DOI: 10.1016/j.epsl.2018.07.023
Scopus记录号: 2-s2.0-85050607854
论文题名: Seismic stratigraphy of Cretaceous eastern Central Atlantic Ocean: Basin evolution and palaeoceanographic implications
作者: Mourlot Y. ; Calvès G. ; Clift P.D. ; Baby G. ; Chaboureau A.-C. ; Raisson F.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 499 起始页码: 107
结束页码: 121
语种: 英语
英文关键词: Central Atlantic Ocean
; contourite
; Cretaceous
; palaeobathymetry
; palaeoceanography
; seismic reflection
Scopus关键词: Sedimentology
; Seismology
; Stratigraphy
; Central Atlantic Ocean
; Contourite
; Cretaceous
; Palaeo-bathymetry
; Palaeoceanography
; Seismic reflections
; Oceanography
; basin evolution
; bathymetry
; contourite
; Cretaceous
; paleoceanography
; seismic reflection
; seismic stratigraphy
; Atlantic Ocean
; Atlantic Ocean (Central)
英文摘要: The evolution and resulting morphology of a Cretaceous contourite drift in the eastern Central Atlantic oceanic basin is investigated in unprecedented detail using seismic imaging and age-calibrated cross-margin sections. The margin, from the shelf, slope to deep-water and abyssal plain is constructed by a succession of erosive and depositional mounded structures that relate to bottom-water currents and sediment winnowing. The regional mapping of these drifts, sediment waves and gravitational sedimentary systems allows us to test the Upper Cretaceous paleocirculation model. Combined with flexural backstripping of the regional cross section, it reveals the water-depth range at which the observed sedimentary features occur. A possible late Albian to Turonian contourite drift system is observed from Guinea to Mauritania. The development of a shallow to deep oceanic circulation system is a key element in the rock record, with implications for the palaeoceanography and layering of the Cretaceous ocean. The Cretaceous geological interval and oceanic model mirrors the stratification of the modern ocean and the morphology of its seafloor from offshore Morocco to Guinea. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109716
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
There are no files associated with this item.
作者单位: Université Toulouse 3, GET–OMP, 14 Avenue Edouard Belin, Toulouse, 31400, France; Department of Geology and Geophysics and Coastal Studies Institute, Louisiana State University, E235 Howe-Russell, Baton Rouge, LA 70803, United States; CVA, 7 chemin de la Marouette, Bayonne, 64100, France; Total E&P, CSTJF, Avenue Larribau, Pau Cedex, F-64018, France
Recommended Citation:
Mourlot Y.,Calvès G.,Clift P.D.,et al. Seismic stratigraphy of Cretaceous eastern Central Atlantic Ocean: Basin evolution and palaeoceanographic implications[J]. Earth and Planetary Science Letters,2018-01-01,499