Unnamed Prospect (ARDF - MC026; south bank of Kotsina River), Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - MC026; south bank of Kotsina River)	- not defined -
Chistochina 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 south bank of the Kotsina River, 2,200 feet downstream of the mouth of Amy Creek. It is at an elevation of 2,600 feet, 3,000 feet southeast of the center of section 1, T. 2 S., R. 8 E., of the Copper River Meridian. This is locality 170 of MacKevett (1976) and locality 6 of MacKevett and others (1978). The location is accurate to within about 100 feet.
Geology: The deposit at this prospect consists of pyrite- and chalcopyrite-bearing veins less than 30 centimeters thick that cut Triassic gabbro and Tertiary(?) felsic dikes. Some of the pyrite is localized along iron-stained fault zones (Moffit and Mertie, 1923). Samples of the mineralization contain as much as 3 parts per million (ppm) silver and 1,000 ppm copper. The deposits were explored by several short adits.
Workings: The deposits were explored by several short adits.
Age: Tertiary? The veins cut felsic dikes that may be Tertiary in age.
Alteration: Oxidation.

Commodities (Major) - Ag, Cu
Development Status: None
Deposit Model: Vein

Other Databases

Link to USGS - Alaska:	MC026

Other Regions, Features and Areas containing this locality

References