气候变化领域集成服务门户(CCPortal): Arc-continent collisions in the tropics set Earth's climate state

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DOI	10.1126/science.aav5300
	Arc-continent collisions in the tropics set Earth's climate state
	Macdonald F.A.; Swanson-Hysell N.L.; Park Y.; Lisiecki L.; Jagoutz O.
发表日期	2019
ISSN	0036-8075
起始页码	181
结束页码	184
卷号	364 期号:6436
英文摘要	On multimillion-year time scales, Earth has experienced warm ice-free and cold glacial climates, but it is unknown whether transitions between these background climate states were the result of changes in carbon dioxide sources or sinks. Low-latitude arc-continent collisions are hypothesized to drive cooling by exhuming and eroding mafic and ultramafic rocks in the warm, wet tropics, thereby increasing Earth's potential to sequester carbon through chemical weathering. To better constrain global weatherability through time, the paleogeographic position of all major Phanerozoic arc-continent collisions was reconstructed and compared to the latitudinal distribution of ice sheets. This analysis reveals a strong correlation between the extent of glaciation and arc-continent collisions in the tropics. Earth's climate state is set primarily by global weatherability, which changes with the latitudinal distribution of arc-continent collisions. © 2017 The Authors.
英文关键词	carbon dioxide; chemical weathering; cooling; correlation; glaciation; ice sheet; latitudinal gradient; paleogeography; Phanerozoic; supercooling; article; glaciation; tropics
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/244606
作者单位	Department of Earth Science, University of California, Santa Barbara, CA 93106, United States; Department of Earth and Planetary Science, University of California, Berkeley, CA 94720, United States; Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
推荐引用方式 GB/T 7714	Macdonald F.A.,Swanson-Hysell N.L.,Park Y.,et al. Arc-continent collisions in the tropics set Earth's climate state[J],2019,364(6436).
APA	Macdonald F.A.,Swanson-Hysell N.L.,Park Y.,Lisiecki L.,&Jagoutz O..(2019).Arc-continent collisions in the tropics set Earth's climate state.Science,364(6436).
MLA	Macdonald F.A.,et al."Arc-continent collisions in the tropics set Earth's climate state".Science 364.6436(2019).