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

Table 3

Averaged concentrations of chemical components and ionic ratios in the Jurassic (Arad Group) interval. Cl^-/Br^- are in weight ratio; all other ratios are based on meq/l.

Parameter	Above Rosh Pinna shales (6 samples); 1784-1775 m	Below Rosh Pinna shales (8 samples); 3468-3310 m
Ca^2+ (mg/l)	617	24538
Mg^2+ (mg/l)	84.3	2508
Na^+ (mg/l)	10007	33246
K^+ (mg/l)	143.5	3527
Cl^- (mg/l)	16110	104583
SO4^2- (mg/l)	273	460
HCO3^- (mg/l)	483
SiO2 (mg/l)	2.8	30
	0.8	0.5
	0.18	0.2
	2.3	125
	74	50

; .