Click on image to view larger version.
Fig. 3. Model-predicted (A) Cl– (B) matric potential (C) 
18O, and (D) D profiles at various simulation times since the initiation of drying conditions. Amargosa Desert Research Site data are shown for comparison. The matric potential data in (B) are calculated from water and osmotic potential measurements. Isotopic values at 72.5 m (C and D) are suspect due to a crack in the paraffin covering of the sample and anomalously low water content noted at the time of analysis, both suggesting evaporative loss of water during storage (Prudic et al., 1997).
