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Porphyry copper deposit formation by sub-volcanic sulphur dioxide flux and chemisorption

Henley, Richard W.; King, Penelope L.; Wykes, Jeremy L.; Renggli, Christian J.; Brink, Frank J.; Clark, David A.; Troitzsch, Ulrike


Porphyry copper deposits—the primary source of the world’s copper—are a consequence of the degassing of intrusion complexes in magmatic arcs associated with ancient subduction zones¹, ². They are characterized by copper and iron sulphides, commonly found with anhydrite (CaSO₄), over scales of several kilometres through intensely altered and fractured rocks1. The magmatic source of the metals is broadly understood, but the processes that transport and deposit the metals at the megaton scale are...[Show more]

CollectionsANU Research Publications
Date published: 2015-02-27
Type: Journal article
Source: Nature Geoscience
DOI: 10.1038/ngeo2367


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