Article
Geosciences, Multidisciplinary
David A. Ferrill, Kevin J. Smart, Adam J. Cawood, Alan P. Morris
Summary: The interaction of evolving stress regimes and mechanical stratigraphy leads to a progressive deformation sequence in fold-thrust belts and foreland areas. Mesoscale deformation can include tensile, hybrid, shear, compactive shear, and compactive failure, occurring simultaneously in adjacent layers. A conceptual model is presented to explain the development and eventual waning of fold-thrust belt activity, identifying five stages of deformation. This model can be used to predict mesostructural suites, explain apparently anomalous structures, and infer paleostress history.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Multidisciplinary Sciences
Mohammad Ali Ghanbarian, Reza Derakhshani
Summary: The structural architecture and folds and faults relationships of a significant segment of the south-central part of the Zagros' hinterland are investigated. This study found at least two major deformation events in this area, one older than the Eocene and the other younger than the early Miocene.
SCIENTIFIC REPORTS
(2022)
Article
Geosciences, Multidisciplinary
G. Behzad Zamani
Summary: Stress measurement is crucial in Earth and petroleum sciences. This paper determines the stress state in the Zagros Mountains using analytical techniques and identifies stress patterns and structural control in different zones.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geology
Farhad Ahmadnejad, Giovanni Mongelli
Summary: Iranian's karst bauxites, part of the Irano-Himalayan bauxite belt, are associated with the Zagros Fold-Thrust Belt (ZFTB) and exhibit different compositions reflecting varied paleoenvironmental conditions. The composition of ooidal concretions in the bauxites indicates periods of humid tropical climate followed by intermittent dry-to-wet conditions. Ce/Ce* distribution in the bauxites suggests paleoredox evolution during bauxitization, with different patterns observed in different deposits. The provenance proxies indicate a UCC-like protolith for the ZFTB bauxite deposits, derived primarily from bedrock argillaceous sediments.
SEDIMENTARY GEOLOGY
(2023)
Article
Multidisciplinary Sciences
Abdullah T. Othman, Abdulla Amir Omar
Summary: This study examines the active tectonics along the Bamo anticline through quantitative analyses of geomorphic indices. The results indicate that the region exhibits high to moderate tectonic activity, with 38% and 56% of the area classified as high and moderate activity, respectively, and 6% classified as low activity.
Article
Geosciences, Multidisciplinary
Seyedabolfazl Hosseini, Marc Andre Conrad, Pascal Kindler
Summary: A regional sequence-stratigraphic framework is proposed for the Berriasian-Barremian shallow platform succession in the Zagros Fold-Thrust Belt, supported by biostratigraphic results and calibrated by Sr-isotope data. Four large-scale sequences and sixteen small-scale sequences were identified and described, representing different depositional environments and platform growth architectures in different stages of the Berriasian-Barremian succession.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Majid Alipour
Summary: The Zagros fold and thrust belt (ZFTB) in Iran serves as a natural laboratory for studying the kinematics of Arabia-Eurasia convergence/collision and has economic significance. This orogenic belt exhibits variations in stratigraphic makeup and structural style, as well as occurences of ophiolites along the Zagros suture line. The tectonostratigraphic attributes of the ZFTB are shaped by the irregular pre-collisional geometry at the northeastern edge of the Arabian Plate, as proposed in this paper.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geology
Alireza Zarasvandi, Zahra Fereydouni, Bahram Alizadeh, Nurul Absar, Anil Dutt Shukla, Mohd Qaim Raza, M. Ashok, Marcos Zentilli
Summary: The Zagros phosphogenic horizon, located in Iran, is an important and high-grade phosphatic resource formed along the Tethyan Realm over 50 million years. The paleoenvironmental conditions during its formation varied from oxic-suboxic to anoxic states in a shallow marine setting. The petrographic and geochemical studies provide insights into the evolution and depositional paleoenvironment of these phosphorites.
