The “Selinitsa-Drakos” coastal karstic system in the Messinian Mani Peninsula (southwestern Greece) in relation to the terrestrial geoenvironment

Pages: 
pp. 75-83
Faculty of Geology and Geoenvironment, University of Athens, Platanon 16b, 14578, Athens, Greece
Odyssea Elyti 15, 13341, Athens, Greece
Abstract: 

The studied coastal karstic system comprises “Selinitsa” Cave and “Drakos” Underground River. It is located in southwestern Greece across the western coastline of the Messinian Mani Peninsula. It is developed into limestones of Upper Senonian to Upper Eocene age belonging to the Mani geotectonic unit. “Selinitsa” is mainly developed above the sea level, whereas “Drakos” is under water down to -48 m. These two caves are now connected through a 28-m long narrow passage at depth of -28 m, thus creating a united karstic system. Both caves were initially separate and terrestrial. Today, the majority of cave passages of “Selinitsa” are terrestrial. In “Senitsa-Drakos” karstic system, sequential karstification base levels have been identified. These levels determined the karstic system development. “Selinitsa” passages are phreatic and vadose, whereas “Drakos” passages are only phreatic, acting as lifting tubes. The passage network of both caves presents dentritic pattern and comprises the hydrological equivalent of the surface drainage network. To the east of the karstic system, karst margin plains are present comprising karstified tectonic terraces, whereas above the “Selinitsa-Drakos” system manmade terraces exist for agricultural purposes.

Keywords: 

“Selinitsa” cave, “Drakos” Underground River, terrestrial, hydrological equivalent network, speleomorphology

VOLUME 40 (1-3)/December 2011

Sofia University “St Kliment Ohridski”, Faculty of Geology and Geography, 15 Tzar Osvoboditel, 1504 Sofia, Bulgaria

National Museum of Natural History, Bulgarian Academy of Sciences, 1, Tsar Osvoboditel Blv., 1000 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Sofia 1113, Acad. G. Bonchev St., Block 24, Sofia 1113, Bulgaria
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Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Block 107, Sofia 1113, Bulgaria
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Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Block 107, Sofia 1113, Bulgaria

Czech Geological Survey, Klarov 3/131, 118 21 Praha 1, Czech Republic
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St. Bl. 24, 1113 Sofia, Bulgaria

Faculty of Geology and Geoenvironment, University of Athens, Platanon 16b, 14578, Athens, Greece
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Odyssea Elyti 15, 13341, Athens, Greece

Geological Institute, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia