Mine detail: Orange Hill

Previously called 'Alaska Nabesna Corporation'

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Location

Lat / long: 62.20525, -142.84448

Resource(M)

Primary: Copper
Secondary: Molybdenum, Gold, Silver
Ore: Chalcopyrite, Molybdenite, Pyrite
Gangue: Calcite, Gypsum, Quartz
Discovery year: 1897

Production

Operation type: Unknown
Production size: None
Development status: Occurrence

Geology

Host rock:Nabesna Batholith;Nabesna Batholith;
Host type:Diorite
Associated type:Dacite
Alteration processes:Central Altered Zone 400 M By 2000 M Contain Abundant Biotite, Quartz Veinlets, Minor K-Feldspar, Chlorite, And Sericite Cut By Late Stage Anhydrite Veins. Outer Altered Zones Contain Chlorite, Minor Sericite And Anhydrite.

References

MRDSA011395
DEP10000755
Reference{Deposit:: WAYLAND, R.C., 1943, GOLD DEPOSITS NEAR NABESNA: U.S. GEOLOGICAL SURVEY BULLETIN 933-B, P. 103-199.}{Deposit:: VAN ALSTINE, R.E., AND BLACK, R.F., 1944, MINERAL DEPOSITS AT ORANGE, HILL, ALASKA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 76, 1 SHEET, 16 P.}{Deposit:: MOFFIT, F.H., 1954, GEOLOGY OF THE EASTERN PART OF THE ALASKA RANGE AND ADJACENT AREA: U.S. GEOLOGICAL SURVEY BULLETIN 989-D, P. 65-218.}{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.}{Deposit:: RICHTER, D.H., 1973, RECONNAISSANCE GEOLOGICAL MAP OF THE NABESNA A-1 QUADRANGLE, ALASKA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATIONS SERIES MAP I-789, SCALE 1:63,360.}{Deposit:: RICHTER, D.H., AND OTHERS, 1975, MINERAL RESOURCES MAP OF THE NABESNA QUADRANGLE, ALASKA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-655-K, SCALE 1:250,000.}{Deposit:: HOLLISTER, V.F., ANZALONE, S.A., AND RICHTER, D.H., 1975, PORPHYRY COPPER BELTS OF SOUTHERN ALASKA AND CONTIGUOUS YUKON TERRITORY: CIM BULLETIN (CANADIAN MINING AND METALLURGICAL BULLETIN), V. 68, NO. 756, P. 104-112.}{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.}{Deposit:: USGS OFR 398, LOC. 2.}{Deposit:: USGS PP 1050, P. 33.}{Deposit:: BUNCTZEN, T.K., ET.AL., 1982, REVIEW OF ALASK* MINERAL RESOURCES: STATE OF ALASKA OFFICE OF MINERAL DEVELOPMENT.}{Other Database:: BAG-MF-655K-22}
ReporterMason, George, Leonard, Kenneth R. (Elliott, R. L.)