MORPHOTECTONIC ANALYSIS IN THE ELIKI FAULT ZONE (GULF OF CORINTH, GREECE)

PDF (English)
Δημοσιευμένα: Jan 1, 2004
DOI: https://doi.org/10.12681/bgsg.16578
S. Verrios
Department of Geology, University of Patras
V. Zygouri
Department of Geology, University of Patras
S. Kokkalas
Department of Geology, University of Patra
Περίληψη

Morphotectonic analysis using geomorphic indices has been developed as a basic reconnaissance tool in order to identify areas experiencing rapid tectonic deformation or estimate relative variations of tectonic activity in a specific area. We applied this analysis in Eliki fault zone, which is located in the western part of the Gulf of Corinth. Eliki fault zone was selected because it displays a spectacular geomorphic expression and hosts historic and recent seismicity. The intensity of active tectonics is interpreted through a detailed geomorphic study of the fault-generated mountain fronts and fluvial systems. Tectonic geomorphology analysis of the Eliki footwall area includes the application of the most commonly used geomorphic indices, such as the mountain front sinuosity index (Smf), the valley floor / width ratio index (Vf), the stream gradient index (SL) and the transverse topographic symmetry factor (T). These indices were estimated on topographic maps and aerial photographs of the study area in order to correlate active tectonics and erosional processes. Our results imply that the Eliki fault zone can be assigned to a tectonic class of the higher tectonic activity. However, spatial variations of tectonic activity along the segmented studied fronts point to a general trend of increasing activity towards the east, which is gradually decreasing towards the west.

Λεπτομέρειες άρθρου
  • Ενότητα
  • Τεκτονική και Γεωδυναμική
Creative Commons License

Αυτή η εργασία είναι αδειοδοτημένη υπό το CC Αναφορά Δημιουργού – Μη Εμπορική Χρήση 4.0.

Οι συγγραφείς θα πρέπει να είναι σύμφωνοι με τα παρακάτω: Οι συγγραφείς των άρθρων που δημοσιεύονται στο περιοδικό διατηρούν τα δικαιώματα πνευματικής ιδιοκτησίας επί των άρθρων τους, δίνοντας στο περιοδικό το δικαίωμα της πρώτης δημοσίευσης. Άρθρα που δημοσιεύονται στο περιοδικό διατίθενται με άδεια Creative Commons 4.0 Non Commercial και σύμφωνα με την οποία μπορούν να χρησιμοποιούνται ελεύθερα, με αναφορά στο/στη συγγραφέα και στην πρώτη δημοσίευση για μη κερδοσκοπικούς σκοπούς. Οι συγγραφείς μπορούν να: Μοιραστούν — αντιγράψουν και αναδιανέμουν το υλικό με κάθε μέσο και τρόπο, Προσαρμόσουν — αναμείξουν, τροποποιήσουν και δημιουργήσουν πάνω στο υλικό.

