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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  15-Apr-2012 by Nicole Barlow (NB)

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BCGS Map 092F064
Status Showing NTS Map 092F11W
Latitude 049º 39' 59'' UTM 10 (NAD 83)
Longitude 125º 18' 17'' Northing 5504090
Easting 333694
Commodities Copper, Gold, Silver Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Heather occurrence is located in the headwaters of the Cruickshank River, approximately 23 kilometres west of Courtenay.

The area is primarily underlain by basalt of the Upper Triassic Vancouver Group, Karmutsen Formation which consists of flows, pillow breccia, aquagene tuff, and some thin sedimentary layers. This unit was intruded by a granodiorite stock of the Jurassic Island Intrusions and bodies of quartz diorite thought to be related to the Late Eocene to Early Oligocene Mount Washington Intrusive Suite (Massey, N., Personal Communication).

The North showing is located at the foot of a cliff and consists of a quartz-epidote altered zone of sheeted and braided fractures and seams which strike 075 degrees and dip close to vertical. The miner- alization comprises seams and veins of near massive chalcopyrite and some pyrite. Locally the vein widths range from 0.6 to 1.8 metres. A sample taken across 0.9 metres assayed 4.6 per cent copper, 0.17 gram per tonne gold and 15.43 grams per tonne silver (Assessment Report 2762).

The South showing, 120 metres to the southeast, is exposed in the floor and south wall of a deep, narrow gully and consists of a mineralized shear zone striking 070 degrees and dipping 80 degrees to the south. The principal exposure consists of 1.5 metres of strongly sheared and chloritized massive to porphyritic basalt containing pods, stringers and disseminations of pyrite, chalcopyrite, chalcocite, minor bornite, malachite and limonite. One 0.6 metre sample assayed 4.6 per cent copper, 1.54 grams per tonne gold and 28.80 grams per tonne silver (Assessment Report 2762).

EMPR FIELDWORK 1988, pp. 61-74
EMPR GEM 1970-282
EMPR PF (unknown (unknown): Report on Cruickshank prospect; McDougall, J.J. (1962-02-01): Report on Coast Exploration 1961 & Suggestions for Future Prospecting)
GSC MAP 2-1965; 17-1968; 1386A
GSC OF 463
GSC P 68-50; 72-44
PERS COMM Massey, Nick, Feb. 1990 (with respect to Tertiary intrusion nomenclature)
Carson, D.J.T. (1968): Metallogenic Study of Vancouver Island With Emphasis on the Relationships of Mineral Deposits to Plutonic Rocks, Unpublished Ph.D. Thesis, Carleton University