Geometric and kinematic analysis and of Derenjal Mountain’ s faults, eastern block of Kalmard fault (Central Iran)

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Samadi Moghadam r.; NOZAEM R.; DEHBOZORGI M.; MOHAJJEL M.

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Journal: GEOSCIENCES Year:2018 | Volume:27 | Issue:107 Page(s): 75-86

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Title

Geometric and kinematic analysis and of Derenjal Mountain’ s faults, eastern block of Kalmard fault (Central Iran)

Author(s)

Samadi Moghadam r. | NOZAEM R. | DEHBOZORGI M. | MOHAJJEL M. | Issue Writer Certificate

Keywords

Geometric and kinematic analysisQ1

Structural evolutionQ1

Derenjal MountainQ1

Kalmard faultQ1

Central IranQ2

Abstract

Derenjal Mountains with NE-SW trend, is located in Central Iran, in northwest of Tabas block and in eastern block of Kalmard fault. In this region, the Paleozoic formations (Cambrian to Devonian) have been exposed and surrounded by Neogene and Quaternary deposits. Volcanic rocks of Cambrian limited to Diabasic Rocks Dominated in Kalshaneh Formation and Middle Jurassic (? ) lens-shape Andesite massive that covered uncomfortably with Cretaceous non metamorphosed limestone. Kalmard fault as an old basement and active fault in Central Iran as Principal Displacement Zone (PDZ) and adjacent deformed Deranjal Mountains, have a complex deformation history with respect to rotation of the Compressional Incremental Kinematic Axis during Geological time scale since late Paleozoic to late Cenozoic. Rotation in Central Iran blocks, changing of the convergence direction of Afro-Arabian plate with respect to Iran and also structural interaction between the Central Iran blocks, during tectonic evolutions, imposed the rotation of the Incremental Kinematic Axis (P-T-B) directions with respect to Derenjal Mountains and Kalmard fault. These process made progressively new structures and also made changes in old structures since post Devonian. In this study, based of Field observation and geometric-kinematic structural Analysis of the more the 150 fault data, the architecture of fault assemblage of Derenjal area demonstrate Synthetic faults (P, R), antithetic faults (X, R’ ), compression faults (C2) faults and folding in F1 Class in Derenjal Area. These structures represent that the Compressional Incremental Kinematic Axis trend has been changed in anticlockwise direction from perpendicular to parallel with respect to Kalmard fault since post Devonian to Late Cenozoic and finally superimposition of the strike slip tectonics on the contraction tectonics.

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APA: Copy

Samadi Moghadam, r., NOZAEM, R., DEHBOZORGI, M., & MOHAJJEL, M.. (2018). Geometric and kinematic analysis and of Derenjal Mountain’ s faults, eastern block of Kalmard fault (Central Iran). GEOSCIENCES, 27(107 ), 75-86. SID. https://sid.ir/paper/31571/en

Vancouver: Copy

Samadi Moghadam r., NOZAEM R., DEHBOZORGI M., MOHAJJEL M.. Geometric and kinematic analysis and of Derenjal Mountain’ s faults, eastern block of Kalmard fault (Central Iran). GEOSCIENCES[Internet]. 2018;27(107 ):75-86. Available from: https://sid.ir/paper/31571/en

IEEE: Copy

r. Samadi Moghadam, R. NOZAEM, M. DEHBOZORGI, and M. MOHAJJEL, “Geometric and kinematic analysis and of Derenjal Mountain’ s faults, eastern block of Kalmard fault (Central Iran),” GEOSCIENCES, vol. 27, no. 107 , pp. 75–86, 2018, [Online]. Available: https://sid.ir/paper/31571/en

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