区域地质图数据库建设中地质信息处理分析

The Geological Information Processing during the Construction of the Regional Geological Map Database

地质图数据库建设主要包括图形矢量化以及对图形赋予地质属性信息两方面内容,其中地质属性数据是数据库的灵魂和核心。地质信息采集及数据处理是区域地质图数据库建设的关键,文章主要就建库过程中地质资料预处理、地质图层划分、地质信息采集及处理进行了探讨。

Results of the 1：50000 regional geological surveys are high-degree processed geological information. This basic and public geological information have made a profound influence on the economic and social developments of China. The construction of the 1∶50 000 regional geological map databases began in 2000. Until 2014, 116 standard sheets of early paper geological maps had been vectorized and imported into database. The construction of the regional geological map database generally includes images vectorization and attributes valuation, and the geological attributes are the core of the database. The key to the construction of the regional geological map database is the geological data acquisition and processing. This paper discussed the preprocessing of geological data and the division of geological map, as well as mainly analyzed certain problems within the geological data acquisition and processing.