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Optically‐Stimulated‐Luminescence Ages and Paleo‐Environmental Implications of Relict Frost Wedges in North–Central Bohemia, Czech Republic

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  • Tomáš Uxa
  • Marek Křížek
  • David Krause
  • Piotr Moska
  • Julian Murton

Abstract

Relict frost wedges are widespread and valuable indicators of past environmental conditions that have been extensively dated across central and western European lowlands over the past few decades, but their timing in the Czech Republic is poorly known. Here, we present optically‐stimulated‐luminescence (OSL) ages for seven relict frost wedges situated at four study sites in north–central Bohemia, Czech Republic (49.9992–50.4956°N, 13.3736–16.0011°E, 230–350 m above sea level). The OSL ages indicate that the frost wedges developed during two phases in marine isotope stage 2: an older phase that peaked at 23.6 ± 2.9 ka and a younger phase that peaked at 16.1 ± 1.3 ka. Both phases probably experienced cold, dry and windy conditions that were mostly associated with

Suggested Citation

  • Tomáš Uxa & Marek Křížek & David Krause & Piotr Moska & Julian Murton, 2024. "Optically‐Stimulated‐Luminescence Ages and Paleo‐Environmental Implications of Relict Frost Wedges in North–Central Bohemia, Czech Republic," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 35(3), pages 294-383, July.
    • Handle: RePEc:wly:perpro:v:35:y:2024:i:3:p:294-383
    DOI: 10.1002/ppp.2241
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