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Generation of metal-rich felsic magmas during crustal anatexis

Tomkins, Andrew; Mavrogenes, John


We show that partial melting of a preexisting mineral deposit during regional anatexis is likely to lead to incorporation of sulfide melt into silicate melt. Simple dissolution of metals in silicate melt during anatexis leads to minor metal addition to escaping magma, but physical entrainment of sulfide melt can lead to extreme enrichment and higher total metal incorporation. Metal enrichment is enhanced if melt segregation is structurally driven; only dissolved metal is incorporated if initial...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Geology
DOI: 10.1130/G19499.1


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