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2020 | OriginalPaper | Buchkapitel

Analysis of Temporal and Spatial Variation of Crustal Strain Around Longmenshan Fault Based on GNSS Observation

verfasst von : Huijuan Liu, Xianchun Chen, Caiya Yue, Qiang Yang

Erschienen in: China Satellite Navigation Conference (CSNC) 2020 Proceedings: Volume I

Verlag: Springer Singapore

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Abstract

The Longmenshan fault zone is located in the transition zone between the eastern margin of Qinghai-Xizang Plateau and Sichuan Basin. It is an important part of the north-south seismic belt in China, and the tectonic activity is frequent, and the 2008 Wenchuan earthquake and the 2013 Ya’an earthquake are all on the tectonic fault. In this paper, the coordinates’ time series and velocity fields in the region with high precision are obtained based on GAMIT/GLOBK. The strain parameters in the region are calculated by using the strain model and the high-precision dynamic model of the fault zone and the surrounding crust are constructed, and the time-space distribution of the abnormal information of the fault zone is extracted and analyzed with the reference of the earthquake such as Wenchuan and Ya’an. The study in this paper can be used as a reference for the analysis of crustal movement characteristics and the assessment of geological hazards in Sichuan-Yunnan region.

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Metadaten
Titel
Analysis of Temporal and Spatial Variation of Crustal Strain Around Longmenshan Fault Based on GNSS Observation
verfasst von
Huijuan Liu
Xianchun Chen
Caiya Yue
Qiang Yang
Copyright-Jahr
2020
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-3707-3_24

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