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Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading
Published on: March 6, 2014
Geochronology of lake sediments using (210)Pb with double energetic window method by LSC: an application to Lake Van
F Barlas Simsek1, M N Cagatay2
1Istanbul Technical University, Eurasia Institute of Earth Sciences, Maslak, Istanbul, Turkey; Turkish Atomic Energy Authority, Çekmece Nuclear Research and Training Center, 34303 İstanbul, Turkey.
Abstract:
In this study the age and sediment accumulation rates of the lake sediment were calculated by using the (210)Pb concentrations through the sediment core. The specific activity of (210)Pb for each sediment section was determined by LSC with double energetic window method which relies on the direct determination of (210)Pb without waiting for the in growth of (210)Po from (210)Pb. For the successful determination of this radionuclide two counting windows were optimized to eliminate the overlapping of the beta spectra of (210)Pb and (210)Bi.

