Structural evolution and exhumation history of the Rhodope UHP-HP metamorphic province (Northern Greece)

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Publiée : Jan 1, 2001
DOI : https://doi.org/10.12681/bgsg.16945
A. KROHE
University of Muenster, Institute for Mineralogy, Laboratory for Geochronology
E. MPOSKOS
National Technical University of Athens, Section of Geological Sciences
Résumé

Middle/Early Alpine UHP-HP domain of the Rhodope (N'Greece) show pressures >3.6 Gpa. UHP-HP rocks have been emplaced in three major tectonic pulses: (i) At about 65->48 Ma the UHP Kimi Complex was exhumed at the surface representing the structurally uppermost UHP unit, (ii) Between > 42-30 Ma, the Sidironero, Kardamos and Kechros Complexes were exhumed underlying the Kimi Complex in the central and eastern Rhodope, respectively. They are characterized by HP-metamorphism (some parts by UHP-metamorphism), isothermal decompression and probably rapid exhumation. Exhumation tectonics involves deep level thrusting, synchronous high level extension, and successive post-thrusting extension. The post-thrusting Xanthi low angle normal detachment system extending over a distance of 100 km, from central Rhodope to eastern Rhodope, is interpreted to be responsible for a decrease in recent crustal thickness of about 20 km from central to eastern Rhodope. Lutetian (c. 48-43Ma) to Oligocene marine basins transgressed atop the Kimi Complex representing the upper plate of all detachment generations, (iii) The third exhumation pulse between 26 to 8 Ma, exhumed the Thasos/Pangeon metamorphic core complexes representing the structurally lowermost tectonic units of the Rhodope domain. Their exhumation occurred by displacements on the Miocene Strymon and Thasos detachment systems.

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  • Rubrique
  • General and Structural Geology
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Références
BIGAZZI, G, DEL MORO, Α., INNOCENTI, F., KYRIAKOPOULOS, Κ., MAUNETTI, P., PAPADOPOULOS, P., NORELLITI, P. AND MAGGANAS, Α. 1989. The magmatic intrusive complex of Petrola, West Thrace: Age and geodynamic significance. Geologica Rhodopica, V.l, 290-297.
BUCHER, Κ. AND FREY, M. 1994. Petrogenesis of metamorphic rocks. Springer Verlag, 318 pages, Berlin, 1994.
BURG, J.P., RICOU, E., IVANOV, Z., GODFRIAUX, I., DIMOV, D., AND KLAIN, L. 1996. Syn-metamorphic nappe complex in the Rhodope Massif. Structure and Kinematics. Terra Nova, 8, 6-15.
DEL MORO, Α., INNOCENTI, F., KYRIAKOPOULOS, Κ., MANNETTI, P. AND PAPADOPOULOS, P. 1988. Tertiary granitoids from Thrace (Northern Greece): Sr isotopie and petrochemical data. N.Jb.Miner.Abh. 159/2, 113-135.
DINTER, D.A. 1998. Late Cenozoic extension of the Alpine collision orogen, northeastern Greece: Origin of the north Aegean basin. Bull. Geol. Soc. Am. 110 (9), 1208-1230.
DINTER, D.A., MACFARLANE, Α., HAMES, W., ISACHSEN, C., BOWERING, S., AND ROYDEN, L. 1995: U-Pb and ^Ar/^Ar geochronology of the Symvolon granodiorite: implication for the thermal and structural evolution of the Rhodope metamorphic core complex, northerern Greece. Tectonics, 14 (4), 86-908.
KILIAS, Α., FALALAKIS, MOUNTRAKIS, D. 1997. Alpine tectonometamorphic history of the Serbomacedonian metamorphic rocks: Implication for the Tertiary unroofing of the Serbomacedonian-Rhodope metamorphic complexes (Macedonia, Greece), Mineral Wealth, 105, 9-27.
LIATI, A. 1986. Regional metamorphism and overprinting contact metamorphism of the Rhodope zone, near Xanthi N. Greece: Petrology, Geochemistry, Geochronology. Ph.D.thesis, Techn.Univ.Braunschweig.
LIATI, A. AND GEBAUER, D. 1999. Constraining the prograde and retrograde P-T-t path of Eocene HP rocks by SHRIMP dating of different zirkon domains: Inferred rates of heating, burial, cooling and exhumation for central Rhodope, northern Greece. Contrib. Mineral. Petrol. 135, 340-354.
LIATI, A. AND MPOSKOS, E. 1990. Evolution of the eclogites in the Rhodope zone of northern Greece. Lithos, 25, 89-99.
LIATI, A. AND SEIDEL, E. 1996. Metamorphic evolution and geochemistry of kyanite eclogites in central Rhodope, northern Greece. Contrib.Mineral.Petrol. 123: 293-307.
LIPS, A.L.W., WHITE, S.H, AND WIJBRANS, J. R. 2000. Middle-Late Alpine thermotectonic evolution of the southern Rhodope Massif, Greece. Geodinamica Acta, 13, 281-292.
MAKRIS, J. 1985. Geophysics and geodynamic implications for the evolution of the Hellenides. In Stanley, D.S. and Wezel, F.C. (eds), Geological evolution of the Mediterranean Basin. Springer Verlag, New York, p.231-248.
MPOSKOS, E. 1989. High-pressure metamorphism in gneisses and pelitic schists in the East Rhodope Zone (N.Greece). Mineral. Petrol, 41, 25-39.
MPOSKOS, E., KOSTOPOULOS, D. AND KROHE, A. 2001. Ultrahigh-pressure metamorphism from the Rhodope metamorphic province, Northeastern Greece: A preliminary report on a new discovery, Terra Abstracts (in press).
MPOSKOS, E. AND KROHE, A. 2000. Petrological and Structural evolution of Continental High Pressure (high-P) Metamorphic Rocks in the Alpine Rhodope Domain (N-Greece). In: Panayides, I., Xenophontos, C, and Malpas, J., (eds.), Proceedings of the 3.rd International Conf. on the Geology of the Eastern Mediterranean (Nicosia, Cyprus), 221-232, 2000.
MPOSKOS, E. AND LIATI, A. 1993. Metamorphic evolution of metapelites in the high-pressure terrane of the Rhodope zone, Northern Greece. Can.Mineral., 31, 401-424.
MPOSKOS, E. AND WAWRZENITZ, N. 1995. Metapegmatites and pegmatites bracketing the time of high Pmetamorphism in polymetamorphic rocks of the E-Rhodope, N.Greece: Petrological and geochronological constraints. Geol.Soc.Greece. Special Publications. N. 4/2, 602-608.
WAWRZENITZ, N. AND MPOSKOS, E. 1997. First evidence for Lower Cretaceous high-P/high-Γ metamorphism in the Eastern Rhodope, North Aegean Region, North-East-Greece. Eur. J.Mineral., 9, 659-664.
WAWRZENITZ, N. AND KROHE, A. 1998. Exhumation and doming of the Thasos metamorphic core complex (S. Rhodope, Greece): Structural and geochronological constraints. Tectonophysics, 285, 301-332.
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