Abstract (Geochronology of Middle and Late Pleistocene terraces from Tagus river in Toledo, Spain): We present the results of the quartz-OSL and post-IR IRSL dating of different terrace levels located in the vicinity of Toledo (Spain)....
moreAbstract (Geochronology of Middle and Late Pleistocene terraces from Tagus river in Toledo, Spain): We present the results of the quartz-OSL and post-IR IRSL dating of different terrace levels located in the vicinity of Toledo (Spain). The results obtained for the upper terraces have not been accurate due to the high environmental radiation and saturation of the samples. However, those obtained from +25-30 m terrace and lower terrace levels, indicate their development between the Marine isotopic stages OIS 9 to OIS 2. Fluvial terrace sedimentation took mainly place during warm isotopic stages (MIS 9, MIS7, MIS5). On the contrary a large phase of valley infilling by lateral alluvial deposits is identified to the end of the MIS5 extending during the following MIS 4 and MIS 3. During the MIS 2 reworking of aeolian deposits presumably developed during the Last Glacial Maximum in the area (c. 22 -21 kyr) fossilize most terrace surfaces down to +30 m.
Palabras clave: Luminiscencia Opticamente Estimulada (OSL), Geocronología, Terrazas fluviales, Tajo, España Central
Keywords: Optically Stimulated Luminiscence (OSL), Geochronology, Fluvial terraces, Tagus River, Central Spain.
