MINERAL
INVENTORY FILE NO.
660
______________________________________________________________________________________________________
PRODUCT
COPPER
NTS AREA
63K12NW
REF.
CU4
______________________________________________________________________________________________________
NAME OF PROPERTY
SCHIST LAKE MINE
OWNER OF
OPERATOR ADDRESS
1978-Hudson Bay Mining and Smelting Co., Limited
Flin Flon,
MB
OBJECT LOCATED
Showing
MINING
DIVISION
__________
Latitude
54°43.18N
Longitude
101°49.56’W
Uncertainty
(m)
50
UTM Zone
_____
Easting
_______
Northing
_______
L.S./Quarter
Section
___
Section
___
Township
66
Range
29 WPM
DESCRIPTION OF
DEPOSIT
The deposit occurs east of Ross Lake on the eastern limb of the
anticline. The Aphebian orebodies are found in sericite-carbonate schists,
perhaps derived from quartz porphyry in andesite flows. The orebodies are 1 000
feet apart along strike and are controlled by northwest trending shears. The
parallel zones dip vertically and plunge at 60°. Below 2 000 feet the plunge
flattens to 40°-50°.
The north zone contains three lenses which have maximum
lengths of 200 feet along strike and 1 000 feet along plunge. The zone occurs
between the 800 and 2 1450 foot level. The four lenses of the south zone are 200
to 400 feet long strike and 1 000 to 2 000 long along plunge. The south zone
extends to 3 150 feet from surface. Each zone is 30 to 35 feet
wide.
Sphalerite occurs toward the stratigraphic footwall, particularly with
pyrite in the north zone. Geological interpretation of published data indicates
that massive chalcopyrite and sphalerite occur in the south zone. Disseminated
chalcopyrite and sphalerite are reported in the eastern part of the south zone.
Chalcopyrite is more prevalent toward the hangingwall of the deposit.
Silver
and gold are also extracted. Galena and enargite have been found.
ASSOCIATED
MINERALS OR PRODUCTS OF VALUE
Zinc, silver, gold
HISTORY OF
EXPLORATION AND DEVELOPMENT
The Schist Lake Mine is located on the northwest arm of
Schist Lake, 5.6 km southeast of Flin Flon. The mine is at the end
of the road leading south from Channing.
Ryan (23145) was staked by Isidore
Dion in 1915. Two years later, it was assigned to Standard Trust Co. Surface
work was done on the claim prior to the issuance of Lease 19 in 1919.
A
series of assignments then took place:
Date To
Jan. 10, 1928 Flin Flon
Mines Limited
Oct. 30, 1928 HBMS
Sept. 14, 1940 Emergency Metals
Limited
Dec. 31, 1946 HBMS
The lease was renewed in 1940. Diamond
drilling during the winter of 1946-1947 located an orebody of 200 000 to 300 000
tons of unreported grade. The new mine was announced in July 1947.
Sinking of a 3-compartment shaft commenced that November. Surface lease 84 was
taken out in 1948. By 1950 proven reserves were 270 000. Development ore was
stockpiled then shipped to Flin Flon for treatment. A winze was started on the
1100 foot level, 1 300 feet south of the mine shaft. Full production
began in august 1954 and reserves were then estimated at 264 000.
Production
was suspended in August 1957 to permit deepening of the mains haft. This was
completed in 2 281 ft the following year. Haulage was driven towards the winze.
An internal shaft was started on the 2 150 foot level in 1961. Lease 19 was
renewed for another 21 years. In 1962 the winze began in 1961 was deepened to 3
567 ft. Three new main haulage were opened in the deeper part of the
mine.
Reserves as of January 1, 1968 were 413 000 tons grade 5.58% Cu,
6.60% Zn, 1.10 oz. Ag/ton and 0.036 oz. Au/ton according to World Mining (Feb.
1969). In 1961 underground exploration located an additional 100 000 tons of ore
averaging 3.8% Cu and 3.3% Zn (HBMS 1969 Annual Report).
An exploratory drift
on the 1 850 ft. level was driven beneath Mandy zone. Deeper ore zones at the
southern end of the Schist deposit were developed to 3 500 ft. By 1972
the search for new ore had only found a small ore zone “of little importance” in
the Schist-Mandy area (HBMS 1972 Annual Report). Salvage mining in 1974
produced less ore than anticipated. Reserves as of January 1, 1974 were
reportedly 145 800 tons grading 4.71% Cu, 5.3% Zn, 0.72 oz. Ag/ton (Cranstone et
al. 1977). The mine was permanently closed in March 1976 when reserves
were exhausted (HBMS 1976 Annual Report).
HISTORY OF
PRODUCTION
1951-53 -- Development ore hoisted.
.....1954 -- First year of
production.
.....1956 -- Peak production.
.....1975 -- Last year of full
production.
.....1976 -- Clean-up. Mine closed in March.
Year
.............Tons................ % Cu................. % Zn
..................oz. Au/ton oz..................oz. Ag/ton
1954
.............56,618.............. 5.23.....................
7.00...................... 0.035............................... 1.08
1956
............154,968............. 3.59.....................
