MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 092C 053

File Created:	24-Jul-1985	by	BC Geological Survey (BCGS)
Last Edit:	10-Jan-1991	by	Dorthe E. Jakobsen (DEJ)

SUMMARY

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		NMI
Name	PETERSON	Mining Division	Victoria
		BCGS Map	092C098
Status	Showing	NTS Map	092C16W
Latitude	048º 55' 23''	UTM	10 (NAD 83)
Longitude	124º 27' 35''	Northing	5419929
		Easting	393069
Commodities	Copper	Deposit Types
Tectonic Belt	Insular	Terrane	Overlap Assemblage, Wrangell

Capsule Geology

The Peterson occurrence is located near the northwest end of Cowichan Lake, 91.44 metres above the lake.

The area is underlain by volcanic rocks of the Upper Triassic Karmutsen Formation, Vancouver Group and of the Lower Jurassic Bonanza Group and sediments of the Upper Cretaceous Comox Formation, Nanaimo Group.

A narrow seam in the face of a cliff contains a small amount of chalcopyrite. The seam is hosted in highly altered and shattered shale of the Comox Formation which is cut by fine-grained igneous dykes.

A 4.6 metre tunnel has been driven northeast from the seam along a fissure in the rock. The shattered rock in the roof of the tunnel and the overhanging cliff makes the workings dangerous. No mineralization was observed in the workings.

A sample from a small pile at the tunnel mouth assayed 1 per cent copper with traces of gold and silver (Minister of Mines Annual Report 1906 p. 213).

Bibliography

EMPR AR *1906-213

EMPR BULL 37

EMPR FIELDWORK 1977, p. 23; 1986, pp. 223-229; 1987, pp. 81-91; 1989, pp. 503-510

EMPR MP MAP 1992-2

EMPR OF 1987-2; RGS 24, 1990

EMPR PF (In General File: B.C. Forest Products Road Map, Cowichan Lake Area, 1963)

GSC MAP 1386A

GSC MEM 13

GSC OF 463; 821; 1272

GSC P 69-25; 72-44; 76-1A; 79-30

CJES Vol. 15 No. 3 1978, pp. 405-423

Carson, D.J.T. (1968): Metallogenic study of Vancouver Island with emphasis on the relationships of mineral deposits to plutonic rocks, Ph.D. Thesis, Carleton University

McGugan, A. (1962): Upper Cretaceous Foraminiferal zones, Vancouver Island in Journal of the Alberta Society of Petroleum Geologists