Timing, duration, and causes for Late Jurassic-Early Cretaceous anoxia in the Barents Sea

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• 作者：Svetoslav V. Georgiev^a ; ^{georgiev@colostate.edu} ; Holly J. Stein^a ; ^b ; Judith L. Hannah^a ; ^b ; Guangping Xu^a ; Bernard Bingen^c ; Hermann M. Weiss^d ; ¹
• 关键词：Re&ndash ; Os ; geochronology ; shale ; redox ; time scale ; Hekkingen Formation
• 刊名：Earth and Planetary Science Letters
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：461
• 期：Complete
• 页码：151-162
• 全文大小：1255 K
• 卷排序：461

文摘

Hekkingen Formation shales were deposited in ∼19 Myr, from ∼157.7 Ma to ∼138.8 Ma. Re–Os ages constrain the onset and duration of regional anoxia. Radiometric ages refine the Jurassic time scale. Late Jurassic anoxia is likely related to warm climate. The long duration of anoxia required a sustained CO2 source.