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Earth, Planets and Space
Fig. 11 | Earth, Planets and Space

Fig. 11

From: Response of a hydrothermal system to escalating phreatic unrest: the case of Turrialba and Irazú in Costa Rica (2007–2012)

Fig. 11

Temperature vs Saturation Index (S.I.) for various minerals in the studied thermal springs, and corresponding fields of precipitation and solution related to the equilibrium line (S.I. = 0). Anhydrite is used as a geothermometric indicator of different equilibrium temperature ranges for the thermal springs; for San Cayetano (a) , Ojo de Agua (b), Hervideros de Buenos Aires (c), Bajo Las Peñas (d) and Santa Teresita (e). We use the tangency area between the anhydrite and equilibrium lines to estimate a temperature range

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