A negative carbon isotope anomaly associated with the earliest Lopingian (Late Permian) mass extinction
A negative carbon isotope anomaly associated with the earliest Lopingian (Late Permian) mass extinction
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DOI：
10.1016/j.palaeo.2005.04.013
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发表时间：
2005-07
期刊：
影响因子：
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通讯作者：
K. Kaiho;Zhong‐Qiang Chen;Tomoyuki Ohashi;Tetsuya Arinobu;K. Sawada;B. S. Cramer
中科院分区：
文献类型：
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作者：
K. Kaiho;Zhong‐Qiang Chen;Tomoyuki Ohashi;Tetsuya Arinobu;K. Sawada;B. S. Cramer
古生代生命在晚二叠纪初期（最早的洛平纪，2.6亿年前）和末期（2.51亿年前）的两次大规模灭绝事件中受到严重影响。然而，最早的洛平纪危机的生物和地球化学记录仍然缺乏足够的证据。我们对华南地层的分析表明，稳定碳同位素比值的负异常伴随着晚二叠世初期海洋动物群的突然灭绝，这与二叠纪末和白垩纪末（6500万年前）灭绝事件中观察到的模式相似。
Palaeozoic life was severely affected in a pair of mass extinction events at the beginning (earliest Lopingian, 260 million years ago) and the end (251 million years ago) of the Late Permian. However, the biological and geochemical record of the earliest Lopingian crisis remains poorly constrained. We present analyses of strata in South China showing that a negative anomaly of stable carbon isotope ratios accompanied an abrupt extinction of marine faunas at the beginning of the Late Permian, similar to patterns observed at the end-Permian and the end-Cretaceous (65 million years ago) extinction events.