The Los Humeros Superhot Geothermal Resource in Mexico: Resistivity Survey (TEM and MT); Data Acquisition, Processing and Inversion - Geological Significance

A joint geothermal project of a European and Mexican consortium began in late 2016 with the purpose to develop geothermal energy in the easternmost region of the Trans-Mexican Volcanic Belt. Two sites that belong to the Comisión Federal de Electricidad (CFE) have been investigated. One of the them, Los Humeros, is the subject of our study. In order to further explore the Los Humerossuperhot geothermal resource, extensive geological, geochemical and geophysical studies were carried out. Previously existingregional gravity and magnetic maps were studied, and gravity was measured on a dense grid. Some 23 broadband and 22 short period seismic stations were set up which collected data for one year. Finally, 122 co-located MT and TEM soundings were made in 2017 and 2018 through a joint effort by the European and Mexican partners. Their location was based on the interpretation of already existing resistivity data. The TEM and MT data were acquired with a TerraTEM equipment and Metronix equipment, respectively. The b