Late-glacial to Holocene aeolian deposition in northeastern Europe - The timing of sedimentation at the Iisaku site (NE Estonia)

Edyta Kalinska-Nartisa, Maris Nartiss, Christine Thiel, Jan-Pieter Buylaert, Andrew Sean Murray

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The Late-glacial and Holocene aeolian inland dune complex at Iisaku (NE Estonia) has been investigated using an accurate and detailed compilation of the sedimentary properties and chronological framework. The quartz grains forming the dunes are very variable, reflecting aeolian, weathering, and periglacial conditions, both prior and after deposition. Although the morphological forms and the sedimentary record point to a dune-like environment, the transport record reflects either a short transport time or/and distance, and a contribution from neighbouring sedimentary environments. Dune development in the area was strongly controlled by the formation of the Baltic Ice Lake (BIL) in front of the retreating glacier. Luminescence ages from the aeolian complex suggest continuous deposition between 13.3 +/- 1.2 to 10.5 +/- 0.7 ka. However, the chronology of sand deposition also suggests phases in this aeolian activity: (1) at 13.3 +/- 1.2 ka and onwards, possibly correlated with the existence of an island separating the BIL and Peipsi Lake, (2) between 12.7 +/- 0.8 - 12.5 +/- 0.8 ka representing the Younger Dryas cold reversal, (3) between 11.5 +/- 0.7 - 10.9 +/- 0.8 ka indicating that aeolian deposition continued over the Younger Dryas/Holocene boundary, and (4) early Holocene sandedrift at 10.5 +/- 0.7 ka. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
    Original languageEnglish
    JournalQuaternary International
    Volume357
    Pages (from-to)70-81
    Number of pages12
    ISSN1040-6182
    DOIs
    Publication statusPublished - 2015

    Keywords

    • GEOGRAPHY,
    • GEOSCIENCES,
    • OPTICALLY STIMULATED LUMINESCENCE
    • LATEGLACIAL VEGETATION DYNAMICS
    • SCANNING-ELECTRON-MICROSCOPY
    • SURFACE TEXTURAL ANALYSIS
    • SCANDINAVIAN ICE-SHEET
    • FRESH-WATER TUFA
    • QUARTZ GRAINS
    • PALEOENVIRONMENTAL CONDITIONS
    • DEGLACIATION CHRONOLOGY
    • SOUTHEASTERN SECTOR
    • Optically stimulated luminescence dating
    • Sedimentary features
    • Late-glacial
    • Holocene
    • Inland dunes

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