Disentangling the record of diagenesis, local redox conditions, and global seawater chemistry during the latest Ordovician glaciation

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• 作者：Anne-Sofie C. Ahm^a ; ^{ascahm@gmail.com} ; Christian J. Bjerrum^a ; Emma U. Hammarlund^b
• 关键词：glacioeustasy ; deep water anoxia ; Hirnantian extinction ; multivariate statistics ; iron speciation ; sulfur isotopes
• 刊名：Earth and Planetary Science Letters
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：459
• 期：Complete
• 页码：145-156
• 全文大小：1038 K
• 卷排序：459

文摘

Persistent local deep water anoxia through the latest Ordovician. Intense modern weathering processes significantly affect Fe and S chemistry in outcrop samples. Ordovician glacio-eustasy drove spatial gradients in δ13CDIC decoupled from the open ocean.