Alaska
Prospect
Idaho
Alaska, United States
Tin Zinc Lead Copper Silver Tungsten Fluorine-Fluorite
Land & claims · BLM · live
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Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.
Commodities
PrimaryTin, Zinc, Lead, Copper, Silver
SecondaryTungsten, Fluorine-Fluorite
Commodity typeMetallic
Deposit
Model43: Sn skarn
Materials
Ore mineralsCassiterite, Chalcopyrite, Galena, Sphalerite, Stannite
GangueCalcite, Fluorite, Idocrase, Magnetite, Pyrite, Pyrrhotite
Geology
AlterationAll of the veining in the area can be considered a type of alteration in the outer fringes of a significant hydrothermal system. This includes fluorite, laminar magnetite-fluorite-idocrase, and the sulfide-rich veins. Dolomitization is also locally devloped but it is not known how this is related to mineralization.
Economic & production
Development statusProspect
Community notes
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References
Knopf, Adolph, 1908, Geology of the Seward Peninsula tin deposits, Alaska: U.S. Geological Survey Bulletin 358, 71 p.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.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.Hudson, T.L., and Arth, J. G., 1983, Tin-granites of Seward Peninsula, Alaska: Geological Society of America Bulletin, v. 94, p. 768-790.Hudson, T.L., 1990, The Idaho deposits, Seward Peninsula, Alaska: Anchorage, Alaska, unpublished report to Barbara Winkley.Drechsler, J.S., Jr., 1995, Diamond drill hole summary (hole 1), Idaho prospect at Lost River, Seward Peninsula, Alaska: Anchorage, Alaska, unpublished report to Barbara Winkley, 14 p.Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.Hudson, T.L., 1983, Interim report on the Lost River district, Seward Peninsula, Alaska: Anchorage, Alaska, Anaconda Minerals Company internal report (Report held by Cook Inlet Region, Inc., Anchorage, Alaska).Sainsbury, C.L., 1969, Geology and ore deposits of the central York Mountains, western Seward Peninsula, Alaska: U.S. Geological Survey Bulletin 1287, 101 p.
Identification
Deposit ID10308734
RegionNA
Data scoreB
Coordinates65.44627, -167.1804
Base: USGS MRDS (public domain, frozen 2011). Community notes © their authors, CC-BY. Land data live from BLM.