摘要
文章以榆关镇幅为例，阐述了ＧＩＳ在１∶５万区调中的应用问题。物化探遥感资料按地质需求由计算机处理成各种图件，地形图则划分图层并赋予其属性，建立地形资料ＧＩＳ系统；野外工作采用手工记录，室内微机处理的工作方式；野外连图采用手工，而后清绘，通过扫描输入微机。按地质体分布、构造等建立图层并用地理编码将其与数据库相连，叠加、编排图层，编制地质图，最终建立１∶５万区调ＧＩＳ系统。
In this paper, GIS application is discussed in regional geological survey of 1∶ 50000 scale based on the Yuguanzheng mapping project. According to the need of geology, geophysical, geochemical data and remote sensing information can be treated into various maps by computer. Digital topographic map is divided into several map layers which are vested with their properties, so that GIS package of topographic data is established. Geological information is recorded by hand in field work and inputted computer indoor. A map can be drawn by hand in the field, then its clean copy will be done and inputted computer by scanning. According to the distribution, structure etc. of geological bady, the geological map layers that can be linked to database by geocodes are built up. A geological map can be drawn up by piling up the layers that embody geological information. Finally, a GIS package of regional survey of 1∶50000 scale is established.
出处
《广西地质》
1997年第4期87-90,104,共5页
Guangxi Geology
