Neotectonics of the Central Kopeh Dagh drainage basins, NE Iran

Ezati, Maryam; Gholami, Ebrahim

doi:10.1007/s12517-022-10280-6

Cited by 6 publications

(9 citation statements)

References 37 publications

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“…If the Af factor value is close to 50, the catchment has little or no tilting with stable conditions of development. The authors of [6,55,56] state that an Af factor below or above 50 may result from catchment tilting, lithological structural control or active tectonics. In this paper, the values of Af are calculated as Af-50, and provide the difference value between the observed value and the neutral value of 50.…”

Section: Asymmetric Factor Index (Af)mentioning

confidence: 99%

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GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

et al. 2023

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In this paper, we apply an effective method to evaluate relative tectonic activity by applying several morph-tectonic indices that are useful in evaluating topography and tectonics. These indices include stream length-gradient, asymmetric factor, hypsometric index, hypsometric curves, valley floor width to valley height ratio, drainage basin shape, and mountain front sinuosity. The study region of Wadi Al-Arish in northern Sinai Peninsula in northern Egypt is a natural laboratory to examine relative tectonic activity levels for calculating morpho-tectonic indices of several catchments and sub-catchments rather than an individual catchment. Northern Sinai, comprising the Waid Al-Arish area, is characterized by several large inversion anticline folds. The cumulative results extracted from morpho-tectonic indices ae presented as a new index, namely relative tectonic activity level (RTAL), which we classified into four levels: low, moderate, high, and very high relative tectonic activity. Therefore, the study region provides different levels of relative tectonic activity resulting from fault patterns affecting the northern Sinai inversion forms. The paper examines the concept that regions with various levels of tectonic activity are associated with specific values of RTAL.

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Section: Asymmetric Factor Index (Af)mentioning

confidence: 99%

“…The Hi index is described as the area below the hypsometric curves, and thus defines the catchment volume that has no erosion evidence. The basic formula for calculating this index [54,55,59] is:…”

Section: Hypsometric Integral Index (Hi)mentioning

confidence: 99%

GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

et al. 2023

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“…[20] established a hydraulic and hydrologic model for the Ayamama River in Turkey. Using GIS technique to generate digital elevation models (DEMs) and extract watersheds and drainage systems is one of the most effective methods in the geospatial technologies [22,23]. The remote sensing technique has provided temporal and spatial information for more accurate monitoring.…”

Section: Introductionmentioning

confidence: 99%

Morphometric-hydro Characterization of the Coastal Line between El-Qussier and Marsa-Alam, Egypt: Preliminary Flood Risk Signatures

et al. 2022

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Egypt is highly exposed to flash flood hazards, particularly in Sinai Peninsula and along the Red Sea coast, causing sudden and huge damages to constructions and huge losses in human lives during a very short time. This paper investigates the dominant characterization of morphometrical features and their relationships with the hydrological behaviors along an important strip of the western Red Sea coast. The study focuses on analyzing the October 2009 and 2019 storm events along the coastal area between EL-Qussier and Marsa Alam in order to intiate a preliminary flood risk assessment model. Morphometric features along the entire study zone provide a complete scenario of the nature of the catchments and sub-catchments development. Numerous morphometric indexes such as catchments geometry, areal indexes, linear indexes, and relief indexes were examined through processing different sets of data. Modern techniques such as remote sensing and geospatial analysis were applied to process different spatial and spectral data. The hydrological model (HEC-HMS) in the WMS software was run to delineate the catchments and sub-catchments and extract the peak flow hydrograph curves for the main catchments. The results of the water amounts and peak flow were calculated using the SCS unit hydrograph approach. The hydrological characteristics of the major catchments reveal conditions for moderate levels of flash flooding. The study ended with a number of recommendations that could minimize the negative effects of the flash flood hazards.

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“…Moreover, in this research, the structural style of the study area was investigated using geometrickinematic analysis. This methodology has been found to be useful in places such as northeast Iran [14,15]; the Himalayan fold-thrust belt [16]; the Andes [17]; the Zagros mountain range [18], the Mosha fault in the Central Alborz range, Iran [19]; NE Ghats Province, India [20], the western Ordos fold-thrust belt, China [21]; the NW Zagros Mountains, Kurdistan Region, Iraq [22]; and Shekarab Mountain in eastern Iran [23,24].…”

Section: Introductionmentioning

confidence: 99%

Active Deformation Patterns in the Northern Birjand Mountains of the Sistan Suture Zone, Iran

et al. 2022

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In this paper, faults, one of the most important causes of geohazards, were investigated from a kinematic and geometric viewpoint in the northern part of the Sistan suture zone (SSZ), which serves as the boundary between the Afghan and Lut blocks. Furthermore, field evidence was analyzed in order to assess the structural type and deformation mechanism of the research area. In the northern Birjand mountain range, several ~E–W striking faults cut through geological units; geometric and kinematic analyses of these faults indicate that almost all faults have main reverse components, which reveals the existing compressional stress in the study area. The northern Birjand mountain range is characterized by four main reverse faults with ~E–W striking: F1–F4. The F1 and F2 reverse faults have southward dips, while the F3 and F4 reverse faults have northward dips. Moreover, the lengths of the F1, F2, F3, and F4 faults are 31, 17, 8, and 38 km, respectively. These faults, with reverse components that have interactive relationships with each other, form high relief structures. The study area’s main reverse faults, including F1 to F4, are extensions of the Nehbandan fault system, while their kinematics and geometry in the northern Birjand mountain range point to an N–S pop-up structure.

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Neotectonics of the Central Kopeh Dagh drainage basins, NE Iran

Cited by 6 publications

References 37 publications

GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

Morphometric-hydro Characterization of the Coastal Line between El-Qussier and Marsa-Alam, Egypt: Preliminary Flood Risk Signatures

Active Deformation Patterns in the Northern Birjand Mountains of the Sistan Suture Zone, Iran

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