The Cartographic and Geological Institute of Catalonia (ICGC) has published a map that highlights the location, origin, and characteristics of the geothermal resources in the region of Catalonia, Spain. The map can be downloaded as a document from this link. The ICGC has also provided an interactive map on the project page.
The map documented as “Geothermal Resources of Deep Origin in Catalonia (RGOPCat): synthesis of their potential” is the culminating output of the “GeoEnergia-GP (Deep Geothermal)” project of the ICGC. The initiative to measure subsoil temperatures in the city of Tarragonia had been a part of this effort, on top of consolidating data from previous studies.
The map categorizes geothermal resources into four classes of utilization based on temperatures and chemistry.
Class A resources (30 to 60 degrees Celsius) can be used for spas, agriculture or aquaculture, or urban air conditioning;
Class B resources (60 to 100 degrees Celsius) can be used for urban and industrial heating and air conditioning networks;
Class C resources (> 100 degrees Celsius) can be used for electricity generation;
Class D resources have the potential for geothermal lithium extraction.
Screenshot of ICGC Interactive Map showing isotherms at 3 km depth overlaid on a geologic map of Catalonia, Spain (source: ICGC)
