G3Dv3.1 0304, isopachs Fm van Bilzen

This layer gives the isopachen of the Bilzen Formation of the Geological 3D model of Flanders – version 3.1. The Geological 3D model was drawn up under the Flemish Government’s management agreement with VITO, known as VLAKO, on behalf of the Flemish Planning Bureau for Environment本图层呈现佛兰德斯地质三维模型（3.1版本）中比尔岑组（Bilzen Formation）的等厚线。该地质三维模型系受佛兰德斯环境规划局委托，依据弗拉芒政府与VITO签订的名为VLAKO的管理协议编制而成。