Unnamed Prospect (ARDF - MC150; north of Chitistone River), Nizina Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - MC150; north of Chitistone River)	- not defined -
Nizina Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This prospect is on the north valley wall of the Chitistone River, one half mile west of Grotto Creek. It is at an elevation of about 4,000 feet, 5,000 feet southeast of elevation 6350 in the SE1/4 of section 35, T. 4 S., R. 16 E of the Copper River Meridian. This is locality 85 of MacKevett (1976); the location is accurate to within a few hundred feet.
Geology: The deposit at this prospect consists of small masses of unspecified copper minerals that are localized near the apex of an overturned fold in the Triassic Nikolai Greenstone (MacKevett, 1976). Some surface exploration took place here as recently as the 1970s (MacKevett, 1976). Copper mineralization is common in Nikolai Greenstone and is thought to have accompanied regional deformation and low-grade metamorphism in the Late Jurassic to Early Cretaceous (MacKevett and others, 1997).
Workings: Some surface exploration took place here as recently as the 1970s (MacKevett, 1976).
Age: Cretaceous? Copper mineralization is common in Nikolai Greenstone and is thought to have accompanied regional deformation and low-grade metamorphism in the Late Jurassic to Early Cretaceous (MacKevett and others, 1997).
Alteration: Oxidation?

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

Other Databases

Link to USGS - Alaska:	MC150

Other Regions, Features and Areas containing this locality

References