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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  24-Jul-2023 by Larry Jones (LDJ)

Summary Help Help

NMI 094D2 Cu3
Name CHACO BEAR, DAVE, RON, DAVE 3, PETEKA 4, DAVE 1-8, PETEKA 1-4 Mining Division Omineca
BCGS Map 094D016
Status Showing NTS Map 094D02W
Latitude 056º 08' 32'' UTM 09 (NAD 83)
Longitude 126º 55' 49'' Northing 6223850
Easting 628600
Commodities Copper, Gold, Silver Deposit Types I06 : Cu+/-Ag quartz veins
D03 : Volcanic redbed Cu
L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Dave occurrence is located near the Driftwood River, approximately 3 kilometres due south of Mount Coccola. The showing occurs on the 1985 Peteka 4 claim and the 1968 Dave 3 claim (Property File - Canadian Superior Exploration Limited, Maps from Company Files, c. 1973).

The area is underlain by Lower Jurassic Telkwa Formation (Hazelton Group) volcanics. The volcanics predominantly consist of tuffs, agglomerates and grey to green andesitic rocks. Minor porphyritic (plagioclase and/or hornblende) flows and interflow sedimentary rocks are also present on the claims. Narrow quartz feldspar porphyry dykes, 1 to 3 metres wide, intrude the volcanic rocks and strike northeast. The dykes are fine to medium grained and are possibly related to the Eocene Kastberg Intrusions (Assessment Report 14424). The geological setting is the same as the Bearnx occurrence (refer to 094D 003 for regional geology, structure, and alteration).

Chalcopyrite, specular hematite and calcite occur in quartz veins and localized shear zones. These are hosted in chloritized mafic volcanics and fine to medium-grained andesites. The veins are irregular, fracture controlled and up to 25 millimetres in width. Mineralization is found at various places downstream of the showing for approximately 1 kilometre. Two of the best samples assayed 12.2 per cent copper, 6.1 grams per tonne gold, and 8.4 grams per tonne silver and 5.2 per cent copper, 14.9 grams per tonne gold and 11 grams per tonne silver, respectively (Assessment Report 14687). These samples were taken approximately 700 metres downstream of the Dave occurrence.

In 1997, Imperial Metals Corporation drilled four holes, CB-97-9 and 10, CB-97-14, and CB-97-15 were drilled from three sites to test mineralization exposed in outcrop within the Driftwood River, at depth and along strike (Figures 31 to 34 Assessment Report 25270). Surface chip sampling of the Dave/Ron zone returned assay highs of up to 0.26 gram per tonne gold and 1.4 per cent copper with a number of samples exceeding 0.1 per cent copper. Grab samples of veins similar to those seen at the main outcrop, both to the north and south, returned values of up to 3.36 grams per tonne gold, 4.3 grams per tonne silver and 4.3 per cent copper (Assessment Report 25270).

Cominco Ltd. held the Dave 1-8 claims in 1968; the claims were in part a restaking of the former Bobnx, and Bearnx groups. Work during the year included an electromagnetic survey over 4.5 kilometres. The Drift 1-22 claims in this vicinity were held in 1974 by Canadian Nickel Company Limited. Geological mapping was reported.

See Bearnx (094D 003) for further related work history details.

Bibliography
EMPR AR 1968-119
EMPR ASS RPT *1616, 8335, *14424, *14678, 22958, *24882, *25270, *29590, 31325, 33150, 33850, 36041, *38636
EMPR EXPL 1986-C380,C381
EMPR GEM 1974-297
EMPF OF 1994-14
EMPR PF (In 094D General - *Canadian Superior Exploration Limited, Maps from Company Files, c. 1973; see Mount Polley, 093A 008 - Imperial Metals Corporation information folder)
GSC MAP 962A
GSC MEM 251
GSC OF 341
GSC P 76-29

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