Synthesis of the geological constitution of Catalonia through the cartographic representation of lithostratigraphic geological units, major structural elements (unconformities, faults and folds) and types of contact between units. The situation of the soundings carried out for the exploration of hydrocarbons is also included.

Delimitation of the hidrogeological units of Catalonia (aquifers, aquitards, aquicludes and aquifer systems), i.e. those parts of the lithosphere with distinctive parameters for water storage and conduction. The data model of this geoinformation is based on the technical specifications of geological data of the INSPIRE Directive (2007/2/CE).

Synthesis of the hydrogeological macrounits into which the territory can be divided, called hydrogeological areas, and classification of the formations of the Geological Map of Catalonia 1:250,000 according to their lithological characteristics, type of porosity and consolidation.