Abstract: This paper briefly describes the peculiar geologic background of Dushanzi area,such as the newest erogenic movement,distinctive materials produced by mud eruption,broad gobi plain and particular deposits of depression. The geologic factors related to geologic background,including the foundation soil,topography,fault,colapse and landslide are also characterized by their regional particularity. Five earthquake hazards zones have been classified as A,B,G,D and E,on the basis of the analysis of seismic Vulnerability of geologic factors. According to the differences of ground effects in each zone,it is suggested that land utilization should avoid the southern zone but dwell on the northern zone,i. e. avoid the mud volcano and mountain front depression,but dwell on the gobi plain.

Key words: Dushanzi, Vulnerability analysis, Geologic microzonation of earthquake Hazards, Mud volcano

摘要： 本文扼要介绍了独山子地区特有的地质背景——最新的造山运动、独特的泥火山喷出物、广阔的戈壁平原和特殊的洼地沉积。与地质背景有关的一系列地质因素地基土、地形、断层、崩塌、滑坡等也具有独特的区域特征。地质因素地震易损性分析结果,取得震害地质A、B、C、D、E五级分区。根据不同分区地震地面效应强弱程度的差异,建议在土地利用上应避南就北,即避开泥火山和山前洼地而就戈壁平原。

关键词: 独山子, 易损性分析, 震害地质区划, 泥火山