TDEM Method for Hydrothermal Water Prospection

TDEM prospection allowed to reconstruct tectonic setting of a thermal basin, in Viterbo (Central Italy). A productive well was located at the intersection of two faults evidenced by geophysical data, reaching a depth of 127 m. and providing thermal water (58°C) with high productivity (spontaneous discharge 10 L/Sec). Interesting results were achieved by using offset-mode soundings, so minimizing costs of geophysical prospection. Also preliminary attempts with grounded system were promising.