Mine detail: Lynn Lake Nickel District

Previously called ''

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Location

Lat / long:

56.78337, -101.33394

Resource(M)

Primary:	Copper, Nickel
Secondary:	Gold, Zinc, Cobalt
Discovery year:	1941

Production

Operation type:	Unknown
Deposit type:	MASSIVE SULFIDES, DISSEMINATED SULFIDES STOCKWORKS OF SULFIDE STRINGERS
Production size:	Yes
Development status:	Producer
First production started:	1954

Geology

Structure:

ORE 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.

References

MRDS	W002757
DEP	60001626
Reference	{Deposit:: CORNWALL, H.R., 1966, NICKEL DEPOSITS OF NORTH AMERICA: USGS BULL. NO. 1223, PG. 17-20, MAP P. 10-11}{Deposit:: RUTTAN, 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.}{Deposit:: SKINNER, WALTER R., 1973, MINING INTERNATIONAL YEARBOOK: THE FINANCIAL TIMES, LONDON, 1973, P. 521}{Deposit:: MANIFILE, THE UNIVERSITY OF MANITOBA FILE OF NONFERROUS METAL DEPOSITS OF THE WORLD, 1973, UNIVERSITY OF MANITOBA, WINNIPEG, MANITOBA, INDEX NO. A13150001.}{Deposit:: BOLDT, JOSEPH R., JR., 1967, THE WINNING OF NICKEL: PRINCETON, NEW JERSEY, D. VAN NOSTRAND CO., INC., P. 46-49.}{Deposit:: 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.}{Deposit:: CANADIAN MINES HANDBOOK 1974-1975,1974: THE NORTHERN MINER, P.298.}{Deposit:: ENG. MINING JOUR.,1975,1975 INTERNAC. DIRECTORY OF MINING:NEW YORK,MCGRAW-HILL,P.185.}{Deposit:: METALS WEEK-METALS SOURCEBOOK,4/28/75.}