Geomorphological analysis on the island of Folegandros in a GIS environment

Postgraduate Thesis uoadl:2922364 7 Read counter

Unit:
Κατεύθυνση Γεωγραφία και Περιβάλλον
Library of the School of Science
Deposit date:
2020-09-11
Year:
2020
Author:
Kouiouri Lamprini
Supervisors info:
Γκουρνέλος Θεόδωρος, Καθηγητής, Σχολή Θετικών Επιστημών, Τμήμα Γεωλογίας και Γεωπεριβάλλοντος, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Original Title:
Γεωμορφολογική ανάλυση στη νήσο Φολέγανδρο σε περιβάλλον Γ.Σ.Π
Languages:
Greek
Translated title:
Geomorphological analysis on the island of Folegandros in a GIS environment
Summary:
The implementation of this dissertation has as a prerequisite the collection of bibliography and topographic, geological, geomorphological and meteorological data. To continue with, the data is entered into a geographic information system, analyzed and, in the process, maps are drawn that help in geomorphological research. More specifically, this study dealt with the spatial distribution of climate change (temperature, wind, rainfall) and the processing of altitude model of soil and parameters related to the hydrographic network, such as slopes and aspects. Hydrographic density and hydrographic frequency (hydrographic texture) were calculated and the results were processed and combined in order to create maps in an ArcGIS environment.
Folegandros island is located at the central part of the Aegean Sea, in the south of the Cyclades, between Sikinos and Milos. The island has an elongated shape covers an area of 32 sq.km, with a direction NNW - SSE. From a morphological point of view, Folegandros can be divided into eastern and western parts. Regarding the geology of Folegandros, the pre-Alpine base is consisting of schists, gneisses and amphibolites and the Alpine complex which is distinguished in high transformation (Eclogite phase, older) and low transformation, Greenschist phase, newer). The analysis and interpretation of the data proves that the morphological differentiation of Folegandros is related to the geology of the island, since the boundary of the two sections coincides with the thrust of the upper with the lower row. The final configuration of the island is due both to the different deposits and therefore to the different deposit environments (neonatal deposits in the eastern part, therefore lake environments, sediments that are transported to the sea in the western part), and to the exogenous processes that contribute to the combination with tectonic activities that occur later and affect the morphology of the area.
Main subject category:
Science
Keywords:
Folegandros, Geomorphology, GIS, Morphometric parameters, Hydrographic parameters, Map export
Index:
No
Number of index pages:
0
Contains images:
Yes
Number of references:
87
Number of pages:
69
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