The Hydrogeochemical Stratigraphy of Brines and Its Implications on Water Management in the Central Jordan-Dead Sea Rift Valley, Israel

Table 4

Comparison of chemical compositions from the Upper Jurassic to Lower Cretaceous beds with groundwater from the adjacent Mehola 5 borehole.

Parameter	Mehola 5	Swab ER58	Swab ER51
	Lower Cretaceous, 265 m	Lower Cretaceous, 1228-1232 m	Up. Jurassic zone, 1775-1784 m
Cl^- (mg/l)	2698	7383	4071
SO4^2- (mg/l)	219	652	471
HCO3^- (mg/l)	220	238	197
SiO2 (mg/l)		46	58
Na/Cl	0.77	0.8	0.7
	0.32	0.4	0.4
	2.02	2.9	3.0
	112	98	67

; .