Article
Geography, Physical
Gabriel Cofrade, Irene Cantarero, Oscar Gratacos, Oriol Ferrer, Pedro Ramirez-Perez, Anna Trave, Eduard Roca
Summary: This study aims to investigate how the origin, advance, and emplacement of an allochthonous salt body in continental settings influence local sedimentation. The Les Avellanes diapir in Spain is used as a field analog, where a sub-basin with early Oligocene sedimentary sequences records the lateral extrusion of the diapir and its emplacement as an allochthonous salt sheet. Through the analysis of sedimentary, petrologic, and stratigraphic data, the study provides insights into the evolution of the diapir and the nature of the diapir contact. The results contribute to the understanding of the relative lateral movement of salt sheets in continental settings. Rating: 8/10.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Geochemistry & Geophysics
Dan M. Tamas, Alexandra Tamas, Jessica Barabasch, Mark G. Rowan, Zsolt Schleder, Csaba Krezsek, Janos L. Urai
Summary: This study focuses on an intrasalt, sub-horizontal shear zone in the Romanian Eastern Carpathians, shedding light on the formation and evolution of salt structures and providing a detailed description of the unique geological features of salt-cored anticlines.
Article
Geochemistry & Geophysics
Fengnian Chang, Shaochun Dong, Hongwei Yin, Zhenyun Wu, Wei Wang
Summary: Quantifying the kinematics of subaerial salt and understanding its correlation with geomorphic, tectonic, and climatic factors is crucial in exploring the interactions between Earth's spheres. This study integrated various datasets to explore the potential correlation between subaerial salt motions and geomorphic, tectonic, and climatic factors in the Kuqa fold-thrust belt (KFTB), NW China. The research revealed a maximum of 25 mm/yr vertical and 40 mm/yr horizontal surface salt deformation in the KFTB from 2014 to 2020, indicating a gravity spreading dominant system influenced by topography and weather variables.
Article
Geosciences, Multidisciplinary
Blessing Adeoti, A. Alexander G. Webb
Summary: The Kuqa fold-thrust belt in China is known for its diverse surface salt structures. By studying the geomorphological features of lateral ridge propagation along the belt, researchers have found evidence supporting the formation of the belt through a combination of detachment folding and source-fed thrust faults.
JOURNAL OF STRUCTURAL GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Oskar Vidal-Royo, Mark G. Rowan, Oriol Ferrer, Mark P. Fischer, J. Carl Fiduk, David P. Canova, Thomas E. Hearon, Katherine A. Giles
Summary: The study focuses on salt diapirs and connecting faults in the Warraweena area of South Australia, providing insights into the three-dimensional geometry and evolution of these structures through geological mapping and conceptual structural models.
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
Yi Long, Hanlin Chen, Xiaogan Cheng, Hongdan Deng, Xiubin Lin
Summary: Paleo-uplift amplitude significantly influences salt-related deformations in salt-bearing fold-and thrust belts (FTBs), leading to changes in strain localization and salt distribution. Increasing paleo-uplift amplitude results in stronger effects on deformation propagation and can cause out-of-sequence deformation towards the hinterland.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
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
Gabriel Cofrade, Prokop Zavada, Ondrej Kryza, Irene Cantarero, Oscar Gratacos, Oriol Ferrer, Sadegh Adineh, Pedro Ramirez-Perez, Eduard Roca, Anna Trave
Summary: This study investigates the impact of stringers on the deformation style of an extrusive salt sheet by analyzing carbonate stringers preserved in the caprock matrix and using scaled analogue models. The results reveal that the array of stringers can be classified into three structural domains, and the transported stringers compartmentalize the deformation in the caprock matrix. The findings provide insights into the kinematic evolution of the Les Avellanes Diapir.
JOURNAL OF STRUCTURAL GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Yu Zhen, Xiongfei Xu, Dengfa He, Xinning Li, Di Li
Summary: Studying the structural evolution of the piedmont fold and thrust belt is crucial for understanding the mechanism of intracontinental collision orogeny. In this study, we identified a large-scale thrust nappe in the southwestern margin of the Santanghu Basin, providing evidence for studying the Mesozoic-Cenozoic tectonic evolution of Moqinwula Mountain. Through electromagnetic and high-resolution seismic profiles, we determined the composition of the nappe and the tectonic activities it underwent. The results suggest multiple thrusting events and significant shortening during the Late Jurassic and Late Cretaceous. This study contributes to understanding the transition mechanism of mountain formation in the Eastern Tianshan region.
FRONTIERS IN EARTH SCIENCE
(2023)
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
Geosciences, Multidisciplinary
Wanhui He, Wei Wang, Huiwen Xie, Hongwei Yin, Dong Jia, Zhenping Xu, Haoyu Luo, Rui Yuan
Summary: This study systematically describes an applicable method to quantify the effect of salt flow on cross-section restoration in salt-bearing fold-and-thrust belts. The results show that the sub-salt thrust system propagates forward in sequence in one segment and out of sequence in another segment, forming an oblique transfer zone. Understanding salt flow is crucial for cross-section restoration, and relationships between supra-salt deformations and sub-salt thrust can be built by clarifying the contribution of salt flow.
JOURNAL OF STRUCTURAL GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
P. Zavada, J. Bruthans, S. Adineh, M. Warsitzka, M. Zare
Summary: The Karmostaj (Gach) and Siah Taq salt diapirs in the Zagros Mountains of Iran are world-class examples of salt extrusions, commonly referred to as salt glaciers. However, a field survey revealed that their glacier-like appearance is actually formed by thick, variegated, and deformed caprock, with only local salt content. Deformation within the caprock is primarily accommodated by shearing along gypsum-rich zones and pressure solution-precipitation creep of the lath-shaped gypsum grains.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
M. Ford, J. Verges
Summary: The study reinterprets the narrow eastern North Pyrenean Zone in France as an inverted salt-rich transtensional rift system, with evidence of extension, salt tectonics, and basin formation. The research suggests a transtensional regime along the Iberia-Europe plate margin during the late Early and early Late Cretaceous, characterized by deep faults, discontinuous crustal domains, and 'hot' pull-apart basins.
JOURNAL OF THE GEOLOGICAL SOCIETY
(2021)
Article
Geochemistry & Geophysics
Chao Zhou, Jianxun Zhou
Summary: The article discusses the origin of thrust wedges and the case study of the Eastern Sichuan-Xuefeng fold-thrust belt. The experimental results reveal, for the first time, the variation of structural vergence of thrust wedges under different shear stress ratios.