气候变化领域集成服务门户(CCPortal): Atmospheric carbon injection linked to end-Triassic mass extinction

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DOI	10.1126/science.1204255
	Atmospheric carbon injection linked to end-Triassic mass extinction
	Ruhl M.; Bonis N.R.; Reichart G.-J.; Sinninghe Damsté J.S.; Kürschner W.M.
发表日期	2011
ISSN	0036-8075
起始页码	430
结束页码	434
卷号	333 期号:6041
英文摘要	The end-Triassic mass extinction (∼201.4 million years ago), marked by terrestrial ecosystem turnover and up to ∼50% loss in marine biodiversity, has been attributed to intensified volcanic activity during the break-up of Pangaea. Here, we present compound-specific carbon-isotope data of long-chain n-alkanes derived from waxes of land plants, showing a ∼8.5 per mil negative excursion, coincident with the extinction interval. These data indicate strong carbon-13 depletion of the end-Triassic atmosphere, within only 10,000 to 20,000 years. The magnitude and rate of this carbon-cycle disruption can be explained by the injection of at least ∼12 × 10 3 gigatons of isotopically depleted carbon as methane into the atmosphere. Concurrent vegetation changes reflect strong warming and an enhanced hydrological cycle. Hence, end-Triassic events are robustly linked to methane-derived massive carbon release and associated climate change.
英文关键词	alkane derivative; carbon; carbon 13; methane; alkane; carbon cycle; carbon isotope; climate variation; hydrological cycle; marine ecosystem; mass extinction; methane; paleoclimate; paleotemperature; Pangaea; terrestrial ecosystem; Triassic; turnover; vegetation dynamics; volcanism; article; atmosphere; carbon cycle; Embryophyta; end Triassic mass extinction; hydrology; priority journal; vegetation; warming; Alkanes; Atmosphere; Biodiversity; Carbon Cycle; Carbon Dioxide; Carbon Isotopes; Climate Change; Ecosystem; Extinction, Biological; Geologic Sediments; Methane; Plants; Time; Embryophyta
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/245304
作者单位	Institute of Environmental Biology, Faculty of Science, Utrecht University, Budapestlaan 4, NL-3584 CD, Utrecht, Netherlands; Nordic Centre for Earth Evolution (NordCEE), Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, DK-1350, Copenhagen K, Denmark; Shell Global Solutions International B.V, Kessler Park 1, 2288 GS, Rijswijk, Netherlands; Department of Earth Sciences, Faculty of Geosciences, Utrecht University, Post Office Box 80.021, NL-3508 TA, Utrecht, Netherlands; Department of Marine Organic Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Post Office Box 59, 1790 AB, Den Burg, Netherlands; Department of Geosciences, University of Oslo, Blindern, 0316 Oslo, Norway
推荐引用方式 GB/T 7714	Ruhl M.,Bonis N.R.,Reichart G.-J.,et al. Atmospheric carbon injection linked to end-Triassic mass extinction[J],2011,333(6041).
APA	Ruhl M.,Bonis N.R.,Reichart G.-J.,Sinninghe Damsté J.S.,&Kürschner W.M..(2011).Atmospheric carbon injection linked to end-Triassic mass extinction.Science,333(6041).
MLA	Ruhl M.,et al."Atmospheric carbon injection linked to end-Triassic mass extinction".Science 333.6041(2011).