The zeolite deposits of Greece |
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| Authors: | M G Stamatakis A Hall J R Hein |
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| Institution: | (1) Department of Geology, National University of Athens, Panepistimiopolis, Ano Ilissia, 157-85 Athens, Greece;(2) Department of Geology, Royal Holloway, University of London, TW20 OEX Egham, Surrey, UK;(3) US Geological Survey, 345 Middlefield Rd. MS 999, 94025 Menlo Park, California, USA |
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| Abstract: | Zeolites are present in altered pyroclastic rocks at many localities in Greece, and large deposits of potential economic interest are present in three areas: (1) the Evros region of the province of Thrace in the north-eastern part of the Greek mainland; (2) the islands of Kimolos and Poliegos in the western Aegean; and (3) the island of Samos in the eastern Aegean Sea. The deposits in Thrace are of Eocene-Oligocene age and are rich in heulandite and/or clinoptilolite. Those of Kimolos and Poliegos are mainly Quaternary and are rich in mordenite. Those of Samos are Miocene, and are rich in clinoptilolite and/or analcime. The deposits in Thrace are believed to have formed in an open hydrological system by the action of meteoric water, and those of the western Aegean islands in a similar way but under conditions of high heat flow, whereas the deposits in Samos were formed in a saline-alkaline lake. |
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