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DOI | 10.1002/2017GL074959 |
Rapid Cenozoic Subsidence in the Gulf of Mexico Resulting From Hess Rise Conjugate Subduction | |
Wang, Huilin1; Gurnis, Michael1; Skogseid, Jakob2 | |
2017-11-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Norway |
英文摘要 | Enigmatic surface deflections occurred in North America starting from the Cretaceous, including the continental-scale drainage reorganization and the long-wavelength subsidence in the Western Interior Seaway. These surface undulations cannot be simply explained by sea level change or flexure loading. Coinciding with the large-scale surface deflection, the Gulf of Mexico (GOM) has an immense Paleocene sediment deposition probably caused by tectonic subsidence. Increasing evidence indicates a distinct seismic anomaly localized in the mantle below the GOM. With geodynamic models, we show that the Hess Rise conjugate coincides with the position of the seismic anomaly. The basalt-eclogite transition in the Hess conjugate can lead to a localized dynamic subsidence in the GOM, which is superimposed on the broad surface deflection caused by the Farallon slab. The Hess conjugate, transformed to eclogite, could tilt the surface southward in the U.S. and help frame the GOM as a main depocenter in the Cenozoic. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418572900023 |
WOS关键词 | LARAMIDE OROGENY ; OCEANIC PLATEAU ; CONTINENTAL SUBSIDENCE ; VERTICAL MOTION ; NORTH-AMERICA ; PACIFIC-OCEAN ; MANTLE ; EVOLUTION ; BASIN ; TOPOGRAPHY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26885 |
专题 | 气候变化 |
作者单位 | 1.CALTECH, Seismol Lab, Pasadena, CA 91125 USA; 2.Statoil ASA, Fornebu, Norway |
推荐引用方式 GB/T 7714 | Wang, Huilin,Gurnis, Michael,Skogseid, Jakob. Rapid Cenozoic Subsidence in the Gulf of Mexico Resulting From Hess Rise Conjugate Subduction[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(21). |
APA | Wang, Huilin,Gurnis, Michael,&Skogseid, Jakob.(2017).Rapid Cenozoic Subsidence in the Gulf of Mexico Resulting From Hess Rise Conjugate Subduction.GEOPHYSICAL RESEARCH LETTERS,44(21). |
MLA | Wang, Huilin,et al."Rapid Cenozoic Subsidence in the Gulf of Mexico Resulting From Hess Rise Conjugate Subduction".GEOPHYSICAL RESEARCH LETTERS 44.21(2017). |
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