فهرست مقالات Transpression

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  1 - Tectonic geomorphology assessment of neotectonics in the north of Damghan region, Alborz mountain belt, Northern Iran
  Mersana Keshavarz Farzin Ghaemi Ali Faghih Mostafa Ghanadian
  10.30495/ijes.2021.685388
  In mountain ranges, neotectonics can be considered as the main factor contributing to tectonic-geomorphological features being the result of the competition between tectonics and erosion. Several tectonic-geomorphological indicators such as drainage basin based (asymmet چکیده کامل

  In mountain ranges, neotectonics can be considered as the main factor contributing to tectonic-geomorphological features being the result of the competition between tectonics and erosion. Several tectonic-geomorphological indicators such as drainage basin based (asymmetry factor of drainage basin (Af), hypsometric integral (Hi)) and mountain front based (mountain-front sinuosity (Smf), valley floor width –valley height ratio (Vf)) were used to assess the tectonic activity in the north of Damghan Region, Alborz Mountain Belt, Iran. The results highlight that the tectonic activity of the Alborz region resulted from the growth of pop-up and flower structures during tectonic inversion and following strike-slip tectonic activities. The faults of Astaneh, Damghan and North Damghan, which collectively constitute the SW part of the sinistral Shahrud fault system control the tectonic activity of the study area during the Late Quaternary. پرونده مقاله
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  2 - Kinematics of Transpressional Deformation Zones in the Urmia Fault Zone, Northwest Iran
  Hassan Haji Hosseinlou
  Metamorphic and various intrusive rocks in the Urmia area are located in a transpressed active continental margin. These complexes in the Zagros orogen were deformed during an oblique convergence scenario between the Arabian and Sanandaj–Sirjan blocks in NW Iran. چکیده کامل

  Metamorphic and various intrusive rocks in the Urmia area are located in a transpressed active continental margin. These complexes in the Zagros orogen were deformed during an oblique convergence scenario between the Arabian and Sanandaj–Sirjan blocks in NW Iran. The Urmia area contains both NW-SE striking dextral strike-slip and SW verging NE dipping ductile reverse shear fabrics. Ductile shear fabrics are overprinted by subsequent younger thrust and strike-slip fault systems. Abundant syn-tectonic granitoides have been intruded into the Urmia area during convergent. Shear deformation fabrics are well identified in both deformed intrusive and metamorphic rocks. The geometry and kinematics of shear fabrics indicate a deformation partitioning in both ductile and brittle conditions during a progressive transpression tectonic regime. پرونده مقاله