Telaquana River Occurrence, Aniak Mining District, Bethel Census Area, Alaska, USAi

Regional Level Types
Telaquana River Occurrence	Occurrence
Aniak Mining District	Mining District
Bethel Census Area	Census Area
Alaska	State
USA	Country

Site is in Lake Clark National Park and Preserve.
Location: Approximately 1.8 km north (upstream) from confluence of an unnamed southward flowing stream and the Telaquana River. This is locality 3 of Nelson and others (1985) and locality 17 of MacKevett and Holloway (1977). SW1/4NW1/4 sec. 28, T. 10 N., R. 24 W., of the Seward Meridian. Accurate to within 450 m.
Geology: Sparse desseminations of molybdenite in contact zone of granodiorite and metamorphosed volcanic sedimentary rocks related to a roof pendant with marble that is heavily iron-stained and pyritized. Three of eight rock samples collected contained Mo, one sample with 3,200 ppm Mo (Nelson and others, 1985). The occurrence coincides with NW trending faults and a NE lineament. The granodiorite is a medium-gray, medium-grained biotite-hornblende granodiorite (Nelson and others, 1983, unit Ti16). Potassium-argon dates on biotite and hornblende from one speciman of this unit yielded ages of about 31 to 35 m.y. (Reed and Lanphere,1972; 1973).
Workings: Three of eight rock samples collected contained Mo (one with 3,200 ppm Mo). Nelson and others (1985) reported a weak halo of anomalous zinc concentration. No geochemical values provided.
Age: Tertiary or younger. Potassium-argon dates on biotite and hornblende from one granodiorite specimen yielded ages of about 31 to 35 m.y. (Reed and Lanphere,1972; 1973).
Alteration: Pyritization, strong iron-staining, and chlorite-epidote alteration of granodiorite.
Production: No production
Reserves: No reserves

Commodities (Major) - Mo
Development Status: None
Deposit Model: Porphyry Mo, Low - F (Cox and Singer, 1986; model 21b)

Other Databases

Link to USGS - Alaska:	LC003

Other Regions, Features and Areas containing this locality

References