DOI: 10.1007/s00531-014-1091-9
Scopus记录号: 2-s2.0-84925517594
论文题名: Extensional salt tectonics in the partially inverted Cotiella post-rift basin (south-central Pyrenees): structure and evolution
作者: López-Mir B. ; Muñoz J.A. ; García-Senz J.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 104, 期: 2 起始页码: 419
结束页码: 434
语种: 英语
英文关键词: Cotiella basin
; Extensional diapirs
; Passive margins
; Post-rift basin
; Pyrenees
; Salt tectonics
英文摘要: The Cotiella Massif in the south-central Pyrenees hosts upper Cretaceous gravity-driven extensional faults which were developed in the Bay of Biscay–Pyrenean paleorift margin of the Atlantic Ocean. They accommodate up to 6 km of post-rift carbonates above relict upper Triassic salt. Subsequent Pyrenean contractional deformation preserved the main extensional features, but most of the upper Triassic salt was expulsed and then dissolved, leaving little indications of the original salt volume. Nonetheless, several distinctive salt-related features are still recognizable both at outcrop and at basin scale, providing an exposed analogue for salt-floored extensional basins developed on passive margins. Based on field research, we re-interpret the tectonic evolution of the area and suggest that passive diapirs were coeval with gravity-driven extension during the development of the Cotiella basin. The given interpretations are supported with detailed geological maps, original structural data, cross sections and outcrop photographs. The discovery of previously unknown post-rift salt structures in the Cotiella Massif is an extra element to consider in the paleogeographic reconstructions of the upper Cretaceous passive margin of the Bay of Biscay–Pyrenean realm and consequently helps in our understanding of the evolution of current Atlantic-type margins. © 2014, Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925517594&doi=10.1007%2fs00531-014-1091-9&partnerID=40&md5=9e5c73473797f3dd9d504622ef6fe914
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70405
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: CASP, West Building, 181A Huntingdon Road, Cambridge, United Kingdom; Departament de Geodinàmica i Geofísica, Facultat de Geologia, Institut Geomodels, Universitat de Barcelona, C/Martí i Franquès s/n, Zona universitària de Pedralbes, Barcelona, Spain; Instituto Geológico y Minero de España (IGME), La Calera 1, Tres Cantos, Madrid, Spain
Recommended Citation:
López-Mir B.,Muñoz J.A.,García-Senz J.. Extensional salt tectonics in the partially inverted Cotiella post-rift basin (south-central Pyrenees): structure and evolution[J]. International Journal of Earth Sciences,2014-01-01,104(2)