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Petrological and experimental evidence for differentiation of water-rich magmas beneath St. Kitts, Lesser Antilles

Blundy, J.D.; Melekhova, E; Martin, Rita; Arculus, Richard; Pichavant, Michel

Description

St. Kitts lies in the northern Lesser Antilles, a subduction-related intraoceanic volcanic arc known for its magmatic diversity and unusually abundant cognate xenoliths. We combine the geochemistry of xenoliths, melt inclusions and lavas with high pressure–temperature experiments to explore magma differentiation processes beneath St. Kitts. Lavas range from basalt to rhyolite, with predominant andesites and basaltic andesites. Xenoliths, dominated by calcic plagioclase and amphibole, typically...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/245920
Source: Contributions to Mineralogy and Petrology
DOI: 10.1007/s00410-017-1416-3
Access Rights: Open Access

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