| DOI: | 10.1002/2014GL059595
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| 论文题名: | Statistical cyclicity of the supercontinent cycle |
| 作者: | Rolf T.; Coltice N.; Tackley P.J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10200
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| EISSN: | 1944-9931
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| 出版年: | 2014
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| 卷: | 41, 期:7 | | 起始页码: | 2351
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| 结束页码: | 2358
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| 语种: | 英语
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| 英文关键词: | mantle convection
; numerical modelling
; plate tectonics
; supercontinents
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| Scopus关键词: | Biodiversity
; Numerical models
; Sea level
; Tectonics
; Assembly time
; Chaotic nature
; Continental drift
; First-order
; Mantle convection
; Mantle convection models
; Supercontinents
; Three-dimensional numerical models
; Structural geology
; continental drift
; cyclicity
; heat flow
; mantle convection
; numerical model
; Pangaea
; plate tectonics
; Rodinia
; three-dimensional modeling
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| 英文摘要: | Supercontinents like Pangea impose a first-order control on Earth's evolution as they modulate global heat loss, sea level, climate, and biodiversity. In a traditional view, supercontinents form and break up in a regular, perhaps periodic, manner in a cycle lasting several 100 Myr as reflected in the assembly times of Earth's major continental aggregations: Columbia, Rodinia, and Pangea. However, modern views of the supercontinent cycle propose a more irregular evolution on the basis of an improved understanding of the Precambrian geologic record. Here we use fully dynamic spherical mantle convection models featuring plate-like behavior and continental drift to investigate supercontinent formation and breakup. We further dismiss the concept of regularity but suggest a statistical cyclicity in which the supercontinent cycle may have a characteristic period imposed by mantle and lithosphere properties, but this is hidden in immense fluctuations between different cycles that arise from the chaotic nature of mantle flow. Key Points Three-dimensional numerical models featuring both plate tectonics and supercontinent cycles Modeled supercontinent cycles are not regular but underlie strong fluctuations Average assembly and breakup times are controlled by the strength of plates © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897956656&doi=10.1002%2f2014GL059595&partnerID=40&md5=a7e9a812dd332594b7c72653c40387e5
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7464
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Institute of Geophysics, ETH Zurich, Zurich, Switzerland
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| Recommended Citation: | |
Rolf T.,Coltice N.,Tackley P.J.. Statistical cyclicity of the supercontinent cycle[J]. Geophysical Research Letters,2014-01-01,41(7).
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