“…The 87 Sr/ 86 Sr of the major global rivers water ranges from 0.7089 to 0.7291 in which the Ganga river water is characterized by the highest Sr isotopic ratio (0.7291) whereas the Danube river water have lowest Sr isotope ratio (0.7089) (Goldstein and Jacobsen, 1987;Krishnaswami et al, 1992;Palmer and Edmond, 1992;Pande et al, 1994;Trivedi et al, 1995;Yang et al, 1996;Gaillardet et al, 1999;Millot et al, 2003;Tipper et al, 2006;Moon et al, 2007Moon et al, , 2009Pattanaik et al, 2007;Xu and Marcantonio, 2007;Peucker-Ehrenbrink et al, 2010;Noh et al, 2009). The rivers like Amazon, Orinoco etc.…”