globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2021.116798
论文题名:
Long-term evolution of a plume-induced subduction in the Neotethys realm
作者: Rodriguez M.; Arnould M.; Coltice N.; Soret M.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2021
卷: 561
语种: 英语
中文关键词: Indian Ocean ; mantle plume ; Neotethys ; ophiolites ; subduction
英文关键词: 3D modeling ; Combined actions ; Continental margin ; Late cretaceous ; Mantle convection ; Oceanic lithosphere ; Oceanic subduction ; Sequential segmentation ; Spherical models ; Long Term Evolution (LTE) ; continental margin ; Cretaceous ; induced response ; mantle convection ; mantle plume ; oceanic lithosphere ; ophiolite ; quantitative analysis ; subduction ; Tethys ; Arabian Peninsula ; India ; Indian Ocean
英文摘要: The head of a mantle plume can weaken the oceanic lithosphere through the combined action of its buoyancy forces and excess temperature, which eventually induces intra-oceanic subductions. However, the dynamics of plume-induced subductions, their lifetime and their ability to propagate at the scale of an entire ocean remain unknown. Here, we combine a quantitative synthesis of the ophiolitic record of the Neotethys subduction in the Late Cretaceous with 3D spherical modeling of mantle convection self-generating plate-like tectonics to propose that the pre-Deccan plume initiated the Southern Neotethys Subduction. We suggest that this subduction retreated at 5-10 cm yr−1 until it reached the continental margins of Arabia and India. The sequential segmentation of this subduction during its retreat and the diachronous deactivation of the resulting segments drove the Late Cretaceous-Eocene series of plate reorganization events recorded in the Indian Ocean's fabric. © 2021 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165651
Appears in Collections:气候变化与战略

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作者单位: Laboratoire de Géologie, Ecole normale supérieure, PSL research university, CNRS UMR 8538, 24 rue Lhomond, Paris, 75005, France; Centre for Earth Evolution and Dynamics (CEED), Department of Geosciences, University of Oslo, Oslo, Norway; Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, Villeurbanne, France; Institut des Sciences de la Terre d'Orléans (ISTO), UMR 7327, CNRS, BRGM, Université d'Orléans, Orléans, 45071, France

Recommended Citation:
Rodriguez M.,Arnould M.,Coltice N.,et al. Long-term evolution of a plume-induced subduction in the Neotethys realm[J]. Earth and Planetary Science Letters,2021-01-01,561
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