Fig. 6From: Response of a hydrothermal system to escalating phreatic unrest: the case of Turrialba and Irazú in Costa Rica (2007–2012)Plots of δD vs elevation (a) and longitude (b) for the thermal springs and Irazú–Turrialba lake waters compared with meteoric waters for Irazú (MWI) and Turrialba (MWT). In b the gray dotted fields illustrate the bulk of Irazú and Turrialba meteoric water samplesBack to article page