British Columbia Ministry of Energy, Mines and Natural Gas and Responsible for Housing
News | The Premier Online | Ministries & Organizations | Job Opportunities | Main Index

MINFILE Home page  ARIS Home page  MINFILE Search page  Property File Search
Help Help
File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  21-May-2020 by George Owsiacki (GO)

Summary Help Help

NMI 104I2 Cu2
Name RIDGECREST, DANEVA, KUTCHO CREEK, KUTCHO 6, DOVER, BODEN LAKE Mining Division Liard
BCGS Map 104I018
Status Showing NTS Map 104I02E
Latitude 058º 11' 29'' UTM 09 (NAD 83)
Longitude 128º 35' 06'' Northing 6450093
Easting 524399
Commodities Copper, Silver, Antimony, Lead, Zinc, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Cache Creek, Overlap Assemblage
Capsule Geology

The Ridgecrest occurrence is located 5 kilometres west of Kutcho Creek, about 77 kilometres east-southeast of Dease Lake.

The area of the showing is mapped as Lower Jurassic Inklin Formation which includes phyllitic slate, greywacke and conglomerate (Geological Survey of Canada Open File 2779). The Inklin Formation has recently been assigned to the Laberge Group (Overlap Assemblage). Locally, chalcocite is associated with vein-quartz in a strong fracture zone on the crest of a ridge west of Kutcho Creek (Geological Survey of Canada Paper 68-1A, page 27).

The Boden Lake occurrence (104I 129) is located 800 metres to the northeast, where a prominent gossan is exposed in cliffs southeast of Boden Lake. Locally, a strongly pyritic, silicified felsic tuff occurs over 5 metres of stratigraphic thickness. In 2009, sampling returned up to 71.8 parts per million (ppm) copper, 6.6 ppm lead, 4.0 ppm zinc, 0.17 ppm silver, and 0.1 ppm gold (Assessment Report 31282).

The Ridgecrest showing comprises mineralized quartz veins that occur within the upper part of the Upper Triassic Sinwa Formation (Stuhini Group), near the hinge of a major anticline. The mineralized veins were mentioned by Gabrielse (Geological Survey of Canada, 1968), but there is no record indicating that there was any significant work performed on them. TheSinwa Formation limestone in this area is host to numerous variably oriented quartz veins. Only a small percentage of the veins are mineralized, but small pods of mineralization are scattered over the entire 300 metre strike length of good Sinwa exposures on the ridge top. Mineralization comprises small pockets of fine-grained sulphides, mainly pyrite, chalcocite and galena, accompanied by malachite and azurite. In 2011, a grab sample from one of these mineralized pockets assayed greater than 10,000 ppm copper, 7652.8 ppm lead, 1239 ppm zinc, greater than 100 ppm silver, 96.3 parts per billion gold, and greater than 2000 ppm antimony (sample 11PSC140, Table 1; Fieldwork 2011, page 95).

In 2016, a grab sample (Grab 3 at UTM coordinates 524621E, 6450367N) of milky white quartz vein with malachite and azurite coatings and possible sulphide minerals assayed 0.698 per cent copper, 232 grams per tonne silver, 0.284 per cent antimony, 826.5 parts per million (0.08 per cent) lead, and 814 parts per million (0.08 per cent) zinc (Assessment Report 37071).

In 1967, the Ridgecrest showing was originally discovered during a regional mapping program by the Geological Survey of Canada.

In 1976, a large group of claims (Kutcho 1-6) were staked in the area by Noranda Exploration Company, Limited. The showing occurs within this claim group near the western boundary. Noranda worked these claims until 1985, although the portion covering this showing was dropped in 1983. Numerous geophysical surveys were done including airborne and ground magnetic surveys, electromagnetic surveys and induced polarization. The property was mapped and at least three drillholes were put down a few kilometres northeast of the Ridgecrest showing. See Kutcho Creek deposit (104I 060) located 13.3 kilometres east, or Assessment Report 31282 for a complete exploration history.

In 2016, on behalf of Jedway Enterprises Ltd., two days were spent prospecting on the DanEva property which covers the Blueridge (104I 145) and Ridgecrest occurrences. A total of five rock samples were taken of mineralization at the Blueridge and Ridgecrest showings.

Bibliography
EMPR ASS RPT 6210, 6686, 9170, 12961, 13746, 14897, 16132, 31282, *37071
EMPR OF 1996-11
EMPR FIELDWORK 2011, pp. 75-98
GSC MAP 9-1957; 29-1962; 1418A; 1712A
GSC OF 610; 2262; 2779
GSC P *68-1A, p. 27; 78-1A, pp. 25-27
GSC BULL 504

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY