Morphotectonic analysis of faults in Sperchios Basin (Fthiotis, Central Greece).

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Published: Dec 2, 2013
DOI: https://doi.org/10.12681/bgsg.10952
Keywords:
segmentation morphotectonic indices Sperchios basin central Greece active tectonics
M. Michail
Aristotle University, Department of Geology, 54124, Thessaloniki, Greece
A. Chatzipetros
Aristotle University, Department of Geology, 54124, Thessaloniki, Greece
Abstract

This paper aims to study one of the major neotectonic, fault-controlled, features of the Hellenides, Sperchios basin, with the application of specific morphotectonic indices. The study area includes well exposed fault-bounded mountain fronts with dominant footwall relief. The most prominent structures of this WNW-ESE trending neotectonic basin are WNW-ESE to NW-SE trending faults, the most prominent of which is the Sperchios Fault System (SFS) causing mainly subsidence toward the NNE. The antithetic Coastal Fault System (CFS) also forms a distinct, yet gentler relief at the NE basin boundary. The segmentation of these neotectonic faults allowed detailed measurements, based on morphotectonic characteristics, of each segment separately. Mountain-front sinuosity (Smf) as well as the ratio of valley floor width to valley height (Vf) were among the indices used in this study and contributed to the identification of the potential fault activity. The results show that there is a strong correlation between uplift rates and the morphotectonic signature of faulting, as well as a clear morphotectonic differentiation of fault segments.

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  • Section
  • Geomorphology
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References
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 Geomor-phology, State University of New York at Bingamton, 115–138.
Bull W. 2007. Tectonic geomorphology of mountains: a new approach to paleoseismology. Wiley-Blackwell; 1 edition.
Bull W. 2009. Tectonically Active Landscapes. Wiley-Blackwell; 1 edition.
Cox R.T. 1994. Analysis of drainage basin symmetry as a rapid technique to identify areas of pos-sible quaternary tilt block tectonics: an example from the Mississippi embayment, Geol. Soc. Am. Bull., 106, 571 – 581.
Eliet P.P. and Gawthorpe R.L. 1995. Drainage development and sediment supply within rifts, ex-amples from the Sperchios Basin, central Greece, Journal of the Geological Society of Lon-don, 152, Part 5, 883-893.
Ganas A. 1997. Fault segmentation and seismic hazard assessment in the Gulf of Evia Rift, central Greece. Unpublished PhD thesis, University of Reading, 369 pp.
Ganas A. and Papoulia I., 2000. High-resolution, digital mapping of the seismic hazard within the Gulf of Evia Rift, Central Greece using normal fault segments as line sources, Nat. Hazards, 22(3), 203-223.
Gawthorpe R.L. and Leeder M.R. 2000. Tectono-sedimentary evolution of active extensional basins, Basin Research, 12, 195–218
IGME 1967. Geological map of Greece, scale 1:50,000, Lamia sheet. Institute of Geology and Mineral Exploration, Athens.
IGME, 1970. Geological map of Greece, 1:50,000, Sperchias sheet, Institute of Geology and Min-eral Exploration, Athens.
Keller A.E.and Pinter N. 1996. Active Tectonics: Earthquakes, Uplift and Landscape, Prentice Hall, 338 p.
Keller E. 1986. Investigation of active tectonics: use of surficial earth processes. In: Wallace, R.E. (Ed.), Active Tectonics. Studies in Geophysics. Nat. Acad. Press, Washington, DC, p136-147.
Kilias A., Tranos M., Papadimitriou E., Karakostas V., 2008. The recent crustal deformation of the Hellenic orogen in Central Greece; the Kremasta and Sperchios Fault Systems and their re-lationship with the adjacent large structural features, Z. dt. Ges. Geowiss., 159/3, 533-547.
Kranis H.D. 1999. Neotectonic activity of fault zones in central-eastern mainland Greece (Lokris). Ph.D. Thesis.
Psomiadis E. 2010. Research of geomorphological and environmental changes in the Sperchios River Basin utilizing new technologies, Ph.D. Thesis.
Tzanis E., Kranis H. and Chailas S. 2010. An investigation of the active tectonics in central Greece with imaging and decomposition of topographic data, Journal of Geodynamics, 49, 55-67.
Zovoili E., Konstantinidi E. and Koukouvelas I.K. 2004. Tectonic geomorphology of escarpments: the cases of Kompotades and Nea Anchialos faults, Bulletin of the Geological Society of Greece, 36, 1716-1725.
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