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Nature of alkali-carbonate fluids in the sub-continental lithospheric mantle

Giuliani, Andrea; Kamenetsky, Vadim S; Phillips, David; Kendrick, Mark; Wyatt, B A; Goemann, Karsten

Description

Mantle xenoliths sampled by kimberlite and alkali basalt magmas show a range of metasomatic styles, but direct evidence for the nature of the metasomatising fl uids is often elusive. It has been suggested that carbonate-rich melts produced by partial melting of carbonated peridotites and eclogites play an important role in modifying the composition of the lithospheric mantle. These mantle-derived carbonate melts are often inferred to be enriched in alkali elements; however, alkali-rich...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/78332
Source: Geology
DOI: 10.1130/G33221.1

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