Article
Engineering, Civil
Wei Liu, Chunjie Huang, Shaofeng Zhang, Zhaoyang Song
Summary: In this study, large-scale centrifuge tests were conducted to investigate the failure mechanisms of continuous steel pipes crossing strike-slip faults. The effects of burial depth, pipe-fault crossing angle, and pipe diameter on the pipe responses were analyzed. The results serve as benchmarks for theoretical and numerical models.
ENGINEERING STRUCTURES
(2023)
Article
Geosciences, Multidisciplinary
Qing Bian, Shang Deng, Huixi Lin, Jun Han
Summary: The connection between source rock and reservoir separated by salt strata is a global problem. This paper focuses on the No. 5 strike-slip fault passing through salt layers in the Tarim Basin. The seismic data reveals different structural styles in the salt layer, including transpression, transtension, and pure strikeslip. The impact of deep strike-slip salt tectonics on petroleum exploration is discussed using data from seven wells, showing that thicker salt layers result in poorer production.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Duan Wei, Zhiqian Gao, Tailiang Fan, Yongbin Niu, Ruixin Guo
Summary: This article investigates the effects of hydrothermal fluids related to multiple tectonic-thermal events on Ordovician carbonate rocks on the northern slope of the Tazhong Uplift in the Tarim Basin. It suggests that magma-sourced hydrothermal fluids and deep-seated ultramafic-derived hydrothermal fluids may have played a key role in the silicification and dolomitisation processes. The strike-slip fault systems appear to have served as conduits for the transport of these fluids, contributing to the formation of hydrothermal dolomites and cherts.
Article
Engineering, Civil
Wei Liu, Chunjie Huang, Shaofeng Zhang, Huiquan Miao
Summary: In this study, a centrifuge test was conducted to simulate a socket-type ductile iron pipe crossing a strike-slip fault. The main response of the pipe to the fault was found to be joint deformation, with the joint near the fault being the most vulnerable. The pipe strain was relatively small, with the peak strain occurring at a certain distance from the fault. A theoretical method was proposed to obtain the joint deformation, and a good agreement was observed between the test and theoretical results.
Article
Multidisciplinary Sciences
Luis Astudillo-Sotomayor, Julius Jara-Munoz, Daniel Melnick, Joaquin Cortes-Aranda, