Elemental and isotopic variations in subduction-related basalts: evidence for a three component model

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Journal:Contributions to Mineralogy and Petrology

Abstract:Subduction related basalts display wide ranges in large ion lithophile element ratios (e.g., Rb/Ba and Rb/ Sr) which are unlikely to result from mixing, but suggest a role for small degree partial melting of a relatively Rb-poor mantle wedge source. However, these variations do not correlate with other trace element criteria, such as the depletions of high field strength elements (HFSE) and light rare earth elements (LREE) relative to the LILE, which characterise subduction related magmatism.

All the Authors:C. J. Hawkesworth

First Author:R. M. Ellam

Volume:1

Issue:98

Page Number:72-80

ISSN No.:00107999

Translation or Not:no

CN No.:null