|Quadrangle map, 1:250,000-scale||SO|
|Quadrangle map, 1:63,360-scale||C-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||California Creek is a west tributary to Topkok Creek. Topkok Creek flows south to its mouth on Norton Sound at Topkok settlement, 5.7 miles west of Bluff. The confluence of California and Topkok Creek is about 3.5 miles upstream from the mouth of Topkok Creek. Pre-1985, 1:250,000 scale topographic maps of the area mislabeled California and nearby creeks. As a result, Cobb (1972, MF 445) mislocated the California Creek site on Allen Creek. This is locality 106 of Cobb (1972, MF 445; 1978, OF 78-181).|
Geologic descriptionAll that has been reported is that placer mining occurred on this creek during the years 1928-30, 1933, and 1939-40 (Cobb, 1978, OF 78-181. A dredge apparently worked on the creek in 1939 and 1940. Bedrock of the area is primarily a polydeformed, metapelitic schist of possible Precambrian age (Sainsbury and others, 1972); Till and others (1986) identify the Silverbow Creek drainage as an area of extensive Quaternary cover.
|Geologic map unit||(-163.909590847084, 64.6082607944986)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary; the placer deposits here are at low enough elevation (about 125 feet) to have been influenced by Quaternary sea level fluctuations.|
|Workings or exploration||Some open cut placer workings are probably present on this creek.|
|Indication of production||Yes; small|
Additional commentsSome placer mining between 1928 and 1940.
Cobb, E.H., 1972, Metallic mineral resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, 1 sheet, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.
Sainsbury, C.L., Hudson, T.L., Ewing, R., and Marsh, W.R., 1972, Reconnaissance geologic maps of the Solomon D-5 and C-5 quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 72-324, 12 p., 2 sheets, scale 1:63,360.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||8/19/1999|