Luminescence and radiocarbon dates from alluvial sediments, Podhale, Central Europe — A methods comparison
(2023) In Catena 221.- Abstract
Optically stimulated luminescence (OSL) and radiocarbon (14C) techniques were employed to investigate the absolute ages of alluvial sediments in Podhale in the West Carpathians, southern Poland. This is an approach to (i) testing the credibility of the above dating methods by their reciprocal age control and (ii) further implications to regional geochronology and to dating campaigns of alluvial sequences elsewhere. Nine geological sections comprised of mineral and organic material were selected for the study. Our age determinations range from 26.9 to 2.27 ka, and are in good geochronological order. OSL age estimates show good agreement with independent ages from radiocarbon dating. However, in three alluvial successions the... (More)
Optically stimulated luminescence (OSL) and radiocarbon (14C) techniques were employed to investigate the absolute ages of alluvial sediments in Podhale in the West Carpathians, southern Poland. This is an approach to (i) testing the credibility of the above dating methods by their reciprocal age control and (ii) further implications to regional geochronology and to dating campaigns of alluvial sequences elsewhere. Nine geological sections comprised of mineral and organic material were selected for the study. Our age determinations range from 26.9 to 2.27 ka, and are in good geochronological order. OSL age estimates show good agreement with independent ages from radiocarbon dating. However, in three alluvial successions the discrepancy between the resulting ages is considerable. We attribute the difference to the partial bleaching, and organic material redeposition. We also report on an age reversal of sediments in a single geological section. This might have been resulted from the alluviation-erosion scheme of meandering rivers over a millennial time-scale, i.e. the dominance of channel migration, point bar deposition (lateral accretion), and crosswise erosion. Finally, new geochronological data are provided abolishing sediment age assumptions based on uncertain chronostratigraphical approaches.
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- author
- Olszak, Janusz ; Kukulak, Józef ; Alexanderson, Helena LU ; Krąpiec, Marek ; Thamó-Bozsó, Edit and Ciurej, Agnieszka
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- C, Alluvial sediments, Carpathians, OSL, River terraces
- in
- Catena
- volume
- 221
- article number
- 106792
- publisher
- Elsevier
- external identifiers
-
- scopus:85142127695
- ISSN
- 0341-8162
- DOI
- 10.1016/j.catena.2022.106792
- language
- English
- LU publication?
- yes
- id
- 625679bd-a590-4bc3-b023-abc1112f159f
- date added to LUP
- 2023-02-08 15:51:07
- date last changed
- 2023-02-08 15:51:07
@article{625679bd-a590-4bc3-b023-abc1112f159f,
abstract = {{<p>Optically stimulated luminescence (OSL) and radiocarbon (<sup>14</sup>C) techniques were employed to investigate the absolute ages of alluvial sediments in Podhale in the West Carpathians, southern Poland. This is an approach to (i) testing the credibility of the above dating methods by their reciprocal age control and (ii) further implications to regional geochronology and to dating campaigns of alluvial sequences elsewhere. Nine geological sections comprised of mineral and organic material were selected for the study. Our age determinations range from 26.9 to 2.27 ka, and are in good geochronological order. OSL age estimates show good agreement with independent ages from radiocarbon dating. However, in three alluvial successions the discrepancy between the resulting ages is considerable. We attribute the difference to the partial bleaching, and organic material redeposition. We also report on an age reversal of sediments in a single geological section. This might have been resulted from the alluviation-erosion scheme of meandering rivers over a millennial time-scale, i.e. the dominance of channel migration, point bar deposition (lateral accretion), and crosswise erosion. Finally, new geochronological data are provided abolishing sediment age assumptions based on uncertain chronostratigraphical approaches.</p>}},
author = {{Olszak, Janusz and Kukulak, Józef and Alexanderson, Helena and Krąpiec, Marek and Thamó-Bozsó, Edit and Ciurej, Agnieszka}},
issn = {{0341-8162}},
keywords = {{C; Alluvial sediments; Carpathians; OSL; River terraces}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Catena}},
title = {{Luminescence and radiocarbon dates from alluvial sediments, Podhale, Central Europe — A methods comparison}},
url = {{http://dx.doi.org/10.1016/j.catena.2022.106792}},
doi = {{10.1016/j.catena.2022.106792}},
volume = {{221}},
year = {{2023}},
}