Sumdum

United States· AlaskaUnknown
Contained Copper
—
Average Grade
0.57%
Deposit Type
VMS — Bimodal-Mafic
Discovery Year
1958

Overview

Massive, disseminations lens, 0.3 to 15 m thick. Exposed at surface on either side of the Sumdum glacier. Displaced continental margin, arc rift.

Geological Context

Tectonic Setting: Bimodal-mafic in epicontinental arc

Resources & Operations

Data Provenance

Source: USGS MRDS