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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 TJ, EXPO, H706, PEMBERTON HILLS NW Mining Division Nanaimo
BCGS Map 092L061
Status Showing NTS Map 092L12W
Latitude 050º 38' 28'' UTM 09 (NAD 83)
Longitude 127º 48' 50'' Northing 5610588
Easting 583868
Commodities Gold, Silver, Copper, Lead, Zinc Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The TJ occurrence is located on a ridge separating Hushamu Creek and the northwestern headwaters of Youghpan Creek, approximately 4.5 kilometres southeast 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 Parsons Bay Formation). These volcanic and sedimentary rocks have been intruded by granodioritic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, weakly chlorite-altered andesitic flows and tuffs host two planar to irregular stockwork quartz veins, 10 and 7 metres wide, respectively, with local chalcopyrite, sphalerite and galena mineralization. The veins are orientated at 060 and 360 degrees. Calcite and pyrobitumen are also reported.

In 2005, rock chip samples yielded up to 11.70 grams per tonne gold, greater than 200 grams per tonne silver, 0.583 per cent copper, 1.070 per cent lead and 1.210 per cent zinc (sample 380064; 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 AR 1968-98
EMPR ASS RPT *28375
EMPR EXPL 1976-129; 1977-E174; 1980-275; 1983-337; 1985-C238; 1986-C281
EMPR GEM 1970-254,262; 1971-321; 1972-304; 1973-262; 1974-217,218, Fig.29
EMPR OF 1988-19, pp. 16,17
GSC ANN RPT 1886
GSC BULL 242
GSC MAP 4-1974
GSC OF 9; 170; 463
GSC P 69-1A; 72-44; 74-8; 79-30
CJES 18, p. 1; 20, p. 1, Jan. 1983
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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