Unnamed Occurrence (ARDF - BB001; beach southwest of Cinder River), Lake and Peninsula Borough, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - BB001; beach southwest of Cinder River)	- not defined -
Lake and Peninsula Borough	Borough
Alaska	State
USA	Country

This occurrence is located on state land.
Location: This site represents beach placer deposits that extend approximately 10 miles to the northeast and 5 miles to the southwest of Hook Lagoon, which is approximately 35 miles southwest of the mouth of Cinder River. The location is accurate as plotted (MacKevett and Holloway, 1977, locality 1; Church and others, 1989, locality 22).
Geology: This occurrence consists of narrow beach deposits of black sand which occur primarily along the strand line. The black sand forms thin veneers of surf-washed titaniferous magnetite, ilmenite, and pyroxene. To test the sands the U.S. Bureau of Mines (Berryhill, 1963) drilled 15 auger holes along 15 miles of beach. The holes varied from 3.4 to 9 feet in depth. The drill samples were analyzed for iron and titanium oxide. The magnetic fraction contained 3.6 to 41 pounds of iron and 1.5 to 9.2 pounds of titanium oxide per cubic yard. The non-magnetic fraction contained 0.4 to 1.6 pounds of titanium oxide per cubic yard (Berryhill, 1963). Trace amounts of flour gold were recovered from two of the holes.
Workings: In 1963 the U.S. Bureau of Mines drilled 15 holes to test the titanium content of the black sands. The magnetic fraction contained 3.6 to 41 pounds of iron and 1.5 to 9.2 pounds of titanium oxide per cubic yard. The non-magnetic fraction contained 0.4 to 1.6 pounds of titanium oxide per cubic yard. Trace amounts of flour gold were recovered from two of the holes.
Age: Quaternary.

Commodities (Major) - Au, Fe, Ti
Development Status: None
Deposit Model: Shoreline placer titanium (Cox and Singer, 1986; model 39c)

Other Databases

Link to USGS - Alaska:	BB001

Other Regions, Features and Areas containing this locality

References