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File Created: 25-Mar-2020 by Karl A. Flower (KAF)
Last Edit:  16-Jun-2021 by George Owsiacki (GO)

Summary Help Help

NMI
Name NORTH DAM EAST, NEEDLE 1-2, KEMESS Mining Division Omineca
BCGS Map 094E007
Status Showing NTS Map 094E02E
Latitude 057º 02' 29'' UTM 09 (NAD 83)
Longitude 126º 38' 31'' Northing 6324473
Easting 643064
Commodities Copper, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine, Plutonic Rocks
Capsule Geology

The North Dam East occurrence is located at an elevation of approximately 1680 metres on a north-facing slope between Kemess and East Kemess creeks, approximately 6.5 kilometres northeast of Kemess Lake, and about 186 kilometres northwest of the community of Germansen Landing.

The Toodoggone Gold Camp lies within the eastern margin of the Intermontane Belt and is underlain by a northwest trending belt of Paleozoic to Paleogene sediments, volcanics and intrusions. Regionally, the area is situated within a Mesozoic volcanic arc assemblage bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins. Devonian to Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region and are commonly in thrust contact with Upper Triassic Stuhini Group marine sedimentary and volcanic rocks, andesite flows and pyroclastic rocks. These units have been intruded by granodiorite to quartz monzonite of the Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against dacitic volcanics and volcaniclastics of the Lower Jurassic Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults that define a prominent regional northwest structural fabric trending 140 to 170 degrees. High angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace the northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

Locally, Asitka Group cherts host malachite along fractures. The chert strikes 180 degrees and dips 68 degrees. In 2008, two rock samples (115154 and 115164) of chert assayed 0.542 and 1.283 per cent copper, respectively, while a sample (115151) of granodiorite yielded 0.29 gram per tonne gold (Assessment Report 30823).

The area has been historically explored in conjunction with the nearby Kemess South past-producing mine (094E 094). In 1988, Canadian Venture Corp. completed an 80.0 line kilometre airborne magnetic and electromagnetic survey on the area as the Needle 1-2 claims.

In 1991, El Condor Resources Ltd. completed a program of geological mapping and geochemical sampling on the area as apart of the Kemess property.

In 2008, Northgate Minerals Corp. completed a program of rock sampling, geological mapping and a 22.6 line kilometre ground induced polarization survey on the area as apart of the Kemess property.

Bibliography
EMPR ASS RPT 17602, 22280, *30823
EMPR BULL 86
EMPR EXPL 1975-E163-E167; 1976-E175-E177; 1977-E216-E217; 1978-E244-E246; 1979-265-267; 1980-421-436; 1982-330-345; 1983-475-488; 1984-348-357; 1985-C349-C362; 1986-C388-C414; 1987-C328-C346; 1988-C185-C194
EMPR FIELDWORK 1980, pp. 124-129; 1983, pp. 122-129, 135-141; 1982, pp. 125-127; 1983, pp. 137-138, 142-148; 1984, pp. 139-145, 291-293; 1985, pp. 167-169, 299; 1987, pp. 111, 114-115
EMPR GEM 1971-63-71; 1973-456-463
EMPR GEOLOGY 1977-1981, pp. 156-161
EMPR OF 2001-01
GSC BULL 270
GSC OF 306; 483
GSC P 80-1A, pp. 27-32

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