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Geochronology of lake sediments using 210Pb with double energetic window method by LSC: An application to Lake Van
Institution:1. Istanbul Technical University, Eurasia Institute of Earth Sciences, Maslak, Istanbul, Turkey;2. Turkish Atomic Energy Authority, Çekmece Nuclear Research and Training Center, 34303 ?stanbul, Turkey;3. ?stanbul Technical University, EMCOL, Faculty of Mining, Maslak, ?stanbul, Turkey;1. University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovi?a 6, 21000 Novi Sad, Serbia;2. University of Novi Sad, Faculty of Sciences, Department of Physics, Trg Dositeja Obradovi?a 3, 21000 Novi Sad, Serbia;3. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia;2. Fundação Universidade Federal de Rondônia (UNIR), Av. Presidente Dutra No. 2965, CEP 78900-500 Porto Velho, Rondônia, Brasil;1. Geoecology, Department of Environmental Sciences, University of Basel, Klingelbergstrasse 27, 4056, Basel, Switzerland;2. Department of Archaeology and Ancient History, Uppsala University, P.O. Box 256, 75105, Uppsala, Sweden;3. York Institute for Tropical Ecosystems, Department of Environment and Geography, University of York, Heslington, York, North Yorkshire, YO10 5NG, United Kingdom;4. Department of Watershed Sciences, Utah State University, Logan, UT, 84321, USA;5. Queen''s University Belfast, School of Natural and Built Environment, Belfast, BT7 1NN, Northern Ireland, UK;6. Department of Geography, University of Wisconsin-Madison, 550 N Park St, Madison, WI, 53706, USA;7. Jackson School of Geosciences, University of Texas at Austin, Austin, TX, USA;8. University of Auckland, School of Environment, Science Centre, Building 302, 23Symonds Street, Auckland Central, New Zealand;9. Department of Environment and Geography, University of York, Heslington, York, North Yorkshire, YO10 5NG, United Kingdom;10. Global Geostrategies Network, Ngiri Campsite, Seronera, Tanzania
Abstract:In this study the age and sediment accumulation rates of the lake sediment were calculated by using the 210Pb concentrations through the sediment core. The specific activity of 210Pb for each sediment section was determined by LSC with double energetic window method which relies on the direct determination of 210Pb without waiting for the in growth of 210Po from 210Pb. For the successful determination of this radionuclide two counting windows were optimized to eliminate the overlapping of the beta spectra of 210Pb and 210Bi.
Keywords:CRS model  Liquid scintillation counting  Accumulation rates
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