LATE-AND POST-MIOCENE GEODYNAMIC EVOLUTION OF THE MESOGEA BASIN (EAST ATTICA, GREECE): CONSTRAINTS FROM SEDIMENT PETROGRAPHY AND STRUCTURES

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Published: Jun 8, 2007
DOI: https://doi.org/10.12681/bgsg.16627
Keywords:
Debris material gravity-sliding block detachment Penteli
E. Mposkos
National Technical University of Athens, School of Mining and Metallurgical Engineering, Section of Geological Sciences
A. Krohe
University of Munster, Institute of Mineralogy, Laboratory for Geochronologie
A. Diamantopoulos
National Technical University of Athens, School of Mining and Metallurgical Engineering, Section of Geological Sciences
I. Baziotis
National Technical University of Athens, School of Mining and Metallurgical Engineering, Section of Geological Sciences
Abstract

In Attica, from the Miocene through the Quaternary, successive generations of detachment faults caused exhumation and denudation of Alpine HP rocks and – later on -formation of sedimentary basins. The Mesogea low angle detachment fault separates the HP rocks exposed at the southern flank of the Penteli Mtfrom the Late - post-Late Miocene Mesogea basin. Combined sedimentary-petrologic and structural analyses reveal the following: (i) Late Miocene sediments include material from unmetamorphosed source areas suggesting that, until then, parts of the HP rocks were buried under the (largely unmetamorphosed) Pelagonian nappe unit, (ii) Post-Late Miocene sediments exclusively contain clasts from high-P source areas and show downward bending of the layering that accommodates slip along a lis trie fault surface. Close to the Penteli Mt, within the post-Late-Miocene sediments gravity sliding-blocL· of metamorphic rocks occur. All this indicates post-Late Miocene activity along this detachment fault controlled rapid surface uplift/relief formation, denudation and fast erosion of HP rocks in the Penteli Mt.

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  • Tectonic- Dynamic- Applied Geology
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References
Alexopoulos, Α., Lekkas, S., and Moraiti, E., 1998. On the occurrence of a non metamorphic Uppper Eocene - Lower Oligocene clastic sequence, wedged between the allochthon and the relative autochthon system of Attiki (Greece), Bulletin Geological Society of Greece, XXXIV/1,79-84.
Altherr R., and Seidel, W., 2002. I-type plutonism in a continental back-arc setting: Miocene granitoids and monzonites from the central Aegean Sea, Greece, Contrib Mineral Petrol, 143,397-415.
Baziotis, L, Mposkos, E., and Perdikatsis, V., 2006. Reconstruction and correlation of the exhumation history of high-pressure/low-temperature metamorphic rocks from Attica, NECAM 2006, Milos island, Greece, 28.
Diamantopoulos, Α., 2006. Non-coaxial stretching deformation dominating the Upper Structural Plate of the Metamorphic Core Complex of Attica (Internal Hellenides, Central Greece), XVIIIth CBGA, Belgrade, Servia, 101-105.
Ioakim, Ch., Rondoyanni, Th., and Mettos, Α., 2005. The Miocene basins of Greece (Eastern Mediterranean) from a paleoclimatic perspective, Revue de Paleobiologe, 24, 735-748.
Katsiavrias, N., Solakius, N., and Salaj, J., 1991. The age of the Agios Konstantinos limestone at Lavrion, Southeastern Attica, Greece, Geologica Carpathica 42, No 5, 303-309.
Katsikatsios, G., Migiros, G., Triantafillis, M., and Mettos, Α., 1986. Geological structure of Internal Hellenides (E. Thessaly - SW. Macedonia, Euboea - Attica - Northern Cyclades Islands and Lesvos), Geological & Geophysical Research, Special Issue, 191-212.
Katsikatsios, G., Mettos, Α., and Vidakis, M., 2002. Kifisia sheet. I.G.M.E. 1/50.000 Scale. Lepsius, R., 1893. Geologie von Attika. Ein Beitrag zur Lehre vom Metamorphismus der Gesteine, Berlin 1983, Translation by Vougiouka G. Library Marasli, 592pp. Athens 1906.
Lozios, S., 1993. Structural analysis of the metamorphic rocks of NE Attica (Greece), Phd Thesis, University of Athens, 299pp.
Marinos, G., and Petrascheck, W. E., 1956. Laurium, Geological and Geophysical Research, IV, 247.
Marinos, G., Katsikatsios, G., and Mirkou-Peripopoulou, R., 1971. The Athens' schists formation, II. Stratigraphy and structure, Annales Géologique des Pays Hellénique, XXV, 183-216.
Marinos, G., and Symeonidis, Ν., 1974. Neue funde aus Pikermi (Attika, Griechenland) und eine allgemeine geologische Übersicht palaontologischen Raumes, Annales Géologique des Pays Hellénique, XXVI, 1-20.
Mettos, Α., 1992. Geological and paleogeographical study of the terrestrial Neogene and Quaternary rocks of NE Attica and of NE Beotia, Phd Thesis, Department of Geology, University of Athens, 259pp.
Papachatzis, N. I., 1953. Morphogenese research of the basin of Mesogaia, Annales Géologique des Pays Hellénique, V, 236-260.
Photiades, Α., and Carras, Ν., 2001. Stratigraphy and geological structure of the Lavrion area, Bulletin Geological Society of Greece, XXXIV/1, 103-109.
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