|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 3,500 feet at the north end of Rainbow Ridge about 1.25 miles northeast of 'Miller Mine' on the Richardson Highway. It is at the northeast corner of section 19, T. 18 S., R. 11 E., Fairbanks Meridian. The occurrence corresponds to locality 1 in Hanson (1963), locality 15 in Cobb (1979 [OFR 79-238]), and locality S100 of table 2 in Nokleberg and others (1991).|
Geologic descriptionThis occurrence consists of disseminated to massive chalcopyrite and galena in a small swarm of quartz veins as much as 3 inches wide (Hanson, 1963). The veins cut sedimentary and volcanic rocks of the Slana Spur Formation of Pennsylvanian age, which is locally intruded by granodiorite and dacite (Nokleberg and others, 1991). Samples of veins assay 1.6 to 1.7 percent copper, 2.0 to 2.1 percent lead, a trace of gold, and 2.4 ounces of silver per ton (Hanson, 1963).
|Geologic map unit||(-145.69905540885, 63.3468880784242)|
|Mineral deposit model||Polymetallic veins (Cox and Singer, 1986; model 22c).|
|Mineral deposit model number||22c|
|Age of mineralization||Permian(?) or younger.|
|Workings or exploration||
Samples of veins assay 1.6 to 1.7 percent copper, 2.0 to 2.1 percent lead, a trace of gold, and 2.4 ounces of silver per ton (Hanson, 1963).The occurrence is on active claims of Northeast Exploration.
|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.
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||6/21/2002|