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File Created: 07-May-2020 by Karl A. Flower (KAF)
Last Edit:  07-May-2020 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name KM (NORTH CENTRAL CIRQUE), NORTH CENTRAL CIRQUE, KM Mining Division Omineca
BCGS Map 093M083
Status Showing NTS Map 093M14W
Latitude 055º 48' 59'' UTM 09 (NAD 83)
Longitude 127º 27' 56'' Northing 6186710
Easting 596149
Commodities Silver, Copper, Lead, Zinc, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine, Plutonic Rocks
Capsule Geology

The KM (North Central Cirque) occurrence is located on a steep south facing slope, north of Kitsgegas Peal and approximately 2 kilometres northeast of Kitsgegas Lake.

The area is underlain by shale, slate, siltstone and sandstone of the Middle Jurassic to Lower Cretaceous Bowser Lake Group. These are intruded by quartz diorite and/or diorite and/or granodiorite dikes, sills and plugs of the Late Cretaceous Bulkley Plutonic Suite.

Locally, a grouping of parallel quartz-ankerite veins with a semi-massive galena-sphalerite horizon has been identified in sediments. Galena and sphalerite each comprise up to 15 per cent of the veins with chalcopyrite present to 5 per cent. The grouping of veins is up to 5 centimeters in true thickness and have been traced for 5 meters. Nearby, approximately 10 metres away, a 30-centimetre-wide phyllic aureole enveloping a 12-centimetre wide gossanous quartz vein containing 5 per cent galena and 1 per cent chalcopyrite has been identified.

Another zone of mineralization is reported approximately 800 metres to the north west at an elevation of approximately 1900 metres. At this location, a quartz vein containing blebs of galena is hosted by a sill-like granodiorite body. Down slope and south of the previous vein, a vuggy quartz vein with up to 20 per cent galena and local chalcopyrite has been identified.

In 2009, a sample (441064) assayed 82.7 grams per tonne silver, 0.23 per cent copper, 1.47 per cent lead and 4.11 per cent zinc, while a nearby sample (441063) assayed 30.5 grams per tonne silver, 0.45 per cent lead and 0.91 per cent zinc (Thomson, G.R. (2009-10-15): Technical Report on the KM Property).

Also at this time, a sample (441076) from a mineralized quartz vein, located approximately 800 metres to the north west, assayed 0.85 gram per tonne gold and greater than 100 grams per tonne silver, while a sample (441069) taken from another vein, located down slope to the south of the previous sample, assayed 0.16 gram per tonne gold, 59.4 grams per tonne silver, 0.39 per cent copper and 0.69 per cent lead (Thomson, G.R. (2009-10-15): Technical Report on the KM Property).

See Kisgegas (093M 126) occurrence for details of the KM property work history of which the KM (North Cirque) area was part of.

Bibliography
EMPR ASS RPT 17542, 31149, 31755, 32679
EMPR OF 1990-32; 1992-1; 1990-32; 1992-1; 1992-3; 1998-10; 2008-6
GSC OF 551; 720; 2322; 5705
*Thomson, G.R. (2009-10-15): Technical Report on the KM Property

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