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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  11-Feb-2020 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name DAVNE, DAWN, ZIP 1-2, GUS 1 Mining Division Nelson
BCGS Map 082F004
Status Past Producer NTS Map 082F03E
Latitude 049º 02' 59'' UTM 11 (NAD 83)
Longitude 117º 14' 43'' Northing 5433012
Easting 482078
Commodities Gold, Silver, Lead, Zinc, Copper Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Omineca Terrane Ancestral North America, Quesnel
Capsule Geology

The Davne occurrence is located in the southeastern headwaters of Rosebud Creek, approximately 1.2 kilometres east of the northern end of Rosebud Lake and at an elevation of 960 metres.

Regionally, the area is underlain by fine clastic sediments of the Lower to Middle Ordovician Active Formation, sediments and carbonate rocks of the Middle Cambrian Nelway Formation, undivided sedimentary rocks of the Cambrian Laib Formation and quartz arenite sedimentary rocks of the Neoproterozoic to Lower Cambrian Hamill Group. To the north these have been intruded by granodioritic rocks of the Cretaceous Anstey pluton, and a small stock of syenitic to monzonitic intrusive rocks of the Eocene Coryell Plutonic Suite outcrops to the southeast.

Locally, a fissure vein has been explored by two adits and two opencuts over a strike length of approximately 40 metres and is the northwestern strike extension of the Lucky Strike (MINFILE 082FSW062) vein with the same mineralization and general setting.

The vein strikes north 70 degrees west with a steep dip and is associated with the northeast-trending Black Bluff fault. It contains a quartz gangue that carries galena, tetrahedrite, pyrite, sphalerite and some chalcopyrite. The width is averages 5 centimetres but very locally it may be as wide as 50 centimetres. The vein is hosted within dolomites of the Middle Cambrian Nelway Formation as well as phyllites and argillites of the Lower Cambrian Laib Formation. Near surface and to a depth of approximately 5 metres the vein is oxidized, and alteration minerals are present. These include cerussite, chalcocite, covellite, malachite and azurite. Cerussite commonly occurs as veinlets within galena and exhibits ragged replacement outlines. Many areas of tetrahedrite are almost entirely replaced by chalcocite and covellite. No free gold or silver are reported. Narrow, dioritic dikes are reported to cut the sediments in the area of Davne workings.

In 1988, a chip sample (1142) from a 10-centimetre wide quartz vein in brecciated dolomite assayed 0.22 gram per tonne gold and 2.7 grams per tonne silver (Assessment Report 18364).

In 1996, a rock sample (MK-96-43) of sericitized silty limestone, taken between a former trench and the swamp to the southeast, assayed 0.274 gram per tonne gold and 3.1 grams per tonne silver (Assessment Report 24748).

In 2003, a rock sample (MK-03-34) quartz-carbonate vein material from the dump of an opencut, located approximately 175 metres southeast of the adit, assayed 0.387 gram per tonne gold (Assessment Report 27249).

In 2007, a sample from the south wall of the workings is reported to have assayed 0.03 gram per tonne gold and greater than 100 grams per tonne silver (Assessment Report 32681).

In 2016, a sample limestone with quartz-carbonate veinlets hosting minor galena from the dump of the lower adit was reported to have assayed 2.05 grams per tonne gold, 165.5 grams per tonne silver and 3.27 per cent lead (Assessment Report 36135).

The area was first staked in 1936 by G. Birtsch with a short inclined shaft and at least two opencuts being developed. Minor production occurring in 1938 yielded 3.6 tonnes of ore producing 193 kilograms of lead, 68 kilograms of zinc, 342 grams of gold and 5381 grams of silver (Assessment Report 18364). A lower, southeast-trending adit is reported approximately 100 metres northwest of the main inclined shaft.

In 1961, the claims were re-staked by L. DeKock. In 1981, a ground magnetic and electromagnetic survey was completed on the area as the Tur claims. In 1982 and 1983, further programs of ground geophysical surveys, geochemical sampling and prospecting was completed on the area as the Bine and T Fox claims. In 1988, International Corona Corp. completed a program of geological mapping and rock, silt and soil sampling on the area as the Zip 1-2 and Lone Silver 1-3 claims.

During 1994 through 2018, M.A. Kaufman conducted programs of rock and soil sampling, geological mapping, 14.8 line-kilometres of ground electromagnetic and magnetic surveys, a 0.3 line-kilometre gravity survey, minor trenching and two diamond drill holes, totaling 189.0 metres, on the area as the Gus claims.

Bibliography
EMPR AR *1938-A36,E17-E21
EMPR BC METAL MM00982
EMPR BULL 41; 109
EMPR EXPL 1980-51
EMPR FIELDWORK 1987, pp. 19-30; 1988, pp. 33-43; 1989, pp. 11-27; 1990, pp. 9-31
EMPR OF 1988-1; 1989-11; 1990-8; 1990-9; 1991-2; 1991-16
EMPR PF (Unknown (1938-11): Lucky Strike - Composite Claim and Surface Workings - Nelson)
GSC MAP 299A; 1090A; 1091A; *1145A
GSC MEM 172; 308, pp. 158,175
GSC OF 1195

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