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File Created: 04-Dec-1991 by Ron McMillan (RHM)
Last Edit:  18-Sep-2020 by George Owsiacki (GO)

Summary Help Help

NMI
Name KOT Mining Division Omineca
BCGS Map 093M086
Status Showing NTS Map 093M15W
Latitude 055º 48' 58'' UTM 09 (NAD 83)
Longitude 126º 50' 51'' Northing 6187710
Easting 634872
Commodities Zinc, Lead Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine, Plutonic Rocks
Capsule Geology

The Kot occurrence is located 4 kilometres west-northwest of Kotsine Mountain, 82 kilometres northwest of the community of Hazelton.

A package of thin bedded, fine clastic and locally tuffaceous sedimentary rocks (greywacke, sandstone, and siltstone) and intercalated felsic lapilli and ash fall tuff of the Lower Jurassic Nilkitkwa Formation (Hazelton Group) underlie the showing. A thick sill of coarse-grained diabasic gabbro of Jurassic age intrudes the sedimentary rocks.

A vertically dipping, 25-metre-wide weakly mineralized zone of stockwork veining strikes 130 degrees. It contains lenses and veins of calcite, chlorite, pyrite, sphalerite, and galena; the thickest lens is 25 centimetres wide. One mineralized grab sample assayed 7.6 per cent zinc and 0.42 per cent lead (Assessment Report 14943).

In 1985, the Kot 1-4 claims were staked by Placer Development Ltd. to encompass a lead-zinc stream sediment anomaly identified by a joint Federal-Provincial stream sediment reconnaissance survey carried out in the Hazelton map sheet in 1983. A small exploration programme was carried out by Placer consisting of prospecting and a small amount of reconnaissance mapping, outcrop and float sampling (22 samples) and reconnaissance soil sampling (291 samples). The anomaly source was traced to a weakly mineralized carbonate vein system in fractured sedimentary and volcanic rock. The reconnaissance soil survey identified a series of weak to strong geochemical anomalies; some of the anomalies may reflect fracture-controlled mineralization similar to that observed in outcrop.

In 1988, Placer Dome Inc. completed an exploration program consisting of grid location and construction, ground geophysical (Very Low Frequency and magnetometer) and soil geochemical surveys. The geophysical survey revealed two prominent north-trending conductors. The soil geochemical survey showed only a few weak base metal anomalies. There is no apparent correlation between either of the geophysical conductors and the geochemical data (Assessment Report 17794).

Bibliography
EMPR ASS RPT *14943, 17794
GSC BULL 270
GSC OF 720; 2322

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