|Quadrangle map, 1:250,000-scale||GU|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Granite Creek probably carries minor amounts of gold widely and it was prospected for several seasons prior to about 1940. The main activity was near the intersection of Granite Creek and the West Fork of Granite Creek in the W1/2, section 6, T. 13 N., R. 7 E., Copper River Meridian. The location is approximately the same given as locality 19 by Richter and Matson (1972) and locality 18 of MacKevett and Holloway (1977). The location is approximate.|
Geologic descriptionGranite Creek mainly flows on the dioritic phase of the Pennsylvanian to Permian, Ahtell pluton and sedimentary and volcanic rocks of the Pennsylvanian to Permian, Slana Spur Formation (Richter, Lanphere, and Matson, 1975). Granite Creek was sufficiently auriferous to be prospected for several seasons before World War II (Moffit, 1938, p. 51). Production, if any, was small. The placer is probably of river-bar type.
|Geologic map unit||(-144.162215736488, 62.93961108913)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Holocene placer.|
|Workings or exploration||Granite Creek was sufficiently auriferous to be prospected for several seasons prior to World War II (Moffit, 1938, p. 51). Production, if any, was small.|
|Indication of production||None|
|Production notes||Probably minor if any.|
Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Gulkana quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1247, 36 p.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
Moffit, F.H., 1938, Geology of the Slana-Tok district, Alaska: U.S. Geological Survey Bulletin 904, 54 p.
Richter, D.H., and Matson, N.A., Jr., 1972, Metallic mineral resources map of the Gulkana quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-419, 1 sheet, scale 1:250,000.
Richter, D.H., Lanphere, M.A., and Matson, N.A., Jr., 1975, Granite plutonism and metamorphism, eeastern Alaska Range, Alaska: Geological Society of American Bulletin, v. 86, p. 819-820.
|Reporters||W.T. Ellis (Alaska Earth Sciences), C.C. Hawley (Hawley Resource Group), and W.J. Nokleberg (U.S. Geological Survey)|
|Last report date||12/4/2000|