A5101913653- earthquake and tectonic studies
- Earthquake Detection and Analysis
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Seismology and Earthquake Studies
- Seismic Waves and Analysis
- Geological and Geophysical Studies
- Cyclopropane Reaction Mechanisms
- Seismic Imaging and Inversion Techniques
- Radical Photochemical Reactions
- Catalytic C–H Functionalization Methods
- Graphene research and applications
- Topological Materials and Phenomena
- Seismic Performance and Analysis
- Advanced Sensor and Control Systems
- Remote Sensing and Land Use
- Fluorine in Organic Chemistry
- Sulfur-Based Synthesis Techniques
- GNSS positioning and interference
- Geoscience and Mining Technology
- AI and Multimedia in Education
- Chemical Thermodynamics and Molecular Structure
- Geological and Geophysical Studies Worldwide
- Geotechnical and Geomechanical Engineering
- Diamond and Carbon-based Materials Research
Institute of Geology, China Earthquake Administration
2016-2025
China Earthquake Administration
2016-2025
Zhejiang Chinese Medical University
2023-2024
Qilu University of Technology
2024
Shandong Academy of Sciences
2024
Second Military Medical University
2023
Shanghai University of Traditional Chinese Medicine
2023
Université Côte d'Azur
2017-2021
Observatoire de la Côte d’Azur
2017-2021
Institut de Recherche pour le Développement
2017-2021
Abstract The 5 September 2022 Mw 6.7 Luding earthquake occurred on the Moxi segment of highly active Xianshuihe fault in eastern Tibet. Here, we constrain coseismic slip by jointly inverting displacements measured Global Positioning System, seismometer and Interferometric Synthetic Aperture Radar. Along fault, concentrated left‐lateral strike extends ∼30 km along above 10 depth, producing 0.7–1.0 m shallow slip. Clustered aftershocks inversions suggest that secondary conjugate Mozigou may...
Cyclopropanes bearing contiguous all-carbon quaternary centers continue to attract attention due their bioactivities. However, methods obtain cyclopropanes with remain largely unexplored the high steric hindrance of these compounds. Herein, we report a visible-light-mediated energy-transfer (EnT) strategy realize in situ donor/donor carbenes from readily available N-tosylhydrazones, facilitating synthesis highly congested EWG-free cyclopropanes. Through this approach, are rapidly installed...
Abstract Southeastern (SE) Tibet is one of the most seismically active regions in mainland China, but spatial distribution interseismic coupling that quantifies seismic hazard unknown along major faults. In this study, we constructed an elastic block model to invert Global Positioning System data for slip rates and locking coefficients 20 faults SE Tibet. Our results identify 27 strongly coupled fault segments with >0.5, defined as potential seismogenic asperities, extending laterally...
Abstract We use Global Positioning System (GPS) and Interferometric Synthetic Aperture Radar (InSAR) data to quantify the interseismic coupling along Xianshuihe‐Xiaojiang fault system (XXFS). Our results confirm 7–11 mm/a of left‐lateral strike‐slip motion XXFS. South Shimian County, high is found down 20 km‐depth Anninghe‐Zemuhe fault. A second 130 km‐long section, highly coupled 10–15 km‐depth, identified northern Xiaojiang North Kangding Xianshuihe appears be predominantly creeping at...
To date, [3 + 2] cycloadditions of diazo esters with alkynes or alkenes have been a robust tool to generate pyrazoles and pyrazolines. However, methods capable generating donor/donor species from readily available N-tosylhydrazones furnish cycloadditions, remain elusive. Herein, we describe the first visible-light-induced precursors afford novel (spiro)pyrazolines bearing quaternary center. This protocol shows tolerable substrate scope covering versatile carbonyl compounds alkenes....
Isoxazolines and isoxazoles commonly serve as core structures of many therapeutic agents natural products. However, the metal-free catalysis-free strategy for synthesis these privileged motifs at room temperature remains a challenging task. Herein, we report three-component to afford diverse isoxazolines via [3 + 2] cycloadditions in situ-formed nitronates olefins/alkynes under visible-light irradiation.
Characterizing the coseismic slip behaviors of earthquakes could offer a better understanding regional crustal deformation and future seismic potential assessments. On 18 December 2023, an Mw 6.0 earthquake occurred on Lajishan–Jishishan fault system (LJFS) in northeastern Tibetan Plateau, causing serious damage casualties. The seismogenic hosting this is not well constrained, as no surface rupture was identified field. To address issue, study, we use Interferometric Synthetic Aperture Radar...
Abstract We investigated the spatial distribution of aseismic creep on Laohushan‐Haiyuan fault using Global Positioning System (GPS) data (1999–2017) and Interferometric Synthetic Aperture Radar (InSAR) (2003–2010). Comparisons among GPS, InSAR line‐of‐sight (LOS) rates, leveling show that neither nor GPS vertical velocities can fit signal mapped into LOS, implying either complicated crustal deformation in northeastern Tibet and/or complex error structures data. Thus, we combined horizontal...
