Dating of hot springs at Attri, Tarabalo and Athmalik sites in Odisha, India using radiocarbon technique

摘要

In this study environmental radioisotopes of water (H-3 and C-14) were used to determine the residence time of thermal waters. The temperature of geothermal waters was found to be uniform (57.6 degrees C +/- 0.75 degrees C) with similar field alkalinity and pH values. The delta C-13 values of thermal water ranged between -21.3 and -18.75 parts per thousand, which clearly reflect no/minimum contribution of carbonate minerals to the system. Environmental tritium concentration was found to be very low in these thermal waters indicating insignificant recharge from modern sources. The Pearson modelled C-14 ages were found to vary from 4964 to 17,714 years.