Diagenetic Mg-calcite overgrowths on foraminiferal tests in the vicinity of methane seeps

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• 作者：Giuliana Panieri^a ; ^{giuliana.panieri@uit.no} ; Aivo Lepland^a ; ^b ; ^c ; ^d ; Martin J. Whitehouse^e ; Richard Wirth^f ; Morten P. Raanes^g ; Rachael H. James^h ; Carolyn A. Gravesⁱ ; Antoine Cré ; miè ; re^a ; ^b ; Andrea Schneider^a
• 关键词：foraminifera ; Mg-calcite ; diagenesis ; methane seeps ; authigenic carbonates
• 刊名：Earth and Planetary Science Letters
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：458
• 期：Complete
• 页码：203-212
• 全文大小：5487 K
• 卷排序：458

文摘

Foraminifera with authigenic overgrowths serve as tracers of methane emissions events. Authigenic phases cause anomalous 13C-depletions and Mg/Ca increase in foraminifera. In-situ analyses at the μm-scale of biogenic calcite are compulsory.