Commodities
PrimaryTin, Silver, Niobium (Columbium)
SecondaryLead, Zinc, Scandium, Tellurium, Antimony, Iron, Copper, Arsenic, Bismuth
Deposit
Model77: Sn-polymetallic vein
Materials
Ore mineralsArsenopyrite, Bismuthinite, Cassiterite, Chalcopyrite, Sphalerite
GangueAnatase, Quartz, Tourmaline
Geology
AlterationTourmaline-quartz-sericite in felsic intrusive rocks; quartz-tourmaline-sphene in hornfels.
Economic & production
Development statusProspect
Identification
Deposit ID10307803
RegionNA
Data scoreB
Coordinates63.20046, -155.88397
References
Patton, W.W., Jr., Moll, E.J., Dutro, J.T., Jr., Silberman, M.L., and Chapman, R.M., 1980, Preliminary geologic map of Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811-A, 1 sheet, scale l:250,000.Moll, E.J., Silberman, M.L., and Patton, W.W. Jr., 1981, Chemistry, mineralogy, and K-Ar ages of igneous and metamorphic rocks of the Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811C, 15 p., 2 sheets, scale 1:250,000.Burleigh, R.E., 1992, Examination of the Win tin prospect, west-central Alaska: U.S. Bureau of Mines Open-File Report 92-92, 23 pages.Bundtzen, T.K., and Miller, M.L., 1997, Precious metals associated with Late Cretaceous-early Tertiary igneous rocks of southwestern Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Economic Geology Monograph #9, Mineral Deposits of Alaska, p. 242-286.