A5101657124- Geology and Paleoclimatology Research
- Geological formations and processes
- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geomagnetism and Paleomagnetism Studies
- Electrochemical Analysis and Applications
- Pleistocene-Era Hominins and Archaeology
- Methane Hydrates and Related Phenomena
- Geological and Geophysical Studies
- Analytical chemistry methods development
- Electrochemical sensors and biosensors
Institute of Geology, China Earthquake Administration
2023-2024
China Earthquake Administration
2023-2024
Hunan Institute of Science and Technology
2023
Abstract The modern high topography of the eastern Tibetan Plateau is drained by several largest rivers on Earth, and exerts a prominent influence Asian monsoon pattern. However, when terrain was formed remains highly debated. Here, we present detrital zircon U‐Pb ages that indicate south‐flowing drainage system with distal headwaters passed through Ninglang Basin at ca. 45 Ma. We advocate for early–middle Eocene surface uplift in Gonjo areas to west creating southeast tilted across Tibet....
阿尔金断裂带是青藏高原自印度与欧亚大陆碰撞后向北扩展的前缘断裂,其新生代活动性对于研究青藏高原隆升与扩展过程和机制具有重要意义。近些年,运用热年代学、断裂几何学和运动学、沉积学、磁性地层学和地震学等方法对阿尔金断裂带的性质、组成结构、断裂活动时代、走滑断裂运动特征、走滑位移量和走滑速率等进行了细致的研究,而对阿尔金断裂带沿线受其控制的新生代沉积盆地的地层年代、沉积演化特征虽然也有一定研究,但往往仅限于单个盆地,缺乏对沿线盆地整体的对比认识,造成对阿尔金断裂带走滑起始时间及阿尔金山的隆升历史存在不同的认识。本文对近二十年来阿尔金断裂带沿线新生代沉积盆地的磁性地层年代与沉积相演化的研究进展进行综述,建立阿尔金断裂带沿线盆地新生代沉积序列和年代框架;辅助热年代学等资料,提出阿尔金断裂带的三阶段演化模型:始新世-中中新世,阿尔金断裂带以大幅度的走滑运动为主,同时伴随着阿尔金山小范围的隆升;中中新世开始,阿尔金山开始大规模的隆升,伴随着较少量的走滑运动;晚中新世以来,阿尔金断裂带构造活动加强。;The Altyn Tagh fault is the frontal in...
Abstract The anisotropy of magnetic susceptibility (AMS) has great potential in deciphering weakly deformed fabrics that may be related to tectonic stress. Previous studies have suggested lineation is a good indicator paleostrain direction. It unclear whether the fabric can also used indicate present‐day strain field. To verify this idea, we measured AMS freshly consolidated lacustrine fine‐grained sediments at 11 locations Qaidam and Chaka‐Gonghe basins northeastern Tibetan Plateau compared...
The anisotropy of magnetic susceptibility (AMS) has great potential in deciphering weakly deformed fabrics that may be related to tectonic stress. Previous studies have suggested lineation is a good indicator paleostrain direction. It unclear whether the fabric can also used indicate present-day strain field. To verify this idea, we measured AMS freshly consolidated lacustrine fine-grained and horizontal-bedding sediments at 11 locations Qaidam Chaka-Gonghe basins northeastern Tibetan...