<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Results of OSL dating and sedimentary studies from the profile of the low alluvial terrace of the middle Warta River are presented. The samples were dated using the single-aliquot regenera-tive method. Dating was used to establish a timing of the Weichselian Late Glacial events in the river valley environment. Stable conditions on the floodplain are expressed by the deposition of organic-rich series radiocarbon dated at 12 900-12 600 cal BP and 11 600-10 770 cal BP. Samples for OSL dating were collected from the mineral material deposited during the intensification of flood events during the Weichselian decline. The results obtained for the alluvia range from 12.78 ± 0.62 ka b2k to 14.33 ± 0.74 ka b2k. Sedimentological criteria allowed to distinguish between particular flood events. Overestimation of OSL ages is probably a result of rapidity of environmental changes in that time.</p></abstract>

Results of OSL dating and sedimentary studies from the profile of the low alluvial terrace of the middle Warta River are presented. The samples were dated using the single-aliquot regenera-tive method. Dating was used to establish a timing of the Weichselian Late Glacial events in the river valley environment. Stable conditions on the floodplain are expressed by the deposition of organic-rich series radiocarbon dated at 12 900-12 600 cal BP and 11 600-10 770 cal BP. Samples for OSL dating were collected from the mineral material deposited during the intensification of flood events during the Weichselian decline. The results obtained for the alluvia range from 12.78 ± 0.62 ka b2k to 14.33 ± 0.74 ka b2k. Sedimentological criteria allowed to distinguish between particular flood events. Overestimation of OSL ages is probably a result of rapidity of environmental changes in that time.

Optical dating and sedimentary record from the terrace depositional profile of the Warta River (Central Poland)

Department of Geomorphology and Palaeogeography, Faculty of Geographical Sciences, University of Lodz, ul. Narutowicza 88, 90-139, Lodz, Poland

Department of Radioisotopes, Institute of Physics-Centre for Science and Education, Silesian University of Technology, ul. Krzywoustego 2, 44-100, Gliwice, Poland

Geochronometria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Results of OSL dating and sedimentary studies from the profile of the low alluvial terrace of the middle Warta River are presented. The samples were dated...

Optical dating and sedimentary record from the terrace depositional profile of the Warta River (Central Poland)

Publié en ligne: 01 oct. 2014

Pages: 361 - 368

DOI: https://doi.org/10.2478/s13386-013-0173-y

Mots clés
palaeofloods, Younger Dryas, OSL, sedimentological studies

© 2014 Silesian University of Technology, Gliwice, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Optical dating and sedimentary record from the terrace depositional profile of the Warta River (Central Poland)

Publié en ligne: 01 oct. 2014

Pages: 361 - 368

DOI: https://doi.org/10.2478/s13386-013-0173-y

Mots cléspalaeofloods, Younger Dryas, OSL, sedimentological studies

© 2014 Silesian University of Technology, Gliwice, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
palaeofloods, Younger Dryas, OSL, sedimentological studies