Unnamed Prospect (ARDF - HE171; near summit of Gold Hill), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - HE171; near summit of Gold Hill)	- not defined -
Valdez Creek Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

See also HE172 and HE173.
Location: This prospect is at an elevation of about 4,400 feet, about 0.5 mile southwest of the summit of Gold Hill, the first ridge northwest of the junction of Butte and Wickersham creeks. The site is in sec. 16, T. 21 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet.
Geology: The country rocks in the area of this prospect are deformed and metamorphosed Lower Cretaceous and Upper Jurassic turbidites (Wilson and others, 1998) cut by Lower Tertiary to Upper Cretaceous(?) diorite and quartz monzonite (Smith and others, 1988). The deposit is in metasedimentary and altered intrusive rocks, and consists of widely-spaced zones of disseminated molybdenite. This deposit probably is related to other porphyry-type deposits in the Gold Hill area (HE172 and HE173).
Workings: This prospect has been explored by soil sampling and trenching. At least two shallow drill holes totaling 220 feet, were completed in the 1970's (D.L. Stevens, oral communication, 1999). Geophysical exploration has included a regional aeromagnetic survey over the prospect and surrounding area, as well as ground magnetics, IP, and EM.
Age: Probably Late Cretaceous or younger.

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

Other Databases

Link to USGS - Alaska:	HE171

Other Regions, Features and Areas containing this locality

References