IGGCAS OpenIR  > 地球与行星物理院重点实验室
Seismic, thermal and compositional structures of the stagnant slab in the mantle transition zone beneath southeastern China
Wang, Yi1,2; He, Yumei3,4,5; Lu, Gang5,6; Wen, Lianxing7
2020-01-20
Source PublicationTECTONOPHYSICS
ISSN0040-1951
Volume775Pages:11
AbstractThe structure of Earth's mantle transition zone (MTZ) contains important information about how oceanic plates are recycled into the mantle. However, morphologies of stagnant slab in the MTZ inferred from seismic studies remain controversial. Here, we conduct combined geodynamic, mineral physical and seismologic modeling to infer fine features of the stagnant slab in the MTZ beneath southeastern China. This method applies mineral physics modeling in combination with geodynamically consistent thermal anomalies to predict seismic velocity structures in the MTZ that are used in triplication waveform modeling. The synthetic waveforms are systematically compared with observed data using a grid search optimization. Our best-fit model reveals a stagnant slab lying at the bottom of the MTZ with a peak temperature reduction of 350 +/- 80 K and a thickness of 85 +/- 20 km, indicating that it underwent little deformation. By joint modeling of the mineral physics and thermal history of the slab, our approach improves estimates of both the thickness and temperature of the stagnant slab and provides a better understanding of the paleo subduction system beneath southeastern China.
KeywordMantle transition zone Stagnant slab Triplication waveform modeling Mineralogical modeling Thermal structure
DOI10.1016/j.tecto.2019.228208
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordPHASE-TRANSFORMATIONS ; TECTONIC EVOLUTION ; SUBDUCTION ZONE ; SH-VELOCITY ; DISCONTINUITY ; LITHOSPHERE ; SHARPNESS ; DYNAMICS ; MODELS ; ASIA
Language英语
Funding ProjectNational Natural Science Foundation of China[XDB18010302] ; National Natural Science Foundation of China[41490612] ; National Natural Science Foundation of China[41590621] ; National Natural Science Foundation of China[41374054] ; National Natural Science Foundation of China[41774112]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000515211300001
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95608
Collection地球与行星物理院重点实验室
岩石圈演化国家重点实验室
Corresponding AuthorHe, Yumei
Affiliation1.Univ Sci & Technol China, Sch Earth & Space Sci, Lab Seismol & Phys Earths Interior, Hefei 230026, Anhui, Peoples R China
2.Natl Geophys Observ Mengcheng, Mengcheng 233500, Anhui, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 10029, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
7.SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Yi,He, Yumei,Lu, Gang,et al. Seismic, thermal and compositional structures of the stagnant slab in the mantle transition zone beneath southeastern China[J]. TECTONOPHYSICS,2020,775:11.
APA Wang, Yi,He, Yumei,Lu, Gang,&Wen, Lianxing.(2020).Seismic, thermal and compositional structures of the stagnant slab in the mantle transition zone beneath southeastern China.TECTONOPHYSICS,775,11.
MLA Wang, Yi,et al."Seismic, thermal and compositional structures of the stagnant slab in the mantle transition zone beneath southeastern China".TECTONOPHYSICS 775(2020):11.
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