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File Created: 06-Feb-1992 by Keith J. Mountjoy (KJM)
Last Edit:  24-Mar-2022 by Nicole Barlow (NB)

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NMI
Name SKARN 2, SKARN 1-4, WRICH, WRICH 1, WRICH 2, RICKY, FINLAY RIVER, GOAT, CONCHA, CONCHA 1-7, GRACE, GRACE 1-14, ERROR 1-8, JOK, JOK 1-6 Mining Division Omineca
BCGS Map 094E016
Status Showing NTS Map 094E02W
Latitude 057º 08' 41'' UTM 09 (NAD 83)
Longitude 126º 48' 05'' Northing 6335627
Easting 633022
Commodities Copper, Lead, Zinc, Silver, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Skarn 2 occurrence is located at an elevation of approximately 1500 metres on a northwest-facing slope, east of the Finlay River and approximately 7.5 kilometres east-northeast of its confluence with the Firesteel River, about 275 kilometres north of the community of Smithers.

Regionally, the area is situated within a Mesozoic volcanic arc assemblage, which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Paleogene sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Stuhini Group andesite flows and pyroclastic rocks, and marine sedimentary and volcanic rocks of the Lower to Middle Jurassic Hazelton Group. These rocks have been intruded by plutons and other bodies of the mainly granodiorite to quartz monzonite Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against Lower Jurassic calc-alkaline volcanics of the Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults that define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The occurrence area is underlain by Stuhini Group volcanic rocks, consisting of dark green augite porphyry basalt flows and breccias, and lesser fine-grained andesite and basalt with associated sediments. Approximately 1 kilometre to the west, a thrust fault juxtaposes Stuhini volcanics onto structurally underlying Toodoggone Formation volcanic rocks. Dacitic to andesitic crystal-ash tuffs and flows comprise Toodoggone volcanics.

Locally, a quartz vein is hosted in a hypabyssal quartz feldspar porphyry dike. The dike may be a hypabyssal equivalent of the Toodoggone volcanics. A lens of recrystallized limestone outcrops approximately 75 metres west of the occurrence. Bedding within the limestone varies from 120 to 145 degrees and dips 33 to 58 degrees northeast. Volcanics in the area host up to 10 per cent disseminated magnetite and pyrite.

In 1987, a sample (R6874) assayed 3.0 grams per tonne silver and 0.085 gram per tonne gold (Assessment Report 17459). In 1988, several samples were taken from this vein, which yielded anomalous silver, copper, lead and zinc values. Sample Q-7612 assayed 75.9 grams per tonne silver, 3.328 per cent lead, 2.258 per cent zinc and 0.965 per cent copper, whereas three other samples (Q-7606, -7614 and -7615) yielded up to 0.135 gram per tonne gold, 94.9 grams per tonne silver, 0.700 per cent lead, 0.410 per cent zinc and 0.111 per cent copper (Assessment Report 18396).

In 1980, initial silt sampling of the area by Serem Ltd., the predecessor to Cheni Gold Mines Inc., resulted in the staking of the Wrich claims in 1981. Subsequent work, during 1982 through 1985, included geological mapping, prospecting, rock and soil geochemical sampling and geophysics, consisting of VLF-EM and VLF-EMR surveys. In 1987, Cheni conducted a program of rock and soil sampling and geological mapping on the area. An option agreement was made between Skylark Resources Ltd. and Cheni Gold Mines Inc. following this program. The following year, a program included geological mapping, geochemical (rock, soil and silt) surveys and geophysical surveys consisting of VLF-EMR and magnetometer.

During 1997 through 2003, Stealth Mining Corp., on behalf of Electrum Resource Corp., completed programs of rock and soil sampling, geological mapping and ground geophysical surveys on the area. In 2009, Gold Fields Toodoggone Exploration Corp. completed a program of rock and silt sampling, geological mapping, a 180.8-line kilometre ground induced polarization survey and a 2778.0-line kilometre airborne magnetic survey on the area as part of the Pine property. During 2016 through 2018, Amarc Resources Ltd. completed programs of soil and rock sampling, geological mapping, 115.0 line kilometres of ground induced polarization surveys and 1940.0 line kilometres of airborne magnetic surveys on the area as the Joy property.

Bibliography
EMPR OF 2001-01; 2004-4
EMPR BULL 86
EMPR EXPL 1975-E163-E167; 1976-E175-E177; 1977-E216-E217; 1978-E244-E246; 1979-265-267; 1980-421-436; 1982-330-345; 1983-475-488; 1984-348-357; 1985-C349-C362; 1986-C388-C414; 1987-C328-C346; 1988-C185-C194
EMPR FIELDWORK 1980, pp. 124-129; 1981, pp. 122-129, 135-141; 1982, pp. 125-127; 1983, pp. 137-138, 142-148; 1984, pp. 139-145, 291-293; 1985, pp. 167-169, 299; 1987, pp. 111, 114-115; 1989, pp. 409-415; 1991, pp. 207-216
EMPR GEM 1971-63-71; 1973-456-463
EMPR GEOLOGY 1977-1981, pp. 156-161
EMPR PF (Photogeologic Interpretation Map of the Northern Omineca area, (Oct. 1964), Canadian Superior Exploration Limited-in 94E General File)
EMPR PFD 16906, 861650
GSC BULL 270
GSC OF 306; 483
GSC P 80-1A, pp. 27-32
W MINER April, 1982
N MINER October 13, 1986
N MINER MAG March 1988, p. 1
GCNL #189(Sept.29), 1983; #195(Oct.10), 1984; #28(Feb.28); #71(Apr.12), 1985; #23(Feb.1); #111(Jun.11); #165(Aug.27), 1986
IPDM Nov/Dec 1983
ECON GEOL Vol.86, pp. 529-554, 1991
MIN REV September/October, 1982; July/August, 1986
WIN Vol.1, #7, June 1987
Rebagliati, C.M., Titley, E. (2020-05-14): Technical Report Summarizing Exploration Work on the JOY Project, Toodoggone Region, British Columbia, Canada
Rebagliati, C.M., Titley, E. (2020-05-14): Technical Report Summarizing Exploration Work on the JOY Project, Toodoggone Region, British Columbia, Canada (Revision)

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