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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
Along-strike variations in the fossil subduction zone of the Western Alps revealed by the CIFALPS seismic experiments and their implications for exhumation of (ultra-) high-pressure rocks

文献类型：期刊论文

作者Paul, Anne3; Malusa, Marco G.5; Solarino, Stefano2; Salimbeni, Simone4; Eva, Elena2; Nouibat, Ahmed3; Pondrelli, Silvia4; Aubert, Coralie3; Dumont, Thierry3; Guillot, Stephane3
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2022-11-15
卷号598页码:12
关键词seismic tomography continental subduction exhumation Western Alps
ISSN号0012-821X
DOI10.1016/j.epsl.2022.117843
英文摘要In complex plate-boundary settings, a reliable 3-D geophysical characterization of the deep tectonic structure is a fundamental starting point for a breakthrough in the analysis of processes controlling plate subduction and (U)HP rock exhumation. The Western Alps host one of the best-studied fossil subduction zones worldwide, with a well-defined deep structure in 2-D based on recent geophysical experiments. However, a full 3-D characterization of its deep tectonic structure is still lacking. Here we present a series of new receiver function cross-sections across the northern and southern Western Alps, validated and complemented by a S-wave velocity model from ambient-noise tomography that provides additional constraints between the profiles. We document a marked change in Moho attitude from the northern Western Alps, where the eastward-dipping European Moho reaches -45 km depth beneath the Gran Paradiso dome, to the southern Western Alps, where the European Moho reaches -70 km depth beneath the equivalent Dora-Maira dome. This change in Moho attitude takes place over a few tens of kilometers and was likely emphasized by deformation of the slab during subduction. The Western Alps subduction wedge is much thicker in the south than in the north, and the mantle-wedge rocks are deeply involved in orogeny exclusively in the south, where coesite is found in continental (U)HP rocks at several locations. Our detailed information on the 3-D structure of the subduction wedge provides first-order constraints for the next-generation of thermo-mechanical numerical models and may help explain the lateral variations in exhumation style revealed by the geologic record.(c) 2022 Elsevier B.V. All rights reserved.
WOS关键词CONTINENTAL SUBDUCTION ; MANTLE ; RECONSTRUCTIONS ; TOMOGRAPHY ; RECORD ; MODEL ; WAVES
资助项目National Natural Science Foun-dation of China ; Agence Nationale de la Recherche (France) ; LabEx OSUG@2020 ; [41625016] ; [41888101] ; [91955210] ; [ANR-15-CE31-0015] ; [ANR-10-LABX-56]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000878180900003
出版者ELSEVIER
资助机构National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; Agence Nationale de la Recherche (France) ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020 ; LabEx OSUG@2020
源URL[http://ir.iggcas.ac.cn/handle/132A11/107699]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Paul, Anne; Malusa, Marco G.; Zhao, Liang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Ist Nazl Geofis & Vulcanol, ONT, Genoa, Italy
3.Univ Grenoble Alpes, Univ Savoie Mt Blanc, UGE, CNRS,ISTerre,IRD, Grenoble, France
4.Ist Nazl Geofis & Vulcanol, Bologna, Italy
5.Univ Milano Bicocca, Dept Earth & Environm Sci, Piazza Sci 4, I-20126 Milan, Italy
推荐引用方式
GB/T 7714		 Paul, Anne,Malusa, Marco G.,Solarino, Stefano,et al. Along-strike variations in the fossil subduction zone of the Western Alps revealed by the CIFALPS seismic experiments and their implications for exhumation of (ultra-) high-pressure rocks[J]. EARTH AND PLANETARY SCIENCE LETTERS,2022,598:12.
APA Paul, Anne.,Malusa, Marco G..,Solarino, Stefano.,Salimbeni, Simone.,Eva, Elena.,...&Zhao, Liang.(2022).Along-strike variations in the fossil subduction zone of the Western Alps revealed by the CIFALPS seismic experiments and their implications for exhumation of (ultra-) high-pressure rocks.EARTH AND PLANETARY SCIENCE LETTERS,598,12.
MLA Paul, Anne,et al."Along-strike variations in the fossil subduction zone of the Western Alps revealed by the CIFALPS seismic experiments and their implications for exhumation of (ultra-) high-pressure rocks".EARTH AND PLANETARY SCIENCE LETTERS 598(2022):12.

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来源：地质与地球物理研究所

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