A5071011445- earthquake and tectonic studies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- Archaeology and Natural History
- Geology and Paleoclimatology Research
- Geological formations and processes
- Botany, Ecology, and Taxonomy Studies
China Earthquake Administration
2021-2024
Heilongjiang Earthquake Agency
2019-2024
China University of Geosciences (Beijing)
2024
Abstract The Xiaojiang fault zone (XJFZ) is an important part of the Xianshuihe-Xiaojiang system, acting as eastern boundary Chuan-Dian block on southeastern margin Tibetan Plateau and accommodating lateral extrusion block. faulting activity paleoseismic history southern segment XJFZ remain poorly understood. Here, trench excavations radiocarbon dating revealed that four recent surface-rupturing paleoearthquakes have occurred Jianshui (JSF) in since ~15370 yr BP. ages these events, labeled...
The northeastern margin of the Tibetan Plateau (NE Plateau) exhibits active geological structures and has experienced multiple strong earthquakes, with M ≥ 7, throughout history. Particularly noteworthy is 1920 M81/2 earthquake in Haiyuan region that occurred a century ago documented as one deadliest earthquakes. Consequently, analyzing seismic risks holds significant importance. b value, crucial parameter for activity, plays pivotal role hazard analyses. This study calculates spatial values...
SUMMARY The Northeastern Tibetan Plateau has thickened crust and is still undergoing strong active crustal shortening deformation. Crustal anisotropy can provide clues to how the currently deforming evolving. We use an automatic method analyse upper-crustal of NE adjacent region using local earthquakes recorded at 39 permanent seismic stations during period 2009–2018. majority dominant fast directions are consistent with maximum horizontal stress orientation, suggesting that mainly...
Abstract The activity and seismicity of the southern segment Xianshuihe‐Xiaojiang fault system (XXFS) are both crucial for differentiating kinematic models along southeastern margin Tibetan Plateau. Based on tectono‐geomorphic interpretations optical imagery, digital elevation model (DEM)‐derived hillshades, contour maps, field observations geomorphic features, we document a surface rupture zone with maximum length ∼75 km offset ∼6.8 m Jianshui (JSF) in XXFS. By correlating geologic,...