A5065580811- Geological and Geophysical Studies
- earthquake and tectonic studies
- Seismic Imaging and Inversion Techniques
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geological formations and processes
- Hydrocarbon exploration and reservoir analysis
- Reliability and Maintenance Optimization
- Software Reliability and Analysis Research
- Statistical Distribution Estimation and Applications
- Seismic Waves and Analysis
- Software Engineering Research
- Geological Modeling and Analysis
- Earthquake Detection and Analysis
- Health Systems, Economic Evaluations, Quality of Life
- Geophysical Methods and Applications
- Oceanographic and Atmospheric Processes
- Nuclear Physics and Applications
- Geology and Paleoclimatology Research
- Drilling and Well Engineering
- Power System Reliability and Maintenance
- Healthcare cost, quality, practices
- Seismology and Earthquake Studies
South China Sea Institute Of Oceanology
2016-2025
Institute of Oceanology
2016-2025
Chinese Academy of Sciences
2016-2025
University of Chinese Academy of Sciences
2006-2025
Sichuan University
2024-2025
Nanjing Medical University
2024-2025
Jiangsu Province Hospital
2024-2025
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2021-2024
Peking University First Hospital
2024
Peking University
2024
Coupled magmatic and tectonic activity plays an important role in high-temperature hydrothermal circulation at mid-ocean ridges. The patterns for such systems have been elucidated by microearthquakes geochemical data over a broad spectrum of spreading rates, but not generally available ultra-slow Here we report new geophysical fluid active venting Dragon Horn area (49.7°E) on the Southwest Indian Ridge. Twin detachment faults penetrating to depth 13 ± 2 km below seafloor were identified...
The Southwest Indian Ridge (SWIR) is an ultraslow spreading end‐member of mid‐ocean ridge system. We use air gun shooting data recorded by ocean bottom seismometers (OBS) and multibeam bathymetry to obtain a detailed three‐dimensional (3‐D) P wave tomographic model centered at 49°39′E near the active hydrothermal “Dragon Flag” vent. Results are presented in form 3‐D seismic traveltime inversion over center both ends segment. show that crustal thickness, defined as depth 7 km/s isovelocity...
Abstract The oceanic crust is formed by a combination of magmatic and tectonic processes at mid‐ocean spreading centers. Under ultraslow environment, however, observations thin mantle‐derived peridotites on the seafloor suggest that large portion mainly processes, with little or absence magmatism. Using three‐dimensional seismic tomography an Southwest Indian Ridge segment containing central volcano 50°28′E, here we report presence extremely accretion crust. Our results reveal low‐velocity...
Abstract P wave velocity models were obtained by forward and inverse modeling from 38 ocean bottom seismometers deployed in the central East subbasin of South China Sea (SCS). Four types crust have been defined: (a) thin oceanic (<5 km), (b) typical (5–6 (c) thick hosting postspreading volcanoes (>6 km) with significant intrusive roots, (d) enhanced spreading features but without roots. Within subbasin, crust, only identified inside an 80 km wide zone, is located within overall 150...
Abstract The Southwest Indian Ridge (SWIR) is characterized by an ultraslow spreading rate, thin crust, and extensive outcrops of serpentinized peridotite. Previous studies have used geochemical geophysical data to suggest the presence a thicker crust at central shallowest portions SWIR, from Prince Edward (35°30′E) Gallieni (52°20′E) fracture zones. Here we present new analysis wide‐angle seismic along ridge 49°17′E–50°49′E. Our main conclusions are as follows: (1) find oceanic layer 2...
Abstract In 2016, we carried out a coincidental multichannel reflection seismic and wide‐angle reflection/refraction experiment along 320‐km‐long profile across the northeastern margin of South China Sea. Based on these new data, studied velocity structure transitional continental crust using both forward modeling travel‐time tomography. The model shows that Mesozoic sediments have velocities 4.3–5.3 km/s are about 3–6 km thick in magnetically quiet Chaoshan Depression attenuated crust....
