Commodities
PrimaryGold
Commodity typeM
Deposit
Deposit sizeU
Ore controlSims And Day (1992) Note That The Fundamental Regional Control On Gold Deposits In The Superior Province Is Transcurrent And Oblique Slip-Shear Deformation Zones That Formed In Late Archean Time.
Materials
Ore mineralsGold
GangueAnkerite, Chlorite, Muscovite, Pyrite, Quartz, Sericite, Specularite, Tourmaline
Geology
Host rockSchist · Seine Series
StructureIn The Quetico Subprovince Of The Superior Province. The Rainy Lake Area Lies Within A Dextral Wrench (Shear) Zone Bounded On The North By The Quetico Fault And On The South By The Rainy Lake-Seine River Fault.
Tectonic settingSuperior Province, Relatively Undisturbed Archean Craton, The Southern Half Of Which Consists Of Dominantly Alternating Belts Of Volcanic-Plutonic (Greenstone-Granite) Terranes And Metasedimentary Rock Terranes.
Economic & production
Development statusUnknown
Identification
Deposit ID10082803
MRDS IDW062152
RegionNA
Data scoreB
Coordinates48.60611, -93.11773
References
GROUT, F.F., 1937, PETROGRAPHIC STUDY OF GOLD PROSPECTS OF MINNESOTA: ECONOMIC GEOLOGY, V. 32, NO. 1., P. 56-68.SIMS, P.K., AND DAY, W.C., 1992, A REGIONAL STRUCTURAL MODEL FOR GOLD MINERALIZATION IN THE SOUTHERN PART OF THE ARCHEAN SUPERIOR PROVINCE, UNITED STATES, IN SIMS, P.K., AND CARTER, L.M.H., EDS., CONTRIBUTIONS TO PRECAMBRIAN GEOLOGY OF THE LAKE SUPERIOR REGION: U.S. GEOLOGICAL SURVEY BULLETIN 1094-M, 19 P.DAY, W.C., 1990, BEDROCK GEOLOGIC MAP OF THE RAINY LAKE AREA, NORTHERN MINNESOTA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATIONS SERIES MAP I-1927, SCALE 1:50,000.DAY, W.C., AND SIMS, P.K., 1984, TECTONIC EVOLUTION OF THE RAINY LAKE AREA, NORTHERN MINNESOTA: GEOLOGICAL ASSOCIATION OF CANADA, THE MINERAL ASSOCIATION OF CANADA, LONDON, ONTARIO, CANADA, PROGRAM WITH ABSTRACTS, V. 9, P. 57.