The growth of northeastern Tibet and its relevance to large‐scale continental geodynamics: A review of recent studies
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- Dao‐Yang Yuan
- Lanzhou Institute of Seismology China Earthquake Administration Lanzhou China
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- Wei‐Peng Ge
- Lanzhou Institute of Seismology China Earthquake Administration Lanzhou China
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- Zhen‐Wei Chen
- State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China
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- Chuan‐You Li
- State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China
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- Zhi‐Cai Wang
- State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China
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- Hui‐Ping Zhang
- State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China
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- Pei‐Zhen Zhang
- State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China
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- De‐Wen Zheng
- State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China
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- Wen‐Jun Zheng
- State Key Laboratory of Earthquake Dynamics Institute of Geology, China Earthquake Administration Beijing China
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- William H. Craddock
- Department of Geosciences Pennsylvania State University University Park Pennsylvania USA
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- Katherine E. Dayem
- Ecova Durango Colorado USA
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- Alison R. Duvall
- Department of Earth and Environmental Sciences University of Michigan Ann Arbor Michigan USA
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- Brian G. Hough
- Department of Earth and Environmental Sciences University of Rochester Rochester New York USA
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- Richard O. Lease
- Department of Earth Science University of California Santa Barbara California USA
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- Jean‐Daniel Champagnac
- Earth Surface Dynamics, Geological Institute Swiss Federal Institute of Technology Zurich Switzerland
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- Douglas W. Burbank
- Department of Earth Science University of California Santa Barbara California USA
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- Marin K. Clark
- Department of Earth and Environmental Sciences University of Michigan Ann Arbor Michigan USA
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- Kenneth A. Farley
- Division of Geological and Planetary Sciences California Institute of Technology Pasadena California USA
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- Carmala N. Garzione
- Department of Earth and Environmental Sciences University of Rochester Rochester New York USA
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- Eric Kirby
- Department of Geosciences Pennsylvania State University University Park Pennsylvania USA
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- Peter Molnar
- Now at the College of Earth, Ocean, and Atmospheric Sciences Oregon State University Corvallis Oregon USA
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- Gerard H. Roe
- Department of Earth and Space Sciences University of Washington Seattle Washington USA
書誌事項
- 公開日
- 2013-09
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/tect.20081
- 公開者
- American Geophysical Union (AGU)
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説明
<jats:title>Abstract</jats:title><jats:p>Recent studies of the northeastern part of the Tibetan Plateau have called attention to two emerging views of how the Tibetan Plateau has grown. First, deformation in northern Tibet began essentially at the time of collision with India, not 10–20 Myr later as might be expected if the locus of activity migrated northward as India penetrated the rest of Eurasia. Thus, the north‐south dimensions of the Tibetan Plateau were set mainly by differences in lithospheric strength, with strong lithosphere beneath India and the Tarim and Qaidam basins steadily encroaching on one another as the region between them, the present‐day Tibetan Plateau, deformed, and its north‐south dimension became narrower. Second, abundant evidence calls for acceleration of deformation, including the formation of new faults, in northeastern Tibet since ~15 Ma and a less precisely dated change in orientation of crustal shortening since ~20 Ma. This reorientation of crustal shortening and roughly concurrent outward growth of high terrain, which swings from NNE‐SSW in northern Tibet to more NE‐SW and even ENE‐WSW in the easternmost part of northeastern Tibet, are likely to be, in part, a consequence of crustal thickening within the high Tibetan Plateau reaching a limit, and the locus of continued shortening then migrating to the northeastern and eastern flanks. These changes in rates and orientation also could result from removal of some or all mantle lithosphere and increased gravitational potential energy per unit area and from a weakening of crustal material so that it could flow in response to pressure gradients set by evolving differences in elevation.</jats:p>
収録刊行物
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- Tectonics
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Tectonics 32 (5), 1358-1370, 2013-09
American Geophysical Union (AGU)