KOSMAS-GYTHIO UNIT: A METAMORPHIC CARBONATE SEQUENCE OVERLYING THE PHYLLITES-QUARTZITES UNIT IN SOUTHERN PELOPONNESUS, GREECE.


E. Skourtsos
S. Lekkas
Résumé

New data from southern Peloponnesus show the presence of a metamorphic carbonate sequence sandwiched between the Phyllites Quartzites and the Tyros beds, the permothassic base of the Tripolitza unit. The lithostratigraphic members of this sequence, named Kosmas Gythio unit, are comparable to that of the Plattenkalk unit in Taygetos and Parnon mountains. It is suggested that palaeogeographically the unit belongs to the Ionian basin and its position was between the Plattenkalk unit and the Tripolitza carbonate platform. As for the Phyllites-Quartzites unit it is suggested that this unit is not a metamorphic equivalent to the Tyros Beds or the basement of the Tripolitza platform, but the base or the basement of the Kosmas-Gythio unit, and therefore of the Ionian basin.

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  • Rubrique
  • Tectonics and Geodynamics
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Références
Aleweld E., Groebke P. and Zacher W., 1994. The contact zone between Phyllite-Quartzite and Gavrovo- Tripolis unit in the Taygetos mountains, Messenia.: Bull. Soc. Geol. Greece, v. 30, p. 147-152.
Alexopoulos Α., 1995. The hydrogeological conditions of the Vasiliko Marbles (north-central Crete. 3o Hydrogeological Conference, p. 76-91.
Alexopoulos A. and Lekkas S., 1999. The tectonic structure of Tainaro (Mani) Peninsula (Southern Péloponnèse, Greece): N. Jb. Geol. Palaont. Mh., v. 1999, p. 698-704.
Aleweld E., 2002. Seriengliederung und Deckenbau im nördlichen Taygetos-Gebirge (Südpeloponnes, Griechenland): pHD thesis, Universität Müchen, Müchen, 150 p.
Aubouin J. and Dercourt J., 1965. Sur la geologie de l'Egee: Regard sur la Crete (Grece): Bull. Soc. Geol. France., ν. VII, p. 787-821.
Blümor, T., 1998, Die Phyllit-Quarzit-Serie SE-Lakoniens (Peloponess, Griechenland): Hochdruckmetamorphite in einem orogenen Keil: Frankfurter geowiss. Arb. Serie A, v. Bd. 17: Frankfurter, 187 p.
Brauer R., Ittner R. and Kowalczyk G., 1980. Ergebnisse aus der "Phyllite-Serie" SE-Lakoniens: Ν. Jb. Geol. Palaont. Mh., v. 3, p. 129-144.
Creutzburg N. and Papastamatiou J., 1966. Neue beitrage zur geologi der insel Kreta: Geol. Geophys. Res., v. 9, p. 173-185.
Danelian T., Lekkas S. and Alexopoulos Α., 2000. Découverte de radiolarites triasiques dans un complexe ophiolitique â l'Extrême-Sud du Péloponnèse (Agelona, Lakonie, Grèce): C. R. Acad. Sci. Paris, v. 330, p. 639-644.
Dimadis G., 1987. Geological map "Gythio sheet". I.G.Μ.E.
Doutsos T., Koukouvelas I., Poulimenos G., Kokkalas S., Xypolias P. & Skourlis K. 2000. An exhumation model of the south Peloponnesus, Greece. International Journal of Earth Science 89, 350-365.
Epting M., Kudrass H. R., Leppig U. and Schäfer Α., 1972. Geologie der Talea Oh/Kreta: Ν. Jb. Geol. Palaont. Abh.,v. 141, p. 259-285.
Gerolymatos I., Dornsiepen U. and Trifonova E., 1982. Vorkommen von höheren zentralhellenischen Deckeneinheiten in Lakonien (Peloponnes, Griechenland): Prakt. Akad. Athinon, 57, p. 247-261.
Hall R. and Audley-Charles M. G., 1983. The structure and regional significance of Talea Ori, Crete: Journal of Structural Geology, v. 5, p. 167-179.
Jacobshagen V., Richter D. and Makris J., 1978. Alpidic development of the Peloponnesus, in Closs, H., Roeder, D. and Schmidt, H., eds., Alps, Appennines, Hellenides: Stuttgart, E. Schweizerbart'sche Verlagsbuchhandlung,, p. 415-423.
Karakitsios V., 1979. Contribution a l'étude géologique des Hellenides: Étude de la region de Sellia (Crète moyenne- occidentale, Grèce). Les relations lithostratigraphiqueset structurales entre la série des Phyllades et la série de Tripolitza: These, 3eme cycle thesis, University Pierre et Marie Curie, Paris.
Krahl J., Eberle P., Eickhoff J., Forster Ο. and Kozur Η., 1982. Biostratigraphical investigations in the Phyllite- Quartzite Group on Crete island, Greece: International Symposium on the HellenicArc and Trench (H.E.A.T.), p. 306-323.
Krahl J., Kauffmann G., Kozur H., Richter D., Forster Ο. and Heinritzi F., 1983. Neue Daten zur Biostratigraphie und zur tektonischen Lagerung der Phyllit-Gruppe und der Trypali-Gruppe aufder Insel Kreta (Griechenland): Geol. Rundsch., v. 72, p. 1147-1166.
Lallemant S. 1984. La tranversale Nord-Maniote. Etude géologique et aeromagnetique d'une structure tranverse a l'arc Egeen externe. Unpublished These, 3eme cycle thesis, Universite Pierre et Marie Curie.
Lekkas S., 1980. Les phyllades du Péloponnèse: un metaflysch ionien chevauche par la serie de Gavrovo- Tripolitza (Grece): C. R. Acad. Sci. Paris, v. 291, p. 21-24.
Manutsoglu E., 1990. Tektonik und metamorphose der Plattenkalk-Serie im Taygetos (Peloponnes, Griechenland): Berliner geowiss. Abh. (A), v. 129: Berlin, 82 p.
Papanikolaou D. and Skarpelis N., 1988. The blueschists in the external metamorphic belt of the Hellenides: Composition, structure and geotectonic significance of the Arna Unit: Ann. Geol. Pays Hell., v. 33, p. 47-68.
Paraskevopoulos G., 1964. Die alpine Dislokotionsmetamorphose im zentral Peloponnesisch-Kretschen metamorphen System: Ν. Jb. Mineral. Abh., v. 101, p. 195-209.
Psonis K.Th., 1981. About the presence of Permian (?) - Lower Triassic beds as a basement of the Plattenkalk series in the Taygetos Mt. Description of a continuous section. Ann. Geol. Pays. Hell., 30, 578-587.
Skourtsos E. 2002. The geological structure of the eastern boundaries of the tectonic window of Parnon Mt. Unpublished Phd Thesis, National and Kapodistrian University of Athens, 396p (in Greek with extended English abstract).
Thiebault F., ed., 1982. Evolution geodynamique des Hellenides externes en Péloponnèse meridional (Grece), v. 6, Société Géologique du Nord, 393 p.
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