New insights into the Aeolian Islands and other arc source compositions from high-precision olivine chemistry

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• 作者：Denis Zamboni^a ; ^b ; Jarek Trela^a ; Esteban Gazel^a ; ^{egazel@vt.edu} ; Alexander V. Sobolev^c ; ^d ; Claudia Cannatelli^e ; Federico Lucchi^f ; Valentina G. Batanova^c ; ^d ; Benedetto De Vivo^b
• 关键词：Mantle source ; Olivine chemistry ; Arc magmas ; Aeolian arc ; Melt oxidation state
• 刊名：Lithos
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：272-273
• 期：Complete
• 页码：185-191
• 全文大小：2619 K
• 卷排序：272

文摘

Nickel concentrations in olivine are the most reliable "pyroxenite components" tracer in arc and OIB settings. Calcium concentrations in olivine are likely controlled by water contents in primary arc magmas. Fe/Mn can be affected by the oxidation state of the mantle wedge. Our data suggest a dominant hydrous peridotite source beneath the Aeolian Islands. Alicudi data are the exceptions as they infer the presence of a pyroxenite component.