Threeman-Standard Copper

United States· AlaskaUnknown
Contained Copper
—
Average Grade
1.08%
Deposit Type
VMS — Bimodal-Mafic
Discovery Year
1904

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