MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 104B 276

File Created:	15-Jul-1988	by	Garry J. Payie (GJP)
Last Edit:	24-Mar-2022	by	Nicole Barlow (NB)

SUMMARY

Summary Help


		NMI
Name	TEDRAY 12	Mining Division	Skeena
		BCGS Map	104B049
Status	Showing	NTS Map	104B08E
Latitude	056º 29' 14''	UTM	09 (NAD 83)
Longitude	130º 13' 32''	Northing	6260981
		Easting	424531
Commodities	Gold, Silver, Copper, Iron	Deposit Types	I02 : Intrusion-related Au pyrrhotite veins G04 : Besshi massive sulphide Cu-Zn I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt	Intermontane	Terrane	Stikine

Capsule Geology

The area is underlain by rock of the Lower Jurassic Unuk River Formation, Hazelton Group. These rocks consist of mixed sedimentary rocks overlain by volcanics of andesitic composition. The Brucejack fault and associated splay faults cut the country rock in a north-south to northwest direction. North of Brucejack Lake, the fault system is bounded on the east by rocks of the Lower Jurassic Betty Creek Formation, Hazelton Group. A variety of Jurassic hornblende syenite and alkali feldspar syenites occur in the area.

Chalcopyrite, magnetite and arsenopyrite occur in an area comprised of siltstone (Newmont Exploration Ltd., Geology Map-Property File). The arsenopyrite occurs in a vein about 200 metres south of the chalcopyrite-magnetite showing. Grab samples of the vein assayed 12.34 grams per tonne gold and 7.89 grams per tonne silver (Bridge et al, 1981).

The character of the copper-iron showing is not documented.

Bibliography

EMPR ASS RPT 36214, 39314

EMPR BULL 63

EMPR FIELDWORK 1987, pp. 199-209

EMPR OF *1988-4

EMPR PF (*Bridge, D.A., Ferguson, L.J., Brown, M.G. (1981): 1980 Exploration Report on the Sulphurets Property for Esso Minerals Canada Ltd. (unpublished), p. 49; Geology Map-1:31250 scale, Newmont Exploration of Canada Ltd., 1960's)

GSC MAP 9-1957; 1418A

GSC P 89-1E, pp. 145-154

Kirkham, R.V., (1963): The Geology and Mineral Deposits in the Vicinity of the Mitchell and Sulphurets Glaciers, M.Sc. Thesis, University of British Columbia

Simpson, T.M., (1983): The Geology and Hydrothermal Alteration of the Sulphurets Deposits, Northwest British Columbia, M.Sc. Thesis, University of Idaho

Armstrong, T.A. (2010-01-14): Technical Report and Resource Estimates on the West, Bridge, Galena Hill, Shore, SG & Gossan Hill Gold & Silver Zones of the Brucejack Property

Ghaffari, H. (2010-09-10): Technical Report and Preliminary Assessment of the Snowfield-Brucejack Project

Ghaffari, H. (2010-10-28): Technical Report and Preliminary Assessment of the Snowfield-Brucejack Project

Armstrong, T.A. (2011-03-04): Technical Report and Updated Resource Estimate on the Brucejack Property

Armstrong, T.A. (2011-04-04): Technical Report and Updated Resource Estimate on the Snowfield-Brucejack Property

Ghaffari, H. (2011-06-03): Technical Report and Preliminary Economic Assessment of the Brucejack Project

Armstrong, T.A. (2012-01-12): Technical Report and Resource Estimate on the Brucejack Property

Ghaffari, H. (2012-02-20): Technical Report and Updated Preliminary Economic Assessment of the Brucejack Project

Pretium Resources Inc. (2020-03-09): Technical Report on the Brucejack Gold Mine, Northwest British Columbia

EMPR PFD 802722, 802725, 802726, 802729, 802738, 803196, 803217, 803229, 803410, 803412, 803432, 803438, 803637, 803660, 803661, 803663, 803665, 803666, 803672, 803718, 803730, 803762, 803769, 804018, 804028, 804116, 804200, 804214, 804267, 804284, 803897, 803914, 803917, 803919, 803947, 803980, 804090, 804112