DOI: 10.1007/s00531-012-0787-y
Scopus记录号: 2-s2.0-84908570252
论文题名: Moho structure of Central America based on three-dimensional lithospheric density modelling of satellite-derived gravity data
作者: Lücke O.H.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期: 7 起始页码: 1733
结束页码: 1745
语种: 英语
英文关键词: Density model
; Gravity
; Moho
; Satellite
Scopus关键词: Caribbean plate
; Cocos plate
; continental shelf
; gravity survey
; lithospheric structure
; Moho
; Nazca plate
; neotectonics
; satellite data
; three-dimensional modeling
; Guatemala [Central America]
英文摘要: The Central American isthmus hosts a highly variable Moho structure due to the diverse origin and composition of the crustal basement and the influence of large-scale neotectonic processes. Gravity data from the combined geopotential model EGM2008 were interpreted via forward modelling to outline the three-dimensional lithospheric density structure along the Middle American Trench, as well as the segmentation of the oceanic Cocos and Nazca plates and the overriding Caribbean plate. In this work, results for the depth of the Moho obtained from the density model are presented. The Quaternary volcanic arc correlates with a maximum Moho depth of 44 km in western Guatemala. To the south-east of the continental shelf, the Caribbean plate shows Moho depths between 20 and 12 km whereas to the north, values as shallow as 8 km are observed at the Cayman trough. For the oceanic Cocos plate, depths between 16 and 21 km are obtained for the Moho along the Cocos ridge, contrasting with values between 15 and 12 km for the seamount segment and 8 and 11 km for the segments of the crust that are not affected by the Galapagos hot-spot track. © 2012, Springer-Verlag. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908570252&doi=10.1007%2fs00531-012-0787-y&partnerID=40&md5=5372af3e774d487d6f3db294095a3e6b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70345
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Abt. Geophysik, Institut für Geowissenschaften, Christian-Albrechts-Universität, Otto-Hahn-Platz 1, Kiel, Germany
Recommended Citation:
Lücke O.H.. Moho structure of Central America based on three-dimensional lithospheric density modelling of satellite-derived gravity data[J]. International Journal of Earth Sciences,2014-01-01,103(7)