8.00...................... 0.049................................
1.23
1975.............. 45,303............. 4.10.....................
4.40...................... 0.030................................
0.80
TOTAL.... 2,015,996............ 4.30.....................
7.25....................... 0.041...............................
1.082
Year .............Tonnes ............% Cu.................. % Zn
...................g. Au/ton .......................g.
Ag/ton
1954............. 48,632............. 5.23..................... 7.00
.......................1.20.................................
37.04
1956............ 140,556............. 3.59.....................
8.00....................... 1.68.................................
42.18
1975.............. 41, 090............ 4.10.....................
4.40...................... 1.03.................................
27.43
TOTAL.... 1,828,502............ 4.30.....................
7.25....................... 1.402............................... 37.114
REFERENCES
Bailes, A.H., 1971: Preliminary compilation of the geology of the Snow
Lake - Flin Flon - Sherridon area; Manitoba Department of Mines and Natural
Resources, Mines Branch, Geological Paper 1/71.
Bruce, E.L., 1918:
Amisk-Athapapuskow Lake District; Geological Survey of Canada, Memoir
105.
Coates, C.J.A., Quirke, T.T., Bell, C.K., Cranstone, D.A., Campbell,
F.H.A., 1972: Geology and Mineral Deposits of the Flin Flon, Lynn Lake and
Thompson Areas, Manitoba and the Churchill-Cranstone, D.A. and Hamilton, S.A.
1976: Canadian Reserves of Copper, Nickel, Lead, Zinc, Molybdenum, silver, Gold;
Energy, Mines & Resources, MR 166, p. 13.
Davies, F.J., Bannatyne, B.B.,
Barry, G.S., McCabe, H.R. 1965: Geology and Mineral Resources of Manitoba;
Manitoba Mines Branch, p. 73-74.
Douglas, R.W.J., 1970: Geology and Economic
Minerals of Canada; Geological Survey of Canada, Economic Geology Report p.
190.
Gale, G.H., Koo, J., Solkoski, L. and Southard, G., 1976: Evaluation of
Massive Sulphide Environments; in NREP First Annual Report. Manitoba Mineral
Resources Division, Open File Report, 77/1, p. 34-46.
+Howkins, J.B. and
Martin, P.L., 1970: a Comparison Between the Flin Flon and Snow Lake Orebodies
of Hudson Bay Mining and Smelting Co., Limited; C.I.M.M. Annual Meeting,
Unpublished Report.
+Hudson Bay Mining and Smelting Co., Limited, Staff and
Stockwell, C.H., 1957: Schist Lake Mine in: Structural Geology of
Canadian ore Deposits, Volume II: C.I.M.M., p. 258-261.
Hudson Bay Mining and
Smelting Co., Limited, NW 12, 63K; Corporation Files, Manitoba Mineral Resources
Division.
McIntosh, J.A. and Cranstone, D.A., 1977: Canadian Reserves of
Copper, Nickel, Lead, zinc, Molybdenum, Silver, Gold; Energy, Mines and
Resources, Canada, MR 174, p. 13.
Sabina, A.P., 1972: Rocks and Minerals for
the Collector, LaRonge-Creighton, Saskatchewan; Flin Flon-Thompson, Manitoba;
Geological Survey of Canada, Paper 71-27, p. 39040.
Sangster, D.C. 1972:
Isotopic Studies of Ore Leads in the Hanson lake-Flin Flon –Snow Lake Mineral
Belt; Canadian Journal of Earth Sciences, Volume 9, p. 500-513.
Sangster,
D.C. 1972: Precambrian Volcanogenic Massive Deposits in Canada: A Review;
Geological Survey of Canada, Paper 72-22, p. 7.
MAP REFERENCES
*Map 63K/12W, Schist Lake, (Topographic), Scale: 1:50 000,
Surveys & Mapping Branch, Ottawa.
Map 2453G, Athapapuskow Lake,
(Aeromagnetic), Scale 1:63 360, Manitoba Mines Branch and Geological Survey of
Canada.
Map 71/1, Geological Compilation of the snow Lake-Flin Flon-Sherridon
Area (Geological), Scale 1:253 440W; Accompanied Paper by Bailes (1971);
Manitoba Mines Branch.
Map 1078A Flin Flon-Mandy (Geological), Scale 1:200;
Accompanied Marginal Notes by Stockwell (1960); Geological Survey of
Canada.
Map 663A, Schist Lake (Geological) Scale 1:63 360; Accompanied
Marginal Notes by Tanton (1941); Geological Survey of Canada.
Maps NW 12, 63K
(Claim), 1:31 6380 “Circa 2978” Claim Maps Series, Mining Recording, Manitoba
Mineral Resources Division.
URL
N/A
REMARKS
Copper symbols are shown on map 1078A between and along strike of the
Schist and Mandy Mines.
Map 633A indicated gold and pyrite showings on
a peninsula on the west side of Schist Lake, 8 km south-southwest of the
Schist Lake Mine. Nothing more is known about this
occurrence.
NOTES
N/A
Compiled/Revised
by:
RM
SMH
Date
6-75
1-78
