Formulation of the conceptual model for the tectonic geomorphological evolution of an area: Five main rivers of Greece as a case study

Ntokos, Dimitrios

doi:10.1016/j.catena.2018.04.022

Cited by 7 publications

(9 citation statements)

References 32 publications

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“…In this study, the geospatial analysis of the tectonic activity and the quantitative description of Sperchios River catchment morphometric characteristics, along with their correlation to its hydrological response and the impact on flash-flood events were performed, using detailed RS The identical dynamic tectonic activity and intense geomorphological anaglyph of many watersheds of the Greek mainland depict the necessity of pursuing analogous thorough research efforts for the prevention of flash-flood phenomena. Numerous studies have been carried out in recent decades, trying to reveal and underline the necessity to investigate this dynamic state of different regions, such as those of Argyriou et al [12], Charizopoulos et al [29], and Ntokos [30].…”

Section: Discussionmentioning

confidence: 99%

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

et al. 2020

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Morphometric analysis can be used to investigate catchment dynamics and tectonic processes responsible for the development of drainage catchments and to support flood risk assessment. In this study, a comparative GIS-based morphometric analysis between the main southern and northern sub-catchments of the Sperchios River basin, Central Greece, was performed, using geospatial and remote sensing data. The goal was to investigate their correlation with the peculiar geotectonic activity and the frequent flash-flood events that occur in the river floodplain. All sub-catchments characteristics are linked with the geological formation types of the area, in combination with ongoing tectonic activity. The results indicate that drainage network development is significantly controlled by the region’s overall tectonic activity. The morphometric characteristics—i.e., bifurcation ratio, drainage density, circularity ratio, elongation ratio and water concentration–time values, reflect the flood-prone character of the southern part of Sperchios River catchment in comparison to the northern part, especially during intense rainfall events. The study can provide valuable insight into identifying how morphometric characteristics are associated with increased flood hazard.

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Section: Discussionmentioning

confidence: 99%

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

et al. 2020

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“…Geomorphological features, paleoseismological data (Boccaletti, Caputo et al, 1997;Boccaletti, Caputo, Pavlides, & Zouros, 1992;Pavlides, 1996;Ntokos, 2017aNtokos, , 2017cNtokos, , 2018 and recently recorded microseismic activity (Hatzfeld et al, 1995;King et al, 1983;Tselentis, Sokos, Martakis, & Serpetsidaki, 2006) point towards the recent, active state of the fault. According to Boccaletti, Caputo et al (1997), over the last 30,000 years, at least three incidents of tectonic paleo-activity are associated with this fault, while it is estimated that it was first activated several millions of years ago.…”

Section: Petousi-souli Faultmentioning

confidence: 94%

“…The greater area of Filippiada, between the settlement of Galini and up to the Arta Plain, features a major fault, extending along a total length of 46.5 km. The Kokkinopilos-Arta Fault is a part of the highly significant fault zone of Arta-Amfilochia, which represents a series of particularly long faults, generally trending NNW-SSE, which are parallel to the direction of thrusts and continue to the south, thereby defining the tectonic evolution in the eastern margin of Amvrakikos Gulf (Ntokos, Lykoudi, & Rondoyanni, 2016). This fault zone consists of a series of sinistral strike-slip faults and oblique-slip faults, generally trending NNW-SSE, same as the thrusts, with a southwestern dip.…”

Section: Kokkinopilos-arta Faultmentioning

confidence: 99%

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Neotectonic study of Northwestern Greece

Ntokos

2018

Journal of Maps

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In this paper, a neotectonic map with active faults, at a scale of 1:500,000, of the northwestern Greece is presented and discussed. The elaboration of the Neotectonic Map chiefly aimed at the identification, mapping and assessment of the faults in the region of Epirus, for the added purpose of assessing the area's seismic hazard. To this end, the related research was largely directed to the detailed study of the tectonic structures, which were classified as active, potentially active and non-active (or unknown age). It is noted that the activity of many old structures continues to this day, as shown by the Neotectonic analysis, in conjunction with the region's seismicity. The presence of extensive scree deposits on the hanging wall of many faults also indicates their re-activation. For the final compilation and presentation of the map, geological, geomorphological and seismological data were used and assessed. The objective of this map is to provide information about the neotectonic evolution of northwestern Greece.

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“…The roll-back led to the opening of the Gulf of Corinth and smaller E-W trending grabens in Aitoloakarnania [2], linked by the Katouna-Stamna fault [3] (Figure 1). In places in both Epirus and Aitoloakarnania, neotectonic orogen-transverse faulting appears to have diverted rivers to the west, transverse to the orogen [4,5]. Nevertheless, the scope and timing of changes in river courses remain uncertain.…”

Section: Introductionmentioning

confidence: 99%

The Response of the Rivers of NW Greece to Late Quaternary Neotectonics, as Interpreted from Detrital Petrology

Piper

Pe‐Piper

2022

Geosciences

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The modern drainage systems of the fold and thrust belt of the external Hellenide orogen of NW Greece are principally orogen-parallel. Late Quaternary changes in river courses have resulted from neotectonic deformation associated with the Katouna–Stamna fault and with footwall uplift in developing transverse grabens. This study assesses the impact of neotectonic deformation on river patterns and basin deposition. River sands show differences in modal abundance and varietal geochemistry of heavy minerals and fine sand lithic clasts, determined by scanning electron microscope, that allow identification of past river supply to raised fluvial terrace and beach deposits. In the past 200 ka, footwall uplift south of developing grabens at Lake Trichonis and the Amvrakikos Gulf promoted orogen-transverse flow, diverting the Arachthos-Louros rivers to the west, causing reversal of drainage to the north in the lower reach of the Acheloos River. A raised terrace gravel south of Preveza records the southwestward flow of a large paleo-Arachthos river, confirmed by sand petrology in beaches farther south on the Echinadon Sea coast. The use of varietal heavy minerals and lithic clasts is a rapid and powerful tool for tracking tectonically-induced changes in river patterns.

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Formulation of the conceptual model for the tectonic geomorphological evolution of an area: Five main rivers of Greece as a case study

Cited by 7 publications

References 32 publications

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

Neotectonic study of Northwestern Greece

The Response of the Rivers of NW Greece to Late Quaternary Neotectonics, as Interpreted from Detrital Petrology

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