Abstract A three‐dimensional (3D) P‐wave seismic velocity (Vp) model of the crust in northern South China Sea margin drilled by IODP Expeditions 367/368/368X has been obtained with first‐arrival travel‐time tomography using wide‐angle data from a network 49 OBSs and 11 air‐gun shot lines. The 3D Vp distribution constrains extent, structure nature continental, continent to ocean transition (COT), oceanic domains. Continental laterally ranges thickness ∼8 20 km, ∼20 km‐width COT contains no...
A software reliability model based on a nonhomogeneous Poisson process (NHPP) was proposed by N.F. Schneidewind (Sigplan Notices, vol.10, p.337, 1975). Since then, many other NHPP models have been suggested and studied various authors. The authors show that several can be derived the general assumptions made Schneidewind. Also, they note in original paper, there are interesting approaches worth further consideration. To mention few, modelled both correction detection process. Methods of...
Abstract In order to investigate the deep crustal structure across mid‐northern continental margin of South China Sea (SCS), a wide‐angle OBS profile (OBS2006‐3) was simulated by using forward and inversion methods. This profile, 319 km length NNW‐SSE oriented, crosses Dongsha uplift, Chaoshan depression oceanic basin. Fourteen Ocean Bottom Seismometers (OBS) were used in this survey. The velocity model reveals that Mesozoic sediment is remarkably thick with maximum 8 km; whose increases...
Abstract OBS973‐1 is a wide angle reflection and refraction deep seismic line using Ocean Bottom Seismometers (OBS), collected for the first time in southern part of South China Sea. The crosses margin Southwest Sub‐basin middle Nansha Block. By phase analysing travel fitting, 2D P‐wave velocity model along constructed. modeling results show that surface sedimentary layer has 2.5~4.5 km/s thickness 1000~3000 m, with locally rough basement interface. crystalline 4.5~5.5 on top, increasing to...
Abstract Intense magmatism in the form of widespread volcanoes and lava flows is identified high-resolution 3-D seismic data over a post-rift sequence northern South China Sea (SCS). Such post-dates end seafloor spreading SCS by at least 6.8 m.y. A detachment (boundary) fault propagating into deep-seated magma chamber provided main vertical pathway for migration. In turn, normal faults dykes constituted shallow plumbing system through which migrated from boundary was extruded onto...
Abstract Urban seismology has recently emerged as a vibrant scientific field, driven by the growing interest in seismic signals generated major public events, sports gatherings, and transportation services. However, deploying dense traditional seismometers economically active, densely populated urban areas with heavy traffic poses significant challenges. In this study, we conducted field experiment utilizing distributed acoustic sensing (DAS) technology during fireworks display Guangzhou on...
Oxidative stress and reactive oxygen species play a pivotal role in carcinogenesis. Recent studies have indicated potential reduction cancer incidence associated with antioxidant intake; however, these results remain controversial. We performed 2-sample Mendelian randomization (MR) analysis to explore the causal relationship between dietary vitamins (retinol, carotene, vitamin C, E), oxidative injury biomarkers (GST, CAT, SOD, GPX), risk of colorectal (CRC). The genetic instrumental variants...
The subduction of oceanic plateaus is a global phenomenon that reshapes the tectonic configuration systems and plays crucial role in water cycling volatile fluxes. While previous studies have primarily focused on processes occurring after into zones, but effects subducting bending hydration before remain unclear. Using wide-angle seismic data perpendicular to trench, we investigated these as Caroline Plateau approaches trench. P-wave velocity structure shows gradual increase crustal...
Seamount subduction plays a pivotal role in shaping zone dynamics, significantly influencing deformation processes and seismicity. This study examines the crustal upper mantle associated with seamount beneath northern Luzon, where South China Sea Plate underthrusts region. We employed local S-wave splitting techniques to characterize present&#160;seismological evidence of subduction&#8217;s modulating dynamics.Our findings reveal dominant trench-normal fast-axis orientation, aligned...