|Quadrangle map, 1:250,000-scale||MH|
|Quadrangle map, 1:63,360-scale||A-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of 4,500 feet approximately one-half mile southeast of the top of Paxson Mountain. It is in an east-flowing creek in the NE1/4SE1/4 section 14, T. 22 S., R. 11 E., Fairbanks Meridian. This site corresponds to locality S97 in table 2 of Nokleberg and others (1991).|
Geologic descriptionAt this locality bornite occurs in 1-centimeter-wide quartz veins that cut Nikolai Greenstone metabasalt of Late Triassic age (Nokleberg and others, 1991). Copper minerals also occur in amygdules in metabasalt. A composite chip sample across a 6.5-foot zone of malachite and azurite in amygdules contained 2.6 percent copper and 20 parts per million silver (Nokleberg and others, 1991).
|Geologic map unit||(-145.573419409753, 63.0059781135382)|
|Mineral deposit model||Basaltic Cu (Cox and Singer, 1986; model 23).|
|Mineral deposit model number||23|
|Age of mineralization||Late Triassic and Cretaceous.|
|Alteration of deposit||The vesicular basalt host rock is altered in part to chlorite and epidote; copper mineral(s) are oxidized.|
|Workings or exploration||A composite chip sample across a 6.5-foot zone of malachite and azurite in amygdules contained 2.6 percent copper and 20 parts per million silver (Nokleberg and others, 1991).|
|Indication of production||None|
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||6/19/2002|