Determination of the latest sediment accumulation rates and pattern by performing Pb-210 models and Cs-137 technique in the Lake Bafa, Mugla, Turkey
| Autor: | F. E. Ozel, M. Eftelioglu, I. Sert, Günseli Yaprak |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Shore
Hydrology Radionuclide geography geography.geographical_feature_category Chemistry Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Pellets Sediment 010501 environmental sciences Sedimentation 010403 inorganic & nuclear chemistry Residence time (fluid dynamics) 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry Nuclear Energy and Engineering Radiology Nuclear Medicine and imaging Spectroscopy 0105 earth and related environmental sciences Chronology |
| Popis: | The sediment chronology was determined using Lead-210 (Pb-210) and Cesium-137 (Cs-137) dating method. Profile distributions of Polonium-210 (Po-210) and Pb-210 were evaluated with regarding to sediment porosity, core location, bottom currents and prevalent winds. Max. Po-210 and Pb-210 activity concentrations are found as 193.83 +/- 4.43 and 187.84 +/- 4.84 Bq kg(-1) respectively. According to vertical radionuclide (Po-210/Pb-210) ratios, sediments especially in east part of the lake are rich with respect to the fecal pellets. Residence time of the Pb-210 is calculated as 1.9 months in the lake. Average sedimentation rate (0.359 +/- 0.012 cm year(-1)) in central area is higher than the near shore (0.137 +/- 0.006 cm year(-1)) one in Lake Bafa. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|