Early Eocene clinoenstatite boninite and boninite-series dikes of the ophiolite of New Caledonia; a witness of slab-derived enrichment of the mantle wedge in a nascent volcanic arc

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Early Eocene clinoenstatite boninite and boninite-series dikes of the ophiolite of New Caledonia; a witness of slab-derived enrichment of the mantle wedge in a nascent volcanic arc

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作者：Dominique Cluzel^a ; ^{dominique.cluzel@univ-nc.nc" class="auth_mail" title="E-mail the corresponding author} ; Marc Ulrich^b ; ^{mulrich@unistra.fr" class="auth_mail" title="E-mail the corresponding author} ; Fred Jourdan^c ; ^{F.Jourdan@exchange.curtin.edu.au" class="auth_mail" title="E-mail the corresponding author} ; Sebastien Meffre^d ; ^{smeffre@utas.edu.au" class="auth_mail" title="E-mail the corresponding author} ; Jean-Louis Paquette^e ; ^{J.L.paquette@opgc.univ-bpclermont.fr" class="auth_mail" title="E-mail the corresponding author} ; Marc-Antoine Audet^f ; ^{marc-antoine257@hotmail.com" class="auth_mail" title="E-mail the corresponding author} ; Arianna Secchiari^g ; ^{arianna.secchiari@nemo.unipr.it" class="auth_mail" title="E-mail the corresponding author} ; Pierre Maurizot^h ; ^{pierre.maurizot@gouv.nc" class="auth_mail" title="E-mail the corresponding author}
关键词：Supra-subduction ; Fore-arc ; Clinoenstatite boninite ; Subduction inception ; REE ; Slab melt
刊名：Lithos
出版年：2016
出版时间：1 September 2016
年：2016
卷：260
期：Complete
页码：429-442
全文大小：3637 K

文摘

•: CE-boninite and boninite-series felsic dikes of New Caledonia yield Early Eocene ⁴⁰Ar/³⁹Ar and U–Pb zircon ages respectively
•: Geochemical modeling suggest source enrichment by subduction-derived fluids and MORB-like melt component
•: CE-boninite magma may have been in equilibrium with enstatite-bearing gabbro cumulates of the Peridotite Nappe

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