Commodities
PrimaryCopper, Nickel
SecondaryGold, Zinc, Cobalt
Commodity typeM
Deposit
Deposit typeMASSIVE SULFIDES, DISSEMINATED SULFIDES STOCKWORKS OF SULFIDE STRINGERS
Deposit sizeY
Ore controlTHE NICKEL-COPPER DEPOSITS AT LYNN LAKE MAY BE GENETICALLY RELATED TO COMPARITIVELY SMALL COPPER-ZINC, GOLD DEPOSITS ASSOCIATED WITH PYRRHOTITE AND PYRITE PRESENT IN THE AREA. RUTTAN (1957, P. 282-283), CHIEF GEOLOGIST FOR SHERRITT GORDON MINES, DESCRIBES ORE AS BEING HYDROTHERMAL SOLUTIONS THAT CAME FROM EITHER GRANITIC INTRUSIVES OR MAFIC INTRUSIVES.
Geology
StructureORE IS FOUND IN A DIFFERENTIATED SILL APPROX. 1500 METERS THICK, COMPOSED OF DUNITE,PYROXENITE,ANORTHOSITE,NORITE,AND GABRO. SILL WAS INTRUDED AFTER SOME FOLDING, BUT CRYSTALLIZATION WAS COMPLETE BEFORE MAJOR FOLDING STARTED., ORE IS DESCRIBED AS OCCUPYING A FAULT BRECCIA ZONE RFLATED TO LARGE SCALE THRUST FAULTS OR AS IRREGULAR TABULAR BODIES ORIENTED PARALLEL TO THE IGNEOUS LAYERING OF THE SILL. THE ORE BODIES OCCUR IN PYROXENITE AND NORITE.
Economic & production
Development statusProducer
First production1954
Discovery year1941
Identification
Deposit ID60001626
MRDS IDW002757
RegionNA
Data scoreD
Coordinates56.78337, -101.33394
References
CORNWALL, H.R., 1966, NICKEL DEPOSITS OF NORTH AMERICA: USGS BULL. NO. 1223, PG. 17-20, MAP P. 10-11RUTTAN, G.D., 1957, LYNN LAKE MINE (MANITOBA), IN 2 OF STRUCTURAL GEOLOGY OF CANADIAN ORE DEPOSITS: MONTREAL, CANADIAN INST. MINING AND METALLURGY, GEOL. DIV., P. 275-291.SKINNER, WALTER R., 1973, MINING INTERNATIONAL YEARBOOK: THE FINANCIAL TIMES, LONDON, 1973, P. 521MANIFILE, THE UNIVERSITY OF MANITOBA FILE OF NONFERROUS METAL DEPOSITS OF THE WORLD, 1973, UNIVERSITY OF MANITOBA, WINNIPEG, MANITOBA, INDEX NO. A13150001.BOLDT, JOSEPH R., JR., 1967, THE WINNING OF NICKEL: PRINCETON, NEW JERSEY, D. VAN NOSTRAND CO., INC., P. 46-49.NALDRETT, A.J.,AND GASPARRINI,E.L., 1971, ARCHAEAN NICKEL SULPHIDE DEPOSITS IN CANADA: THEIR CLASSIFICATION,GEOLOGIC SETTING AND GENESIS WITH SOME SUGGESTIONS AS TO EXPLORATION;GEOLOGICAL SOCIETY OF AUSTRALIA,SPECIAL PUBLICATIONS,PP.201-226.CANADIAN MINES HANDBOOK 1974-1975,1974: THE NORTHERN MINER, P.298.ENG. MINING JOUR.,1975,1975 INTERNAC. DIRECTORY OF MINING:NEW YORK,MCGRAW-HILL,P.185.METALS WEEK-METALS SOURCEBOOK,4/28/75.