Detecting a Sinistral Transpressional Deformation Belt in the Zagros

Mohammad Ali Ghanbarian; Ali Yassaghi; Reza Derakhshani

doi:10.3390/geosciences11060226

Detecting a Sinistral Transpressional Deformation Belt in the Zagros

Mohammad Ali Ghanbarian, Ali Yassaghi, Reza Derakhshani

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

The oblique collision between the northeastern margin of the Arabian platform and the Iranian microcontinent has led to transpressional deformation in the Zagros orogenic belt in the central part of the Alpine–Himalayan orogenic belt. Although previous articles have emphasized the dextral sense of shear in the Zagros orogenic belt, in this paper, using several indicators of kinematic shear sense upon field checking and microscopic thin-section studies, evidence of the development of a sinistral top-to-the NW deformation belt is presented. The mean attitudes of the foliations and lineations in this belt are 318°/55°NE and 19°/113°, respectively.

Original language	English
Article number	226
Pages (from-to)	1-18
Number of pages	18
Journal	Geosciences
Volume	11
Issue number	6
DOIs	https://doi.org/10.3390/geosciences11060226
Publication status	Published - 24 May 2021

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

Iran
Sanandaj–Sirjan metamorphic belt
Shear sense
Tectonics
Transpression
Zagros

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abstract = "The oblique collision between the northeastern margin of the Arabian platform and the Iranian microcontinent has led to transpressional deformation in the Zagros orogenic belt in the central part of the Alpine–Himalayan orogenic belt. Although previous articles have emphasized the dextral sense of shear in the Zagros orogenic belt, in this paper, using several indicators of kinematic shear sense upon field checking and microscopic thin-section studies, evidence of the development of a sinistral top-to-the NW deformation belt is presented. The mean attitudes of the foliations and lineations in this belt are 318°/55°NE and 19°/113°, respectively. ",

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Detecting a Sinistral Transpressional Deformation Belt in the Zagros

Abstract

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Keywords

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