A5087250022- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Groundwater and Isotope Geochemistry
- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Seismic Waves and Analysis
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Geochemistry and Geochronology of Asian Mineral Deposits
- Fluoride Effects and Removal
- Arsenic contamination and mitigation
- Reconstructive Surgery and Microvascular Techniques
- Orthopedic Surgery and Rehabilitation
- Geological and Geophysical Studies
- Geochemistry and Elemental Analysis
- Environmental Quality and Pollution
- Bone fractures and treatments
- Geophysical Methods and Applications
- Geoscience and Mining Technology
- Congenital limb and hand anomalies
- Evaluation Methods in Various Fields
- CO2 Sequestration and Geologic Interactions
China Earthquake Administration
2022-2025
Central South University
2010-2020
Xiangya Hospital Central South University
2010
Referring to the first law of geography and its extension in time domain, this research makes improvements on two-step method (TSM) presented retrieve seismic microwave brightness temperature (MBT) anomaly, a new named spatio-temporally weighted TSM (STW-TSM) is developed. Temporally background calculated using nonseismic data according respective intervals with shocking year, applied remove long-term trend so as basic MBT residuals. Spatially referring Euclidean geospatial distance away...
Based on the spatiotemporally weighted two-step method (STW-TSM), spatiotemporal characteristics of residual microwave brightness temperature (MBT) with Mw7.9 Wenchuan earthquake May 12, 2008 are revealed by satellite data from Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) sensor. Two significant MBT positive anomalies found to be exactly in spatial accordance two geological Quaternary zones, and detailed geometric information anomaly is correlated frequencies....
Abstract This study explores the potential of machine learning algorithms for earthquake prediction, utilizing fluid chemical anomaly data from hot springs. Six springs, located within an active fault zone along southeastern coast China, were carefully chosen as hydrochemical monitoring sites extended period two and a half years. Using this data, prediction model integrating six was developed to forecast M ≥ 5 earthquakes in Taiwan. The model's performance validated against recorded events,...
Studying the hydrogeochemical characteristics of hot springs provides essential geochemical information for monitoring earthquake precursors and understanding relationship between fluids, fractures, earthquakes. This paper investigates along Tingri–Nyima Rift (TNR) in southern Tibet, a seismically active zone at collision front Indian Asian-European plates. The major elements, hydrogen, oxygen isotopes seven thermal were analyzed from July 2019 to September 2021. findings indicate that Mount...
Based on the observation of geochemical characteristics 19 hot springs in Litang Fault Zone (LFZ) from 2010 to 2019, major elements, trace and stable isotopes were investigated, a conceptual model ground fluid circulation LFZ was established. The main hydrochemical type spring water samples is HCO3−-Na+. δ2H values range −157.6‰ −123.4‰ δ18O −24.5‰ −15.4‰. fault zone mainly recharged by infiltrating precipitation, with recharge elevation 4062~6018 m. Hydrochemical types are controlled...
Hydrogeochemical characterization studies are regarded as an important method for determining the origin of hot springs. The major elements, trace and stable isotopes four groups spring water samples two gas collected from intersection Altyn Tagh fault zone East Kunlun belt were investigated in this study. temperature ranged between 6 °C 14 °C. chemistry types springs Na·Mg-Cl, Mg·Na-Cl·HCO3, Na-Cl·SO4, Na-Cl·HCO3. δD values −50.00% to −68.60%, while δ18O −6.90% −8.60%. was recharged mainly...
Geochemical investigation on the origin and circulation of geothermal water is crucial for better understanding interaction between hydrosphere lithosphere. Previous studies Himalayan belt mainly distributed in central eastern Tibetan Plateau. In this study, samples (8 hot springs 1 cold spring) from Karakorum fault (KKF) zone western Plateau were analyzed hydrogeochemical characteristics isotopic compositions. Three types spring along KKF classified basis ionic concentration Sr composition:...
Introduction: Carbon dioxide emissions from non-volcanic areas are undervalued in the carbon cycle. Methods: First estimates of diffuse CO 2 flux Anninghe—Zemuhe fault (AZF), Southeastern Tibetan Plateau, China, which suggests this could equal 15% all volcanoes China. Following accumulation chamber method, was investigated at 1,483 points, and along 67 profiles crossing AZF. Results discussion: Total AZF were estimated 1.2 Mt yr -1 . The relationship between soil gas fluxes, earthquakes,...
Trace elements in hot-spring waters are indicators for tracing hydrochemical processes, such as the deep circulation of geothermal water, degree water–rock interaction, redox reactions, contamination shallow water by thermal etc. In this study, 74 hot springs Xianshuihe–Xiaojiang Fault Zone (XSHF-XJF) were chosen an investigation geochemical characteristics trace using classic tools and multivariate statistical analysis. The results indicated (1) mainly derived from atmospheric precipitation...
Significant anomalous hydrogeochemical changes in hot spring water are detected during strong seismic cycles. It is now necessary to clarify the relationship between tectonic movements, earthquakes and evolution of springs. In this paper, laboratory analyses major, trace elements, δD, δ 18 O 87 Sr/ 86 Sr values 28 waters Jinshajiang fault zone (JSJFZ) northwestern boundary Sichuan-Yunnan block were conducted. The results showed that primary source for JSJFZ springs was atmospheric...
The coupling relationship between regional seismic activity and the hydrogeochemical field provides an important theoretical basis for earthquake precursor exploration. intersection area of Red River fault zone (RRF) Xiaojiang (XJF) in southeast Yunnan province has become focus monitoring prediction because its special tectonic position China. There were 20 hot springs that sampled analyzed laboratory major elements, including trace silica, stable isotopes (δ18O δD), strontium isotopes, from...