HCOV_1100, Thickness of the Cretaceous Aquifer System

Flanders is made up of a variety of aquifers (sand, gravel, chalk, solid rock,...) and regionally occurring non-aquifers (e.g. clay). The sequence of these aquifers and aquitards has its own coding in Flanders: the Hydrogeological Coding of the Underground of Flanders (HCOV coding). The HCOV coding is made up of hydrogeological main, sub- and basic units. The main unit groups a sequence of geological layers that have the same hydrogeological properties and thus form one whole. HCOV_1100 (Cray Aquifer System) includes the Houthem Formation, the chalk formations of Maastricht, Gulpen, Vaals and Aachen, the Turoonmergels on the Massif of Brabant and the geological layers of the Wealdian. The dataset ‘HCOV_1100, thickness of the Cretaceous Aquifer system’ shows the thickness of this hydrogeological layer.hydrogeological layer in a grid per grid cell.