Volcanism, Mass Extinction, and Carbon Isotope Fluctuations in the Middle Permian of China
Volcanism, Mass Extinction, and Carbon Isotope Fluctuations in the Middle Permian of China
复制标题
中国中二叠世的火山活动、生物大灭绝和碳同位素波动
DOI:
10.1126/science.1171956
复制
发表时间:
2009-05
期刊:
影响因子:
56.9
通讯作者:
Widdowson, Mike
中科院分区:
文献类型:
--
作者:
Sun, Yadong;Lai, Xulong;Wignall, Paul B.;Ali, Jason R.;Jiang, Haishui;Vedrine, Stephanie;Bottrell, Simon H.;Newton, Robert J.;Izon, Gareth;Cope, Helen;Bond, David P. G.;Widdowson, Mike
Middle Permian Extinction A major extinction in the Middle Permian 260 to 270 million years ago preceded the huge end-Permian extinction. Wignall et al. (p. 1179) present a detailed analysis of the Middle Permian event from rocks in southwest China. The extinction coincided with extensive nearby volcanic eruptions. A major drop in carbon isotope values followed the extinction event, implying massive disruption of the carbon cycle. Fossiliferous rocks from southwest China show that a major extinction in the Middle Permian coincided with extensive volcanic eruptions. The 260-million-year-old Emeishan volcanic province of southwest China overlies and is interbedded with Middle Permian carbonates that contain a record of the Guadalupian mass extinction. Sections in the region thus provide an opportunity to directly monitor the relative timing of extinction and volcanism within the same locations. These show that the onset of volcanism was marked by both large phreatomagmatic eruptions and extinctions amongst fusulinacean foraminifers and calcareous algae. The temporal coincidence of these two phenomena supports the idea of a cause-and-effect relationship. The crisis predates the onset of a major negative carbon isotope excursion that points to subsequent severe disturbance of the ocean-atmosphere carbon cycle.
登录
查看更多内容
DOI:
10.5860/choice.37-5113
发表时间:
1999
期刊:
--
影响因子:
--
作者:
V. Courtillot;Joe McClinton
通讯作者:
V. Courtillot;Joe McClinton
影响因子:
2.9
作者:
P. Wignall;R. Newton
通讯作者:
P. Wignall;R. Newton
影响因子:
4.4
作者:
MCCREA, JM
通讯作者:
MCCREA, JM
影响因子:
3
作者:
Sun, Yadong;Bond, D. P. G.;John, E. H.;Wang, Wei;Lai, Xulong;Jiang, Haishui;Wignall, P. B.;Ali, J. R.
通讯作者:
Ali, J. R.
影响因子:
56.9
作者:
S. Self;S. Blake;K. Sharma;M. Widdowson;Sarah Sephton
通讯作者:
S. Self;S. Blake;K. Sharma;M. Widdowson;Sarah Sephton