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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  19-Dec-2013 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name BEAR, BEAR CREEK, AMOR DE COSMOS CREEK, HUMPBACK BABY Mining Division Nanaimo
BCGS Map 092K032
Status Showing NTS Map 092K05E
Latitude 050º 20' 43'' UTM 10 (NAD 83)
Longitude 125º 41' 31'' Northing 5580487
Easting 308474
Commodities Copper, Gold, Silver Deposit Types D03 : Volcanic redbed Cu
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Bear showing is located approximately 1.0 kilometre west of Amor de Cosmos Creek (formerly Bear Creek), 1.5 kilometres inland from Humpback Bay. This occurrence is near the Copper King-Copper Queen (MINFILE 092K 042).

The area is underlain by Upper Triassic Karmutsen Formation andesite, basalt and to a lesser degree by poorly developed volcanic breccias. The flow rocks are mainly dark green to grey-green in colour and commonly amygdaloidal or porphyritic. Amygdules are usually filled with quartz, epidote and occasionally carbonate. Purplish andesitic fragments varying up to 2.54 centimetres in diameter are widely but apparently thinly scattered in the basalt and andesite. A bedding attitude in the volcanics of 290 degrees and 70 degrees southwest dip has been measured. An irregular lens of purplish grey limestone has also been noted. It varies up to 16 centimetres in width and about 18 metres in length. Epidote and quartz are the most obvious alteration minerals in the area.

Mineralization in the form of chalcopyrite is disseminated in a green epidotized volcanic rock. Sparce disseminations of pyrite, chalcopyrite and rare pyrrhotite and bornite(?) have been located in the area. The best assay from a road side was 0.97 per cent copper, 0.3428 grams per tonne gold and trace silver (sample 1202; Assessment Report 2405).

In 1971, Vanco Explorations completed soil sampling and a ground magnetometer survey on the area as the Bear claim.

Bibliography
EMPR ASS RPT *2405
EMPR GEM 1969-211
GSC MAP 1386A
GSC OF 480
EMPR PFD 841040

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