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File Created: 02-Feb-1996 by Maurice Colpron (MC)
Last Edit:  07-Feb-1996 by Maurice Colpron (MC)

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NMI
Name ICE Mining Division Revelstoke
BCGS Map 082M059
Status Showing NTS Map 082M09E
Latitude 051º 33' 34'' UTM 11 (NAD 83)
Longitude 118º 20' 57'' Northing 5712903
Easting 406474
Commodities Gold Deposit Types * : Unknown
Tectonic Belt Omineca Terrane Kootenay
Capsule Geology

The Ice showing was discovered in 1989 during a regional exploration program conducted by Bethlehem Resources Corporation and Goldnev Resources Inc. Numerous, subangular massive pyrrhotite boulders up to 0.5 metre square are dispersed along the north wall of a cirque at 2500 metres elevation. The southern margin of the Goldstream pluton crops out in the cliffs immediately to the north. A single grab sample consisting of chips from five of these boulders returned 6.23 grams per tonne gold, 3.23 grams per tonne silver, 540 parts per million copper and 96 parts per million zinc (Fieldwork 1994, page 235). These values compare well with those reported by Gibson (1989).

Polished thin section studies by J. Payne of Vancouver Petrographics Ltd. describe the sulphide sample as a fine-grained skarn dominated by pyrrhotite with interstial grains of diopside and lesser plagioclase. Chalcopyrite, minor bismuth minerals and traces of arsenopyrite and electrum occur mainly in patches and fractures in diopside (Gibson, 1989).

Massive pyrrhotite, with similar gold grades to those reported here, has been discovered in place during the summer of 1994, in the cliffs above the boulder train. The massive pyrrhotite layer is 1 to 2 metres thick and exposed along strike for over 5 metres in a north-northeasterly direction. Analysed samples returned up to 7.5 grams per tonne gold and elevated copper, bismuth and tungsten (Fieldwork 1994, page 235). The layer is hosted by a pelitic calcareous pendant in the Goldstream pluton.

Boulders from the Ice showing have low base metal values, but their source is an interesting target due to the elevated gold values which are unknown in the other copper-zinc volcanogenic massive sulphide deposits of the area, except perhaps at the J&L, about 25 kilometres to the south.

Bibliography
EMPR ASS RPT 19580
EMPR FIELDWORK *1994, pp. 215-241
EMPR OF 1995-2

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