IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Slab Morphology Beneath Northern Sumatra Revealed by Regional and Teleseismic Traveltime Tomography
LiU, Shaolin1,2,3,4; Suardi, Iman5; Zheng, Ming6; Yang, Dinghui3; Huang, Xueyuan2; Tong, Ping1,2,7
2019-10-30
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN2169-9313
Pages21
AbstractAn eikonal equation-based tomography method is used to invert the high-quality regional and teleseismic traveltime data recorded by 26 broadband seismic stations in northern Sumatra, following which we obtain the P and S wave velocity structures of the crust and mantle down to a depth of 800 km. The results of both P and S wave tomography clearly show that the Indo-Australian oceanic plate continuously penetrates downward beneath northern Sumatra and the maximum penetration depth varies approximately from 400 km at the northern tip of Sumatra to about 800 km around the southern boundary of our study area. Significant slab folding or bending reported in the literature as the main feature of the subducted slab beneath northern Sumatra is not found in our results. Instead, our tomographic images demonstrate only a less curved slab that mimics the shape of the Sunda Trench and volcanic arc and generally extends over depths from 120 to 450 km. P wave tomography shows broad and pronounced low-velocity anomalies beneath the island of Sumatra in the lower crust and uppermost mantle. Our model also reveals a slab tear approximately at 120-km depth, which has been documented in previous studies and considered to be related to the eruption of the Toba supervolcano.
Keywordslab subduction tomography Toba Caldera northern Sumatra
DOI10.1029/2019JB017625
Funding OrganizationNational Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; National Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; National Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; National Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution
WOS KeywordVELOCITY STRUCTURE BENEATH ; SEISMIC TOMOGRAPHY ; NIAS-ISLAND ; MANTLE ; EVOLUTION ; ASIA ; EQUATION ; ZONE ; RECONSTRUCTIONS ; CONSTRAINTS
Language英语
Funding ProjectNational Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative[M4430287.B50] ; MOE AcRF Tier-1 Grant[M4011899.110] ; National Natural Science Foundation of China[U1839206] ; National Natural Science Foundation of China[41604034] ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution[SKL-K201804]
Funding OrganizationNational Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; National Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; National Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; National Research Foundation ; National Research Foundation ; National Research Foundation ; National Research Foundation ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; Ministry of Education (MOE), Singapore, under the Research Centres of Excellence Initiative ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; MOE AcRF Tier-1 Grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; International Postdoctoral Exchange Fellowship Program ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution ; Open Fund Project of the State Key Laboratory of Lithospheric Evolution
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000493194900001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95717
Collection岩石圈演化国家重点实验室
Corresponding AuthorTong, Ping
Affiliation1.Nanyang Technol Univ, Sch Phys & Math Sci, Div Math Sci, Singapore, Singapore
2.Nanyang Technol Univ, Earth Observ Singapore, Singapore, Singapore
3.Tsinghua Univ, Dept Math Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
5.State Coll Meteorol Climatol & Geophys STMKG, South Tangerang, Indonesia
6.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing, Peoples R China
7.Nanyang Technol Univ, Asian Sch Environm, Singapore, Singapore
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
LiU, Shaolin,Suardi, Iman,Zheng, Ming,et al. Slab Morphology Beneath Northern Sumatra Revealed by Regional and Teleseismic Traveltime Tomography[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019:21.
APA LiU, Shaolin,Suardi, Iman,Zheng, Ming,Yang, Dinghui,Huang, Xueyuan,&Tong, Ping.(2019).Slab Morphology Beneath Northern Sumatra Revealed by Regional and Teleseismic Traveltime Tomography.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,21.
MLA LiU, Shaolin,et al."Slab Morphology Beneath Northern Sumatra Revealed by Regional and Teleseismic Traveltime Tomography".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH (2019):21.
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