The Lemon claims is a iron, copper, and zinc mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
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Lemon claims MRDS details
Site Name
Primary: Lemon claims
Secondary: Copper King
Secondary: Lemon
Commodity
Primary: Iron
Primary: Copper
Primary: Zinc
Location
State: Alaska
District: Chisana
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Skarn Cu
Orebody
Not available
Structure
Not available
Alterations
Alteration Text: Secondary minerals: molybdenite, chrysocolla, malachite, azurite, covellite.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Bornite
Ore: Sphalerite
Ore: Pyrrhotite
Ore: Pyrite
Ore: Magnetite
Ore: Chalcopyrite
Gangue: Tetrahedrite
Gangue: Powellite
Gangue: Molybdenite
Gangue: Magnetite
Gangue: Gypsum
Gangue: Garnet
Gangue: Epidote
Gangue: Diopside
Gangue: Wollastonite
Comments
Comment (Workings): Workings / Exploration = Explored by short adits and diamond drilling. 188-foot core sample (Lemon Extension #2, Pilgrim, E.R., 1931) contained 0.3 TO 3.8 % Cu, average 0.95% Cu. Weighted averages from channel samples, Lemon Claim #2 (USGS OFR 76, p. 16) contained 0.71% Cu, 0.024 oz./t Au, 0.66 oz./t Ag. 8-foot channel sample from massive sulfide body 30 ft. long and 3 to 8 ft. thick (USGS OFR 76, p. 10, 11, table 2 no. 27) contained 0.32% Cu, 0.08 oz./t Au, 6.12% Zn, 38.84% Fe. Surface and underground workings.
Comment (Geology): Age = Early Cretaceous
Comment (Deposit): Other Comments = Considered as part of Orange Hill porphyry copper deposit. This listing contains data specific to contact metasomatic deposits associated with the quartz diorite at Orange Hill. See Orange Hill deposits (NB043).
Comment (Geology): Geologic Description = Disseminated pyrrhotite, pyrite, and chalcopyrite in magnetite-rich skarn and veins of pyrite, chalcopyrite, and sphalerite in magnetite bodies and cutting skarn; some stringers of bornite and magnetite. Skarn developed in Permian limestone adjacent to Cretaceous quartz diorite intrusive and to porphyry Cu-Mo deposit at Orange Hill. Skarn grades outward into hornfels.
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Contact metasomatic, skarn
References
Reference (Deposit): Richter, D.H., and Matson, N.A., 1970, Geochemical data from the Nabesna A-4 quadrangle, Alaska: U.S. Geological Survey Open-File Report 70-276, 14 p., 1 sheet, scale 1:63,360.
Reference (Deposit): Pilgrim, E.R., 1931, Alaska Nabesna Orange Hill copper claims, in Stewart, B.D., Report on cooperation between the Territory of Alaska and the United States in making mining investigations and in inspection of mines for the biennium ending March 31, 1931, p. 69-74.
Reference (Deposit): Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.
Reference (Deposit): Van Alstine, R.E., and Black, R.F., 1944, Mineral deposits at Orange, Hill, Alaska: U.S. Geological Survey Open-File Report 76, 16 p., 1 sheet.
Reference (Deposit): Richter, D.H., 1973, Reconnaissance geological map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-789, scale 1:63,360.
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