Threeman-Standard Copper
United States· AlaskaUnknown
Overview
Massive, disseminations, lenses up to 2 m thick. Tholeiitic midocean spreading center near a subduction zone.
Geological Context
Tectonic Setting: Mafic in midoceanic ridge
Resources & Operations
Operator: 0
Production Start: 1904
Data Provenance
Source: USGS MRDS