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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  19-Feb-2001 by Janet M. Riddell (JMR)

Summary Help Help

NMI
Name AKU, DD, MOLY Mining Division Kamloops
BCGS Map 092P079
Status Prospect NTS Map 092P16W
Latitude 051º 46' 47'' UTM 10 (NAD 83)
Longitude 120º 22' 11'' Northing 5739812
Easting 681440
Commodities Molybdenum Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Plutonic Rocks
Capsule Geology

The Aku showings are located about 15 kilometres south of Mahood Lake, on a ridge about 1.6 kilometres east of the north end of Patricia Lake at an elevation of 1486 metres.

The showings are hosted entirely in granitic rocks of the Cretaceous Raft batholith, and occur in a unit of medium grained, leucocratic biotite-quartz monzonite which is surrounded by more mafic biotite-quartz monzonite that grades to the southwest into biotite-hornblende granodiorite. Both quartz monzonite phases are cut by dikes of quartz-feldspar porphyry which trend west to north- northwest. The granitic and dike rocks are all cut by aplite veins and dikes, which are cut by molybdenite-bearing quartz veins, which are, in turn, cut and offset by pyrite-quartz veins. The main molybdenite showings are confined to a fracture zone that strikes 108 degrees and dips 55 degrees to the north. Within the mineralized zone, vein spacing is about 8 veins per metre. Outside the main zone the fractures are much more randomly oriented and more widely spaced. Molybdenite occurs exclusively in quartz veins which range from hairline to two centimetres thick; the veins may or may not carry associated pyrite. Secondary minerals commonly found are ferrimolybdite, limonite and manganese oxides. Rock alteration, even within the mineralized zones, is weak and is limited to saussurite alteration of feldspars.

The area was first staked by Falconbridge Nickel Mines Limited in 1966 when stream geochemistry indicated areas anomalous in molybdenum. In 1967, geological, geochemical and geophysical surveys were carried out, along with road construction and limited trenching. In 1968, five diamond-drill holes totalling 833 metres were drilled. In 1974, Amoco Canada Petroleum Limited staked the property and performed geochemical and geophysical surveys. In 1976, Vital Mines Limited staked the area and carried out an induced polarization survey. Kerr, Dawson and Associates Limited and Werner Gruenwald staked the area as the DD claims in 1979 and 1980.

Bibliography
EMPR AR 1967-131; 1968-166
EMPR ASS RPT 1026, 5085, 6171, 7985, 8852
EMPR GEM *1970-303; 1976-E133
EMPR OF 2002-15
EMPR PF (Claim and location map)
GSC MAP 1966-3; 1278A

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