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File Created: 29-Oct-2019 by Karl A. Flower (KAF)
Last Edit:  07-Nov-2019 by Karl A. Flower (KAF)

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NMI
Name H1541, HUSHAMU NORTH, EXPO Mining Division Nanaimo
BCGS Map 092L061
Status Showing NTS Map 092L12W
Latitude 050º 40' 41'' UTM 09 (NAD 83)
Longitude 127º 50' 47'' Northing 5614659
Easting 581506
Commodities Copper Deposit Types L : PORPHYRY
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The H1541 occurrence is located near the head of a small creek flowing south into Hushamu Lake, approximately 650 metres north-northeast of the centre of Hushamu Lake.

Regionally, the area is underlain by northwest-trending belts of basaltic volcanics and carbonate sedimentary rocks of the Upper Triassic Karmutsen and Quatsino formations (Vancouver Group) and mafic volcanics and sediments of the Upper Triassic to Lower Jurassic Bonanza Group (Holberg volcanic unit, Nahwitti River wacke and Parson Bay Formation). These volcanic and sedimentary rocks have been intruded by granodioritic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, chlorite-silica–altered volcanic rocks, associated with a southwest-striking fault zone showing dextral oblique displacement, host disseminated pyrite and chalcopyrite mineralization.

In 2005, a chip sample (379396) assayed 0.827 per cent copper over 1.0 metre (Assessment Report 28375).

The area has been explored since the 1960s in conjunction with the nearby Hushamu (MINFILE 092L 240) occurrence. In 2005, Luminar Resources Corp. completed a program of rock, silt and soil sampling, geological mapping and a 2687.0 line-kilometre airborne electromagnetic survey on the area.

Bibliography
EMPR ASS RPT *28375
EMPR GEM 1974-217,218 Fig.29
EMPR OF 1988-19
GSC BULL 242
GSC MAP 4-1974
GSC OF 9; 170; 463
GSC P 69-1A; 72-44; 74-8; 79-30
Carson, D.J.T., (1968): Metallogenic Study of Vancouver Island with emphasis on the Relationship of Plutonic Rocks to Mineral Deposits, Ph.D. Thesis, Carleton University, Ottawa

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