气候变化领域集成服务门户(CCPortal): Paleoclimate: Rapid acidification of the ocean during the paleocene-eocene thermal maximum

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DOI	10.1126/science.1109004
	Paleoclimate: Rapid acidification of the ocean during the paleocene-eocene thermal maximum
	Zachos J.C.; Röhl U.; Schellenberg S.A.; Sluijs A.; Hodell D.A.; Kelly D.C.; Thomas E.; Nicolo M.; Raffi I.; Lourens L.J.; McCarren H.; Kroon D.
发表日期	2005
ISSN	0036-8075
起始页码	1611
结束页码	1615
卷号	308 期号:5728
英文摘要	The Paleocene-Eocene thermal maximum (PETM) has been attributed to the rapid release of ∼2000 × 10 9 metric tons of carbon in the form of methane. In theory, oxidation and ocean absorption of this carbon should have lowered deep-sea pH, thereby triggering a rapid (<10,000-year) shoaling of the calcite compensation depth (CCD), followed by gradual recovery. Here we present geochemical data from five new South Atlantic deep-sea sections that constrain the timing and extent of massive sea-floor carbonate dissolution coincident with the PETM. The sections, from between 2.7 and 4.8 kilometers water depth, are marked by a prominent clay layer, the character of which indicates that the CCD shoaled rapidly (<10,000 years) by more than 2 kilometers and recovered gradually (>100,000 years). These findings indicate that a large mass of carbon (≫2000 × 10 9 metric tons of carbon) dissolved in the ocean at the Paleocene-Eocene boundary and that permanent sequestration of this carbon occurred through silicate weathering feedback.
英文关键词	Acidification; Ocean absorption; Paleocene-Eocene thermal maximum (PETM); Sequestration; Calcite; Carbon; Data acquisition; Dissolution; Geochemistry; Methane; Oxidation; pH effects; Silicates; Oceanography; calcium carbonate; carbon; methane; silicate; acidification; Eocene; Paleocene; paleoclimate; acidification; article; clay; deep sea; Eocene; geochemistry; ocean environment; oxidation; Paleocene; priority journal; thermal analysis
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/246126
作者单位	Earth Sciences Department, Earth and Marine Sciences Building, University of California, Santa Cruz, Santa Cruz, CA 95064, United States; Deutsche Forschungsgemeinschaft (DFC) Research Center for Ocean Margins, University of Bremen, Leobener Strasse, 28359 Bremen, Germany; Department of Geological Sciences, San Diego State University, S500 Campanile Drive, San Diego, CA 92182-1020, United States; Laboratory of Palaeobotany and Palynology, Department of Palaeo-Ecology, Netherlands; Faculty of Geosciences, Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, Netherlands; Department of Geological Sciences, University of Florida, 241 Williamson Hall, Post Office Box 112120, Gainesville, FL 32611, United States; Department of Geology and Geophysics, University of Wisconsin, Madison, 1215 West Dayton Street, Madison, WI 53706, United States; Wesleyan University, 265 Church Street, Middletown, CT 06459-0139, United States; Department of Geology and Geophysics, Yale University, New H...
推荐引用方式 GB/T 7714	Zachos J.C.,Röhl U.,Schellenberg S.A.,et al. Paleoclimate: Rapid acidification of the ocean during the paleocene-eocene thermal maximum[J],2005,308(5728).
APA	Zachos J.C..,Röhl U..,Schellenberg S.A..,Sluijs A..,Hodell D.A..,...&Kroon D..(2005).Paleoclimate: Rapid acidification of the ocean during the paleocene-eocene thermal maximum.Science,308(5728).
MLA	Zachos J.C.,et al."Paleoclimate: Rapid acidification of the ocean during the paleocene-eocene thermal maximum".Science 308.5728(2005).