Description
Great Lakes Exploration Co.
Commodities
PrimaryZinc, Copper
TertiaryGold, Silver
Commodity typeM
Deposit
Model184: Massive sulfide, kuroko
Deposit sizeS
Orebody formStacked lenses
Geology
Host rockSchist
StructureA Nearly Vertically Dipping And Plunging Complexly Folded Deposit.
Tectonic settingMagmatic Arc
AlterationLower Amphibolite Facies--Dominantly Kyanite-Sillimanite-Staurolite-Hornblende-Almandine Assemblages (Amphibolite Facies).
Economic & production
Development statusUnknown
Discovery year1973
Identification
Deposit ID10082579
MRDS IDW060005
Alternate namesThornapple Deposit
RegionNA
Data scoreB
Coordinates45.4406, -91.118
References
CRAWFORD, M.J., 1996, WISCONSIN EXPLORATION UPDATE: SKILLINGS MINING REVIEW, V. 85, NO. 21, P.4-5.MAY, E.R., 1996, EISENBREY--A STRUCTURALLY COMPLEX PROTEROZOIC COPPER-ZINC MASSIVE SULFIDE DEPOSIT, RUSK COUNTY, WISCONSIN, IN LABERGE, G.L., ED., VOLCANOGENIC MASSIVE SULFIDE DEPOSITS OF NORTHERN WISCONSIN--A COMMEMORATIVE VOLUME: INSTITUTE ON LAKE SUPERIOR GEOLOGY, PROCEEDINGS, V. 42, PT. 2, 107-128.LABERGE, G.L., ED.,1996, VOLCANOGENIC MASSIVE SULFIDE DEPOSITS OF NORTHERN WISCONSIN--A COMMEMORATIVE VOLUME: INSTITUTE ON LAKE SUPERIOR GEOLOGY, PROCEEDINGS, V. 42, PT. 2 (GENERAL REFERENCE FOR WISCONSIN VMS DEPOSITS).DeMatties, T. A., 1996, A GEOLOGIC FRAMEWORK FOR EARLY PROTEROZOIC VOLCANOGENIC MASSIVE SULFIDE DEPOSITS IN WISCONSIN: AN EXPLORATION MODEL. In, Laberge, G., editor, Volcanogenic Massive Sulfide Deposits of Wisconsin: A Commemorative Volume, Insitiute on Lake Superior Geology Proceedings, v. 42, part 2, P. 31-65.MAY, 1996 P. 107-108.