Early Bird

United States· CaliforniaUnknown

Contained Copper

—

Average Grade

4.30%

Deposit Type

VMS — Bimodal-Felsic

Discovery Year

1918

Overview

Massive, 0.006 km thickness, elongate.

Geological Context

Tectonic Setting: Siliciclastic-felsic in mature epicontinental arc

Resources & Operations

Production Start: 1918

Data Provenance

Source: USGS MRDS

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