气候变化领域集成服务门户(CCPortal): Atmospheric carbon dioxide concentration across the mid-pleistocene transition

CCPortal

DOI	10.1126/science.1171477
	Atmospheric carbon dioxide concentration across the mid-pleistocene transition
	Hönisch B.; Hemming N.G.; Archer D.; Siddall M.; McManus J.F.
发表日期	2009
ISSN	0036-8075
起始页码	1551
结束页码	1554
卷号	324 期号:5934
英文摘要	The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 years to 100,000 years, for as yet unknown reasons. Here we present a 2.1-million-year record of sea surface partial pressure of CO2 (PCO2), based on boron isotopes in planktic foraminifer shells, which suggests that the atmospheric partial pressure of CO2 (pCO2) was relatively stable before the mid-Pleistocene climate transition. Glacial PCO2 was ̃31 microatmospheres higher before the transition (more than 1 million years ago), but interglacial PCO2 was similar to that of late Pleistocene interglacial cycles (<450,000 years ago). These estimates are consistent with a close linkage between atmospheric CO2 concentration and global climate, but the lack of a gradual decrease in interglacial PCO2 does not support the suggestion that a long-term drawdown of atmospheric CO2 was the main cause of the climate transition.
英文关键词	boron; carbon dioxide; atmospheric pressure; boron isotope; carbon dioxide; climate variation; drawdown; global climate; interglacial; paleoclimate; partial pressure; planktonic foraminifera; Pleistocene; shell; article; atmosphere; atmospheric pressure; carbon dioxide tension; concentration (parameters); glacial period; global climate; Middle Pleistocene; priority journal; sea surface waters; Foraminifera
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/244053
作者单位	Department of Earth and Environmental Sciences, Lamont-Doherty Earth Observatory of Columbia University, NY 10964-8000, United States; School of Earth and Environmental Sciences, Queens College, NY, 11367-1597, United States; Department of Geophysical Sciences, University of Chicago, Chicago, IL 60637, United States; Department of Earth Sciences, University of Bristol, Bristol, United Kingdom
推荐引用方式 GB/T 7714	Hönisch B.,Hemming N.G.,Archer D.,et al. Atmospheric carbon dioxide concentration across the mid-pleistocene transition[J],2009,324(5934).
APA	Hönisch B.,Hemming N.G.,Archer D.,Siddall M.,&McManus J.F..(2009).Atmospheric carbon dioxide concentration across the mid-pleistocene transition.Science,324(5934).
MLA	Hönisch B.,et al."Atmospheric carbon dioxide concentration across the mid-pleistocene transition".Science 324.5934(2009).