气候变化领域集成服务门户(CCPortal): Shear wave velocity structure of the upper crust in north Xiaojiang fault zone in SE Tibet via short-period ambient noise dense seismic array

CCPortal

DOI	10.1016/j.pepi.2023.107110
	Shear wave velocity structure of the upper crust in north Xiaojiang fault zone in SE Tibet via short-period ambient noise dense seismic array
	Chen, Si; Gao, Rui; Lu, Zhanwu; Liang, Yao; Cai, Wei; Cao, Lifu; Chen, Zilong; Wang, Guangwen
发表日期	2023
ISSN	0031-9201
EISSN	1872-7395
卷号	344
英文摘要	The Xiaojiang Fault Zone (XJF) is an important boundary fault on the southeast border of the Tibetan Plateau, with a complex subterranean structure and strong tectonic activity. In the present study, 252 seismograph stations were deployed in the northern section of the XJF to collect ambient noise data in a span of 35 days. The minimum resolution attained was 2 km x 2 km to develop a high-precision underground velocity structure model. The velocity model helped in revealing that the low-velocity distribution originated below the XJF. It was also found that the fault, which is the primary channel for magma to rise, might be the cause of the upper crustal deformation of the XJF. The Dongchuan mining area is located to the west of the XJF, which has a low-velocity structure. However, the high-velocity structure appeared on both sides of the ore body. It is speculated that the ore was formed by magma intrusion. The intrusion serves as a heat source for the mining area and promotes deposit formation.
关键词	Xiaojiang fault zone Ambient noise tomography Dense seismic array
英文关键词	LARGE IGNEOUS PROVINCE; PB-ZN DEPOSIT; SOUTHEASTERN FRONT; 2-STATION ANALYSIS; SOUTHWEST CHINA; TOMOGRAPHY; SICHUAN; DISPERSION; PLATEAU; YUNNAN
WOS研究方向	Geochemistry & Geophysics
WOS记录号	WOS:001100011200001
来源期刊	PHYSICS OF THE EARTH AND PLANETARY INTERIORS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283558
作者单位	China Geological Survey; Institute of Geology, Chinese Academy of Geological Sciences; Chinese Academy of Geological Sciences; Sun Yat Sen University
推荐引用方式 GB/T 7714	Chen, Si,Gao, Rui,Lu, Zhanwu,et al. Shear wave velocity structure of the upper crust in north Xiaojiang fault zone in SE Tibet via short-period ambient noise dense seismic array[J],2023,344.
APA	Chen, Si.,Gao, Rui.,Lu, Zhanwu.,Liang, Yao.,Cai, Wei.,...&Wang, Guangwen.(2023).Shear wave velocity structure of the upper crust in north Xiaojiang fault zone in SE Tibet via short-period ambient noise dense seismic array.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,344.
MLA	Chen, Si,et al."Shear wave velocity structure of the upper crust in north Xiaojiang fault zone in SE Tibet via short-period ambient noise dense seismic array".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 344(2023).