论文部分内容阅读
汶川MS8.0地震科学考察数据库存储了大量的野外调查数据,主要包括野外地质观测点、地表破裂带、震区第四纪断层的展布及其活动性地质观测点、古地震探槽、断错地貌测量等数据,以及搜集来的地层数据、汶川地震及其余震、重新定位余震、历史强震等数据。文中利用ArcGis将这些野外数据进行了录入、编辑、分析和制图输出,初步构建了一个包含基础地震地质信息的汶川地震科学考察数据库,实现了数据的空间位置和属性特征的综合管理,可根据需要对相关专题的数据进行查询、分析和处理,并绘制了汶川地震构造图及地表破裂分布图,为灾后重建避让带的确定提供了依据,为进一步构建汶川地震地理信息系统奠定了数据基础。
Wenchuan MS8.0 Earthquake Scientific Investigation Database has stored a large number of field survey data, including the field geological observation points, surface rupture zone, quaternary fault zone in the earthquake zone and its active geological observation points, paleoseismic trench, broken Such as the data of the wrong landform survey and the data collected from the strata, the Wenchuan earthquake and its aftershocks, the repositioning of aftershocks and historical strong earthquakes. In this paper, ArcGIS was used to input, edit, analyze and map the field data. A preliminary scientific investigation database of Wenchuan earthquake containing basic seismic geological information was constructed to realize the integrated management of the spatial location and attribute features of the data. The data of related topics are queried, analyzed and processed, and the tectonic map of Wenchuan earthquake and the surface rupture distribution map are drawn, which provide the basis for the determination of the evacuation zone after the disaster so as to lay the data foundation for further building the Geographic Information System of Wenchuan Earthquake.