This 1:1,000,000 scale map shows the Plio-Pleistocene to contemporary deposits classified in 10 geochronological intervals and separated according to their genesis. It also includes glacial, volcanic, karstic, aeolian, coastal, edaphic, palaeontological and prehistoric phenomena. It has been carried out by the Geological Survey of Spain (then called the GeoMining Technological Institute of Spain) with the collaboration of experts mainly from the academic world and public research centres. It covers the entire national territory, including the archipelagos, with the exception of Melilla.
The purpose of this map is twofold. On the one hand, to respond to the needs of scientists and planners who require information on aspects of the most recent geology. On the other hand, to reveal and facilitate a national vision of the knowledge of the Quaternary in Spain, a system that is insufficiently known.
Instituto Geológico y Minero de España (IGME-CSIC)
The map was drawn up from the compilation of cartographic information at scales 1:25,000, 1:50,000 and 1:200,000 produced by the IGME, unpublished cartography, Doctoral Theses, Dissertations and other published works. Subsequently, the phenomena to be included in the cartography were established and the legend of surface formations was drawn up. Next, the processes of synthesis, reclassification, generalisation and exaggeration were carried out for the final production of the map. The digitisation process was carried out in 1991 from the printing plates and the definitive normalisation and generation of symbolised files (.lyr) and cartography, in version 8.3 of ArcGis, in 2003.