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File Created: 23-Feb-2001 by Ron McMillan (RHM)
Last Edit:  17-Jul-2013 by Nicole Barlow (NB)

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BCGS Map 092P049
Status Showing NTS Map 092P08E
Latitude 051º 25' 10'' UTM 10 (NAD 83)
Longitude 120º 14' 35'' Northing 5700077
Easting 691688
Commodities Platinum, Palladium, Gold, Chromium Deposit Types M : ULTRAMAFIC/MAFIC ASSOCIATION
Tectonic Belt Intermontane Terrane Quesnel, Harper Ranch
Capsule Geology

The Golden Loon Platinum or Clearwater Platinum occurrence is located 2.5 kilometres west of Little Fort. Good-quality logging and bush roads provide access to the property.

A "football-sized" sample of highly oxidized ultramafic material cut by chromite stringers yielded an analysis of 13,798 ppb platinum, 25 ppb palladium and 23 ppb gold (sample 165509, Assessment Report 16100) at the location called the Clearwater Platinum Occurrence (Fieldwork 2000, page 22, figure 4). A second highly anomalous sample of dark peridotite with chromite veins (sample 165502), from about 1 kilometre to the north, yielded 483 ppb platinum, 10 ppb palladium and 2 ppb gold. These two samples were from a group of 150 samples collected in 1999 (Assessment report 16100) of ultramafic rocks from the Dum Lake Intrusive Complex.

Hostrocks are ultramafic intrusive rocks of the Triassic to Jurassic Dum Lake Intrusive Complex which consists of a mafic portion composed of diorite, gabbro, microdiorite and intrusion breccia, and an ultramafic portion composed of dunite, wehrlite, pyroxenite and serpentine. The Dum Lake Intrusive Complex is believed to be an Alaskan-type intrusive complex (Fieldwork 2000). It is in contact with granodioritic rocks of the Triassic to Jurassic Thuya batholith on the west. On its eastern side the Dum Lake intrusive rocks intrude siltstone, argillite, chert and limestone of the late Paleozoic Harper Ranch Group and mafic volcanic rocks, related volcaniclastic rocks, clastic sediment, chert and limestones of the Upper Triassic Nicola Group.

The earliest record of prospecting in the area dates from the 1920s when placer gold was recovered from the Eakin Creek Placer (092P 055). In 1967, Noranda Exploration Company (Assessment Report 1051) completed a soil sampling survey over the Kira claims after obtaining anomalous results in a reconnaissance stream sediment sampling program. The program outlined zones of anomalous copper and nickel. In 1973, Rio Tinto Canadian Exploration Limited completed another soil geochemical sampling program on the Dum Claim Group (Assessment Report 4689), outlining copper, zinc and lead anomalies west of Dum Lake. Teck Corporation reportedly (Assessment Reports 14237, 15870) staked the Minerva Group in 1980-81 on the west side of the Golden Loon Property and undertook a magnetometer survey and a soil geochemical survey, obtaining several silver anomalies. In 1984, The Golden Loon Claims were staked by Barnes Creek Minerals and a prospecting program undertaken (Assessment Report 14237). In 1985, additional prospecting was undertaken and magnetometer, VLF-EM and soil geochemical surveys completed (Assessment Reports 14920 and 15937). In 1987, Mineta Resources completed a program (Assessment Report 17342) which included soil geochemical surveys (548 samples), linecutting (34.6 kilometres), lithogeochemistry (18 samples), and stream sediment geochemical sampling (70 samples) and located some high grade float boulders as well as outlined some gold-in-soil geochemical anomalies. In 1988, Mineta completed 78.2 kilometres of linecutting, 61.0 kilometres of VLF-EM and magnetometer surveying and collected 1571 soil geochemical samples (Assessment Reports 18802 and 21109). In 1989, Mineta completed 25.0 kilometres of VLF-EM and magnetometer surveying, as well as soil geochemical (556 samples) and lithogeochemical (20 samples) surveys (Assessment Report 20029). In 1990, the property was optioned to Corona Corporation and an extensive program (Assessment Report 21014) of prospecting, geological mapping, soil geochemical sampling (637 samples) and geophysical surveys (25 kilometres of magnetometer and VLF-EM), trenching and diamond drilling (691 metres in 7 holes) was carried out. In 1992, Placer Dome Limited optioned the property, focusing on the porphyry copper-gold potential of the western portion of the property (Assessment Report 22818) and completed 20.0 kilometres of grid preparation, geological mapping and soil geochemical surveying (1083 samples). In 1996, Meteor Minerals Incorporated completed a program of geochemical soil sampling to test the potential of the enzyme leach technique in tracing mineralized zones in areas of extensive overburden (Assessment Report 24883). In 1997, Meteor completed a three-hole (393 metres) diamond drill program on the Golden Loon High Grade Zone (092P 141). In 1999, Tilava Mining Corporation completed a program of lithogeochemical sampling (150 samples) on ultramafic rocks on the property and detected significant platinum values (Assessment Report 26100). In 2000, the property was optioned by Cusac Gold Mines Limited (George Cross News Letters #191,#216, 2000) and VLF-EM, magnetometer, induced polarization and soil geochemical (119 samples) surveys completed.

From 2000 to 2003, Cusac carried out geological mapping, geophysical and geochemical surveys, trenching and an initial core drilling program that identified long intervals of nickel and cobalt mineralization in three drillholes (Assessment Report 26564).

In 2007, Sheffield Resources Ltd. optioned six claims from Tilava Mining Corp.; subsequently, in its search for nickel, cobalt and platinum group metals, geophysical and geochemical studies were completed over the claims. A helicopter-borne AeroTEM II electromagnetic and magnetic geophysical survey was flown over the property, covering 492.4 line kilometres (Assessment Report 29630).

In 2011 and 2012, Planet Exploration Inc. conducted a two-phase diamond drilling program at the Golden Loon project. Drillhole GL-11-012 intersected 39.4 metres of 1.05 grams per tonne gold, including 3.4 metres of 5.39 grams per tonne gold, discovering a new major gold zone to the east of previously reported drill results (V STOCKWATCH, January 10, 2012). The first hole of Phase 2 intersected 80.1 metres of 1 gram per tonne gold, including 23.7 metres of 2.15 grams per tonne gold in drillhole GL-12-017 (V STOCKWATCH, March 2, 2012).

Also, in 2012, Planet Exploration Inc. completed an exploration program on the large nickel-cobalt-silver-platinum–mineralized ultramafic intrusion that forms the core of the Golden Loon property. Planet assayed drillcore from eight holes totalling 1380 metres; all drillholes ended in mineralization. Highlights from the results included consistent mineralization with intervals returning an average of 0.21 per cent nickel and 0.011 per cent cobalt; half of tested intervals contained silver mineralization returning 5 to 91 grams per tonne silver (V STOCKWATCH, March 22, 2012).

EMPR ASS RPT 1051, 2418, 4689, 14237, 14920, 15870, 15937, 17342
18802, 20029, 21109, 21014, 22818, 24315, 24883, 25431, *26100, *26564, *29630
EMPR FIELDWORK *2000, pp. 20-22
GCNL #234(Dec.7), 1999; #154(Aug.11), #191(Oct.5), #216(Nov.10), 2000
V STOCKWATCH, Jan. 10, Mar. 2, 22, 2012