气候变化领域集成服务门户(CCPortal): Ocean acidification and the Permo-Triassic mass extinction

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DOI	10.1126/science.aaa0193
	Ocean acidification and the Permo-Triassic mass extinction
	Clarkson M.O.; Kasemann S.A.; Wood R.A.; Lenton T.M.; Daines S.J.; Richoz S.; Ohnemueller F.; Meixner A.; Poulton S.W.; Tipper E.T.
发表日期	2015
ISSN	0036-8075
起始页码	229
结束页码	232
卷号	348 期号:6231
英文摘要	Ocean acidification triggered by Siberian Trap volcanism was a possible kill mechanism for the Permo-Triassic Boundary mass extinction, but direct evidence for an acidification event is lacking. We present a high-resolution seawater pH record across this interval, using boron isotope data combined with a quantitative modeling approach. In the latest Permian, increased ocean alkalinity primed the Earth system with a low level of atmospheric CO2 and a high ocean buffering capacity. The first phase of extinction was coincident with a slow injection of carbon into the atmosphere, and ocean pH remained stable. During the second extinction pulse, however, a rapid and large injection of carbon caused an abrupt acidification event that drove the preferential loss of heavily calcified marine biota. © 2015, American Association for the Advancement of Science. All rights reserved.
英文关键词	boron; carbon; carbon dioxide; isotope; sea water; acidification; mass extinction; qualitative analysis; seawater; Triassic; volcanism; voltinism; acidification; alkalinity; Article; astronomy; atmosphere; biota; carbon cycle; mass extinction; priority journal; quantitative analysis; sea; Triassic; animal; aquatic species; chemistry; ecosystem; pH; sea; species extinction; time; Animals; Aquatic Organisms; Atmosphere; Boron; Carbon; Carbon Cycle; Carbon Isotopes; Ecosystem; Extinction, Biological; Hydrogen-Ion Concentration; Isotopes; Oceans and Seas; Seawater; Time
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243343
作者单位	School of Geosciences, University of Edinburgh, West Mains Road, Edinburgh, EH9 3FE, United Kingdom; Faculty of Geosciences, MARUM-Center for Marine Environmental Sciences, University of Bremen, Bremen, 28334, Germany; College of Life and Environmental Sciences, University of Exeter, Laver Building, North Parks Road, Exeter, EX4 4QE, United Kingdom; Institute of Earth Sciences, NAWI Graz, University of Graz, Heinrichstraße 26, Graz, 8010, Austria; School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, United Kingdom; Department of Chemistry, University of Otago, Union Street, Post Office Box 56, Dunedin, 9016, New Zealand
推荐引用方式 GB/T 7714	Clarkson M.O.,Kasemann S.A.,Wood R.A.,et al. Ocean acidification and the Permo-Triassic mass extinction[J],2015,348(6231).
APA	Clarkson M.O..,Kasemann S.A..,Wood R.A..,Lenton T.M..,Daines S.J..,...&Tipper E.T..(2015).Ocean acidification and the Permo-Triassic mass extinction.Science,348(6231).
MLA	Clarkson M.O.,et al."Ocean acidification and the Permo-Triassic mass extinction".Science 348.6231(2015).