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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  04-Aug-2020 by Karl A. Flower (KAF)

Summary Help Help

NMI 103P12 Cu6
Name SURPRISE, VELVET, OURAY, CARPENTER Mining Division Skeena
BCGS Map 103P073
Status Showing NTS Map 103P12E
Latitude 055º 42' 23'' UTM 09 (NAD 83)
Longitude 129º 31' 38'' Northing 6173528
Easting 466870
Commodities Gold, Silver, Copper, Lead, Zinc Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Surprise showing is located 0.5 kilometre west of the Kitsault River, 25.5 kilometres north of the town of Alice Arm. This showing was extensively explored by Dolly Varden Mines in the early 1970s for copper and precious metals.

The area is underlain by a sequence of volcanics and sediments of the Upper Triassic Stuhini Group and the Lower-Upper Jurassic Hazelton Group. The sequence is folded into the doubly plunging, north-northwest trending Kitsault River syncline. This sequence has been regionally metamorphosed to greenschist facies.

The Surprise occurrence is hosted in an altered pyritic andesite of the Hazelton Group similar to that of the "Copper Belt" to the west. The andesite is overlain by argillite, siltstone and wacke to the north and east.

This showing consists of a 3.7 metre wide northeast striking zone containing quartz-calcite-barite veins and lenses up to 6.0 metres wide mineralized with blebs and stringers of pyrite, chalcopyrite, galena and sphalerite with traces of native silver. Most of the mineralization is contained in two veins, one striking 060 degrees for 73 metres and a second striking 020 degrees for 76 metres. A 1.5 metre chip sample assayed 13.7 grams per tonne gold, 120 grams per tonne silver and 2.25 per cent copper (Western Miner - August 1970, page 41).

The principal showings are situated at 487 metres elevation in a number of old pits and trenches close to an old cabin (ca. 1970). The main cut, 30 metres south of the cabin, is 12 metres long and oriented east. In 1970, Dolly Varden Mines Ltd. geologically mapped surface workings and completed a geochemical soil survey collecting 500 samples covering 34 claims.

During 2010 through 2019, Dolly Silver Corporation explored the area as apart of the Dolly Varden property. A complete property exploration history can be found at the Dolly Varden (MINFILE 103P 188) occurrence.

Bibliography
EMPR AR 1916-78; 1918-67; 1926-81,82; 1935-B24,B25; 1951-98; 1954-84
EMPR ASS RPT *2887, 7098, 21562
EMPR BULL 63
EMPR ENG INSP (Mine Plans *61646 (1953))
EMPR FIELDWORK 1985, pp. 219-224,327-330; 1988, pp. 233-240; 1990, pp. 235-243; 2005, pp. 1-4
EMPR GEM *1970-81-86; 1971-125; 1972-508
EMPR MAP 8
EMPR OF 1986-2; 1994-14
EMPR PF (Dolly Varden Mines Ltd. Annual Reports 1970,1972; Mitchell, M.A. (1973): Report; Pearson, W.N. (1986): Report)
EMR MP CORPFILE (Dolly Varden Mines Ltd.)
GSC MAP 307A; 315A; 1385A
GSC MEM 175, p. 75
GSC OF 864; 2996; 3453
GCNL #147, 1970; #10, 1971
W MINER Aug. 1970, pp. 39-42
Devlin, B.D. (1987): Geology and Genesis of the Dolly Varden Silver Camp, Alice Arm Area, Northwestern British Columbia, University of British Columbia M.Sc. Thesis
Garrow, T. (2011-09-05): Technical Report - Geology and Mineral Exploration of the Dolly Varden Property
Higgs, A.A. (2015-03-18): 2015 Technical Report for the Dolly Varden Property
Higgs, A.A. (2015-05-01): Amended 2015 Technical Report for the Dolly Varden Property
Higgs, A.A. (2015-09-30): 2015 Technical Report for the Dolly Varden Property
Turner, A.J. (2019-05-08): Technical Report and Mineral Resource Update for the Dolly Varden Property
EMPR PFD 750693

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