A5059651053- Geophysical and Geoelectrical Methods
- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Seismology and Earthquake Studies
- Geological and Geochemical Analysis
- Geophysical Methods and Applications
- Geoscience and Mining Technology
- Seismic Imaging and Inversion Techniques
- Geochemistry and Geologic Mapping
- Geomagnetism and Paleomagnetism Studies
- High-pressure geophysics and materials
- Opportunistic and Delay-Tolerant Networks
- Geophysics and Sensor Technology
- Advanced Computational Techniques and Applications
- Mobile Ad Hoc Networks
- Soil, Finite Element Methods
- Caching and Content Delivery
- Advanced Sensor and Control Systems
- Solar and Space Plasma Dynamics
- Radio Astronomy Observations and Technology
- Artificial Immune Systems Applications
- Diverse Interdisciplinary Research Innovations
- Hydrocarbon exploration and reservoir analysis
China Earthquake Administration
2013-2024
Institute of Geology, China Earthquake Administration
2012-2024
State Key Laboratory of Earthquake Dynamics
2024
Shenyang Ligong University
2019
Nanjing University of Aeronautics and Astronautics
2019
Nanjing University of Posts and Telecommunications
2018
Czech Academy of Sciences, Institute of Geology
1993-2017
Shaanxi University of Technology
2013-2014
Loudi Central Hospital
2013
Xiaomi (China)
2010
The Longmenshan forms the eastern margin of Tibetan Plateau adjacent to Sichuan Basin. This range is anomalous because it formed despite low convergence and slip rates without development a foreland basin. devastating A.D. 2008 Wenchuan earthquake (Mw = 7.9) has renewed debate about tectonics Longmenshan. A magnetotelluric (MT) study was undertaken subsequent investigate crustal structure Longmenshan, inversion data reveals low-resistivity (high-conductivity) layer at depth ∼20 km beneath...
Abstract A three‐dimensional (3‐D) resistivity model around the 2014 M s 6.5 Ludian earthquake was obtained. The shows that aftershocks were mainly distributed in a shallow inverse L‐shaped conductive angular region surrounded by resistive structures. presences of this zone may be key factor leading to severe damage and surface rupture earthquake. northwest trending local belt along Baogunao‐Xiaohe fault interrupts northeast at Zhaotong‐Lianfeng middle crust, which seismogenic structure main...
Abstract Gongga Shan (GGS) is the highest mountain on eastern margin of Tibetan Plateau. However, mechanism for uplift still unclear due to a lack detailed geophysical studies. Inversion an array magnetotelluric data at 120 sites produced 3D resistivity model that revealed GGS massif characterized by high upper crust underlain westward dipping resistor middle crustal depths interpreted as underthrust Yangtze Craton (YC). A thin conductive layer sandwiched between these two zones resistivity....
Graphical Abstract
Abstract Studied in this article are the properties of electromagnetic (EM) fields generated by an earthquake due to motional induction effect, which arises from motion conducting crust across Earth's magnetic field. By solving governing equations that couple elastodynamic with Maxwell equations, we derive seismoelectromagnetic wavefields excited a single‐point force and double‐couple source full space. Two types EM disturbances can be generated, i.e., coseismic field accompanying seismic...
The upper mantle electrical conductivity structure of the pacific back‐arc beneath northeastern China was investigated through long‐period magnetotelluric (MT) and geomagnetic depth sounding (GDS) experiments. MT GDS responses were obtained up to periods 10 5 ∼ 6 seconds, inverted one‐dimensional (1‐D) models with minimum smooth constraints, respectively. resulting model compared past transition zone is more conductive than those other tectonic settings by almost one order magnitude in range...
SUMMARY Very clear coseismic electric and magnetic signals accompanying seismic waves were observed during the 2017 Mw 6.5 Jiuzhaigou earthquake, which took place in western China. In order to understand generation mechanism of these signals, we simulate responses this specific earthquake based on three mechanisms, namely, electrokinetic effect, motional induction effect rotation coil-type magnetometer. We conduct simulations using a point source model realistic layered earth compare data...
Abstract The Wuyi‐Yunkai Orogen experienced a polyphase tectonomagmatism and is key region for deciphering the alteration thermal structure of South China Block lithosphere. Herein, an electrical resistivity model lithosphere presented via three‐dimensional inversion broadband (0.003–3600 s) magnetotelluric (MT) data collected along 380‐km‐long profile comprising 62 MT sites across Orogen, robustness this critically evaluated through series sensitivity tests. reveals that upper crust...
Magnetotelluric (MT) measurements have been carried out at 62 sites along the profile Maqen-Lanzhou-Jingbian in junction zone of northeastern margin Qinghai-Tibet Plateau and Ordos block. The Robust technique was used data processing Bahr's for impedance tensor decomposition to remove 3-D effect. apparent resistivity, phase curves, 2-D skewness regional tectonic strike were analyzed. RRI inversion interpretation. results are as follows. (1) target area is separated by Maqen, Lanzhou...
In this paper, a new inversion method, Adaptive Regularized Inversion Algorithm (ARIA), is presented to overcome the difficulty of determination for regularized factor. Firstly, data variance disposing normalization put forward. This method uses way calculate influence matrix in inversion. Thus, only influences fitting, and has no on weight between object function model constraint function. So influencing factors factor are reduced. Secondly, definition roughness kernel course constructing...
Abstract Magnetotelluric data along a profile in the East Dabie Mountains was collected, which is across ultra‐high pressure metamorphic belt, NNE direction. By data‐analysis and interpretation, two‐dimensional electrical structure of crust‐upper mantle orogen obtained, indicating that North Huaiyang Tectonic Belt Block are different tectonic units. They separated by Xiaotian‐Mozitan fault, dipping north probably decoupled mid‐lower crust. Four layers can be identified from surface to depth,...