理塘—义敦断裂1∶5万活动断层填图数据库及防震减灾运用
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摘要
理塘—义敦断裂1∶5万活动断层填图数据库存储了大量数据,主要包括室内资料和野外调查数据,前者主要包括地理信息数据、地层数据、地震目录、遥感影像数据等;后者主要包括野外的各类点、地表破裂带、活断层线、古地震探槽、断错地貌测量等数据。本文利用Arc GIS将这些数据录入、编辑、分析和制图输出,初步构建了一个包含基础地理信息的活动断层填图数据库。该数据库不仅实现了地质数据的空间位置和属性特征的综合管理,而且从数据库中可以得到相关断裂的空间展布、运动学特征、古地震研究等资料。这些资料在共享的情况下,用户可以根据需要,绘制相应的专题图件,深入分析理塘县及甘孜地区的地震应急、古地震研究以及当地的防震减灾规划,特别是对于基础设施建设和生命线工程活动断层的避让带的确定提供参考依据。
Mapping database with 1 /50000 scale of Litang-yidun active fault includes a lot of field investigating results and the indoor studying materials. The indoor study materials include such data as geographic,strata information,earthquake catalog and remote sensing images. Field work data includes several kinds of points of field investigation,surface fracture belts,active fault belts,trench positions and data for paleo- seismic events,fault-scarps geomorphologic survey and so on. We build the mapping database of active faults by including indoor study and field investigation data and analyzing the output of some geology picture. This database not only integrates management for spatial positions of geology data and attributive characters but also include fault distributions,description of kinematic features of paleo-seismic research and so on. Customers can get relevant subject maps with the World Wide Web in share link condition. The database can be helpful to earthquake emergency response,paleoseismic research and program in the preventing against and mitigating earthquake disaster,especially to the design references to infrastructure construction and the lifeline engineering constructions in Litang and Ganzi areas.
Mapping database with 1 /50000 scale of Litang-yidun active fault includes a lot of field investigating results and the indoor studying materials. The indoor study materials include such data as geographic,strata information,earthquake catalog and remote sensing images. Field work data includes several kinds of points of field investigation,surface fracture belts,active fault belts,trench positions and data for paleo- seismic events,fault-scarps geomorphologic survey and so on. We build the mapping database of active faults by including indoor study and field investigation data and analyzing the output of some geology picture. This database not only integrates management for spatial positions of geology data and attributive characters but also include fault distributions,description of kinematic features of paleo-seismic research and so on. Customers can get relevant subject maps with the World Wide Web in share link condition. The database can be helpful to earthquake emergency response,paleoseismic research and program in the preventing against and mitigating earthquake disaster,especially to the design references to infrastructure construction and the lifeline engineering constructions in Litang and Ganzi areas.
引文
[1]徐锡伟,闻学泽,郑荣章,等.川滇地区活动块体最新构造变形样式及其动力来源[J].中国科学(D辑),2003,33(增刊):151-162.
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[6]汤国安,杨昕,等.地理信息系统空间分析实验教程[M].北京:科学出版社,2011.7]李陈侠,安艳芬,等.汶川Ms 8.0地震的地质科学考察数据库简介[J].地震地质,2008,30(3):804-810.
[8]王世元、黎大虎.基于Arc GIS平台的芦山地震房屋震害数据分析[J].四川地震,2014,(2):1-5.
[9]徐锡伟,于桂华,等.活断层地震地表破裂“避让带”宽度确定的依据与方法[J].地震地质,2002,24(4):470-483.
[2]徐锡伟,闻学泽,于贵华,等.川西理塘断裂带平均滑动速率、地震破裂分段与复发特征[J].中国科学(D辑),2005,35(6):540-551.
[3]孙成民,等.四川地震全纪录(上卷)[M].成都:四川人民出版社,2010.
[4]孙成民,等.四川地震全纪录(下卷)[M].成都:四川人民出版社,2010.
[5]周荣军,陈国星,李勇,等.四川西部理塘—巴塘地区的活动断裂与1989年巴塘6.7级震群发震构造研究[J].地震地质,2005,27(1):31-43.
[6]汤国安,杨昕,等.地理信息系统空间分析实验教程[M].北京:科学出版社,2011.7]李陈侠,安艳芬,等.汶川Ms 8.0地震的地质科学考察数据库简介[J].地震地质,2008,30(3):804-810.
[8]王世元、黎大虎.基于Arc GIS平台的芦山地震房屋震害数据分析[J].四川地震,2014,(2):1-5.
[9]徐锡伟,于桂华,等.活断层地震地表破裂“避让带”宽度确定的依据与方法[J].地震地质,2002,24(4):470-483.
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