Open AccessThe krathis lake, one century of evolution.
Author(s) -
Maria Groumpou,
Pavlos Avramidis,
George Iliopoulos,
H. Papaefthymiou,
Ioannis Koukouvelas
Publication year - 2021
Publication title -
european journal of geography/european journal of geography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 9
eISSN - 2410-7433
pISSN - 1792-1341
DOI - 10.48088/ejg.m.gro.12.2.20.35
Subject(s) - swamp , geology , radiocarbon dating , radiometric dating , landslide , sedimentation , tectonics , subsidence , fault (geology) , paleontology , period (music) , geomorphology , sediment , ecology , physics , structural basin , acoustics , biology
A riverbed swamp in the Krathis River, N. Peloponnese, is studied and analyzed geomorphologicaly. Our analysis is also based on sedimentological, geochemical, palaeontological and radiometric dating data which enabled the investigation of the possible relationship between the studied swamp and the 1913 Tsivlos landslide. Sedimentological analysis showed that the current sedimentation is dominated by fine grain material and occasional coarse-grained beds. Micropalaeontological analysis indicated that the deeper layers of the core are barren, while the upper ones contain fresh water ostracods suggesting hydrodynamically a progressively more stable environment. In accordance, radiocarbon C14 and 137Cs dating showed a progressively decreasing sedimentation rate over the last fifty years. The results of this study show that the Tsivlos landslide is not the only cause for the formation of the modern swamp. Tectonic movements in the area seem to play a decisive role causing uplift and subsidence in the area near an active fault.