Fig. 1From: Classification of geothermal systems in Madagascara Simplified geological map of Madagascar modified from Roig et al. (2012), Tucker et al. (2014), showing the location of hot springs and the geothermal areas of interest (Besairie 1959; Gunnlaugsson et al. 1981). b Average crustal thickness beneath sedimentary basins and the Precambrian shield in the geothermal areas of interest (Rindraharisaona et al. 2013; Andriampenomanana et al. 2017; Pratt et al. 2017)Back to article page