DOI: 10.1002/2016GL068618
论文题名: Uppermost mantle structure beneath eastern China and its surroundings from Pn and Sn tomography
作者: Sun W. ; Kennett B.L.N.
刊名: Geophysical Research Letters
ISSN: 0094-9114
EISSN: 1944-8845
出版年: 2016
卷: 43, 期: 7 起始页码: 3143
结束页码: 3149
语种: 英语
英文关键词: eastern China
; Pn
; Sn
; tomography
; uppermost mantle
; Vp/Vs
Scopus关键词: Lithology
; Seismic waves
; Shear waves
; Tomography
; Eastern China
; Hot materials
; Ordos Basin
; P-velocity
; Rapid variation
; Seismic networks
; Tomographic inversion
; Uppermost mantle
; Tin
英文摘要: The Pn and Sn residuals from regional events provide strong constraints on the structure and lithological characteristics of the uppermost mantle beneath eastern China and its surroundings. With the dense Chinese Digital Seismic Network in eastern China, separate Pn and Sn tomographic inversions have been exploited to obtain P and S velocities at a resolution of 2° × 2° or better. The patterns of P velocities are quite consistent with the S velocities at depth of 50 and 60 km, but the amplitude of P wave speed anomalies are a little larger than those of S wave speed. The low P wave speed, high S wave speed, and low Vp/Vs ratio beneath the northern part of Ordos Basin are related to upwelling hot material. Abrupt changes in material properties are indicated from the rapid variations in the Vp/Vs ratio. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979489011&doi=10.1002%2f2016GL068618&partnerID=40&md5=1c348d222c065748a8a81983d4df65da
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10077
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Beijing, China
Recommended Citation:
Sun W.,Kennett B.L.N.. Uppermost mantle structure beneath eastern China and its surroundings from Pn and Sn tomography[J]. Geophysical Research Letters,2016-01-01,43(7).