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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  25-Apr-2019 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name GARNET, HERB, MOLY Mining Division Greenwood
BCGS Map 082E019
Status Showing NTS Map 082E01E
Latitude 049º 08' 13'' UTM 11 (NAD 83)
Longitude 118º 12' 30'' Northing 5443382
Easting 411863
Commodities Copper, Molybdenum Deposit Types
Tectonic Belt Omineca Terrane Slide Mountain
Capsule Geology

The Garnet occurrence is located on a northeast-trending ridge separating Texas and McRae creeks, approximately 3.5 kilometres northeast of the mouth of Texas Creek on Christina Lake.

The area is underlain by mudstone, siltstone, shale and fine clastic sedimentary rocks of the Carboniferous to Permian Mount Roberts Formation. To the north and west these have been intruded by Middle Jurassic granitic rocks and by syenitic to monzonitic rocks of the Eocene Coryell Plutonic Suite to the south. The zone has been followed intermittently by pits and trenches for approximately 240 metres along strike with the best mineralization exposed in the two northern pits over a distance of 60 metres and a width of 9 metres.

Locally, irregular, sill-like bands of disseminated molybdenite-bearing quartz are reported in a paragneiss host, which has been intruded by a coarse biotite-rich granite. The granite also hosts scattered molybdenite mineralization. The paragneiss strike to the north and dips 15 to 30 degrees east.

In 1957, sampling from the main quartz band yielded from 0.1 to 3.9 per cent molybdenum with an average of approximately 0.6 per cent molybdenum over 0.6 metre, whereas samples of the granite yielded 0.1 per cent molybdenum (Property File - McDougall, J.J. [1957-12-19]: Report on Barriere Molybdenite and Christina Lake Molybdenite).

In 1969, Brycon Explorations Ltd. conducted an 87 line- kilometre airborne magnetometer survey over the Herb, Moly, Garnet, Ruby and Jack claims. Previous geochemical soil and self-potential surveys located anomalies that, when investigated by diamond drilling, revealed that copper and molybdenum was present in some bedrock areas.

Bibliography
EMPR AEROMAG MAP 8497G
EMPR AR 1895-479; 1898-1195; 1906-253
EMPR ASS RPT *1811
EMPR GEM 1969-311
EMPR MR MAP 6 (1932)
EMPR OF 1990-25
EMPR P 1986-2
EMPR PF (*McDougall, J.J. [1957-12-19]: Report on Barriere Molybdenite and Christina Lake Molybdenite)
EMPR PRELIM MAP 59
GSC MAP 828; 45-20A; 6-1957; 10-1967; 1500A; 1736A
GSC OF 481; 637; 1969
GSC P 67-42; 79-29
EMPR PFD 650023

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