Mine detail: Lost River

Previously called 'Grothe-PearsonTozer'

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Location

Lat / long:

65.45127, -167.1724

Resource(B)

Primary:	Silver, Beryllium, Copper, Fluorine-Fluorite, Lead, Tin, Zinc
Ore:	Cassiterite, Chrysoberyl, Fluorite, Galena, Sphalerite, Stannite
Gangue:	Arsenopyrite, Diaspore, Pyrite, Tourmaline

Production

Operation type:	Unknown
Development status:	Prospect

Geology

Alteration processes:

The veining and related replacement in this area can be thought of as distal alteration to more intense, tin metallization at depth. Mass balance calculations show significant SiO2, Al2O3, alkali, and fluorine enrichment with this type of alteration (Sainsbury, 1968, p. 1567).

References

DEP	10308735
Reference	{Deposit:: Sainsbury, C.L., 1963, Beryllium deposits of the western Seward Peninsula, Alaska: U.S. Geological Survey Circular 479, 18 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:: Sainsbury, C.L., 1972, Geologic map of the Teller quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Map I-685, 4 p., 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.}
Reporter	Travis L. Hudson