Mine detail: Eisenbrey Deposit

Previously called 'Thornapple Deposit'

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Location

Lat / long: 45.51667, -91.13347

Resource(M)

Primary: Zinc, Copper
Tertiary: Gold, Silver
Discovery year: 1973

Production

Operation type: Unknown
Production size: Small
Development status: Unknown

Geology

Host type:Schist
Structure:A Nearly Vertically Dipping And Plunging Complexly Folded Deposit.
Tectonic:Magmatic Arc
Alteration processes:Lower Amphibolite Facies--Dominantly Kyanite-Sillimanite-Staurolite-Hornblende-Almandine Assemblages (Amphibolite Facies).

References

MRDSW060005
DEP10082579
Reference{Deposit:: CRAWFORD, M.J., 1996, WISCONSIN EXPLORATION UPDATE: SKILLINGS MINING REVIEW, V. 85, NO. 21, P.4-5.}{Deposit:: 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.}{Deposit:: 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).}{Reserve-Resource:: MAY, 1996 P. 107-108.}
ReporterNicholson, S.W., Sutphin, David M., Mason Jr., G.T.