Development and application of uppermost mantle Pn tomography
The ray path of Pn waves is concentrated in the limited depth range of the uppermost mantle, which has unique advantages in ray transverse coverage density. Therefore, the Pn phase is the dominant phase for studying the velocity and anisotropic structure of the uppermost mantle. The lateral variatio...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Reviews of Geophysics and Planetary Physics
2023-03-01
|
| Series: | 地球与行星物理论评 |
| Subjects: | |
| Online Access: | https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2022-052 |
| _version_ | 1797859003302150144 |
|---|---|
| author | Yuhui He Yurui Guan Hua Kong Yan Lü |
| author_facet | Yuhui He Yurui Guan Hua Kong Yan Lü |
| author_sort | Yuhui He |
| collection | DOAJ |
| description | The ray path of Pn waves is concentrated in the limited depth range of the uppermost mantle, which has unique advantages in ray transverse coverage density. Therefore, the Pn phase is the dominant phase for studying the velocity and anisotropic structure of the uppermost mantle. The lateral variation of Pn wave velocity reflects the temperature and composition difference of the uppermost mantle, and Pn anisotropy can reflect the movement of the mantle material and deformation characteristics. The high accuracy of Pn wave velocity and anisotropy structure in the uppermost mantle can provide key information about the lithospheric structure, plate movement, and deep thermal material migration process. With development and improvement, Pn tomography has become a mature technology to study the structure of the uppermost mantle and has been applied to obtain structural information such as crustal thickness, upper mantle velocity, and anisotropy on a global scale. This method characterizes the lateral heterogeneity of the global upper mantle structure and provides further understanding of the Earth's internal structure and plate subduction, continental collision deformation, volcanic activities, and other dynamic processes. With increasing global seismic stations and observation data, a large amount of high-quality Pn data provide favorable conditions for the study of the structure of the uppermost mantle. This paper reviews the development of the Pn tomography method and its applications in the world. |
| first_indexed | 2024-04-09T21:23:32Z |
| format | Article |
| id | doaj.art-2caf8918035442e9b52963f83f3c52f6 |
| institution | Directory Open Access Journal |
| issn | 2097-1893 |
| language | zho |
| last_indexed | 2024-04-09T21:23:32Z |
| publishDate | 2023-03-01 |
| publisher | Editorial Office of Reviews of Geophysics and Planetary Physics |
| record_format | Article |
| series | 地球与行星物理论评 |
| spelling | doaj.art-2caf8918035442e9b52963f83f3c52f62023-03-28T02:41:24ZzhoEditorial Office of Reviews of Geophysics and Planetary Physics地球与行星物理论评2097-18932023-03-0154219721510.19975/j.dqyxx.2022-0522022-052Development and application of uppermost mantle Pn tomographyYuhui He0Yurui Guan1Hua Kong2Yan Lü3Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China The ray path of Pn waves is concentrated in the limited depth range of the uppermost mantle, which has unique advantages in ray transverse coverage density. Therefore, the Pn phase is the dominant phase for studying the velocity and anisotropic structure of the uppermost mantle. The lateral variation of Pn wave velocity reflects the temperature and composition difference of the uppermost mantle, and Pn anisotropy can reflect the movement of the mantle material and deformation characteristics. The high accuracy of Pn wave velocity and anisotropy structure in the uppermost mantle can provide key information about the lithospheric structure, plate movement, and deep thermal material migration process. With development and improvement, Pn tomography has become a mature technology to study the structure of the uppermost mantle and has been applied to obtain structural information such as crustal thickness, upper mantle velocity, and anisotropy on a global scale. This method characterizes the lateral heterogeneity of the global upper mantle structure and provides further understanding of the Earth's internal structure and plate subduction, continental collision deformation, volcanic activities, and other dynamic processes. With increasing global seismic stations and observation data, a large amount of high-quality Pn data provide favorable conditions for the study of the structure of the uppermost mantle. This paper reviews the development of the Pn tomography method and its applications in the world.https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2022-052pn waveuppermost mantlevelocityanisotropytomography |
| spellingShingle | Yuhui He Yurui Guan Hua Kong Yan Lü Development and application of uppermost mantle Pn tomography 地球与行星物理论评 pn wave uppermost mantle velocity anisotropy tomography |
| title | Development and application of uppermost mantle Pn tomography |
| title_full | Development and application of uppermost mantle Pn tomography |
| title_fullStr | Development and application of uppermost mantle Pn tomography |
| title_full_unstemmed | Development and application of uppermost mantle Pn tomography |
| title_short | Development and application of uppermost mantle Pn tomography |
| title_sort | development and application of uppermost mantle pn tomography |
| topic | pn wave uppermost mantle velocity anisotropy tomography |
| url | https://www.sjdz.org.cn/en/article/doi/10.19975/j.dqyxx.2022-052 |
| work_keys_str_mv | AT yuhuihe developmentandapplicationofuppermostmantlepntomography AT yuruiguan developmentandapplicationofuppermostmantlepntomography AT huakong developmentandapplicationofuppermostmantlepntomography AT yanlu developmentandapplicationofuppermostmantlepntomography |