Perić, Zoran M. and Ryan, Cathal and Alexanderson, Helena and Marković, Slobodan B. (2024) Revised OSL chronology of the Kisiljevo loess-palaeosol sequence: New insight into the dust flux in the eastern Carpathian Basin during MIS 3 - MIS1. Quaternary International. ISSN 10406182

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Abstract

This study presents a detailed investigation of the Kisiljevo loess-palaeosol sequence in north-eastern Serbia, offering a refined understanding of its paleoenvironmental dynamics. Contrasting our updated OSL chronology with a previous study, reveals discrepancies, particularly at 400 cm depth, where a considerable age underestimation is evident. While variations in sampling depth and methodology may contribute to some differences, the substantial deviation raises concern about the reliability of the earlier chronology. Our robust age-depth model constructed using Bayesian modelling, and the consistent increase in ages with depth suggest a potential underestimation in the uppermost layer of the earlier study, possibly due to partial bleaching or post-depositional mixing. The Bayesian age-depth model portrays a continuous sedimentation history from the later stages of Marine Isotope Stage 3 (MIS 3) to the present day. The patterns in the calculated Mass Accumulation Rates reveal distinctive peaks during MIS 3 and the middle of MIS 2, deviating from typical dust deposition models. The MIS 3 peaks in dustiness could be attributed to regional factors such as increased transportation rates, enhanced trapping efficiency, or elevated palaeowind intensity. This research not only enhances our understanding of the Kisiljevo LPS but also provides valuable insights into regional paleoenvironmental dynamics. The study emphasizes the importance of considering local geological variations in reconstructing past climates from sediment archives and sets the stage for further investigations into the factors influencing dust deposition in north-eastern Serbia. The MAR trends established here serve as a crucial reference for broader paleoclimatic interpretations in the Carpathian Basin.

Item Type:	Article
Additional Information:	ZP is grateful for the support of the Royal Physiographic Society in Lund (grants no. 42788 and 43046) for supporting his research on the age of loess in the Carpathian Basin. This research was conducted within the Lu2D2 (The Lund Luminescence centre for Dating and Dosimetry) infrastructure.
Keywords:	Optically stimulated luminescence; Quartz; Age models; Revised chronology; Loess;
Academic Unit:	Faculty of Social Sciences > Geography Faculty of Social Sciences > Research Institutes > Irish Climate Analysis and Research Units, ICARUS
Item ID:	18670
Identification Number:	https://doi.org/10.1016/j.quaint.2024.06.006
Depositing User:	Corinne Voces
Date Deposited:	02 Jul 2024 15:45
Journal or Publication Title:	Quaternary International
Publisher:	Elsevier
Refereed:	Yes
URI:	https://www.sciencedirect.com/science/ar...
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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