Palaeoecological study of a Weichselian wetland site in the Netherlands suggests a link with Dansgaard-Oeschger climate oscillation

B. Van Geel*, J.A.A. Bos, J. Van Huissteden, J.P. Pals, H. Schatz, J.M. Van Mourik, G.B.A. Van Reenen, J. Wallinga, J. Van Der Plicht

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)

Abstract

Botanical microfossils, macroremains and oribatid mites of a Weichselian interstadial deposit in the central Netherlands point to a temporary, sub-arctic wetland in a treeless landscape. Radiocarbon dates and OSL dates show an age between ca. 54.6 and 46.6 ka cal BP. The vegetation succession, starting as a peat-forming wetland that developed into a lake, might well be linked with a Dansgaard-Oeschger climatic cycle. We suggest that during the rapid warming at the start of a D-O cycle, relatively low areas in the landscape became wetlands where peat was formed. During the more gradual temperature decline that followed, evaporation diminished; the wetlands became inundated and lake sediments were formed. During subsequent sub-arctic conditions the interstadial deposits were covered with wind-blown sand. Apart from changes in effective precipitation also the climate-related presence and absence of permafrost conditions may have played a role in the formation of the observed sedimentological sequence from sand to peat, through lacustrine sediment, with coversand on top. The Wageningen sequence may correspond with D-O event 12,13 or 14. Some hitherto not recorded microfossils were described and illustrated.

Original languageEnglish
Pages (from-to)187-201
Number of pages15
JournalGeologie en Mijnbouw/Netherlands Journal of Geosciences
Volume89
Issue number3-4
DOIs
Publication statusPublished - 1 Dec 2010
Externally publishedYes

Keywords

  • Dansgaard-Oeschger cycles
  • Macrofossils
  • Non-pollen palynomorphs
  • Oribatida
  • Pollen
  • Weichselian

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