Commodities
PrimaryCopper, Nickel
SecondaryPlatinum, Palladium
Commodity typeM
Deposit
Deposit typeDISSEMINATED, MASSIVE, OR BRECCIA ORE, OR SULFIDE STRINGER ZONES
Deposit sizeL
Ore control"THOMSON (1956) AND WILLIAMS (1956) CONCURRENTLY PROPOSED, WITH SUPPORTING EVIDENCE, THAT THE SUDBURY BASIN IS A CALDERA, RELATIVELY STEEP-WALLED AT DEPTH, THAT FORMED BY SUBSIDENCE INTO A VOID LEFT IN AN UNDERLYING MAGMA CHAMBER BY THE CATASTROPHIC ERUPTION OF MORE THAN 300 CUBIC MILES OF TUFFS AND WELDED TUFFS, NOW BOTH INSIDE AND OUTSIDE THE BASIN. THEY BELIEVE THAT THE NORITE AND GRANOPHYRE WERE LATER INTRUDED SEPARATELY, BUT CLOSELY SPACED IN TIME, ALONG RING FRACTURES THAT RIM THE BASIN."..."WILSON (1956) PROPOSED THAT THE IRRUPTIVE COULD HAVE BEEN INTRUDED VIRTUALLY IN ITS PRESENT FORM AS A SINGLE BODY OF MAGMA THAT CRYSTALLIZED AND DIFFERENTIATED IN PLACE TO DEVELOP A LOWER NORITE ZONE AND UPPER GRANOPHYRE SEPARATED BY A MIXED OR TRANSITIONAL ZONE."..."SPEERS (1957), IN A RECENT STUDY OF THE BRECCIA, CONCLUDED THAT IT PREDATES THE IRRUPTIVE, IS NOT A TECTONIC, AND PROBABLY FORMED DURING THE EXPLOSIVE ERUPTIONS OF TUFFS AND WELDED TUFFS THAT RESULTED IN THE FORMATION OF A CALDERA..."..."AN IMPACT-CRATER ORIGIN HAS BEEN PROPOSED BY DIETZ (1962): THE SUDBURY STRUCTURE IN ONTARIO, CANADA, IS INTERPRETED AS A 1.7-BILLION-YEAR-OLD ASTEROID IMPACT STRUCTURE OR 'ASTROBLEME' CREATION
Geology
StructureSHATTER CONES, FOLDS, FAULTS., NE-SW TRENDING BASIN STRUCTURE.
Economic & production
Development statusProducer
Discovery year1883
Identification
Deposit ID60001625
MRDS IDW002749
RegionNA
Data scoreD
Coordinates46.49999, -81.83311
References
CORNWALL, H.R., 1966, NICKEL DEPOSITS OF NORTH AMERICA: USGS BULL. 1223, P. 26, MAP P. 10-11METALS WEEK-METALS SOURCEBOOK, 9/10/73, ITEM #A4250.METALS WEEK-METALS SOURCEBOOK, 9/24/73, ITEM # A4447.CORNWALL, H.R., 1973, NICKEL: USGS PROF. PAPER 820, P. 437-442.MANIFILE, THE UNIVERSITY OF MANITOBA FILE OF NONFERROUS METAL DEPOSITS OF THE WORLD, 1973, UNIVERSITY OF MANITOBA, WINNIPEG, MANITOBA, INDEX NO. A15000300.BOLDT, JOSEPH R., JR., 1967, THE WINNING OF NICKEL: PRINCETON, N.J., D. VAN NOSTRAND CO., INC., P. 43