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File Created: 16-Jun-1988 by Garry J. Payie (GJP)
Last Edit:  04-Apr-2022 by Karl A. Flower (KAF)

Summary Help Help

BCGS Map 104B060
Status Prospect NTS Map 104B09E
Latitude 056º 34' 39'' UTM 09 (NAD 83)
Longitude 130º 11' 38'' Northing 6271000
Easting 426650
Commodities Gold, Silver, Copper Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The dominant host rocks at the Ridge and AW zones are andesitic(?) volcanic breccias. Conspicuous augite phenocrysts in these rocks are diagnostic of a stratigraphic position within the Stuhini Group.

The AW zone is situated at the top of the West Nunatak and is underlain by sedimentary rocks and volcanic rocks. The zone is exposed within a series of trenches and comprises quartz veining with up to 20 per cent chalcopyrite and galena within silicified and sericitized wallrock. Surface samples collected from this zone by Tantalus Resources Ltd. assayed up to 178.29 grams per tonne gold and 936 grams per tonne silver (5.2 opt Au and 27.3 opt Ag) (Assessment Report 23686). In 1991, five diamond drill holes totalling 141 metres were collared to test the extent of mineralization within the AW zone. Of the five drill holes TC91-1 was the only hole to intersect mineralization and assayed 5.45 grams per tonne gold and 237.95 grams per tonne silver over 4.7 metres (Assessment Report 21318, 23686). Mineralization is characterized by up to 20 per cent galena, 15 per cent chalcopyrite and 10 per cent pyrite within sericite+calcite altered volcanic rocks.

Chalcopyrite and pyrite are reported to occur in outcrop on the eastern edge of the Johnstone Icefield in the same vicinity as the Ridge and AW showings; this MINFILE occurrence was previously named Johnstone. (Open File 1988-4).

EMPR FIELDWORK 1987, pp. 199-209
EMPR OF *1988-4
EMPR PF (Geology Map-1:31,250 Scale - Newmont Exploration of Canada Ltd., 1960's)
GSC MAP 9-1957; 1418A
GSC P 89-1E, pp. 145-154
Pardoe, J. (2016-05-21): NI43-101 Technical Report on the Treaty Creek Property
P&E Mining Consultants Inc. (2021-04-23): Technical Report and Initial Mineral Resource Estimate of the Treaty Creek Gold Property, Skeena Mining Division, British Columbia, Canada