Thesis, University of Wisconsin