G3Dv3.1 030303, prevention of Ld van Terhagen from the Fm van Boom

This layer gives the occurrence limits of the Lid van Terhagen, 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.本图层划定了特哈根地层（Lid van Terhagen）的赋存边界，该边界定义于版本3.1的弗拉芒地下地质三维模型中。此地质三维模型系在弗拉芒政府与VITO签署的管理协议框架下，以VLAKO为项目名称，代表弗拉芒环境规划局编制完成。