Summary The central Pamir plateau moves northward and collides into Eurasia at a rate that varies significantly over its 600 km-wide extension. However, the active structures accounting for such internal shear strain remain enigmatic. In this study, we use Interferometric Synthetic Aperture Radar (InSAR) data to investigate coseismic postseismic deformation of ${M}_w6.9$ Sarez earthquake on 23 February 2023. Using Bayesian framework, find most likely seismogenic fault geometry explore full...
Abstract The archetypical 3D topological insulators Bi 2 Se 3 , Te and Sb commonly exhibit high bulk conductivities, hindering the characterization of surface state charge transport. optimally doped 2− x S, however, allow for such characterizations to be made. Here we report an experimental comparison conductance states in 1.1 0.9 based on temperature-dependent high-pressure measurements. We find that at low temperature remains constant face orders magnitude increase conductance, revealing a...
Abstract Knowledge of the slip behavior Altyn Tagh fault (ATF) has significant implications for our understanding tectonic deformation Tibetan Plateau. In this study, we process Global Positioning System (GPS) data spanning 2009–2017 across western ATF, merge solution with recently published GPS velocities, and obtain a dense velocity field northern Tibet. We introduce an elastic block model estimate rate, interseismic coupling (ISC), seismic moment accumulation rate along ATF. The estimated...
The 12 November 2017 Darbandikhan earthquake (Mw 7.3) occurred along the converence zone. Despite extensive research on this earthquake, none of work explained whether rupture was limited to thick sedimentary cover or it extends underlying crystalline basement rock (or both). Besides, region will generate devastating earthquakes again and there is a one-to-one correlation between these anticlines blind-reverse faults need further investigation. In study, we derived co-seismic interferograms...
Peak ground displacement (PGD) and peak velocity (PGV) are critical parameters during earthquake early warning, as they can provide rapid magnitude estimation before rupture end. In this study, we used the high-rate Global Navigation Satellite System (GNSS) data from 55 continuous stations to estimate of 2021 Maduo in western China. We relative positioning method variometric approach acquire real-time GNSS waveforms, respectively. The results showed amplitude waveforms gradually decreased...
Investigating relationships between temporally- and spatially-related continental earthquakes is important for a better understanding of the crustal deformation, mechanism earthquake nucleation occurrence, triggering effect earthquakes. Here we utilize Global Positioning System (GPS) velocities before after 2008 Mw 7.9 Wenchuan to invert fault coupling Longmenshan Fault (LMSF) investigate impact on 2013 6.6 Lushan earthquake. The results indicate that, earthquake, segments were strongly...
ABSTRACT Investigating the interaction between slow-slip events (SSEs) and large earthquakes provides insights into earthquake-triggering mechanisms is crucial for earthquake hazard assessment. In this study, we used Sentinel-1 Interferometric Synthetic Aperture Radar Global Positioning System (GPS) data to estimate source parameters of 2018 Mw 7.2 Pinotepa, Mexico, earthquake. The results show that ruptured both seismogenic zone a long-term SSE area, with two asperities during event. GPS...
This study focuses on the crustal deformation and interseismic fault coupling along strike-slip Kunlun fault, northern Tibet, whose western segment ruptured in 2001 Mw 7.8 Kokoxili earthquake. We first integrated published Global Positioning System (GPS) velocity solutions calculated strain rate fields covering fault. Our results show abnormally high post-earthquake values across ruptures; furthermore, these exceed those pre-earthquake data. Together with two tracks of interferometric...
SUMMARY We combine Global Positioning System (GPS) velocity field with Interferometric Synthetic Aperture Radar (InSAR) results to study the interseismic deformation across western Altyn Tagh fault (ATF) at longitude 86° E. GPS and InSAR data are consistent after correcting for contribution from vertical in line-of-sight map. identify an area of ∼2 mm a−1 sinistral shear ∼6 NS shortening located ∼150 km south ATF near Manyi system. Excluding that area, Bayesian inversion a 2-D profile...
Abstract Integrating newly‐processed Interferometric Synthetic Aperture Radar (InSAR) and available Global Positioning System (GPS) data, we obtained a dense interseismic velocity field across the Tuosuo Lake segment of Kunlun fault. Using Bayesian approach, spatial distribution fault slip coupling. The rate below locking depth, which represents contemporary steady‐state faulting, demonstrates an overall decrease, decreases non‐monotonically toward eastern tip in range ∼5–11 mm/a. Two...
The Haiyuan-Liupanshan fault, an active tectonic feature at the Tibetan Plateau's northeastern boundary, was ruptured by two M8 earthquakes (1920 and 1927) bracketing unbroken section (the Tianzhu seismic gap). A high hazard is expected along gap. To monitor deformation characteristics do a risk assessment, we made measurements newly built campaign-mode Global Positioning System (GPS) stations 13 pre-existing in 2013 2014. Adding existing data from 1999 to 2014, derived new velocity field....