Fig. 8From: Response of a hydrothermal system to escalating phreatic unrest: the case of Turrialba and Irazú in Costa Rica (2007–2012)Cation mixing plots for the thermal spring waters and Irazú–Turrialba lake waters: a Cl vs Ca; b Cl vs Mg; c Cl vs Na; d Cl vs K. Dotted lines illustrate the possible trends corresponding to dilution with meteoric waters (except for Santa Teresita)Back to article page