Brussels formation – glass conite

This layer shows the shallow appearance (up to 50 m below ground level) of the relevant mineral geological unit. This layer is a processing of the grid layer of the top of this geological unit, which determines G3Dv3.1 (Deckers et al., 2019) for the geological 3D model. The quality of minerals may vary within a geological unit. The shallow appearance in a given place is therefore not a guarantee that a good quality of the mineral in question is found on that site.本图层展示了相关矿产地质单元地表以下50米深度范围内的浅部形态。本图层为遵循地质三维模型所采用的G3Dv3.1规范（Deckers等，2019），对该地质单元顶面网格图层进行处理所得的成果。同一地质单元内部的矿产品质可能存在差异，因此某一地点的浅部形态，并不能保证该点位赋存符合要求的优质矿产。