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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Mar-2018 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name C, DK Mining Division Cariboo
BCGS Map 093C004
Status Showing NTS Map 093C03W
Latitude 052º 00' 45'' UTM 10 (NAD 83)
Longitude 125º 22' 08'' Northing 5765078
Easting 337431
Commodities Copper, Molybdenum Deposit Types
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

The C occurrence is located on the south western shore of McClinchy Lake.

The region is underlain to the west by the Coast Crystalline belt and to the east by Mesozoic and Tertiary volcanic and sedimentary rocks. A hybrid zone along the eastern margin of the Coast Crystalline Belt contains elements of both terranes. In this zone Mesozoic rocks have been incorporated into the plutons and are overlain by Tertiary volcanic rocks. The degree of metamorphism and deformation of the Intermontane Belt supracrustal rocks increases towards the Coast Crystalline Belt.

The showing occurs within the hybrid zone, where volcanic rocks, probably part of the Jurassic Hazelton Group, have been intruded and metasomatized by diorite and quartz monzonite. Breccia pipes containing sulphides are present in the area. In 1973, drilling encountered mainly quartz diorite with minor disseminated chalcopyrite, pyrrhotite, pyrite and magnetite. Drill samples yielded values up to 0.01 per cent copper and trace molybdenum over 3.0 metres (Assessment Report 5163).

In 1972, Cardwell Resources completed 10.5 line-kilometres of a combined airborne electromagnetic survey on the area as the McClinchy property. In 1973, Rio Tinto completed two diamond drill holes, totalling 119.0 metres, on the area as the C claim. In 2011, Seaborne Minerals completed a 901.0 line-kilometre airborne geophysical survey on the area. In 2013 and 2015, minor programs of soil sampling and prospecting were completed.

Bibliography
EMPR ASS RPT 4209, *5163, 32489, 33929, 34248, 35753
EMPR GEM 1973-319
GSC MAP 1424A; 1202A; 10-1957

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