EVIDENCES OF ACTIVE FAULTING IN THRACE REGION (NORTHEASTERN GREECE)

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Publiée : Ιαν 1, 2004
DOI : https://doi.org/10.12681/bgsg.16572
Th. Rondoyanni
Institute of Geology and Mineral Exploration
Ch. Georgiou
Institute of Geology and Mineral Exploration
D. Galanakis
Institute of Geology and Mineral Exploration
M. Kourouzidis
Institute of Geology and Mineral Exploration
Résumé

Active oblique to strike-slip faults were identified in southern Thrace (northeastern Greece), on the basis of field observations, geological mapping, analysis of geometrical and dynamic characteristics of recent tectonic structures as well as evaluation of their seismic potential. The seismic activity refers mainly to strong earthquakes occurring under the sea, while a minor number of seismic epicenters have been registered on land. According to the historic and recent data, most seismic destructions in this region are due to the influence of the North Anatolian Fault and North Aegean Trough system. The diachronic activity of several faults and the changes in the movement type from clearly normal to oblique-normal or strike-slip, have left clear signs on the existing polished fault planes. Among the numerous faults determined in Thrace, some of them can be characterized as active, according to their geological and morphotectonic characteristics. Taking in to account the faults length, the specific seismotectonic conditions prevailing over the Hellenic territory and the existed empirical relationships, the maximum displacement in case of seismic reactivation was estimated.

Article Details
  • Rubrique
  • Tectonics and Geodynamics
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Références
Carey-Gailhardis E. & Mercier J. L, 1987: A numerical method for determining the state of stress using focal mechanisms of earthquake populations. Earth planet. Sci. Lett. 82, p.165-179.
Karfakis I., 1991 .Application of remote sensing techniques in Geology and Mineral exploration of eastern Rhodope region (Northern Greece). Ph. D. Thesis, Patras Univ., p. 185.
Katsikatsos G., 1992: Geology of Greece, Athens.
Kiratzi Α., 2002: Stress tensor inversions along the westernmost North Anatolian Fault Zone and its continuation into the North Aegean Sea. Geophys. J. Int. 151, p. 360-376.
Kiratzi Α., Louvari E., 2003: Focal mechanisms of shallow earthquakes in the Aegean Sea and the surrounding lands determined by waveform modeling : a new database. Journal of Geodynamics 36, p. 251-274.
KockeL, F., Walther, H.W., 1965: Die Strimonlinie als Grenze zwischen Serbo-Mazedonischen und Rila- Rhodope-Massiv in Ost-Mazedonien. Geol. Jb., 83, 575-602, Hannover.
Kopp, K.O., 1965: Geologie Trhakiens II: Das Tertiär zwischen Rhodope und evros. Ann. Geol. Pays hellen., 46, 315
Koukouvelas, I.K. and Aydin Α., 2002. Fault structure and related basins of the North Aegean Sea and its surroundings. Tectonics, 21(5), 1046.
Kronberg, P., Meyer, W., Pilger, Α., 1970: Geologie der Rila-Rhodope-Masse zwischen Strimon und Nestos (Nordgriechenland). Beih. Geol. Jb., 88, p. 133-180, Hannover.
Laiechos N., Savoyat Ed., 1979: La sedimentation néogène dans le fossé nord-égéen. VI Coll. On the Geology of the Aegean region, vol. II, p. 591-603.
Maratos G., Andronopoulos V., 1965: The fauna of limestones of Aliki-Alexandroupolis, (Rhodope phyllites). Bull. Geol. Soc. Grercr, 6 (2), 348-352 (in Greek).
Mercier J., Sorel D., Simeakis K., 1987: Changes in the state of stress in the overriding plate of a subduction zone: the Aegean Arc from the Pliocene to the Present. Annales tectonicae. Vol. 1, No 1, 20-39.
Mouyiaris N., 1994: The seismic History of the Aegean land (from 2400 B.C. to 1990 A.D). Ph.D. Thesis. P. 440, Univ. of Patras.
Papadopoulos P., 1980: Geological Map of Greece scale 1:50.000, sheet Ferai-Peplos-Ainos. I.G.M.E. Athens.
Papazachos, B.C. & Papazachou, C, 199): The earthquakes of Greece. Ziti Ed Thessaloniki.
Papadakis L. & Galanakis D., 1991: Correlation of active/seismic faults with the main route and branches of natural gas pipeline. Main Part Neotectonic study. D.E.P.AVASPROFOS. Athens.
Pavlides S., Mountrakis D., Kllias Α., Tranos M., 1990: The role of strike-slip movements in the extensional area of Northern Aegean (Greece). A case of transtensional tectonics. Annales Tectonicae. Special Issue Vol. IV n.2, p. 196-211.
Roussos N., Lyssimachou TR., 1991: Structure of the Central North Aegean Trough: an active strike-slip deformation zone. Basin Research 3, 39-48.
Wells D. & Coppersmith ,1994. New empirical relationships among magnitude, rupture length, rupture area and surface displacement. Bull. Seism. Soc. Amer., vol. 84, No 4, pp.974-1002.
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