Unnamed (on Mt. Young)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale JU
Quadrangle map, 1:63,360-scale D-5
Latitude 58.8583
Longitude -135.5886
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is 1/2 mile west of Mt. Young at an elevation of approximately 4,200 feet. It is in the SW1/4 section 4, T. 35 S., R. 59 E. of the Copper River Meridian. The location is accurate within 1/2 mile.

Geologic setting

Geologic description

The rocks in the vicinity are 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). This occurrence is in a geologically complex area characterized by a variety of metamorphic rocks, small granitic plutons, and mafic dikes (MacKevett and others, 1971). The occurrence is associated with volcanic rocks and consists of pyrite and chalcopyrite in a cellular siliceous matrix (Cobb, 1978 [OFR 78-374]).
Geologic map unit (-135.590455089421, 58.8579546364657)

Production and reserves

Workings or exploration Only surface examination of outcrops.
Indication of production None


MRDS Number A012078


Reporters J.C. Barnett and L.D. Miller (Juneau, Alaska )
Last report date 12/15/2001