Slab melting and magma formation beneath the southern Cascade arc
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- 作者：K.J. Walowskia ; b ; k.walowski@ed.ac.uk" class="auth_mail" title="E-mail the corresponding author ; P.J. Wallacea ; M.A. Clynnec ; D.J. Rasmussend ; D. Weise
- 关键词：subduction zone ; volatiles ; cascades ; melt inclusions ; geochemistry ; arc
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：15 July 2016
- 年：2016
- 卷：446
- 期：Complete
- 页码：100-112
- 全文大小：2617 K
文摘
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δ11B values are consistent with an extensively dehydrated downgoing slab.
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Most samples retain primary H2O and Cl contents derived from a hydrous slab component.
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Fluids from the mantle portion of the slab cause flux melting of slab top.
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Peridotite melting in the sub-arc mantle wedge is driven by hydrous slab melt addition.