Silica-enriched mantle sources of subalkaline picrite-boninite-andesite island arc magmas

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Benard, A., Arculus, R. J., Nebel, O., Ionov, Dmitri, Mcalpine, S. R. B.
• Other Authors: Research School of Earth Sciences Canberra (RSES), Australian National University (ANU), Monash University Melbourne, Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2017
• Subjects: Silica enrichment; Peridotite; Subduction; Primary melt; Picrite; Boninite; [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry; Bismarck; Pacific; Kamchatka
• Online Access: https://hal.science/hal-01553520; https://doi.org/10.1016/j.gca.2016.09.030

Primary arc melts may form through fluxed or adiabatic decompression melting in the mantle wedge, or via a combination of both processes. Major limitations to our understanding of the formation of primary arc melts stem from the fact that most arc lavas are aggregated blends of individual magma batc...