Mine detail: Lost River-Cassiterite dike exogreisen

Previously called ''

<< Back to the map

Location

Lat / long:

65.47527, -167.1564

Resource(M)

Primary:	Tungsten, Tin
Ore:	Cassiterite, Chalcopyrite, Galena, Sphalerite, Stannite, Wolframite
Gangue:	Arsenopyrite, Fluorite, Kaolinite, Topaz, Tourmaline, Pyrite, Mica, Quartz

Production

Operation type:	Unknown
Development status:	Producer

Geology

Associated rock:	Lost River
Alteration processes:	Greisen has extensively replaced the felsic Cassiterite dike over 2,200 feet of strike and several hundred feet of dip. Later kaolinite replacement has overprinted much of the greisen.

References

DEP	10308412
Reference	{Deposit:: Lorain, S.H., Wells, R.R., Mihelich, Miro, Mulligan, J.J., Thorne, R.L., and Herdlick, J.A., 1958, Lode-tin mining at Lost River, Seward Peninsula, Alaska: U.S. Bureau of Mines Information Circular 7871, 76 p.}{Deposit:: Sainsbury, C.L., 1964, Geology of the Lost River mine area, Alaska: U.S. Geological Survey Bulletin 1129, 80 p.}{Deposit:: Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.}{Deposit:: Hudson, T.L., and Arth, J. G., 1983, Tin-granites of Seward Peninsula, Alaska: Geological Society of America Bulletin, v. 94, p. 768-790.}{Deposit:: Hudson, T.L., and Reed, B.L., 1997, Tin deposits of Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 450-465.}
Reporter	Travis L. Hudson