Late Quaternary geohistory of Sárrét Basin, based on studies on core Sárrét-2, Hungary

Tibor Cserny, Pál Sümegi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The Sárrét marshland is situated along the northeastern foothills of the Bakony Mountains, along a NE-SW-trending neotectonic zone. Investigation of the marshland and the reconstruction of its evolution are especially interesting to compare to the present and the expected future stage of Lakes Balaton and Velence. Based on the sedimentological characteristics of the core sequence and the geochemical, physical, and mineralogical composition of the layers, three sedimentological cycles could be separated. The three cycles represent the most important evolutionary phases of take formation: flourishing and progressive aging. First, a nutrient-poor, open-water lake existed, where clastic sediments (sand and silty clay) were deposited. During the second phase, phytoplankton-produced autogenic lime mud was deposited in the progressively more eutrophic water. Peat accumulation during the third stage indicates the marsh phase of the lake. The results suggest that the studied sequence developed from Late Glacial to Middle Holocene. According to radiocarbon dating the accumulation rate in SArr6t (Sumegi, this volume) corresponds to the sedimentation rates in the Tapolca Basin and Lake Balaton.

Original languageEnglish
Pages (from-to)391-405
Number of pages15
JournalActa Geologica Hungarica
Volume46
Issue number4
DOIs
Publication statusPublished - Jul 15 2004

Keywords

  • Geochemistry
  • Geohistory
  • Hungary
  • Late Quaternary
  • Limnogeology
  • Radiocarbon age
  • Sedimentology
  • Sárrét

ASJC Scopus subject areas

  • Geology

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