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File Created: 04-May-1990 by Dorthe E. Jakobsen (DEJ)
Last Edit:  04-May-1990 by Dorthe E. Jakobsen (DEJ)

Summary Help Help

NMI
Name APRIL Mining Division Alberni
BCGS Map 092F007
Status Showing NTS Map 092F02E
Latitude 049º 05' 12'' UTM 10 (NAD 83)
Longitude 124º 40' 30'' Northing 5438441
Easting 377701
Commodities Copper, Silver, Gold Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The April showing is located 19 kilometres southeast of Port Alberni on the north side of Museum Creek.

The area is underlain by volcanic rocks of the Upper Triassic Karmutsen Formation, Vancouver Group intruded by Early to Middle Jurassic Island Plutonic Suite. These comprise dark green chloritic greenstone, altered pillow breccia, basaltic greenstone and diorite intrusives.

Quartz-epidote-calcite stringers are hosted in greenstone with disseminated to semi-massive pyrite, chalcopyrite, pyrite and possibly magnetite. Propylitic alteration in the host rock is common. A grab sample from an outcrop (#2963) assayed 0.4294 per cent copper, 1.5 grams per tonne silver and 0.012 grams per tonne gold (Assessment Report 15953). The sample contained epidote stringers, up to 8 centimetres wide striking 320 degrees, with quartz and minor sulphides.

Bibliography
EMPR ASS RPT 12696, 15288, *15953
EMPR BULL 37
EMPR FIELDWORK 1988 pp. 61-74
EMPR OF 1987-2; 1988-24; *1989-6
GSC MAP 17-1968; 49-1963
GSC OF 463, 1272
GSC P 68-50, 79-30
CIM BULL Vol. 83 No. 935, March 1990 pp. 125-135

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