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File Created: 09-Jun-2022 by Karl A. Flower (KAF)
Last Edit:  24-Jun-2022 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name DB Mining Division Alberni, Nanaimo
BCGS Map 092L034
Status Showing NTS Map 092L06E
Latitude 050º 21' 05'' UTM 09 (NAD 83)
Longitude 127º 14' 24'' Northing 5579178
Easting 625207
Commodities Copper, Cobalt, Silver, Gold Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The DB occurrence is located at an elevation of approximately 330 metres on an east-facing slope, west of the Benson River and approximately 3.4 kilometres northeast of Merry Widow Mountain.

Regionally, the area is underlain by diabase and basaltic intrusive rocks of the Upper Triassic to Lower Jurassic Bonanza Group, limestone of the Upper Triassic Quatsino Formation (Vancouver Group) and limestone, mudstone and siltstone of the Upper Triassic Parson Bay Formation (Vancouver Group). Gabbro to quartz diorite of the Lower to Middle Jurassic Island Plutonic Suite are exposed to the west.

Locally, a gossanous fault structure in limestone, exposed along a roadcut, hosts copper, cobalt, silver and gold values.

In 2020, a grab sample (CM X545552) assayed 3.59 grams per tonne gold, 71.9 grams per tonne silver, 12.05 per cent copper and 0.042 per cent cobalt (Assessment Report 39420).

Work History

The area has been explored in conjunction with the nearby Merry Widow (MINFILE 092L 044) mine and a complete regional exploration history can be found there.

Bibliography
EMPR MAP Preliminary Geological Map, Alice Lake-Benson Lake Area,
Jeffery W.G., (1962)
EMPR PF (various maps in 092L 091, Independent)
GSC MAP 4-1974; 255A; 1552A
GSC OF 9; 170; 463
GSC P 69-1A; 70-1A; 72-44; 74-8
GSC SUM RPT 1918B; 1929A, p. 126
Carson, D.J.T., (1968): Metallogenic Study of Vancouver Island with emphasis on the Relationship of Plutonic Rocks to Mineral Deposits, Ph.D. Thesis, Carleton University, Ottawa

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