Commodities
PrimaryTin
Commodity typeM
Deposit
Model47: Sn veins49: Sn greisen
Geology
AlterationSpecific data for bedrock in this drainage are not available but quartz monzonite (granite) and alaskite from this pluton are reported to be intensely altered to sericite, chlorite, and some epidote (Csejtey, Patton, and Miller 1971, p. D73). Float of tourmaline-rich granite samples from unidentified streambeds of eastern St. Lawrence Island have high (but unspecified) tin values (Patton and Csejtey, 1971, p. 7).
Economic & production
Development statusOccurrence
Identification
Deposit ID10003572
MRDS IDA106330
RegionNA
Data scoreB
Coordinates63.28918, -168.95316
References
Csejtey, Bela, Jr., Patton, W.W., Jr., and Miller, T.P., 1971, Cretaceous plutonic rocks of St. Lawrence Island, Alaska, a preliminary report: U.S. Geological Survey Professional Paper 750-D, p. D68-D76.Patton, W.W., Jr., and Csejtey, Bela, Jr., 1971, Preliminary geologic investigations of eastern St. Lawrence Island, Alaska: U.S. Geological Survey, Open-File Report 71-224, 52 p.Patton, W.W., Jr., and Csejtey, Bela, Jr., 1972, Analyses of stream sediment and rock samples from St. Lawrence Island, Alaska, 1966-1971: U.S. Geological Survey Open-File Report 72-293, 78 p.Cobb, E.H., 1980, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in fifteen quadrangles in southwestern and west-central Alaska: U.S. Geological Survey Open-File Report 80-909, 103 p.Patton, W.W., Jr., and Csejtey, Bela, Jr., 1980, Geologic map of St. Lawrence Island, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-1203, scale 1:250,000.Cobb, E.H., 1972, Metallic mineral resources map of the Saint Lawrence quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-465, 1 sheet, scale 1:250,000.