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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  14-Nov-1995 by Craig H.B. Leitch (CHBL)

Summary Help Help

NMI
Name GOLD BASIN, GERMAN BASIN Mining Division Nelson
BCGS Map 082F047
Status Prospect NTS Map 082F07E
Latitude 049º 25' 18'' UTM 11 (NAD 83)
Longitude 116º 40' 04'' Northing 5474385
Easting 524094
Commodities Lead, Copper, Tungsten, Gold, Silver Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
I12 : W veins
I02 : Intrusion-related Au pyrrhotite veins
Tectonic Belt Omineca Terrane Ancestral North America
Capsule Geology

The German (Gold) Basin showing is located at 2133 metres elevation high on the ridge between Sanca and Akokli creeks, just west of the summit of Mount Sherman. The location of the vein is shown on a map in Assessment Report 17527, located within an east-west shear following the almost vertical south wall of a cirque basin a little over 6 kilometres almost due east of Columbia Point on Kootenay Lake. The vein was discovered in the late 1800s and re-explored in 1987 to 1989 by Dobrana Resources Ltd.

The showing consists of a quartz vein in granite to granodiorite of the middle Cretaceous Bayonne batholith, close to its eastern contact with sedimentary rocks of the Creston Formation (Middle Proterozoic Purcell Supergroup, mapped here as argillaceous quartzites). The vein dies out where it passes into the sedimentary rocks. The vein strikes roughly north and dips about 30 degrees west; the old workings consist of a long adit driven just above the floor of the basin and a shorter adit higher up the cliff face, as well as numerous opencuts on top of the ridge; several raises to surface from the adits are reported. The vein was exposed on surface for about 100 metres strike length, where it occupies a strong fracture in the granite hostrock and varies from 1 to 2.5 metres thick. The quartz is milky white and contains scattered galena, chalcopyrite and pyrite; some orange-yellow scheelite is present. Gold values are reported associated with the sulphides, which occur in irregular bands, patches and clustered in vugs, commonly along the margins of the vein. There is slight chloritization and sericitization of the wallrock, accompanied by disseminated pyrite. Assays by Dobrana Resources Ltd. on quartz vein material ranged up to 39.7 per cent lead, 366 grams per tonne silver and 3.4 grams per tonne gold (Assessment Report 17527).

Bibliography
EM FIELDWORK 1999, p. 214,225-236
EM OF 1999-3; 2000-8
EMPR ASS RPT *10811, *17527, 19214
EMPR OF 1991-17, 1999-3
EMPR PF (Report on the Totem Gold Property by I. Borovic, 1993 in Prospectus, Dobrana Resources Ltd., Nov. 1993)
GSC MEM 228, p. 67
GSC OF 929; 2721
GSC P 38-17, p. 11
EMPR PFD 2613

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