| DOI: | 10.1002/2015GL065195
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| 论文题名: | Flat slab deformation caused by interplate suction force |
| 作者: | Ma Y.; Clayton R.W.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9152
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| EISSN: | 1944-8883
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| 出版年: | 2015
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| 卷: | 42, 期:17 | | 起始页码: | 7064
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| 结束页码: | 7072
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| 语种: | 英语
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| 英文关键词: | Central Andes
; flat subduction
; receiver function
; surface wave
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| Scopus关键词: | Tectonics
; Central Andes
; Eastern Cordillera
; Flat slabs
; Flat subductions
; High velocity
; Mantle wedge
; Receiver functions
; Suction force
; Surface waves
; deformation
; dehydration
; mantle
; Moho
; slab
; subduction
; suction
; surface wave
; topography
; Andes
; Cordillera
; Ica
; Nazca
; Paraguay
; Peru
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| 英文摘要: | We image the structure at the southern end of the Peruvian flat subduction zone, using receiver function and surface wave methods. The Nazca slab subducts to ∼100 km depth and then remains flat for ∼300 km distance before it resumes the dipping subduction. The flat slab closely follows the topography of the continental Moho above, indicating a strong suction force between the slab and the overriding plate. A high-velocity mantle wedge exists above the initial half of the flat slab, and the velocity resumes to normal values before the slab steepens again, indicating the resumption of dehydration and ecologitization. Two prominent midcrust structures are revealed in the 70 km thick crust under the Central Andes: molten rocks beneath the Western Cordillera and the underthrusting Brazilian Shield beneath the Eastern Cordillera. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943354704&doi=10.1002%2f2015GL065195&partnerID=40&md5=c5df705ab1e5984c4358b0f653eeaf09
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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/8768
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Seismological Laboratory, California Institute of Technology, Pasadena, CA, United States
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| Recommended Citation: | |
Ma Y.,Clayton R.W.. Flat slab deformation caused by interplate suction force[J]. Geophysical Research Letters,2015-01-01,42(17).
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