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High temperature gas-solid reactions in calc-silicate Cu-Au skarn formation; Ertsberg, Papua Province, Indonesia

Henley, Richard; Brink, Frank; King, Penelope; Leys, Clyde; Ganguly, Jibamitra; Mernagh, Terry; Middleton, Jill; Renggli, Christian; Sieber, Melanie Jutta; Troitzsch, Ulrike; Turner, Michael

Description

The 2.7–3 Ma Ertsberg East Skarn System (Indonesia), adjacent to the giant Grasberg Porphyry Copper deposit, is part of the world’s largest system of Cu–Au skarn deposits. Published fluid inclusion and stable isotope data show that it formed through the flux of magma-derived fluid through contact metamorphosed carbonate rock sequences at temperatures well above 600° C and pressures of less than 50 MPa. Under these conditions, the fluid has very low density and the properties of a gas. Combining...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/238502
Source: Contributions to Mineralogy and Petrology
DOI: 10.1007/s00410-017-1413-6

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