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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Apr-2012 by George Owsiacki (GO)

Summary Help Help

NMI
Name KIT, KITWANGA LAKE Mining Division Omineca
BCGS Map 103P040
Status Showing NTS Map 103P08E
Latitude 055º 21' 25'' UTM 09 (NAD 83)
Longitude 128º 11' 06'' Northing 6134823
Easting 551673
Commodities Molybdenum, Copper Deposit Types L05 : Porphyry Mo (Low F- type)
Tectonic Belt Intermontane Terrane Bowser Lake, Stikine
Capsule Geology

The Kit showing is located 4 kilometres west of Kitwanga Lake, northwest of Hazelton. The area was investigated for molybdenite mineralization in 1967 and 1979. In 1967, the prospect was covered by claims owned by Mastodon-Highland Bell Mines Ltd. who completed soil sampling and geological mapping. Preliminary geological mapping, rock chip sampling and detailed soil sampling was carried out in 1979 by AMAX of Canada Limited.

The area is underlain by argillite and greywacke of the Middle Jurassic to Upper Cretaceous Bowser Lake Group. These dip northwest and have been intruded by Tertiary Coast Plutonic Complex biotite feldspar porphyry sills (and possibly dikes) and younger mafic dikes. The biotite feldspar intrusion consists of two phases, one contains pyrite, pyrrhotite and locally chalcopyrite and molybdenite. The argillite and greywacke have been hornfelsed for up to 75 metres from the contact with the mineralized phase.

Molybdenite occurs as disseminated small flakes in a quartz vein stockwork hosted by porphyry and hornfels. This stockwork is present for over 200 metres along one ridge. The veins are 0.2 to 1.0 centimetres wide and molybdenite is concentrated at certain vein intersections. Molybdenite also occurs, locally, disseminated along fractures. Outcrops containing mineralization are highly silicified and bleaching is sometimes present adjacent to quartz veins.

Bibliography
EMPR AR 1967-290
EMPR ASS RPT 1036, *7925
EMPR BULL 63; 64
EMPR FIELDWORK 1988, pp. 233-240; 1990, pp. 235-243
EMPR MAP 8
EMPR OF 1986-2; 1994-14
GSC MAP 1385A
GSC OF 864

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