|Quadrangle map, 1:250,000-scale||TA|
|Quadrangle map, 1:63,360-scale||B-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Martin and Katz (1912) reported that flour gold was present on gravel bars of the Mulchatna River above the mouth of the Koktalee (Koktuli) River. The map site of this occurrence is a gravel bar about 1.5 mile above the mouth of Keefer Creek. It is arbitrarily chosen to represent the general area of occurrences noted by Martin and Katz (1912). Cobb (1972 [MF 384]; 1976 [OF 76-606]) included these occurrences under the name 'Mulchatna River'.|
Geologic descriptionMartin and Katz (1912) reported that fine flour gold was present on gravel bars of the Mulchatna River above the mouth of the Koktalee (Koktuli) River. The Mulchatna River approximately coincides with a major structural boundary between mid-Cretaceous Kuskokwim Group clastic rocks to the west and Mesozoic sedimentary and igneous rocks to the east (Decker and others, 1994).
|Geologic map unit||(-156.102231631018, 60.299301745634)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Holocene.|
|Indication of production||None|
Cobb, E.H., 1972, Metallic mineral resources map of the Taylor Mountains quadrangle: U.S. Geological Survey Miscellaneous Field Studies Map MF-384, 1 sheet, scale 1:250,000.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountains quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p.
Decker, J., Bergman, S.C., Blodgett, R.B., Box, S.E., Bundtzen, T.K., Clough, J.G., Coonrad, W.L., Gilbert, W.G., Miller, M.L., Murphy, J.M., Robinson, M.S., and Wallace, W.K., 1994, Geology of southwestern Alaska, in Plafker, G. and Berg, H.C., eds., The Geology of Alaska: Geological Society of America DNAG, The Geology of North America, v. G-1, p. 285-310.
|Reporters||Travis L. Hudson|
|Last report date||12/30/2000|