Abstract:

In this paper the area of the lakes Iliki and Paralimni are examined (Viotia). The research focuses on the influence of the tectonic on the morphological structure of the area and on the formation of the lakes, with fieldwork and the use of GIS (Geographic Information Systems). For this purpose the azimuth directions of
the rupture zones were calculated with the use of ‘geoline orientation’ algorithm. The analysis of the morphological slopes and of the aspect was performed with the use of the algorithm ‘Triangulation with smoothing’. The outcome of the fault direction concurs with the Pliocene faults direction, as well as the tectonic Fokiko - Viotiko trough direction. The Quaternary faults direction concurs with the recent rupture
zone. In general, the dominating morphological slopes are of 0-10%, while the higher slopes are found at the north and east. The aspect that concerns the direction of the morphological slope concurs with the main rupture zone of the tectonic Fokiko - Viotiko trough direction, and the recent rupture zone. The orientation of Iliki lake corresponds to the former rupture zone; the orientation of Paralimni lake corresponds to the later one.