ORE GEOLOGY REVIEWS
(2021)
Article
Geosciences, Multidisciplinary
Ying-Hui Yang, Xiaoyun Li, Jyr-Ching Hu, Jiawei Song, Jingjin Zhao, Ali Yassaghi, Erwan Pathier, Qiang Xu, Qiang Chen
Summary: A doublet earthquake event occurred on 1 July 2022 in the Zagros fold-and-thrust belt in southeast Iran, involving two main shocks with a magnitude larger than M-w 6.0. The InSAR deformation field revealed significant surface uplift caused by fault-related folding in the seismic zone. The preferred faulting model suggests that higher dip angle and overlying gentle dipping faults were responsible for the two main shocks, with the first main shock triggering the second one.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
D. Brown, J. Alvarez-Marron, G. Camanni, C. Biete, H. Kuo-Chen, Y. -M. Wu
Summary: This paper presents a structural model for the south-central Taiwan fold-and-thrust belt, which provides a consistent explanation for seismicity, GPS, and topography data. The model suggests that the fold-and-thrust belt is a west-verging thrust system with breaching faults inherited from the continental margin. It also involves metamorphic basement rocks and has systematic changes in GPS displacement vectors and strain rates across transverse zones.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Mahdi Najafi, Elisabet Beamud, Jonas Ruh, Frederic Mouthereau, Alireza Tahmasbi, Gilen Bernaola, Ali Yassaghi, Hossein Motamedi, Shahram Sherkati, Mohammad Ghasem Hassan Goodarzi, Jaume Verges
Summary: The integration of biostratigraphy, strontium isotope stratigraphy, and magnetostratigraphy provided precise dating of sedimentary evolution in the Fars arc, revealing the migration of sedimentary belts and propagation of folding. High rates of folding propagation suggest an efficient detachment level at the base of the deformed Arabian sedimentary cover, influencing the deformation propagation within the cover sequence and understanding the in-sequence deformation of the Zagros Simply Folded Belt.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2021)
Article
Geosciences, Multidisciplinary
Raana Razavi Pash, Zeinab Davoodi, Soumyajit Mukherjee, Leila Hashemi Dehsarvi, Tahereh Ghasemi-Rozveh
Summary: Detection and delineation of basement faults are crucial in petroleum geology, as they can guide later deformation and associated structures in younger sediments. This research used aeromagnetic data interpretation and compared it with DEM to identify basement structures in the NW part of Fars province in the Zagros belt. Major NW and NE trending deep-seated faults were found, influencing the structural style in the region.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Chuang Sun, Zhigang Li, Shimin Wu, Zhiyuan He, Shaotian Zhao, Panfei Wang
Summary: The study focuses on the WSFTB located outboard of the eastern Tibetan Plateau. Results from sandbox experiments show that the presence of a mid-level decollement can significantly affect regional structural configuration, including accelerating deformation propagation rate and altering deformation front position.
FRONTIERS IN EARTH SCIENCE
(2021)
Review
Geochemistry & Geophysics
Mohsen Rezaei, Alireza Zarasvandi, Ali Azhdari, Majid Heidari
Summary: This study conducted a regional-scale reconnaissance of 11 brine springs in the ZFTB, revealing their hypersaline nature and potential economic lithium recovery. Some of the springs already have lithium concentrations reaching economic extraction levels, and there is concern about the adverse environmental effects on water resources ecosystem.
APPLIED GEOCHEMISTRY
(2021)
Article
Geosciences, Multidisciplinary
Victor Alania, Onise Enukidze, Alexander Razmadze, Tamar Beridze, Demur Merkviladze, Tamar Shikhashvili
Summary: This study presents a new structural model for the western Kura foreland fold-and-thrust belt, supported by field observations, well data, and seismic reflection data. The seismic interpretations match with analog models and further understanding of kinematic evolution and improvement of seismic interpretation are achieved through analysis of experimental results.
FRONTIERS IN EARTH SCIENCE
(2023)