气候变化领域集成服务门户(CCPortal): Role of dynamic topography in sustaining the Nile River over 30 million years

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DOI	10.1038/s41561-019-0472-x
	Role of dynamic topography in sustaining the Nile River over 30 million years
	Faccenna C.; Glišović P.; Forte A.; Becker T.W.; Garzanti E.; Sembroni A.; Gvirtzman Z.
发表日期	2019
ISSN	17520894
卷号	12 期号:12
英文摘要	The Nile is the longest river on Earth and has persisted for millions of years. It has been suggested that the Nile in its present path is ~6 million years old, whereas others argue that it may have formed much earlier in geological history. Here we present geological evidence and geodynamic model results that suggest that the Nile drainage has been stable for ~30 million years. We suggest that the Nile’s longevity in essentially the same path is sustained by the persistence of a stable topographic gradient, which in turn is controlled by deeper mantle processes. We propose that a large mantle convection cell beneath the Nile region has controlled topography over the last 30 million years, inducing uplift in the Ethiopian–Yemen Dome and subsidence in the Levant Sea and northern Egypt. We conclude that the drainage system of large rivers and their evolution over time can be sustained by a dynamic topographic gradient. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	dome; drainage network; geodynamics; mantle convection; persistence; subsidence; topography; Levant; Mediterranean Region; Nile River; Yemen
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124554
作者单位	Laboratory of Experimental Tectonics, Department of Sciences, Roma Tre University, Rome, Italy; Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, United States; Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, United States; Geotop, Université du Québec à Montréal, Montréal, QC, Canada; Department of Geological Sciences, University of Florida, Gainesville, FL, United States; Department of Earth and Environmental Sciences, Università di Milano-Bicocca Milano, Milan, Italy; Geological Survey of Israel, Jerusalem, Israel; The Hebrew University of Jerusalem, Jerusalem, Israel
推荐引用方式 GB/T 7714	Faccenna C.,Glišović P.,Forte A.,et al. Role of dynamic topography in sustaining the Nile River over 30 million years[J],2019,12(12).
APA	Faccenna C..,Glišović P..,Forte A..,Becker T.W..,Garzanti E..,...&Gvirtzman Z..(2019).Role of dynamic topography in sustaining the Nile River over 30 million years.Nature Geoscience,12(12).
MLA	Faccenna C.,et al."Role of dynamic topography in sustaining the Nile River over 30 million years".Nature Geoscience 12.12(2019).