Spence

Overview

Supergene-enriched porphyry Cu deposit in northern Chile.

Geological Context

Host Rock: Diorite porphyry (Paleocene)

Tectonic Setting: Continental arc

Geological Province: Central Andes

Metallogenic Belt: Andean Porphyry Belt

Resources & Operations

Operator: BHP

Mining Method: Open Pit

Production Start: 2006

Data Provenance

Source: BHP reports

Last Verified: 2025-12-01