MINERAL INVENTORY FILE NO.
846
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PRODUCT
Zinc
NTS AREA
63K16SE
REF.
Zn06
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NAME OF PROPERTY
Lost Lake
OWNER OF OPERATOR ADDRESS
Hudson Bay Mining and
Smelting Co. Ltd.
1906-201 Portage Ave.
Winnipeg, MB, R3B 3K6
OBJECT LOCATED
Location 59, Geological Survey of Canada, 1993.
MINING DIVISION
The Pas
Uncertainty (m)
100
Latitude
5549'55
Longitude
10006'30
Northing
6076300
UTM Zone
14U
Easting
128900
L.S./Quarter Section
9
Section
27
Township
67
Range
18WPM
DESCRIPTION OF DEPOSIT
The deposit is situated within Precambrian Amisk Group volcanic and related intrusive rocks of the Flin Flon-Snow Lake greenstone belt. Geologically it is similar to the Ghost Lake and Chisel Lake deposits (See: Mind No. 829 and No. 828).
The footwall of the deposit consists of a 100-250 m thick unit of interlayered massive dacite tuff and lapilli-tuff. A 0.5-10 m thick unit of felsic breccia overlies the massive sulphides (Fedikow et al, 1989). The deposit appears to occur in a silcic volcaniclastics near the contact with mafic volcaniclastics (Gale et al, 1980).
ASSOCIATED MINERALS OR PRODUCTS OF VALUE
Copper (Cu), gold (Au), silver (Ag) and lead (Pb)
HISTORY OF EXPLORATION AND DEVELOPMENT
The deposit is located near Potten Lake, 0.4 km southwest of the Ghost Lake mine and 0.8 km southeast of the Chisel Lake mine (See: Mind No. 828).
The property had been staked as Ox No.25 by Charles Asmes and assigned to Hudson Bay Exploration and Development Company Ltd. (HBED) in 1955. The property was assigned to and leased as M-7181 for 21 years by Hudson Bay Mining and Smelting Co. Ltd. (HBM&S) in 1960.
The deposit was outlined as two small lenses during diamond drilling “to test a structural interpretation of the Lost Lake area, near the Ghost Lake mine” HBM&S in 1974 (HBM&S Annual Report, 1974)The mineralization contained in the two lenses compromised 224 300 tonnes (t). One lens, containing 84 000 t with a grade of 2.91 g/t (0.085 oz/ton) Au, 81.3 g/t (2.37 oz/ton) Ag, 1.45% Cu and 4.9% Zn, and 1.0% Pb was to be mined from the Ghost Lake decline.
In 1977, a drive was started from the 200 m (650 ft.) level at Chisel Lake toward Ghost Lake, and a decline from Ghost Lake toward the Lost Lake zone (HBM&S Annual Report, 1977). The haulage connecting Chisel Lake to Ghost Lake was completed in 1978, and development of the Lost Lake ore zones continued, and production was scheduled for 1979 (HBM&S Annual Report, 1978). Production, however, was not reported in 1979 (HBM&S Annual Report, 1979).
On June 28, 1979, the new crusher and concentrator at HBM&S’ Stall Lake mine (See: Mind No. 480) officially opened. Developmental ore from Lost Lake was transported underground to the Chisel Lake mine and then trucked to the Snow Lake mill where a “(Chisel) circuit completes some 1000 tons (907 t) per day of combined Chisel-Ghost Lake ore at an average grade of 9.5% Zn, 0.5% Cu and 0.7% Pb” (Northern Miner, June 28, 1979).
As of January 1, 1981, combined proven reserve of Ghost Lake and Lost Lake orebodies were 332 000 t grading 1.08% Cu, 0.3% Pb, 6.5% Zn, 32.5 g/t (0.95 oz/ton) Ag, and 1.2 g/t (0.035 oz/ton) Au.
The lease was renewed in 1981, and production continued with the Ghost Lake mine. It is assumed that the Lost Lake production ceased in 1988 when Ghost Lake closed.
HISTORY OF PRODUCTION
N/A
REFERENCES
Fedikow, M.A.F., Ostry, G., Ferreria, K.J., and Galley, A.G. 1989: Mineral Deposits and Occurences in the File Lake Area, NTS 63K/16; Manitoba Energy and Mines, MDS No. 5, p. 119.

Gale, G.H., Baldwin, D.A. and Koo, J. 1980: A Geological Evaluation of Precambrian Massive Sulphide Deposit Potential in Manitoba; Manitoba Mineral Resources Division, ER 79-1, p. 40.

Harrison, J.F. 1949: Geology and Mineral Deposits of the File-Tramping Lake Area, Manitoba; Geological Survey of Canada Memoir 250.

Laughlin, W.H. 1982: Canadian Reserves as of January 1, 1981 of Copper, Nickel, Lead, Zinc, Molybdenum, Silver, Gold; Dept of E.M.R., Mineral Bulletin MR191, p. 17.

McIntosh, J.A. and Cranstone, D.A. 1977: Canadian Reserves of Copper, Nickel, Lead, Zinc, Molybdenum, Silver, Gold as of January 1, 1976; Dept. of E.M.R., Mineral Bulletin MR174, p. 13.

Manitoba Mineral Resources Division: Corporation File, Hudson Bay Mining and Smelting Co. Ltd.

Northern Miner 1979: Northern Miner, June 28, 1979.

Price, D. 1977: Tour Guide, Flin Flon-Snow Lake Geology, October 3-6, 1977; Hudson Bay Mining and Smelting Co. Ltd., p. 20.

Williams, H. 1966: Geology and Mineral Deposits of the Chisel Lake Map-Area, Manitoba; Geological Survey of Canada Memoir 342.
MAP REFERENCES
Gale, G.H., Baldwin, D.A. and Koo, J. 1980: Figure 22, Geological Setting of the Chisel Lake-Ghost Lake Deposits; accompanying Manitoba Mineral Resources Division ER 79-1.

Harrison, J.F. 1949: Map 929A, File Lake; 1:63 360 scale, geological map, accompanying Geological Survey of Canada Memoir 250.

Manitoba Mines Branch and Geological Survey of Canada 1965: Map 7024G, Cormorant Lake; Manitoba Mines Branch and Geological Survey of Canada, aeromagnetic map, scale 1:63 360.

Mining Recording, Manitoba Mineral Resources Division 1955: Map SE16, 63K, Claim Map Series; Manitoba Mineral Resources Division, claim map, scale 1: 31 680.

Surveys and Mapping Branch 1985: Map 63 K/16, File Lake; Surveys and Mapping Branch, Ottawa, topographic map, scale 1:50 000.

Williams, H. 1966: Map 1180A, Chisel Lake; 1:12 000 scale, geological map, accompanying Geological Survey of Canada Memoir 342.
URL
N/A
Images
849-1
Word Document
http://www2.gov.mb.ca/Itm-cat/0846LostLake.doc
REMARKS
N/A
NOTES
N/A
Compiled/Revised by:
JDB JDB JJJ
Date
08-79 08-83 08-02