基于GIS的中国区域地壳稳定性评价
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摘要
在上世纪90年代杜东菊等人编制的“中国区域稳定工程地质图”的基础上,开发了中国区域地壳稳定性数据库,数据库存入了历史地震、活动断裂、地壳形变、活火山等大量内动力地质作用的信息。介绍了该数据库开发的方法,提出了加权信息量法评价模型,在GIS数据库平台上实现了用该模型对中国区域地壳稳定性进行评价。根据评价结果,按稳定、基本稳定、次不稳定、不稳定4个级别对中国陆域范围进行了地壳稳定性分区,作出了分区图,分区结果与实际吻合。
In the 1990s,DU Dongju et al compiled “Engineering Geological Map of Regional Stability of China”. the database of regional crustal stability of China is developed based on the map. The database saved large amount of crustal activating in formation about historic earthquakes, active faults, crustal deformation and volcano activity etc. The method of the database developing is introduced, and the weighted information computation model is applied to the database to assess the regional crustal stability of China. According to the results, zonation map is automatically created by GIS system as four degrees of stable,general-stable,general-unstable and unstable, which indicates that the zonation is in accordance with the practical situation.
In the 1990s,DU Dongju et al compiled “Engineering Geological Map of Regional Stability of China”. the database of regional crustal stability of China is developed based on the map. The database saved large amount of crustal activating in formation about historic earthquakes, active faults, crustal deformation and volcano activity etc. The method of the database developing is introduced, and the weighted information computation model is applied to the database to assess the regional crustal stability of China. According to the results, zonation map is automatically created by GIS system as four degrees of stable,general-stable,general-unstable and unstable, which indicates that the zonation is in accordance with the practical situation.
引文
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[2]杜东菊,李同录.中国大陆区域稳定工程地质分区与评价[A].见:国家纪委国土司,地矿部科技司编.三十届国际地质大会地质科学研究论文集[C].北京:中国经济出版社,1996,499-510.
[3]李同录.长江三峡区域地壳稳定性评价[J].西安地质学院学报,1991,13(3):54-60.
[4]彭建兵.区域稳定性的神经网络分区评价[J].工程地质学报,2002,10(10):118-123.
[5]赵鹏大,胡旺亮,李紫金.矿床统计预测[M].北京:地质出版社,1983.
[6]王世称,成秋明,范继璋.金矿资源综合信息评价方法[M].长春:吉林科学技术出版社,1990.
[7]毕海良.应用信息量法评价西宁东川丘陵斜坡的稳定性[J].青海环境,1999,9(1):31-34.
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