G3Dv3.1 0207, isohypses from base Fm van Diest and Bolderberg in the Roerdalslenk

This layer gives the isohypses of the basis of the formations of Diest and Bolderberg, as defined in the Geological 3D model of the Flemish subsurface - version 3.1. The Geological 3D model was drawn up in the framework of the management agreement of the Flemish government with VITO, under the name VLAKO, on behalf of the Flemish Environmental Planning Bureau.本图层展示了弗拉芒地下区域地质三维模型（Geological 3D model）版本3.1中所定义的迪斯特组与博尔德贝格组地层基底的等高程等值线（isohypses）。该地质三维模型由弗拉芒环境规划局代表弗拉芒政府，依托弗拉芒政府与VITO签订的管理协议，以VLAKO为项目名称编制完成。