Two pulses of oceanic environmental disturbance during the Permian-Triassic boundary crisis
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- 作者：Jun Shena ; shenjun_2009@163.com" class="auth_mail" title="E-mail the corresponding author ; Qinglai Fenga ; Thomas J. Algeoa ; b ; c ; Thomas.Algeo@uc.edu" class="auth_mail" title="E-mail the corresponding author ; Chao Lib ; Noah J. Planavskyd ; Lian Zhoua ; Mingliang Zhanga
- 关键词：Permian&ndash ; Triassic ; Fe speciation ; pyrite ; sulfur isotopes ; framboids ; paleoceanography
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：1 June 2016
- 年：2016
- 卷：443
- 期：Complete
- 页码：139-152
- 全文大小：6150 K
文摘
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Fe–S system was studied in a deepwater P–Tr boundary section (Xiakou, central China).
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Redox conditions changed from stably euxinic to fluctuating during the end-Permian.
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The onset of Fe–S system perturbations preceded the mass extinction by ∼10 kyr.
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Two euxinic pulses coincided with mass extinction episodes and volcanic eruptions.
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These relationships favor volcanism as the trigger for the end-Permian crisis.