High-resolution OSL chronology of a well-preserved inland dune in the Lys valley (Sint-Martens-Latem, NW Belgium)

Pincé, Possum; Vandenberghe, Dimitri; Moayed, Nasrin Karimi; Dapper, Morgan De; Debeer, Ann-Eline; Verhegge, Jeroen; Grave, Johan De; Crombé, Philippe

doi:10.1016/j.quageo.2022.101322

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…Such deposition demonstrates the development of parabolic dune, which covered the partially blown existing form, with the predominance of the western wind direction. This palaeotransport direction prevailed in the western and central parts of the ESB throughout the entire Late Glacial (Kasse et al, 2018;Pincé et al, 2022) and is also reported from northern Europe (Alexanderson and Bernhardson, 2019).…”

Section: Discussionsupporting

confidence: 74%

The Role and Frequency of Wildfires in the Shaping of the Late Glacial Inland Dunes – A Case Study from the Korzeniew Site (Central Poland)

Moska,

Sokołowski,

Zieliński

et al. 2023

Geochronometria

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The study examines sedimentology, stratigraphy, and the impact of wildfires on aeolian and soil processes during the Late Glacial Termination in the Korzeniew site, central Poland. The site, within a parabolic dune's central and lee-slope area, presents stacked aeolian sand units intermixed with six charcoal-enriched palaeosols. Thirteen optically stimulated luminescence (OSL) dates on quartz and six radiocarbon dates establish the chronological framework, dating deposition processes. Initial aeolian sand deposition occurred towards the Late Pleniglacial's end. Climate amelioration during the Bølling interstadial led to permafrost thaw and gleyic soil formation, later overlain by migrating parabolic dunes from the older Allerød interstadial. Wildfires, influenced by vegetation cover, deposited charcoals on the dune's lee slope. These charcoals underwent pedogenic reworking amid episodes of aeolian sand deposition during the Allerød interstadial and Younger Dryas, stabilizing in the earliest Holocene. Wildfires significantly impacted local vegetation development and aeolian activity. Despite the warmth of the Allerød interstadial, increased fires correlated with expanding pine forests and their heightened fire susceptibility. Short-term climate shifts likely destabilized vegetation, fostering fire occurrences during the Allerød interstadial.

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Section: Discussionsupporting

confidence: 74%

The Role and Frequency of Wildfires in the Shaping of the Late Glacial Inland Dunes – A Case Study from the Korzeniew Site (Central Poland)

Moska,

Sokołowski,

Zieliński

et al. 2023

Geochronometria

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Chronostratigraphy of the Late Glacial Żabinko site (western Poland) and investigation of the dose rate variability

Szymak,

Moska,

Sokołowski

et al. 2024

Geochronometria

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The Żabinko exposure (western Poland) reveals the classic fluvio-aeolian succession known from studies in the European Sand Belt. Previous chronostratigraphic studies were mainly based on uncalibrated radiocarbon dates from organic sediments and thermoluminescence dating. The picture visible from these studies indicated a number of discrepancies between these methods. The new research in this exposure was based on optically stimulated luminescence (OSL) dating and calibrated radiocarbon dates. The results obtained indicate a general discrepancy between the results achieved by these two methods. While the radiocarbon dates provide some meaningful picture and allow correlation with previous studies, the results of OSL dating do not allow for a chronological model of sedimentary processes. The OSL dates show large inversions of the results and are clearly younger than the other dating results. Detailed analysis of OSL measurements shows radioactive disequilibrium and variability linked to differential stratification of sediments, significantly impacting the assessment of environmental dose rates. We believe that this atypical variability is presumably the result of postdepositional processes, such as changes in groundwater levels, chemical weathering and radionuclide migration.

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High-resolution OSL chronology of a well-preserved inland dune in the Lys valley (Sint-Martens-Latem, NW Belgium)

Cited by 2 publications

References 31 publications

The Role and Frequency of Wildfires in the Shaping of the Late Glacial Inland Dunes – A Case Study from the Korzeniew Site (Central Poland)

The Role and Frequency of Wildfires in the Shaping of the Late Glacial Inland Dunes – A Case Study from the Korzeniew Site (Central Poland)

Chronostratigraphy of the Late Glacial Żabinko site (western Poland) and investigation of the dose rate variability

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