Self-Potential Studies in Volcanic Environments: A Cheap and Efficient Method for Multiscale Fluid-Flow Investigations

Figure 2

Self-potential (top) and soil temperature (bottom) maps of La Fossa cone overlain on the Digital Elevation Map (DEM) of the area. White dots represent the measurement points. Areas with steady hydrothermal activity are well delineated by self-potential maxima and correlated to high temperature anomalies inside the craters and along their limits. PN (Punte Nere), Pa (Palizzi), FV (Forgia Vecchia), PC (Pietre Cotte), and GC (Gran Cratere) craters are localized with black-dashed lines. Profile marked with two orange dots corresponds to the cross sections and transects of Figures 1 and 3. This figure has been modified from [63].