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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  14-Apr-2015 by Garry J. Payie (GJP)

Summary Help Help

NMI 093L9 Cu5
Name TACHEK MOUNTAIN, TAC Mining Division Omineca
BCGS Map 093L069
Status Showing NTS Map 093L09E
Latitude 054º 37' 25'' UTM 09 (NAD 83)
Longitude 126º 09' 38'' Northing 6056625
Easting 683315
Commodities Copper, Silver, Gold Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine, Plutonic Rocks
Capsule Geology

The Tachek Mountain showing is hosted within a large Late Triassic intrusion located northeast of Tachek Mountain. The granodioritic stock intrudes Lower Jurassic Hazelton Group (Saddle Hill Foramtion andesitic tuffs and flows.

Locally, the granodioritic intrusive shows slight mineralization comprised of chalcopyrite and pyrite. The granodiorite is crosscut by a dioritic dike up to 0.7 metre in width. Both walls of the dike contain a few centimetres of breccia cemented with quartz and mineralized with chalcopyrite. In 1932, a selected sample assayed 0.68 gram per tonne gold and 2.7 grams per tonne silver (Minister of Mines Annual Report 1932, page 85).

In 1998, anomalous metals were detected in the principle drainage west of lake 2044. The anomalous metals can be traced over a distance of 1800 metres to the exit stream of the lake where they measure over 500 parts per million zinc (Assessment Report 25826). In 1998, sulphide-bearing float consisting of felsic intrusive rock dominated by pink feldspars was found in the lake 2044 area (Tac claims). The float sample hosted a stockwork of quartz veins with associated galena and minor chalcopyrite.

Work History

Mister L. Bartholomew prospected this area for a number of years in the early 1930s; no claims were staked.

In 1986 results of a regional geochemical reconnaissance survey (Geological Survey of Canada Open File 1361) which included lake sediments was released. A center lake sediment sample taken from lake 2044 was anomalous in zinc, lead, silver and cadmium.

In October 1997 a follow up geochemical survey was conducted by S. Bell around "lake 2044". The survey tested drainages leading to the lake. Sediments from two streams entering the lake had anomalous levels of zinc, lead, copper and cadmium. A western source direction was indicated. In November 1997 claims were staked by S. Bell to cover most anomalous drainages about "lake 2044".

In January 1998 results of a regional lake sediment survey of the Babine porphyry belt were released (British Columbia Geological Survey Branch Open File 1997-17). Lake 2044 was featured as having the highest single sediment zinc concentration and the second highest lead concentration. Silver, gold and cadmium were also anomalous.

In 1998 a geochemical survey was conducted by Steve Bell over his Tac claim group where 221 samples collected analyzed for base metal and pathfinder elements. Soils near the lake were tested and a detailed survey of the most anomalous drainage was performed.

EMPR AR 1932-85
EMPR OF 1997-17; 2001-03
EMPR PF Placer Dome (Cobre Exploration Ltd. (1981): Cobre Exploration Ltd., Developing Richfield Gold-Silver Mine in central BC; F.B. Whiting (1981): The Richfield, Gold-Silver-Lead-Zinc Property; Prospectors Report 1999-8 by Steve Bell)
GSC OF 351, 1361