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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  08-Jul-2020 by Nicole Barlow (NB)

Summary Help Help

NMI
Name SWEDE, GOLDSMITH (L.4738), GOLD HILL (L.4739), GREAT NORTHERN MINES Mining Division Slocan
BCGS Map 082K035
Status Past Producer NTS Map 082K06E
Latitude 050º 23' 58'' UTM 11 (NAD 83)
Longitude 117º 07' 53'' Northing 5583053
Easting 490662
Commodities Gold, Lead, Zinc, Copper, Arsenic, Silver Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
I01 : Au-quartz veins
Tectonic Belt Omineca Terrane Kootenay, Ancestral North America
Capsule Geology

The Swede property is situated at 1160 metres elevation above sea level on the south bank of Poplar Creek in the Slocan Mining Division. The property consists of two Reverted Crown grants (Lots 4738 and 4739).

Regionally, the area lies within the Selkirk Mountains of southeastern British Columbia. The occurrence is within the Kootenay Arc, a curving belt of highly deformed metasedimentary and metavolcanic rocks which includes the Upper Proterozoic Horsethief Creek Group, the Upper Proterozoic to Lower Cambrian Hamill Group, the Lower Cambrian Badshot Formation, and the Paleozoic Lardeau and Milford groups. The volcano-sedimentary sequence is intruded by numerous Paleozoic to Mesozoic granitoid plutons.

The Lardeau River area of the Selkirk Mountains is mainly underlain by massive pillow lavas, volcanic breccia and green phyllitic rocks of the Index Formation and by grey-green mica schist of the Broadview Formation. Grey phyllitic rocks and marble of the Milford Group are exposed near the edges of the Mesozoic Mobbs Creek, Rapid Creek and Poplar Creek stocks. All rocks have undergone regional metamorphism to middle or upper greenschist facies. Rocks of the Milford Group have also been affected by thermal metamorphism (Geological Survey of Canada Bulletin 193).

On the Swede property carbonaceous phyllitic rocks of the Index Formation are cut by Mesozoic meta-andesite and metadiorite dikes. The dikes are fine grained, massive and usually contain disseminated pyrite. Quartz veins carrying pyrite, arsenopyrite and ankerite cut black carbonaceous phyllite. Some of the arsenopyrite is very coarse grained. A massive sulphide vein, 10 centimetre wide, is hosted within a meta-andesite dike. The vein consists of galena, sphalerite, chalcopyrite and pyrite. Free gold occurs in the vein with lead sulphate and carbonate where the sulphides have been leached (Geological Survey of Canada Memoir 161).

In 1904, Great Northern Mines mined 8 tonnes of high-grade ore from the occurrence to produce 778 grams of gold.

In 1980 and 1981, Westmin conducted an exploration on the property containing the occurrence. The work included geology, soil geochemistry, trenching, and 6 diamond drill holes totalling 409 metres. Highlighted drill results included hole 81-5 at two intersects. The first at 49.2 metres depth for 0.9 metres grading 1.37 grams per tonne gold, and the second at 56.7 metres depth for 0.9 metres grading 43.66 grams per tonne gold (Dandy, L. (2017-07-28): Technical Report on the Goldsmith Property).

In 2003 and 2004, Cream Minerals conducted exploration programs consisting of mapping and sampling of historic workings. Highlighted results at the Goldsmith occurrence included sample 06GS19, a grab sample grading 197.16 grams per tonne gold, 10.6 grams per tonne silver, and 0.35 percent arsenic (Dandy, L. (2017-07-28): Technical Report on the Goldsmith Property).

In 2004 to 2006, Cream Minerals completed a soil sampling program and an airborne magnetic and electromagnetic survey.

In 2008, Cream Minerals completed nine excavator trenches on the property, focusing on the Bullock and Goldsmith areas.

In 2016 and 2017, Black Tusk Resources Inc. completed a ground geophysical survey of the property containing the occurrence.

Bibliography
EMPR AR 1903-112,114,116,126; 1904-118; 1908-101; 1910-101;
1914-320,323; 1929-336
EMPR ASS RPT 8483, 8862, *9801
EMPR BC METAL MM00608
EMPR INDEX 3-198 (Great Northern Mines)
GSC BULL 193
GSC MAP 235A; 1277A
GSC MEM *161, p. 41
GSC OF 432; 464
GSC SUM RPT *1903, p. 75
*Dandy, L. (2017-07-28): Technical Report on the Goldsmith Property

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