Unnamed Occurrence (ARDF - IB003; beach near Yahtse River), Yakataga Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - IB003; beach near Yahtse River)	- not defined -
Yakataga Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

Location: This occurrence is on the present Gulf of Alaska shoreline near the mouth of the Yahtse River. It is 2.3 miles northwest of USGS benchmark Jarl. The occurrence, in section 6, T. 24 S., R. 24 E., of the Copper River Meridian, is sample location 155 of Foley and others (1995).
Geology: 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.
Workings: Reconnaissance characterization of beach samples has been completed in this area.
Age: Holocene.

Commodities (Major) - Au, Ti
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a - beach)

Other Databases

Link to USGS - Alaska:	IB003

Other Regions, Features and Areas containing this locality

References