Unnamed (west of Mt. Elder)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu; Mn
Ore minerals psilomelane; pyrite; secondary cu mineral

Geographic location

Quadrangle map, 1:250,000-scale JU
Quadrangle map, 1:63,360-scale D-6
Latitude 58.9785
Longitude -135.8536
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the west side of Mt. Elder at an elevation of about 3,700 feet. It is in the SE1/4 section 26, T. 33 S., R. 57 E. of the Copper River Meridian. It is location number J002 of Wells and others (1986). The location is accurate within 1/2 mile.

Geologic setting

Geologic description

Wells and others (1986) describe this deposit as psilomelane, pyrite, and secondary Cu minerals in a siliceous gangue associated with volcanic rocks. No other information is available. The area is underlain by deformed and metamorphosed Silurian or Devonian carbonate, clastic and volcanic clastic rocks that have been intruded by Upper Jurassic and Lower Cretaceous granitic and dioritic rocks (Brew and others, 1992). The host country rocks at the occurrence are metamorphosed Silurian and Devonian graywacke and argillite that have been intruded by non-foliated Cretaceous and Tertiary granodiorite (Brew and others, 1978).
Geologic map unit (-135.855483203369, 58.9781201893545)

Production and reserves

Indication of production None