Shimokawa

Japan· HokkaidoUnknown
Contained Copper
—
Average Grade
2.28%
Deposit Type
VMS — Bimodal-Mafic
Discovery Year
—

Overview

Besshi-type. Ochiaizawa 2000 m x 750 m, Nakanosawa 550 m x 300 m, Iwaonaizawa 6000 m x 100 m. Average thickness 7 m, max. 25 m in Main orebody. Massive, banded, disseminated. Mid-ocean ridge or marginal to island arc setting.

Geological Context

Tectonic Setting: Pelite-mafic in mature oceanic backarc

Resources & Operations

Operator: 0

Production Start: 1941

Data Provenance

Source: USGS MRDS