A5101459364- Geological and Geochemical Analysis
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Aeolian processes and effects
- Clay minerals and soil interactions
- Remote Sensing and Land Use
- Advanced Computational Techniques and Applications
- Underwater Acoustics Research
- Metallurgical Processes and Thermodynamics
- Marine and coastal plant biology
- Environmental Changes in China
- Rock Mechanics and Modeling
- Environmental Quality and Pollution
- Mineralogy and Gemology Studies
- Geological and Geophysical Studies
Chinese Academy of Geological Sciences
2018-2024
Ministry of Natural Resources
2018-2024
Czech Academy of Sciences, Institute of Geology
2021
Nanjing Forestry University
2009
Second Institute of Oceanography
2005-2007
To assess the metamorphic and deformational history preserved in apatite, we selected high-pressure granulite to lower-amphibolite facies rocks from East Himalaya Syntaxis (EHS) Tibetan orogen for situ apatite analysis. Through cross-correlation of cathodoluminescence (CL) images, Electron Backscatter Diffraction (EBSD) analysis, trace element U-Pb geochronology, elucidate evolution growth deformation. In a sample, has no crystallographic preferred orientation (CPO) but instead strong shape...
Abstract Gneiss domes developed in the eastern Songpan‐Ganzi Flysch (SGF) belt, located hinterland of Longmen Shan Thrust belt Tibetan Plateau. These have similar pressure‐temperature (denoted as P‐T below) paths and formed during Late Triassic‐Early Jurassic. One them, Markam Dome (MGD), is cored by granite mantled a metaturbidite aureole. Our structural observations show top‐to‐the‐south shearing that transposed an upright S 1 foliation into flat‐lying NW‐SE striking 2 composite Triassic...
鲜水河断裂带位于青藏高原东缘,是中国大陆内部地震活动性最强的大型左行走滑断裂之一,揭示其深部应力状态与应变是认识孕震环境和评估断裂带地震危险性的重要依据。本文选择鲜水河断裂带未来强震危险性较高的康定段作为研究对象,聚焦雅拉河断裂带内的糜棱岩,通过光学显微镜和扫描电镜(SEM)的显微构造分析、粒度统计、石英组构和Ti含量测试,确定石英递进变形过程中差应力的变化和不同阶段的变形温度,构建鲜水河断裂带康定段的地壳强度剖面。观测结果显示,糜棱岩在抬升过程中石英发生颗粒边界迁移(GBM)、亚颗粒旋转(SGR)和膨凸重结晶(BLG)三种类型的变形机制。构建的地壳强度剖面显示,雅拉河断裂带应变速率约为6.08×10<sup>-13</sup>~1.62×10<sup>-11</sup>s<sup>-1</sup>,脆韧性转化带发生在~12.5±2.5km深度,该处岩石极限强度~145.5MPa。实际岩石强度(μ=0.383)小于理论破裂摩尔圆(μ=0.85)的岩石强度发育应变弱化。当韧性变形阶段由位错蠕变形成的应变局部化以及细粒化等机制降低岩石的强度至临界条件时,会导致破裂频次的增强,应力释放...
Abstract The tectonic and topographic evolution of the southeastern Tibetan Plateau based on low‐temperature thermochronology data is controversial, especially whether it tectonically‐ or climatically‐controlled, along Lancang fault (LCF) that links flat central plateau to west with high relief east. To explore LCF its role in Plateau, we carried out detailed field investigation (AHe, AFT, ZHe) analyses. Field evidence indicate northern splits into two branches, Yangda‐Yaxu Baqing‐Leiwuqi...
The exhumation mechanism of the low-temperature/high-pressure (LT/HP) rocks, is critical for understanding formation central Qiangtang metamorphic belt (CQMB), Tibetan Plateau, but it still hotly debated. Here, we report field, petrological, phase-equilibria and petro-physical modelling data on newly discovered lawsonite-bearing eclogites, epidote eclogite blueschists from Lanling area in CQMB. mineral characteristics phase equilibria modeling reveal that LT/HP rocks record peak P-T...