<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Distinctly diverse results of TL dating are obtained for the deposits with similar lithofacial features but filling morphologically differentiated karst palaeoforms (dolines, pipes, pockets). The infillings of dolines and pipes are mostly of the Saalian age. Based on sedimentological analysis, their formation conditions are related to sub- or/and terminoglacial environment. The age obtained for all infillings of pockets is underestimated in comparison with lithostratigraphic data. A close genetic relationship between these forms and periglacial conditions seems to indicate that the reduction of TL signal is mostly influenced by the disintegration of grains resulted from the repeated freezing and thawing of glaciogenic deposits. A considerable influence of frost weathering on the decrease of thermoluminescence intensity of mineral grains is indirectly confirmed by the results of experimental investigations consisting in the repeated TL measurements of pockets' infillings after successive freeze-thaw cycles.</p></abstract>

Distinctly diverse results of TL dating are obtained for the deposits with similar lithofacial features but filling morphologically differentiated karst palaeoforms (dolines, pipes, pockets). The infillings of dolines and pipes are mostly of the Saalian age. Based on sedimentological analysis, their formation conditions are related to sub- or/and terminoglacial environment. The age obtained for all infillings of pockets is underestimated in comparison with lithostratigraphic data. A close genetic relationship between these forms and periglacial conditions seems to indicate that the reduction of TL signal is mostly influenced by the disintegration of grains resulted from the repeated freezing and thawing of glaciogenic deposits. A considerable influence of frost weathering on the decrease of thermoluminescence intensity of mineral grains is indirectly confirmed by the results of experimental investigations consisting in the repeated TL measurements of pockets' infillings after successive freeze-thaw cycles.

Glacial and Periglacial Transformation of Palaeokarst in the Lublin-Volhynia Region (Se Poland, NW Ukraine) on the Base of TL Dating

Institute of Earth Sciences, Maria Curie-Sklodowska University, Krasnicka 2 cd, 20-718 Lublin, Poland

Department of Geomorphology and Quaternary Geology, Gdańsk University, Dmowskiego 16a, 80-952 Gdańsk, Poland

Geochronometria

Distinctly diverse results of TL dating are obtained for the deposits with similar lithofacial features but filling morphologically differentiated karst...

Glacial and Periglacial Transformation of Palaeokarst in the Lublin-Volhynia Region (Se Poland, NW Ukraine) on the Base of TL Dating

Publié en ligne: 01 mai 2007

Pages: 41 - 46

DOI: https://doi.org/10.2478/v10003-007-0012-3

Mots clés
Thermoluminescence dating, palaeokarst, glacial transformation, periglacial transformation, Lublin-Volhynia karst region, Poland SE, Ukraine NW

This content is open access.

Glacial and Periglacial Transformation of Palaeokarst in the Lublin-Volhynia Region (Se Poland, NW Ukraine) on the Base of TL Dating

Publié en ligne: 01 mai 2007

Pages: 41 - 46

DOI: https://doi.org/10.2478/v10003-007-0012-3

Mots clésThermoluminescence dating, palaeokarst, glacial transformation, periglacial transformation, Lublin-Volhynia karst region, Poland SE, Ukraine NW

This content is open access.

Mots clés
Thermoluminescence dating, palaeokarst, glacial transformation, periglacial transformation, Lublin-Volhynia karst region, Poland SE, Ukraine NW