The Unnamed (beach near Yahtse River) is a titanium and gold mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
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Unnamed (beach near Yahtse River) MRDS details
Site Name
Primary: Unnamed (beach near Yahtse River)
Commodity
Primary: Titanium
Primary: Gold
Location
State: Alaska
District: Yakataga
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Rutile
Ore: Pyrite
Ore: Magnetite
Ore: Ilmenite
Ore: Gold
Gangue: Zircon
Gangue: Sphene
Gangue: Garnet
Comments
Comment (Geology): Age = Holocene.
Comment (Reference): Primary Reference = Foley and others, 1995
Comment (Workings): Workings / Exploration = Reconnaissance characterization of beach samples has been completed in this area.
Comment (Geology): Geologic Description = Foley and others (1995) collected one beach sample at this location. Spiral concentrate from this sample contained less than 0.028 gram of gold per ton, 0.53 percent titanium, and 119 ppm zirconium. Thomas and Berryhill (1962) collected reconnaissance beach samples (IB001, IB002, and IB004) from this segment of the Gulf of Alaska shoreline that contained trace to small amounts of pyrite, magnetite, ilmenite, zircon, rutile, garnet, sphene, and gold. Their samples from the Icy Bay area a few miles to the west also contained magnetite, chromite, rutile, xenotime, and zircon. Along this segment of the beach, the magnetic fraction of the Thomas and Berryhill (1962) samples contained 5 pounds or less of iron per cubic yard and 0.7 pound of titanium oxide per cubic yard. The non-magnetic fraction contained as much as 4.7 pounds, but mostly less than 1.3 pounds, of titanium oxide per cubic yard.
Comment (Deposit): Model Name = Placer Au (Cox and Singer, 1986; model 39a - beach)
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Thomas, B.I., and Berryhill, R. V., 1962, Reconnaissance studies of Alaskan beach sands, eastern Gulf of Alaska: U.S. Bureau of Mines Report of Investigations 5986, 40 p.
Reference (Deposit): Foley, J.Y., La Berge, R.D., Grosz, A.E., Oliver, F.S., and Hirt, W.C., 1995, Onshore titanium and related heavy mineral investigations in the eastern Gulf of Alaska region, southern Alaska: U.S. Bureau of Mines Open-File Report 10-95, 125 p.
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