Fig. 4. Sulfate versus chloride concentration in the northern part of the Lower Jordan River and in adjacent sources. Three groups of waters are represented: (i) river water (arrow A and B indicates down-river direction), (ii) sources that represent potential end-members, and (iii) results of the mass-balance calculation [named "subsurface"] representing the chemical composition of the subsurface contribution along N2. Note that "western inflows" are Sites 13, 14, 17, and 24, "fishponds" are Sites 19 and 26, "drainages" are Sites 5 and 6 and Saline Yarmouk is Site 11 (Fig. 1, Table 1). The dates of the measurement campaigns are marked near the "subsurface" results.