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File Created: 06-May-1986 by Gary R. Foye (GRF)
Last Edit:  09-Jul-2009 by Sarah Meredith-Jones (SMJ)

Summary Help Help

NMI 093E2 Cu1
Name TETRAHEDRITE, AT Mining Division Omineca
BCGS Map 093E017
Status Showing NTS Map 093E02E
Latitude 053º 06' 38'' UTM 09 (NAD 83)
Longitude 126º 38' 49'' Northing 5887156
Easting 657498
Commodities Silver, Copper Deposit Types L01 : Subvolcanic Cu-Ag-Au (As-Sb)
I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

Geological Survey of Canada maps indicate the area is mainly underlain by Jurassic Hazelton Group volcanics. A siliceous, crudely banded vein with a maximum exposed width of about 15 centimetres occurs in andesites and can be followed for 36 metres. The vein contains tetrahedrite, which normally occurs in a thin layer in the central part of the vein. The surrounding andesites carry disseminated chalcopyrite and azurite.

Four showings are present on the property: the main zone, the low-grade zone, the barite vein and the tetrahedrite zone. The main and low-grade zones consist of disseminated chalcopyrite and azurite. Assays taken along the main zone returned 1.5 per cent copper over 16.8 metres. Assays, covering an area of 3150 square metres, on the low-grade zone varied from 0.5 to 0.1 per cent copper (Property File Cyprus Anvil Meteor Mining Co. Ltd., 1966). The barite vein can be traced for 60 metres and is between 3 to 12.5 centimetres wide. The vein contains a mixture of barite, chalcocite, chalcopyrite, minor galena and a buff coloured siliceous material. The tetrahedrite zone is exposed to the east of the main workings. A chip sample taken from the tetrahedrite zone returned 1,930 grams per tonne silver and 5.10 per cent copper over 1.05 metres and another grab sample assayed at 4,460 grams per tonne silver (Property File Cyprus Anvil Meteor Mining Co. Ltd., 1966).

The AT claims were staked in 1964 by Meteor Mining Company Limited and geochemical and geomagnetic surveys were performed the following year. Trenching and sampling were performed on anomalous areas in 1966.

Bibliography
EMPR AR 1919-38; 1923-44; 1924-44; *1926-150; *1966-117
EMPR OF 1994-14
EMPR PF Cyprus Anvil (Pavelic, N., Chisholm, E.O. (1967-02-22): Property Submission: Port Hardy and Tesla Mountain; Meteor Mining Co. Ltd. (1966-01-05): Property Submission: Port Hardy and Tesla Mountain, Propectus Meteor Mining Co. Ltd.)
GSC MAP 1064A
GSC MEM 299, p. 100
GSC OF 708
GSC P 72-1A; 79-1A
GSC SUM RPT 1920, part A

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