气候变化领域集成服务门户(CCPortal): N-S variations of crustal structure beneath the central Tarim Basin from joint inversion of receiver functions, ambient seismic noise surface wave dispersion, and magnetotelluric data

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DOI	10.1016/j.tecto.2024.230299
	N-S variations of crustal structure beneath the central Tarim Basin from joint inversion of receiver functions, ambient seismic noise surface wave dispersion, and magnetotelluric data
	Peng, Miao; Tan, Handong; Lin, Changhong; Hu, Shaoqian; Wu, Pingping; Xu, Lehong; Wang, Chonglong; Liu, Yifan; Wang, Lihui; Li, Bohao
发表日期	2024
ISSN	0040-1951
EISSN	1879-3266
起始页码	877
卷号	877
英文摘要	To understand the complex crustal structure beneath the central Tarim Basin, we perform joint inversions of Pwave receiver functions, ambient seismic noise Rayleigh wave dispersion, and magnetotelluric data along a nearly N-S oriented linear array. In this contribution, we present a multistep flowchart to enhance the efficiency and reliability of the joint inversion. Synthetic examples indicate that this method is effective and appropriate for realistic conditions. By using these three complementary datasets, we can construct accurate 1-D models, particularly in the presence of thick overlying low-velocity layers. We apply this approach to data recorded at 45 stations within the Tarim Basin and generate quasi-2-D images that reveal distinct lateral variations along the N-S profile. In the near-surface region, we observe that the conductive and low-velocity sedimentary layer is thinner beneath uplift units and thicker beneath structural depressions, which correlates well with surface geology and previous studies. Additionally, we interpret several major faults, concealed crustal detachment layers, and discuss the geological implications. A conspicuous feature of the integrated images is the identification of a localized and deep-rooted doming structure beneath the Bachu uplift, characterized by high-velocity and highresistivity anomalies. This structure also exhibits elevated density, intense magnetism and the thinnest overlying sedimentary layer. Consequently, we infer that these anomalies are probably linked to a hybrid basement consisting of plume-related intrusions and mafic dyke swarms.
英文关键词	Joint inversion; Receiver function; Surface wave; Magnetotellurics; Tarim basin
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:001203360400001
来源期刊	TECTONOPHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299052
作者单位	China University of Geosciences; China University of Geosciences; China University of Geosciences; China Earthquake Administration
推荐引用方式 GB/T 7714	Peng, Miao,Tan, Handong,Lin, Changhong,et al. N-S variations of crustal structure beneath the central Tarim Basin from joint inversion of receiver functions, ambient seismic noise surface wave dispersion, and magnetotelluric data[J],2024,877.
APA	Peng, Miao.,Tan, Handong.,Lin, Changhong.,Hu, Shaoqian.,Wu, Pingping.,...&Li, Bohao.(2024).N-S variations of crustal structure beneath the central Tarim Basin from joint inversion of receiver functions, ambient seismic noise surface wave dispersion, and magnetotelluric data.TECTONOPHYSICS,877.
MLA	Peng, Miao,et al."N-S variations of crustal structure beneath the central Tarim Basin from joint inversion of receiver functions, ambient seismic noise surface wave dispersion, and magnetotelluric data".TECTONOPHYSICS 877(2024).