IGGCAS OpenIR  > 地球与行星物理院重点实验室
Topography of mantle transition zone discontinuities beneath Northeast China imaged by receiver function with Ps scattering kernel
Yang Fan1,2; Zhang Han3; Li Juan1,2,4; Wang Xin1,2,4; Chen QiFu1,2,4
2021-12-01
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume64Issue:12Pages:4406-4424
AbstractMantle transition zone connects Earth's upper and lower mantle and holds key information on the compositional and thermal states at depths. The depth variation, i.e. topography, of mantle transition zone discontinuities implies regional changes of temperature and/or composition because of their well-established relationship to the solid phase transitions between high-pressure polymorphs of olivine. Based on the teleseismic receiver functions collected from densely deployed permanent network and two temporary arrays in Northeast China, we imaged the transition zone structures using Ps scattering kernel. The results show clear boundaries of the Northwest Pacific slab at the transition zone depth, with a dip angle of about 30 degrees. We observed 20 similar to 40 km depression of the 660-km discontinuity near where prior tomographic studies suggested subducted slab. Such depression may be explained by the lower mantle temperature caused by the cold Pacific plate. Beneath the northwest of Changbaishan and Longgang Volcano, the 660-km discontinuity is elevated by 5 similar to 15 km, indicating high temperature anomalies that may come from upwelling. In contrast, the topography of the 410-km discontinuity reveals a widely spreading 10 km depression in most areas, and it shows obvious regional lateral variation. Such large-scale depression suggests that compositional changes introduced from subduction, such as basalt fraction and water content, also play a role in controlling the 410-km discontinuity topography. The high-resolution three-dimensional topography of the mantle transition zone obtained in this study will motivate further investigations on understanding the transformation of mantle material distribution and energy exchange by subduction plates in Northeast Asia.
KeywordMantle transition zone Receiver function Ps scattering kernel migration Northeast China Subducted slab Changbaishan volcano
DOI10.6038/cjg2021P0213
WOS KeywordCRUSTAL STRUCTURE ; SLAB ; WATER ; OLIVINE ; SYSTEM ; TEMPERATURES ; INVERSION ; EARTH ; 410KM ; WAVES
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000751863800014
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104922
Collection地球与行星物理院重点实验室
Corresponding AuthorLi Juan
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA
4.Chinese Acad Sci, Inst Geol & Geophys, Heilongjiang Mohe Observ Geophys, Beijing 100029, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yang Fan,Zhang Han,Li Juan,et al. Topography of mantle transition zone discontinuities beneath Northeast China imaged by receiver function with Ps scattering kernel[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2021,64(12):4406-4424.
APA Yang Fan,Zhang Han,Li Juan,Wang Xin,&Chen QiFu.(2021).Topography of mantle transition zone discontinuities beneath Northeast China imaged by receiver function with Ps scattering kernel.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,64(12),4406-4424.
MLA Yang Fan,et al."Topography of mantle transition zone discontinuities beneath Northeast China imaged by receiver function with Ps scattering kernel".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 64.12(2021):4406-4424.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yang Fan]'s Articles
[Zhang Han]'s Articles
[Li Juan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang Fan]'s Articles
[Zhang Han]'s Articles
[Li Juan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang Fan]'s Articles
[Zhang Han]'s Articles
[Li Juan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.