A comprehensive study on sedimentation rate and sediment age of Satopanth Tal Garhwal Himalaya, using ²¹⁰Pb and ¹³⁷Cs techniques

Radionuclides dating have been applied in the chronological series of sediment core recovered from Satopanth Tal to estimate the sedimentation rate and its age. Several models include CRS and slope method, and ¹³⁷Cs peak methods have been adopted. The depth concentration of ²¹⁰Pb_exc in the core determines the various parameters like sedimentation rate, geochronology, inventory, and mass fluxes. The CRS model and slope method infer the sediments deposited at a rate of 0.79 ± 0.04 cm/year dated to 120 years. Distinct peaks on 1963 and 1986AD, the ¹³⁷Cs record estimate the mean sedimentation rate is 0.745 ± 0.03 cm/year respectively and dated to 77 years. (author)