|Quadrangle map, 1:250,000-scale||EA|
|Quadrangle map, 1:63,360-scale||D-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Rock Creek is a small south tributary of the Seventymile River on which some placer mining occurred hear the head of the creek. The coordinates are the location of placer workings, in section 31, T. 1 N., R. 31 E., of the Fairbanks Meridian. The location is accurate within 1 mile. Rock Creek is locality 31 of Cobb (1972 [MF-393]) and locality 51 of Eberlein and others (1977).|
Geologic descriptionThe rocks along Rock Creek are Cretaceous to Pliocene terrigenous sedimentary rocks (Foster, 1976). The Tintina Fault crosses upper Rock Creek. Some coarse gold was found near the head of Rock Creek (Ellsworth and Parker, 1911) near the a lode gold prospect . The gold was concentrated on top of bedrock beneath about 50 feet of muck, but it could not be worked at a profit.
|Geologic map unit||(-141.523027136001, 64.8728048706032)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Some coarse gold was found near the head of Rock Creek, but it could not be worked profitably (Ellsworth and Parker, 1911).|
|Indication of production||Yes; small|
Cobb, E.H., 1972, Metallic mineral resources map of the Eagle quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-393, 1:250,000 scale, 1 sheet.
Cobb, E.H., 1977, Summary of references to mineral occurrences in the Eagle quadrangle, Alaska: U.S. Geological Survey Open-File Report 77-845, 122 p.
Eberlein, G.D., Chapman, R.M., Foster, H.L., and Gassaway, J.S., 1977, Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska: U.S. Geological Survey Open-File Report 77-168-D, 132 p., 1 sheet, scale 1:1,000,000.
|Reporters||R.L. Flynn; M.B. Werdon|
|Last report date||5/1/2002|