H3O-Roerdalslenk

H3O-Roerdalslenk is a (hydro)geological 3-dimensional model of the subsurface of the Roerdalslenk. The cross-border nature of modelling is central. The Cenozoic (Quartaire, Neogene and Paleogene) deposits were modelled in Dutch Limburg, southeastern North Brabant and the Flemish part of the Roerdalslenk. The H3O project resulted in one geological and one hydrogeological model of the Cenozoic and the fractures in the project area were recorded in the form of 3D fracture surfaces. Both in these models and between these fracture surfaces, no connection problems occur along the Belgian-Dutch border. In addition, a correlation between Belgian and Dutch lithostratigraphic units was carried out for the (hydro) geological modelling of the subsurface. Due to these correlations, the geological and hydrogeological interpretations and models form a consistent whole. The results of H3O-Roerdalslenk were delivered in both the Dutch and the Belgian coordinate system and reference level. For Flanders, this is the reference system Belge Lambert 1972 and TAW (Second General Waterpassing) and for the Netherlands in RD and NAP (Nieuw Amsterdams Peil). The H3O-Roerdalslenk project was launched in 2012 and published in July 2014. This study was carried out by TNO, Geological Service Netherlands and VITO in collaboration with the Belgian Geological Service.