Unnamed Prospect (ARDF - TK038; northwest of lower Jay Creek), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - TK038; northwest of lower Jay Creek)	- not defined -
Valdez Creek Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

MAS/MIL number 20760091.
Location: This prospect is at an elevation of about 4,200 feet, 0.6 mile southeast of hill 5483, in the NW1/4NW1/4 sec. 17, T. 32 N., R. 9 E., Seward Meridian The location is accurate to within 1/4 mile. This is locality B29 of Kurtak and others (1992).
Geology: This prospect consists of disseminated pyrite and pyrrhotite in Pennsylvanian to Lower Permian mafic metavolcanic rocks (Csejtey and others, 1978; Kurtak and others, 1992). Workings consist of a 3-foot-deep prospect pit. Malachite-bearing quartz veins cut the metavolcanic rocks. A U.S. Bureau of Mines sample of a malachite-stained quartz vein contains 596 parts per million copper and 130 parts per million arsenic (Kurtak and others, 1992). A sample of intermediate volcanic rock contains 200 parts per million arsenic and 10 parts per million bismuth (Miller and others, 1978). Workings consist of a 3-foot-deep prospect pit.
Workings: Workings consist of a 3-foot-deep prospect pit. Limited sampling by the Bureau of Mines (Kurtak and others, 1992) and the U.S. Geological Survey (Miller and others, 1978).
Alteration: Oxidation of copper mineral.

Commodities (Major) - Cu; (Minor) - As, Bi
Development Status: None
Deposit Model: Basaltic copper? (Cox and Singer, 1986; model 23?)

Other Databases

Link to USGS - Alaska:	TK038

Other Regions, Features and Areas containing this locality

References