Overview

One of the world's largest Cu-Au porphyry systems. Hugo Dummett deposit in block cave production.

Geological Context

Host Rock: Basalt and andesite (Devonian)

Tectonic Setting: Island arc

Geological Province: Central Asian Orogenic Belt

Metallogenic Belt: Central Asian Porphyry Belt

Operator: Rio Tinto/Turquoise Hill

Mining Method: Block Caving

Production Start: 2013

Source: Rio Tinto reports; Wainwright et al. (2011)

Last Verified: 2026-01-15

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