Map based index (GeoIndex) digital geological map availability 1:25k

This layer of the GeoIndex shows the location of available 1:25000 scale digital geological maps within Great Britain. The Digital Geological Map of Great Britain project (DiGMapGB) has prepared 1:625 000, 1:250 000 and 1:50 000 scale datasets for England, Wales and Scotland. The datasets themselves are available as vector data in a variety of formats in which they are structured into themes primarily for use in geographical information systems (GIS) where they can be integrated with other types of spatial data for analysis and problem solving in many earth-science-related issues. The DiGMapGB-10 dataset is as yet incomplete, current work is concentrated on extending the geographical cover, especially to cover high priority urban areas.本地理索引（GeoIndex）图层展示了大不列颠境内可获取的1:25000比例尺数字地质图的分布位置。英国数字地质图项目（Digital Geological Map of Great Britain，缩写DiGMapGB）已为英格兰、威尔士与苏格兰制备了比例尺分别为1:625000、1:250000及1:50000的数据集。该系列数据集以多种格式的矢量数据形式对外提供，其按专题要素进行组织，主要供地理信息系统（Geographical Information Systems，缩写GIS）使用；在GIS环境中，这些数据集可与其他类型的空间数据相整合，用于诸多地球科学相关议题的分析与问题求解。目前DiGMapGB-10数据集尚未完成，当前工作重点在于拓展其地理覆盖范围，尤其优先覆盖高优先级城区。