物探化探计算技术2024，Vol.46Issue(2)：137-145,9.DOI:10.3969/j.issn.1001-1749.2024.02.02
基于三重震相波形模拟的东北亚地区上地幔S波速度结构研究
The upper mantle shear wave velocity structure beneath northeast asia based on waveform modeling of the upper mantle triplications
赵一帆 1王毅1
作者信息
- 1. 中国科学技术大学地球和空间科学学院,合肥 230026
- 折叠
摘要
Abstract
Understanding upper mantle velocity structures can help us understand the mantle temperature and composition distri-bution and provide clues for geodynamics study.We study the upper mantle velocity structure beneath northeast Asia,based on S trip-lication data of two earthquake events in East Asia,recorded by China Digital Seismogragh network.The modeling results of these two events show that both models have a low-velocity zone above 250 km,and a high-velocity zone at the lower part of the mantle transition zone,which suggests the influence of the Pacific subduction slab in this area.The thickness of the mantle transition zone of both mod-els is the same as PREM because the influences of the slab near the two discontinuities are different.关键词
上地幔/地震波速结构/三重震相波形模拟/东北亚地区Key words
upper mantle/velocity structure/upper mantle triplication/East Asia分类
地质学引用本文复制引用
赵一帆,王毅..基于三重震相波形模拟的东北亚地区上地幔S波速度结构研究[J].物探化探计算技术,2024,46(2):137-145,9.
