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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

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

Fig. 5

δ18O vs δD for the thermal springs and Irazú–Turrialba lake waters compared with meteoric waters (GMWL global meteoric water line, IMWL Irazú meteoric water line, TMWL Turrialba meteoric water line) and fumaroles (AQ Arbol Quemado). Values for the Irazú fumarole are out of scale (δ18O = − 19.9 ‰, δD = − 122 ‰). The “andesitic water” end-member (AW) is also illustrated

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