气候变化领域集成服务门户(CCPortal): Enhanced east pacific rise hydrothermal activity during the last two glacial terminations

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DOI	10.1126/science.aad4296
	Enhanced east pacific rise hydrothermal activity during the last two glacial terminations
	Lund D.C.; Asimow P.D.; Farley K.A.; Rooney T.O.; Seeley E.; Jackson E.W.; Durham Z.M.
发表日期	2016
ISSN	0036-8075
起始页码	478
结束页码	482
卷号	351 期号:6272
英文摘要	Mid-ocean ridge magmatism is driven by seafloor spreading and decompression melting of the upper mantle. Melt production is apparently modulated by glacial-interglacial changes in sea level, raising the possibility that magmatic flux acts as a negative feedback on ice-sheet size. The timing of melt variability is poorly constrained, however, precluding a clear link between ridge magmatism and Pleistocene climate transitions. Here we present well-dated sedimentary records from the East Pacific Rise that show evidence of enhanced hydrothermal activity during the last two glacial terminations. We suggest that glacial maxima and lowering of sea level caused anomalous melting in the upper mantle and that the subsequent magmatic anomalies promoted deglaciation through the release of mantle heat and carbon at mid-ocean ridges.
英文关键词	carbon; decomposition analysis; deglaciation; glacial-interglacial cycle; hydrothermal activity; ice sheet; mid-ocean ridge; Pleistocene; sea level; sea level change; seafloor spreading; upper mantle; Article; decompression; deglaciation; electron spin resonance; glacial period; interglacial; melting point; Pacific Ocean; plankton; priority journal; sea level; sediment; East Pacific Rise; Pacific Ocean
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/244595
作者单位	Deptartment of Marine Sciences, University of Connecticut, Groton, CT 06340, United States; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; Department of GeologicalSciences, Michigan State University, East Lansing, MI 48824, United States; Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109, United States
推荐引用方式 GB/T 7714	Lund D.C.,Asimow P.D.,Farley K.A.,et al. Enhanced east pacific rise hydrothermal activity during the last two glacial terminations[J],2016,351(6272).
APA	Lund D.C..,Asimow P.D..,Farley K.A..,Rooney T.O..,Seeley E..,...&Durham Z.M..(2016).Enhanced east pacific rise hydrothermal activity during the last two glacial terminations.Science,351(6272).
MLA	Lund D.C.,et al."Enhanced east pacific rise hydrothermal activity during the last two glacial terminations".Science 351.6272(2016).