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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  20-Sep-1990 by Garry J. Payie (GJP)

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NMI 092B13 Fe1
Name LADY A (A ZONE) Mining Division Victoria
BCGS Map 092B091
Status Developed Prospect NTS Map 092B13W
Latitude 048º 55' 26'' UTM 10 (NAD 83)
Longitude 123º 57' 10'' Northing 5419432
Easting 430206
Commodities Iron, Magnetite Deposit Types G01 : Algoma-type iron-formation
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Lady A deposits are underlain by cherty sediments of the Upper Devonian McLaughlin Ridge Formation, Sicker Group. Locally, the sediments strike northwest and dip to the northeast at 50 to 60 degrees.

The Lady A (A zone) deposit is a stratabound taconite deposit composed of grey chert and red jasper hosting bands of very fine grained magnetite with minor specularite. The deposit consists of two lenses which outcrop along strike for a distance of 105 metres, attaining widths of up to 18 metres. An average thickness, determined from drilling, is less than 9 metres. The estimated reserves are 366,000 tonnes with an average grade of 25 per cent iron (Minister of Mines Annual Report 1956, page 135).

EMPR AR *1956-135
EMPR ASS RPT *12525, *15136, *15881
EMPR FIELDWORK 1987, pp. 81-91
EMPR OF 1988-8; *1988-28, p. 129
EMPR PF (*Report on Exploration for Iron Ore, Ladysmith Devolopment Ltd., A.F. Buckham, December 1953; Location map and plans of the deposits, 1953)
GSC MAP 42A; 1386A; 1553A
GSC MEM 13; 36; 96
GSC OF 463
GSC P 72-44; 75-1A, p. 23; 79-30
Carson, D.J.T. (1968): Metallogenic Study of Vancouver Island with Emphasis on the Relationship of Plutonic Rocks and Mineral Deposits, Ph.D. Thesis, Carleton University
Hudson, R. (1997): A Field Guide to Gold, Gemstone & Mineral Sites of British Columbia, Vol. 1: Vancouver Island, p. 112