Hydrostratigraphic Rock Unit Groups 1:100,000 Ireland (ROI) ITM

This Hydrostratigraphic Rock Unit Groups map is a reclassification of the 1:100,000 Bedrock geology map, created by grouping Bedrock formations and members into 27 Rock Unit Group categories based on their hydrogeological properties and other factors.本水文地层岩石单元组（Hydrostratigraphic Rock Unit Groups）地图基于基岩地层组与段的水文地质属性及其他相关因素，将其归并为27个岩石单元组类别，是对1:10万比例尺基岩地质图的重新分类成果。