Continuity of the Alpine slab unraveled by high-resolution P wave tomography

doi:10.1002/2016JB013310

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Continuity of the Alpine slab unraveled by high-resolution P wave tomography
	Zhao, Liang 1,2; Paul, Anne 3; Malusa, Marco G.4; Xu, Xiaobing 1; Zheng, Tianyu 1; Solarino, Stefano 5; Guillot, Stephane 3; Schwartz, Stephane 3; Dumont, Thierry 3; Salimbeni, Simone 6
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
	2016-12-01
卷号	121 期号:12 页码:8720-8737
ISSN号	2169-9313
DOI	10.1002/2016JB013310
文献子类	Article
英文摘要	The question of lateral and/or vertical continuity of subducted slabs in active orogens is a hot topic partly due to poorly resolved tomographic data. The complex slab structure beneath the Alpine region is only partly resolved by available geophysical data, leaving many geological and geodynamical issues widely open. Based upon a finite-frequency kernel method, we present a new high-resolution tomography model using P wave data from 527 broadband seismic stations, both from permanent networks and temporary experiments. This model provides an improved image of the slab structure in the Alpine region and fundamental pinpoints for the analysis of Cenozoic magmatism, (U) HP metamorphism, and Alpine topography. Our results document the lateral continuity of the European slab from the Western Alps to the central Alps, and the downdip slab continuity beneath the central Alps, ruling out the hypothesis of slab break off to explain Cenozoic Alpine magmatism. A low-velocity anomaly is observed in the upper mantle beneath the core of the Western Alps, pointing to dynamic topography effects. A NE dipping Adriatic slab, consistent with Dinaric subduction, is possibly observed beneath the Eastern Alps, whereas the laterally continuous Adriatic slab of the Northern Apennines shows major gaps at the boundary with the Southern Apennines and becomes near vertical in the Alps-Apennines transition zone. Tear faults accommodating opposite-dipping subductions during Alpine convergence may represent reactivated lithospheric faults inherited from Tethyan extension. Our results suggest that the interpretations of previous tomography results that include successive slab break offs along the Alpine-Zagros-Himalaya orogenic belt might be proficiently reconsidered.
WOS关键词	TRAVEL-TIME TOMOGRAPHY ; WESTERN ALPS ; TELESEISMIC TOMOGRAPHY ; FRECHET KERNELS ; TECTONIC RECONSTRUCTIONS ; ANISOTROPY BENEATH ; SEISMIC TOMOGRAPHY ; VELOCITY STRUCTURE ; PLATE BOUNDARY ; LEAST-SQUARES
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000393181500018
资助机构	State Key Laboratory of Lithospheric Evolution, China ; State Key Laboratory of Lithospheric Evolution, China ; National Natural Science Foundation of China(41625016) ; National Natural Science Foundation of China(41625016) ; Youth Innovation Promotion Association CAS(2012055) ; Youth Innovation Promotion Association CAS(2012055) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56) ; State Key Laboratory of Lithospheric Evolution, China ; State Key Laboratory of Lithospheric Evolution, China ; National Natural Science Foundation of China(41625016) ; National Natural Science Foundation of China(41625016) ; Youth Innovation Promotion Association CAS(2012055) ; Youth Innovation Promotion Association CAS(2012055) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56) ; State Key Laboratory of Lithospheric Evolution, China ; State Key Laboratory of Lithospheric Evolution, China ; National Natural Science Foundation of China(41625016) ; National Natural Science Foundation of China(41625016) ; Youth Innovation Promotion Association CAS(2012055) ; Youth Innovation Promotion Association CAS(2012055) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56) ; State Key Laboratory of Lithospheric Evolution, China ; State Key Laboratory of Lithospheric Evolution, China ; National Natural Science Foundation of China(41625016) ; National Natural Science Foundation of China(41625016) ; Youth Innovation Promotion Association CAS(2012055) ; Youth Innovation Promotion Association CAS(2012055) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56) ; Labex OSUG (Investissements d'avenir, France)(ANR10 LABX56)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53127]
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	Zhao, Liang; Malusa, Marco G.
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 3.Univ Grenoble Alpes, CNRS, ISTerre, Grenoble, France 4.Univ Milano Bicocca, Dept Earth & Environm Sci, Milan, Italy 5.CNT, Ist Nazl Geofis & Vulcanol, Genoa, Italy 6.Ist Nazl Geofis & Vulcanol, Bologna, Italy
推荐引用方式 GB/T 7714	Zhao, Liang,Paul, Anne,Malusa, Marco G.,et al. Continuity of the Alpine slab unraveled by high-resolution P wave tomography[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2016,121(12):8720-8737.
APA	Zhao, Liang.,Paul, Anne.,Malusa, Marco G..,Xu, Xiaobing.,Zheng, Tianyu.,...&Zhu, Rixiang.(2016).Continuity of the Alpine slab unraveled by high-resolution P wave tomography.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,121(12),8720-8737.
MLA	Zhao, Liang,et al."Continuity of the Alpine slab unraveled by high-resolution P wave tomography".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 121.12(2016):8720-8737.