Late Quaternary Structural Deformation and Tectono-Geomorphic Features along the Xiugou Basin Segment, Eastern Kunlun Fault Zone
详细信息
- 责任者：Yang Shunhu (Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Fu Bihong
- 刊名：Quaternary Sciences
- 出版年：2012
- 卷期：32(5)
- 关键词：构造变形 ; tectonic deformation ; 构造地貌 ; morphostructures ; 昆仑山 ; Kunlun Mountains
- 页码：p.921-930
- 图表：illus., 1 table, 58 refs.
- 分类号：1400
- isbnNo：CN11-2708/P
摘要
This paper is to document the Late Quaternary structural deformation and geomorphic features along the Xiugou Basin segment.The authors identified a ca.50-km-long surface rupture zone produced by the most recent large seismic event(M 7.0),which most likely occurred in the northeast part of the Xiugou Basin in 1902.The length of this surface rupture zone is almost same order with the 40 km-long surface rupture zone produced by the 1963 Alake Lake M 7.0 Alake Lake earthquake.A long-term slip rate of 12.9±2.9 mm/a was estimated based on lateral offsets of terrace riser,it is close to the result estimated from the displaced fluvial fans(10.1±0.8 mm/a)in the west part of Xiugou Basin.The estimated slip rate along the Xiugou Basin segment is in the same range measured by GPS.