G3Dv3.1 0204, isohypses of base Fm of Lillo and Powderlee

This layer gives the isohypses of the base of the formations of Lillo and Poederlee, 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.本图层展示了利洛地层组与波德勒利地层组底面的等高线（isohypses），其定义依据佛兰德斯地区地下地质三维模型（Geological 3D model）3.1版。该地质三维模型以VLAKO为项目名称，依托佛兰德斯政府与VITO签订的管理协议框架编制完成，编制主体为佛兰德斯环境规划局。