Arctic

United States· AlaskaUnknown
Contained Copper
1.5 Mt
Average Grade
4.00%
Deposit Type
VMS — Bimodal-Felsic
Discovery Year
1965

Overview

Massive, semi-massive, 0.09 km thickness, multiple stacked lenses within 80 m stratigraphic interval. Three horizons are Main,Warm Creek and South, as irregular, tabular sheets. Footwall funnel-shaped chloritic alteration zone with stringers of pyrite-chalcopyrite, but no stockwork veins. Displaced continental margin, incipient intracontinental rift.

Geological Context

Tectonic Setting: Siliciclastic-felsic in mature epicontinental arc

Resources & Operations

Operator: 0

Data Provenance

Source: USGS MRDS