Λήψεις
Τα δεδομένα λήψης δεν είναι ακόμη διαθέσιμα.
Αναφορές
Ambrasseys N. N., Jackson J. 1990. Seismicity and associated strain of central Greece between 1890 and 1988. Geophysical Journal International 101, 663 - 708.
Ambrasseys N.N., Jackson J. 1997. Seismicity and strain in the Gulf of Corinth (Greece) since 1694. Journal of Earthquake Engineering 1, 433-474.
Bull W. 1977a. Tectonic geomorphology of the Mojave Desert. U.S. Geol. Surv. Contact Rep. 14-08-001-G- 394, Office of Earthquakes, Volcanoes and Engineering, Menlo Park, Calif., 188.
Bull W. 1978. Geomorphic tectonic activity classes of the south front of the San Gabriel Mountains, California. U. S. Geol. Surv. Contact Rep. 14-08-001-G-394, Office of Earthquakes, Volcanoes and Engineering, Menlo Park, Calif., 59.
Bull W., and McFadden L, 1977. Tectonic geomorphology north and south of the Garlock Fault, California, Geomorphology in Arid regions, D. O. Doehring, ed., Publications in Geomorphology, State University of New York at Bingamton, 115 - 138.
Burbank D. W., Anderson R. S., 2001. Tectonic geomorphology. Blackwell Science, USA, 274.
Clarke P. J., Davies R. R., England P. C, Parsons B. E., Billiris H., Paradissis D., Veis G., Denys P. H., Cross P. Α., Askenazi V, Bingley R., 1997. Geodetic estimate of seismic hazard in the Gulf of Korinthos. Geophysic. Res. Lett. 24, 1303 - 1306.
Cox R.T. 1994. Analysis of drainage basin symmetry as a rapid technique to identify areas of possible quaternary tilt block tectonics: an example from the Mississippi embayment. Geol. Soc. Am. Bull. 106, 571 - 581.
Doutsos T., Piper D. J. W., 1990. Listric faulting, sedimentation and morphological evolution of the quaternary eastern Corinth rift, Greece: first stages of continental rifting. Bull. Geol. Soc. Am. 102, 812 - 829.
Doutsos T., and Poulimenos G., 1992. Geometry and kinematics of active faults and their seismotectonic significance in the western Corinth - Patras rift (Greece). Journal of Structural Geology 14, 689 - 699.
Doutsos T., Kokkalas S., 2001. Stress and deformation patterns in the Aegean region. Journal of Structural Geology 23, 455 - 472.
Hack J., 1973. Stream profile analysis and stream gradient index, U. S. Geol. Surv. J. Res. 1, 421 -429.
Jackson J. A. Gagnepain J., Houseman G., King G. C. P., Papadimitriou P., Soufleris C, Vireux J., 1982. Seismicity, normal faulting, and the geomorphological development of the Gulf of Corinth (Greece): the Corinth earthquakes of February and March 1981. Earth and Planetary Science Letters 57, 377 - 397.
Jackson J. Α., McKenzie D. P., 1988. Rates of active deformation in the Aegean Sea and surrounding areas. Basin Research 1, 121 - 128.
Jackson J. Α., 1994. Active tectonics of the Aegean region. Annual review of Earth and Planetary Science Letters22, 239 - 271.
Keller E., 1986. Investigation of active tectonics: use of surficial earth processes. In: Wallace, R. E. (eds), Active Tectonics studies in Geophysics. Nat. Acad. Press, Washington, Dc, 136 - 147.
Keller E., and Pinter, N., 2001. Active Tectonics, Earthquakes, Uplift and Landscape, Earth Sciences Series, Prentice - Hall, Englewood Cliffs, NJ..
King G. C. P., Ouyang Z. X., Papadimitriou P., Deschamps Α., Gagnepain, L., Houseman G., Jackson J. Α., Soufleris C, Virieux J., 1985.
The evolution of the Gulf of Corinth (Greece): an aftershock study of the 1981 earthquakes. Geophysical Journal, Royal Astronomical Society 80, 677 - 693.
Koukouvelas I. K., 1998a. Transfer zones along active normal faults in Peloponnesus, Greece. Bull. Geol. Soc. Greece 32, 221 -229.
Koukouvelas I. K., 1998b. The Egion fault, earthquake - related and long - term deformation, Gulf of Corinth, Greece. Journal of Geodynamics 26, 501 - 5 13.
Koukouvelas I., Stamatopoulos L., Katsonopoulou D., and Pavlides S., 2001. A paleoseismological and geoarchaeological investigation of Eliki fault, Gulf of Corinth, Greece, Journal of Structural Geology 23, 531 - 543.
Le Pichon X., Angelier J., 1981. The Aegean Sea. Philosophical Transactions of the Royal Society of London 300,357 - 372.
McKenzie D. P., 1978. Active tectonics of the Alpine - Himalayan belt: the Aegean Sea and surrounding regions. Geophysical Journal of the Royal Astronomical Society 55, 217 - 254.
Papazachos B. C, Papazachou C, 1997. The earthquakes of Greece. Ziti, Thessaloniki, 304.
Pavlides S., Koukouvelas I., Kokkalas S., Stamatopoulos L, Keramydas D., and Tsodoulos I., 2004. Late Holocene evolution of the East Eliki fault, Gulf of Corinth (Central Greece), Quaternary International, 115-116, 139-154.
Piper D. J. W., Stamatopoulos L., Poulimenos G., Doutsos T., Kontopoulos N., 1990. Quaternary history of the Gulfs of Patras and Corinth, Greece. Zeitschrift fur Geomorphologie 34, 451 - 458.
Poulimenos G., Doutsos T., 1996. Barriers on seismogenic faults in central Greece. J. Geodynamics 22, 119 - 135.
Roberts G. P., Koukouvelas I. K., 1996. Structural and seismological segmentation of the Gulf of Corinth fault system: implication for models of fault growth. Annali di Geophysica 39, 619 - 646.
Rockwell T., Keller E., Johnson D., 1984. Tectonic geomorphology of alluvial fans and mountain fronts near Ventura, California. In: Morisawa, M., Hack T. J. (eds), Tectonic Geomorphology. Pubi. In Geomorphology, State University of new York, Binghamton, 183 - 207.
Schumm S. Α., 1986. Alluvial river response to active tectonics. In: Active Tectonics, Studies in Geophysics. National Academy Press, Washington DC, 80 -94.
Silva P., Goy J., Zazo C, Bardaji T., 2003. Fault - generated mountain fronts in southeast Spain: géomorphologie assessment of tectonic and seismic activity. Geomorphology 50, 203 - 225.
Wells S. G., Bullard T. F., Menges C. M., Drake P.G., Karas P. Α., Kelson K. I., Ritter J. B., Wesling J. R., 1988. Regional variations in tectonic geomorphology along a segmented convergent plate boundary, Pacific coast of Costa Rica. Geomorphology 1, 239 - 265.
Τα περισσότερο διαβασμένα άρθρα του ίδιου συγγραφέα(s)