Uchi

Overview

Massive, dissemination, lenses, 0.05 km thickness. No stockwork below. Volcanic rocks show a continuous compositional range from rhyolite to basalt with felsic volcanics dominating the volcanic sequence.

Geological Context

Tectonic Setting: Bimodal-felsic in oceanic arc

Resources & Operations

Production Start: 1971

Data Provenance

Source: USGS MRDS