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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  19-Jan-2006 by Laura deGroot (LDG)

Summary Help Help

NMI
Name VMS 1 Mining Division Revelstoke
BCGS Map 082K053
Status Prospect NTS Map 082K12E
Latitude 050º 34' 11'' UTM 11 (NAD 83)
Longitude 117º 35' 24'' Northing 5602144
Easting 458218
Commodities Lead, Zinc, Silver Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Omineca Terrane Kootenay
Capsule Geology

The VMS property is underlain by a northwest striking, moderately to steeply southwest dipping sequence of metasedimentary rocks of the Upper Mississippian to Permian Milford Formation near the northern margin of quartz monzonitic intrusive rocks of the Middle Jurassic Kuskanax batholith. The metasediments are predominantly blue-grey to black, graphitic phyllite and argillite with pyrite commonly found as streaks of very fine grained material paralleling bedding or foliation. Smaller amounts of light grey to dark grey quartzites, thinly laminated quartzitic siltstone and phyllitic quartzites occur in the black sequence. Minor bands of recrystallized, blue-grey limestone are found at various places within the light coloured quartzitic sequence. A series of highly deformed, biotite-quartz-feldspar schists and gneisses of the Cambrian to Devonian Lardeau Group also occur and contain bands of calcareous material (largely converted to marble or skarn). The marble is an extremely coarse mixture of calcite crystals and muscovite. The skarn is a dense, green-brown colour with garnet and tremolite or diopside and is frequently rusty weathering from contained pyrite and pyrrhotite. Numerous aplitic and felsic dikes intrude the metasediments and are probably genetically related to the Kuskanax batholith.

Near the northern boundary of the VMS 1 claim a quartz vein system is exposed in a large granodiorite dike that cuts a sequence of phyllite, argillite and quartzite. As exposed on surface the vein zone varies from 0.9 to 1.8 metres wide and usually consists of two quartz veins which may be as much as 0.6 metre wide each, with a 0.6 to 0.9 metre lens of highly altered rock between them. The quartz veins contain scattered lenses and grains of pyrite with lesser galena and minor sphalerite. A selected sample of galena-bearing quartz material from the surface showings assayed 0.34 per cent zinc, 2.94 per cent lead and 466.2 grams per tonne silver (Assessment Report 3804).

A tunnel about 76 metres long has been driven along the strike of the vein system (approximately 005 degrees) by hand-steeling and is estimated to be at least 40 years old (ca. 1972). The vein system could be seen intermittently in the back along the course of the tunnel but appears to be only 5 to 7 centimetres wide at the face.

The VMS claims were staked in 1971 on behalf of Pan Ocean Oil Ltd. to cover geochemically anomalous molybdenum values from reconnaissance prospecting. Work carried out in the same year consisted of prospecting, geological mapping and soil and rock sampling. In 1978, Newmont Mines Limited staked the TL and Ash claims to cover the showings and conducted geological mapping and silt and rock sampling in 1978 and 1979.

Bibliography
EMPR ASS RPT *3804, 7889, 7913
EMPR EXPL 1978-E82,E83
EMPR GEM 1972-78
EMPR BULL 45
GSC MEM 161
GSC OF 288; 432; 464; 481

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