Spenceville

United States· CaliforniaUnknown
Contained Copper
—
Average Grade
5.00%
Deposit Type
VMS — Bimodal-Mafic
Discovery Year
1860

Overview

Massive tabular. Rift basin.

Geological Context

Tectonic Setting: Bimodal-mafic in oceanic arc

Resources & Operations

Operator: 0

Production Start: 1875

Data Provenance

Source: USGS MRDS