|Quadrangle map, 1:250,000-scale||MH|
|Quadrangle map, 1:63,360-scale||B-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of 5,000 feet 1.4 miles south of the top of Rainbow Mountain. It is in the northeast corner of section 10, T. 19 S., R. 11 E., Fairbanks Meridian. The occurrence is described by Hanson (1963, plate 5, locality 6) and corresponds to locality 21 in Cobb (1979 [OFR 79-238]) and locality S111 in table 2 of Nokelberg and others (1991).|
Geologic descriptionAt this location a swarm of ten subparallel quartz veins (Hanson, 1963) that range from 0.2 to 1.0 inch thick strikes N30W and dips 55E. The veins contain scattered chalcopyrite and galena and traces of gold and silver. They cut dacite lapilli tuff of the Slana Spur Formation of Pennsylvanian age (Nokleberg and others, 1991). Samples of veins assay as much as 0.8 percent copper, 0.3 percent lead, and a trace of gold and silver (Hanson, 1963).
|Geologic map unit||(-145.632847641795, 63.2886876227785)|
|Mineral deposit model||Polymetallic veins (Cox and Singer, 1986; model 22c).|
|Mineral deposit model number||22c|
|Age of mineralization||Pennsylvanian or younger.|
|Workings or exploration||Samples of veins assay as much as 0.8 percent copper, 0.3 percent lead, and a trace of gold and silver (Hanson, 1963).|
|Indication of production||None|
Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Mount Hayes quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-238, 140 p.
Hanson, L.G., 1963, Bedrock geology of the Rainbow Mountain area, Alaska Range, Alaska: Alaska Division of Mines and Minerals Geologic Report 2, 82 p., 2 plates.
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.
Nokleberg, W.J., Lange, I.M., Roback, R.C., Yeend, Warren, and Silva, S.R., 1991, Map showing locations of metalliferous lode and placer mineral occurrences, mineral deposits, prospects, and mines, Mount Hayes quadrangle, eastern Alaska Range, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1996-C, 42 p., 1 sheet, scale 1:250,000.
|Reporters||W.T. Ellis (Alaska Earth Science), C.C. Hawley (Hawley Resource Group), and W.J. Nokleberg (USGS)|
|Last report date||8/9/2002|