Abstracts of Annual Meeting of the Geochemical Society of Japan
Abstracts of Annual Meeting of the Geochemical Society of Japan
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Mantle heterogeneity beneath the NW Pacific Plate investigated using volatile and trace element compositions of petit-spot basalts
*Sano MakotoHirano NaotoOkumura SatoshiAkizawa NorikatsuTamura AkihiroMorishita Tomoaki
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Pages 263-

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Abstract

Petit-spot volcanism provide information on the asthenosphere beneath an old plate. Here, this study reports the volatile, major, and trace element compositions of quenched glass of petit-spot basalts and identify the chemical composition of upper mantle beneath the NW Pacific plate, where some enriched materials are recognized in spite of asthenosphere.

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