博洛科努断裂西北段古地震形变带初步研究

英文篇名：A PRELIMINARY STUDY ON THE PALEOEARTHQUAKE RUPTURE BELT ON THE NORTHWESTERN SECTION OF BOLOHKENU FAULT
中文刊名：内陆地震
英文刊名：INLAND EARTHQUAKE
作者：沈军 ; 杨小平
英文作者：Shen Jun 1) \ Yang Xiaoping 2) 1) (Institute of Natural Calamity proof of Xinjiang Urumqi 830011) 2) (Geological Institute of SSB\ Beijing\ 100029)
中文关键词：古地震 ; 形变带 ; 博洛科努断裂
英文关键词：Palaeoearthquake\ Deformation belt\ Bolohkenu fault
出版日期：1998-08-15
机构：新疆防御自然灾害研究所!乌鲁木齐8300112,中国地震局地质研究所!北京100029
年：1998
期：03
出版单位：内陆地震

摘要

介绍了博洛科努断裂西北段阿拉山口至精河县城以南的古地震形变带的几何特征、形变方式和变形幅度，并讨论了最后一次地震事件的震级。认为该形变带为右旋走滑性质，最后一次地震事件的水平位移可能为２．５ｍ，垂直位移为０．９～１．８ｍ，震级估计为７．５～７．８级
The Bolohkenu fault is an important tectonic zone.Its northwestern section between Alashankou and Southern Jinhe is a nearly 100 km long paleoearthquake deformation belt,the geometric character,deformation pattern and range of which are studied in this paper.And the magnitude of last event on it is discussed.It is thought that this deformation belt has a right lateral,strike slip feature, and has displaced by as much as about 2.5 m horizontally and 0.9~1.8 m vertically in the last event,and that the last event is estimated to has the magnitued of 7.5~7.8.

引文

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