Sr, Nd, Hf and Pb isotope geochemistry of Early Miocene shoshonitic lavas from the South Fiji Basin: Note

New Zealand Journal of Geology and Geophysics
By: , and 

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Abstract

We present new Sr, Nd, Hf and Pb isotope data for Early Miocene shoshonitic and high-K lavas dredged from seamounts in the South Fiji Basin, southwest Pacific Ocean. Our analyses provide a useful reference dataset for this distinctive compositional suite. The shoshonitic lavas formed in an intra-oceanic back-arc basin setting and are broadly coeval with nearby arc and back-arc basin lavas. Further work in the region will be needed before the tectonic implications of the shoshonitic and high-K lavas are fully understood.

Publication type Article
Publication Subtype Journal Article
Title Sr, Nd, Hf and Pb isotope geochemistry of Early Miocene shoshonitic lavas from the South Fiji Basin: Note
Series title New Zealand Journal of Geology and Geophysics
DOI 10.1080/00288306.2021.1876110
Edition Online First
Year Published 2021
Language English
Publisher Taylor & Francis
Contributing office(s) Alaska Science Center Geology Minerals
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