科研之友
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摘要
Surface ruptures found east of the high peak of Bukadaban that formed during the 2001 Kunlun earthquake reveal a minor northeast-southwest-trending graben, across which oblique approximately east-west extension occurred. Scarps along the southeast flank of the graben indicate vertical components of slip of 3-4 m, and left steps in the trace suggest a component of left-lateral slip. Scarps on the northwest flank show vertical components of only similar to 1: 5 m; east-west-trending ridges in the flanking footwall and hanging wall imply north-south shortening and therefore also a component of left-lateral slip. These observations corroborate the inference made by others that Bukadaban, though > 6000 m high, lies within or adjacent to an active pull-apart basin between two major strike-slip segments oriented similar to N100 degrees E.
- 出版日期2016-12
- 单位中国科学院地球环境研究所; 中国科学院大学
