数字地质调查系统空间数据库建库技术方法应用——以1:5万瑶里幅地质图空间数据库制作为例

Application of spatial database-building technology in digital geological survey system:A case construction of Yaoli 1:50 000 geological map database

通过1∶5万瑶里幅地质图空间数据库建库实践,从基本要素类、综合要素类、对象类及独立要素类等方面系统阐述了数字地质调查系统地质图空间数据库制作方法流程。数字地质调查系统空间数据库建库通过野外手图数据库、野外总图数据库、实际材料图数据库、剖面数据库不同阶段数据互通、继承、提取和凝练而形成。对数据库提交有关技术要求及组织目录结构进行了说明,数字地质调查系统空间数据库提交除成果地质图数据库外,还必须提交不同工作阶段形成的各类原始资料数据库,增强了数据库的信息量和使用价值。数字地质调查系统提供了数据检索功能,能检索多个图幅下的地质图空间数据库成果数据。

Through a case construction of Yaoli 1 ： 50 000 geological map database and in lights of essential elements, integrated elements, objects and independent elements, the authors depicted in details the construction method and flow sheet of spatial database in digital geological survey system. Through data interchange, inheritance, extraction and concise of field map database, field assembly map database, the factual data map database, profile database, the authors introduced the technical requirements and organization directory structure of the database. The submission of the spatial database included final geological map database and the original data of different stages, which strengthened the information content and the service value. Digital geological survey system provided data retrieval function, which could retrieve the data from several maps.