RESUMO
Boron concentrations in ground water change locality in Kerbla - Nejaf area [20/localities] because the difference of sedimentary facies sequence of the clay lenses in horizontal and vertical direction and by the effect of time periods between rainy time, so this lead to the difference in Boron concentration in ground water with time [January - June, 1996]. The average of Boron rates in ground water in selected localities with time is 3 mlg/L and this average is more than the overage of Boron sediment filteration of the same localities [2.6 mlg/L]. The indication f Boron distribution with time changes especially in time of watering effect as human activities as well as the number of rainy days. The results show that Boron during water shortage and not watering less than Boron in water increasing period and watering. Two experiments were done to represented the natural conditions of the area by using saline wells water to represent watering case, and the distal water to represent rain case. The result showed that increasing of Boron in sediments filtration increases with salinity of sedrments fasaes as well the colour of this facies which showed sedimentary environment and the propability of Boron accumulation in grey claylenses