|Quadrangle map, 1:250,000-scale||MH|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on the ridge at the headwaters of Willow Creek, a southwest-flowing tributary of the Chisna River. The occurrence is at an elevation of about 5,500 feet near peak 5770. The occurrence is near the center of the W1/2SW1/4 section 8, T. 21 S., R. 16 E., Fairbanks Meridian. It corresponds to locality 142 in table 2 of Nokleberg and others (1991); the location is probably accurate within 0.2 mile.|
Geologic descriptionThe rocks in the vicinity consist of meta-andesite porphyry of the Tetelna Volcanics of Pennsylvanian age (Nokleberg and others, 1991). The meta-andesite is locally stained with malachite; a grab sample assayed 0.64 percent copper, 15 parts per million (ppm) silver, and 0.20 ppm gold (Nokleberg and others, 1991).
|Geologic map unit||(-144.737926509944, 63.105403088661)|
|Mineral deposit model||Polymetallic vein(s)? (Cox and Singer, 1986 model 22c?).|
|Mineral deposit model number||22c?|
|Age of mineralization||Pennsylvanian or younger, on the basis of the age of host rocks.|
|Workings or exploration||Only limited surface sampling.|
|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 Sciences), C.C. Hawley (Hawley Resource Group), and W.J. Nokleberg (USGS)|
|Last report date||7/12/2003|