Strike-slip faulting in the central part of the Sanandaj-Sirjan Zone, Zagros Orogen, Iran

Nadimi, Alireza; Konon, Andrzej

doi:10.1016/j.jsg.2012.04.007

Cited by 36 publications

(9 citation statements)

References 45 publications

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“…Location of seismic events in Text- fig. 11 Wakabayashi 2007; Morley et al 2009;Babaahmadi et al 2010;Nadimi and Konon 2012).…”

Section: Discussionmentioning

confidence: 99%

“…Stepovers associated with strike-slip faulting, where the folds are modified in a contractional overlap of faults, and the length-to-width ratios range from 2.5 to 3, were described e.g., along the San Andreas Fault (Sylvester 1988;Wakabayashi et al 2004;Wakabayashi 2007), along the northern margin of the Sanandaj-Sirjan Zone in the Zagros Orogen (Morley et al 2009;Babaahmadi et al 2010), and in the central part of this zone (Nadimi and Konon 2012).…”

Section: Discussionmentioning

confidence: 99%

“…The tectonic block was horizontally sheared in a manner consistent with the simple shear 'card-deck model' (Nadimi and Konon 2012). The mean step lengths of the Hasan Robat, Pars and Najafabad stepovers are c. 50, 15 and 30 km, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Other structures useful for the precise identification of strike-slip movements in vertical cross-sections and on seismic profiles, as well as on geological maps and satellite images are: flower structures (e.g., Wilcox et al 1973), folds with a helicoidal geometry of the axial surfaces in restraining stepovers (Sylvester 1988;Babaahmadi et al 2010;Nadimi and Konon 2012), especially when they form an en échelon arrangement (Moody and Hill 1956;Jamison 1991;Woodcock and Schubert 1994), and vertical-axis rotated tectonic blocks bounded by major strike-slip faults (Woodcock and Fisher 1986;Mandl 1987;Sylvester 1988;Peacock et al 1998;Woodcock and Rickards 2003;Kim et al 2004;Konon 2007;Nadimi and Konon 2012). Apart from map-scale structures, identification of minor structures associated with major faults, such as slickensides observed within the near-surface parts of fault zones, horsetail splays, wing cracks or antithetic faults at the terminations of major faults, also demonstrate the presence of strike-slip movements.…”

Section: Introductionmentioning

confidence: 99%

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Mnin restraining stepover – evidence of significant Cretaceous–Cenozoic dextral strike-slip faulting along the Teisseyre-Tornquist Zone?

Konon¹,

Ostrowski²,

Rybak-Ostrowska³

et al. 2016

Acta Geologica Polonica

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ABSTRACT:Konon, A., Ostrowski, S., Rybak-Ostrowska, B., Ludwiniak, M., Śmigielski, M., Wyglądała, M., Uroda, J., Kowalczyk, S., Mieszkowski, R. and Kłopotowska, A. 2016. Mnin restraining stepover -evidence of significant Cretaceous-Cenozoic dextral strike-slip faulting along the Teisseyre-Tornquist Zone? Acta Geologica Polonica, 66 (3), 429-449. Warszawa.A newly recognized Mnin restraining stepover is identified in the Permo-Mesozoic cover of the western part of the Late Palaeozoic Holy Cross Mountains Fold Belt (Poland), within a fault pattern consisting of dextral strikeslip faults. The formation of a large contractional structure at the Late Cretaceous -Cenozoic transition displays the significant role of strike-slip faulting along the western border of the Teisseyre-Tornquist Zone, in the foreland of the Polish part of the Carpathian Orogen. Theoretical relationships between the maximum fault offsets/mean step length, as well as between the maximum fault offsets/mean step width allowed the estimation of the values of possible offsets along the Snochowice and Mieczyn faults forming the Mnin stepover. The estimated values suggest displacements of as much as several tens of kilometres. The observed offset along the Tokarnia Fault and theoretical calculations suggest that the strike-slip faults west of the Late Palaeozoic Holy Cross Mountains Fold Belt belong to a large strike-slip fault system.We postulate that the observed significant refraction of the faults forming the anastomosing fault pattern is related also to the interaction of the NW-SE-striking faults formed along the western border of the TeisseyreTornquist Zone and the reactivated WNW-ESE-striking faults belonging to the fault systems of the northern margin of the Tethys Ocean.

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“…Location of seismic events in Text- fig. 11 Wakabayashi 2007; Morley et al 2009;Babaahmadi et al 2010;Nadimi and Konon 2012).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mnin restraining stepover – evidence of significant Cretaceous–Cenozoic dextral strike-slip faulting along the Teisseyre-Tornquist Zone?

Konon¹,

Ostrowski²,

Rybak-Ostrowska³

et al. 2016

Acta Geologica Polonica

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“…This has been prepared by Mohajel and Eftekharnejad [14]. Nadimi and Konon [19] have studied strike-slip faults in the central part of Sanandaj-Sirjan zone in Zagros orogenic belt and active terminals of this faults in Zayandehrood river displacement. As total orientation of Sanandaj-Sirjan zone shows, the study area has many faults and fractures and folds which are in the same orientation as Sanandaj-Sirjan zone.…”

Section: Structural Geologymentioning

confidence: 99%

Remote stability control of hydraulic inwash structures at Stoilensky Mining and Processing Plant

Napolskikh¹,

Kryuchkov²,

Andrievsky³

et al. 2017

gzh

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Lack of geological and tectonical knowledge in a region causes hazard in project implementation. There are many examples related to this issue in Iran and the world. Main purpose of this research is to analyze the fractures because of their importance and effect on the implementation of engineering and civil engineering projects such as Khansar-Boien Miyandasht tunnel. For this purpose, the process and density of the fractures and their spatial-geometric position were investigated. Therefore, joints and faults in the Khansar syncline area and the site of Khansar-Boien Miyandasht tunnel were collected, then processed by interpreted in the software such as Stereo32 and Georient. According to the result, a group of joints can be related to pre-tectonics, another one can be related to syn-tectonics(folding and faulting) and some fractures are related to the post-tectonics . Geomechanically, syn-tectonic fractures are extensive in depth and these issues are very important, so it should be considered in implementing the project of Khansar tunnel. Results of the geological engineering study such as, uniaxial strength test, point loading, Schmidt hammer, and ultra-sonic Test were showed high-resistance massive orbitolina limestone , and alternation of shale , limestone , medium-resistance limestone and black slates include low resistance that lead to apply the supports with higher safety factor. Considering the tunnel direction (NNE-SSW), high slope fractures and tunnel tensions, it is possible to create sliding wedges in the left wall and left ceiling of the tunnel. Therefore, tunnel drilling should be performed cautiously by blasting method.

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Structural evidence for slip partitioning and inclined dextral transpression along the SE Sanandaj–Sirjan zone, Iran

Bafti

Mohajjel

2014

Int J Earth Sci (Geol Rundsch)

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Strike-slip faulting in the central part of the Sanandaj-Sirjan Zone, Zagros Orogen, Iran

Cited by 36 publications

References 45 publications

Mnin restraining stepover – evidence of significant Cretaceous–Cenozoic dextral strike-slip faulting along the Teisseyre-Tornquist Zone?

Mnin restraining stepover – evidence of significant Cretaceous–Cenozoic dextral strike-slip faulting along the Teisseyre-Tornquist Zone?

Remote stability control of hydraulic inwash structures at Stoilensky Mining and Processing Plant

Structural evidence for slip partitioning and inclined dextral transpression along the SE Sanandaj–Sirjan zone, Iran

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