Article
Geosciences, Multidisciplinary
Luca Smeraglia, Olivier Fabbri, Flavien Choulet
Summary: The study explored the subsurface structural styles of the Jura fold-and-thrust belt in eastern France by combining geological mapping, cross-section balancing, and 2D-kinematic forward modeling. The results revealed mixed structural styles in the region, with similarities to other fold-and-thrust belts characterized by thick salt-bearing basal detachments and multiple detachment horizons within the sedimentary sequence. The findings can serve as a benchmark for comparing structural styles in similar fold-and-thrust belts.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Geochemistry & Geophysics
Sara Figueroa, Jonathan R. Weiss, Fernando Hongn, Heiko Pingel, Leonardo Escalante, Leonardo Elias, R. German Aranda-Viana, Manfred R. Strecker
Summary: Research shows that there are significant differences in the tectonic activity characteristics and patterns between the thick-skinned fold-and-thrust belt on the eastern flank of the Andean Plateau in northwestern Argentina and the thin-skinned Subandean fold-and-thrust belt of northern Argentina and southern Bolivia. Estimating and comparing deformation rates and patterns across different timescales can provide a better understanding of the deformation processes in these mountain ranges.
Article
Geochemistry & Geophysics
Luca Smeraglia, Olivier Fabbri, Flavien Choulet, Madalina Jaggi, Stefano M. Bernasconi
Summary: By combining structural and microstructural data with stable and clumped isotopes, we characterized the paleofluid circulation in the Jura fold-and-thrust belt, eastern France. We found that syn-tectonic fluid circulation occurred along high permeability networks and was dominated by cold meteoric fluids. The study also suggested the presence of deep fluids from PermoTriassic rocks.
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
Jocelyn Balansa, Nicolas Espurt, Jean-Claude Hippolyte, Jean Philip, Severine Caritg
Summary: This study combines surface and subsurface data to build a balanced cross-section across two fold-thrust belts in southeastern France, revealing the characteristics and evolution of crustal shortening in the Provencal and Subalpine belts.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Jacques Dentzer, Manuel Pubellier, Nadine Ellouz-Zimmermann, Hildegonde Cenatus Amilcar, Helliot Amilcar, Roberte Momplaisir, Dominique Boisson
Summary: Haiti is located along the North Caribbean plate boundary, marked by two major left-lateral strike-slip faults. The collision in central Haiti resulted in a transition from thin-skinned to thick-skinned tectonics, with thick-skinned shortening mainly expressed during the Quaternary. This tectonic change has implications for understanding seismic activity in the region, including the 2010 Haiti earthquake.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Geochemistry & Geophysics
S. D. Parker, D. M. Pearson
Summary: The study reveals that the Idaho-Montana fold-thrust belt is a double-decker system, with upper thin-skinned and lower thick-skinned domains. Thick-skinned thrusting occurs more than 50 km from the foreland, coinciding with a regional basement high.
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
Geochemistry & Geophysics
Ahmed Abdelmaksoud, Mohammed Y. Ali, Meixia Geng, Hakim Saibi
Summary: In this study, the basement depths in the United Arab Emirates' fold-and-thrust belt (FTB) and its associated foreland basins were determined and the relationship between shallow sedimentary structures and deep basement features was investigated. The results showed that thrusts, backthrusts, and folds were observed in the northern portions of the study area, while the Tarabat backthrust dominated the southern region. The 3D gravity inversion results suggested an increase in basement depth and the thickness of late Oligocene-early Miocene successions towards the north, indicating a northward increase in the severity of thrusting and crustal loading along the Khusub thrust. The correlation between basement uplifts and shallower anticlinal features suggested that the basement structures were reactivated during the Late Cretaceous ophiolite obduction and the late Oligocene-early Miocene Zagros collision.
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
Geosciences, Multidisciplinary
Zhihua Song, Liangjie Tang, Chao Liu
Summary: The study indicates that the Tumuxiuke thrust at the northeastern boundary of the Bachu uplift in the Tarim Basin is controlled by pre-existing normal faults, leading to the formation of monoclines and fault-propagation folds. Through simulation and analysis, the study reveals the impact of thrust faults on folding deformation, influencing the rate of fold amplification and structural characteristics.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Adeline Marro, Louis Hauvette, Sandra Borderie, Jon Mosar
Summary: The study presents a new 2D kinematic forward model for the westernmost Internal Jura fold-and-thrust belt, which provides new insights into its kinematic evolution. The model suggests a pure thin-skinned style dominated by forward stepping deformation and minor back-stepping thrust sequences. Multiple thrust horizons and decollements are found within different layers in the Jura FTB.
SWISS JOURNAL OF GEOSCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Typhaine Caer, Bertrand Maillot, Pascale Leturmy, Pauline Souloumiac, Christophe Nussbaum
Summary: Field observations and seismic interpretations indicate that the front of the Jura fold-and-thrust belt is still undergoing compressive deformation, but whether the basement is deforming in a thick-skinned or thin-skinned manner remains uncertain. Using the Kinematic approach of the Limit Analysis theory, the authors propose a mechanical viewpoint and conducted simulations to determine the tectonic styles at the Jura front. The results show that the transitions between tectonic styles occur abruptly with changes in friction parameters, and the front of the thick-skinned deformation crosses laterally the Jura belt.
BSGF-EARTH SCIENCES BULLETIN
(2023)
Article
Geochemistry & Geophysics
Mjahid Zebari, Frank Preusser, Christoph Gruetzner, Payman Navabpour, Kamil Ustaszewski
Summary: The ongoing shortening between the Eurasian and Arabian plates is primarily accommodated within the Zagros Fold-Thrust Belt, but the distribution of active shortening within the belt, particularly in its NW part, is not well constrained. Depositional ages of uplifted river terraces and kinematic modeling were used to calculate long-term slip rates during the Late Pleistocene to Holocene, providing insights into faulting and folding rates in the area. Different slip rates were observed in various faults and folds, with distinct deformation patterns both in the NW and NE parts of the Zagros belt.
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)