Paleostress Analysis in the Northern Birjand, East of Iran: Insights from Inversion of Fault-Slip Data

This research assessed stress regimes and fields in eastern Iran using fault-slip data the tectonic events associated with these changes. Our analysis of brittle structures Shekarab Mountains revealed significant changes from late Cretaceous to Quaternary. Reconstructing age sense fault movements showed that during Cretaceous, direction maximum horizontal axes (?1) under a compressional regime was ~N290°. led uplifting ophiolites peridotites Iran. During Eocene, ?1 NE-SW. The Eocene Oligocene states two distinct transpression transtension regimes. transition consequence regional variations Quaternary state indicates is strike-slip ~N046°, which coincides current convergence Arabia–Eurasia plates. paleostress four have been recognized area, including compressional, transtensional, transpressional, findings indicated diversity responsible for formation variety geological structures, folds different axes, faults mechanisms, configuration Sistan suture zone.