Figure 2.

(Color) Chemical evolution of dilute calcium chloride (synthetic Topopah Spring tuff porewater – Ref. 5), Na-bicarbonate (synthetic J-13 groundwater – Ref. 5), and sulfate (synthetic Topopah Spring tuff porewater, this study) waters upon evaporation.

Alai et al. Geochemical Transactions 2005 6:31   doi:10.1186/1467-4866-6-31