Fracture pattern analysis of hardrock hydrogeological environment, Kea Island, Greece
The geological and hydrogeological regime of Kea Island is presented, focusing on the fracture pattern analysis of the crystalline-schist mass outcrops the island. The combined use of field mapping and geological data digital analysis extracting lineament density maps and fracture intersection density maps reveals a high relationship between the fracture pattern and the groundwater occurrence. In order to obtain a complete description of the fracture network, the study area is mapped at various scales with the aid of GIS and remote sensing techniques were integrated along with the data gathered from field work. Remarkable correlations between the hydrochemical data of the main springs (located along the SE and NW part of the island), and the results of lineament analysis and the hydrolithological regime of Kea Island, contribute to extract an integrated conception for the relation of the groundwater potential with the structure of fissured rocks.
KeywordsGroundwater Flow Crystalline Complex Fissure Rock Chloritic Schist Chloride Sulfate
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