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File Created: 24-Jul-85 by BC Geological Survey (BCGS)
Last Edit:  03-Feb-03 by George Owsiacki(GO)

Summary Help Help

NMI
Name DM 62, COQUIHALLA EAST Mining Division Kamloops
BCGS Map 092I068
Status Showing NTS Map 092I09W
Latitude 50º 38' 42" N UTM 10 (NAD 83)
Longitude 120º 29' 05" W Northing 5613368
Easting 677828
Commodities Copper, Gold, Palladium Deposit Types L03 : Alkalic porphyry Cu-Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

A shaft on the DM 62 claim is at least 6 metres deep to water (ca. 1957) and was sunk in fine grained, rusty weathered diorite containing abundant fine and coarse grained disseminated pyrite. The diorite is probably part of the Cherry Creek unit of the Late Triassic-Early Jurassic Iron Mask batholith (Bulletin 77). A nearby trench exposes two intersecting shatter zones, one striking 060 degrees and the other 140 degrees, both with vertical dips. The shatter zones are made up of very closely spaced jointing over a width of 22 to 61 centimetres. Some malachite staining occurs on the walls of the shaft, but limonite staining is more abundant. In dump material, malachite occurs in thin seams and fractures and a little coarse chalcopyrite and bornite was found in a calcite vein. A small pit 122 metres northeast of the shaft exposes local small masses of chalcopyrite hosted in a brecciated diorite with a chlorite matrix. Carbonate veins up to 10 centimetres wide occur in a shatter zone striking 100 degrees and dipping vertically.

Abacus Mining and Exploration Corporation's Coquihalla East zone is assumed to be the same showing location as the historic DM 62 showing and is in the same northwest-southeast trending structural corridor as the Afton, Pothook, Ajax and Rainbow deposits. More locally, the zone is 800 metres southeast and directly on strike from the Pothook pit. A selected grab sample over 3 metres in a roadcut assayed 6.36 grams per tonne gold, 0.83 gram per tonne palladium and 1.0 per cent copper. The Coquihall East zone extendes for a strike length of at least 700 metres and remains open along strike to the southeast. The zone lies within the same structural corridor as the Rainbow No.2 and No.22 zones (092INE028) located 2000 metres to the southeast (News Release, Abacus Mining & Exploration Corporation, December 17, 2002).

Previous exploration on the DM claims was completed by Teck Cominco Limited in the 1990s. The program consisted of five drillholes, spaced 100 metres apart along the strike of the zone. The most significant intersection came from drillhole 96-12 and graded 1.04 grame per tonne gold and 0.11 per cent copper over 15 metres. A grab sampling program recently performed by Abacus was situated in a historic shallow pit dump, approximately 250 metres east of Teck Cominco's drilling. One sample assayed 8.75 grams per tonne gold, 0.99 per cent copper and 1.18 grams per tonne palladium (News Release, November 7, 2002).

In 1956-57, Graham Bousquet Gold Mines Limited conducted soil sampling, geological mapping, resistivity, magnetometer and electromagnetic surveys over the DM and Afton group of claims. In 1972, Initial Developers Corporation conducted 11 kilometres of induced polarization over the DM claims.

Bibliography
EMPR ASS RPT 141, *192, 3554
EMPR BULL 77
EMPR FIELDWORK 2002, pp. 129-132
GSC OF 165; 980; 2490
GSC MAP 886A; 887A; 9-1963; 1394A; 42-1989
GSC MEM 249
GSC P 44-20; 82-1A, pp. 293-297; 85-1A, pp. 349-358
PR REL Dec.5,17, 2002 - Abacus Mining & Exploration Corp.

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