基于数据库建设的区域地质图编制中的有关问题探讨

Discussion on Related Problems about the Regional Geological Map Editing on the Basis of Database Construction

随着数据库技术在地质矿产调查中的成熟和应用,不同比例尺的区域地质图数据库的建设已成为地质矿产调查成果的重要内容,为满足数据库建设的要求,区域地质矿产图件的编制除应严格执行相应的国家标准、地质行业标准及相关规范外,还有适合于地质图空间数据库建库的一些特点。区域地质图的编制要考虑将各类地质要素分解到各个不同的图层中,并能进行查询和检索。提出区域地质编图中以线要素表示的特殊岩性层、以点要素表示的捕虏体及包体等,在建库中不能分解到相应的图层,在地质图上应以面状体适当夸大表示;基本无地质内容的推测断层、同位素年龄样、地质钻孔等,在数据库属性库多数为空白,在地质图上则应增加地质内容或简化图面。

With the development and application of database technology in geological and mineral survey, different scales of the regional geological map database construction has become an important content in outcome of geological and mineral survey. Map editing of regional geological map should strictly implement national standards, standards of geological industry and relative specification, also adapt some characteristics of geological spatial database construction. Different geological elements had been splintered into different layers. It has the function of query and retrieval.