SEDIMENTOLOGICAL AND PALAEOENVIRONMENTAL CHARACTER OF LAKE KORONIA SEDIMENTS

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Publiée : Jul 27, 2016
DOI : https://doi.org/10.12681/bgsg.11730
S. Doani
Aristotle University of Thessaloniki, School of Geology, Department of Physical and Environmental Geography
K. Albanakis
Aristotle University of Thessaloniki, School of Geology, Department of Physical and Environmental Geography
O. Koukousioura
Aristotle University of Thessaloniki, School of Geology, Department of Geology
K.K. Koliadimou
Aristotle University of Thessaloniki, School of Geology, Department of Physical and Environmental Geography
Résumé

The aim of the present study is to investigate the sedimentological characteristics of Lake Koronia down to a depth of 3.5m below lake bottom. Sampling operations took advandage of a season that the lake bottom was exposed to subaerial conditions. The sedimentological analysis proved that sediments consist of mud to sandy mud, with 2 phases of very fine sand fractions. The proportion of dry organic matter contained into sediment, appears to be generally small while the rates of moisture and volatiles are relatively high. Furthermore, this study examines the distribution of ostracod populations in the sediments of the lake in relation to depth, grain size and other environmental conditions of this water body. Four ostracod species were identified: Candona neglecta, Darwinula stevensoni, Heterocypris spp. and Limnocythere inopinata. The study of freshwater ostracods provides information for the palaeoecological/palaeoenvironmental conditions during the sedimentation.

Article Details
  • Rubrique
  • Marine Geology and Oceanography
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