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Characterizing the effect of mantle source, subduction input and melting in the Fonualei Spreading Center, Lau Basin: Constraints on the origin of the boninitic signature of the back-arc lavas

Escrig, S; Bezos, A; Langmuir, C.H; Michael, PJ; Arculus, Richard

Description

New major element, trace element and Pb-Sr-Nd isotope data for glasses from the Fonualei Spreading Center (FSC) constrain the genesis of back-arc basin basalts and the origins of boninites. The FSC is an end-member for global back-arc lavas in terms of low Ti 8.0 and Na 8.0, and contains lavas with a boninitic signature. Latitudinal variations reveal a correspondence in location between back-arc and adjacent arc volcanism. The locations of spikes in subduction input and positive bathymetric...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/68401
Source: Geochemistry, Geophysics, Geosystems. G3
DOI: 10.1029/2012GC004130

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