A new case history of geothermal exploration in volcanic areas : the latera field (Northern Latium, Italy)

International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980.A new geothermal field, .of the water-dominated type, has recently been discovered near the western border of the Monti Volsini volcanic region, in correspondence to a young caldera (0.2 m.y.). This caldera is marked by a subcircular gravimetric minimum which interrupts a N-S elongated positive anomaly characterizing a horst-like block of the sedimentary substratum. This substratum underlies a more or less thin blanket of volcanics and is made up (from the top down) of: i) allochthonous flysch-facies units; ii) a mainly carbonate complex locally referred to as the «Tuscan nappe»; and iii) a schistose-quartzitic basement.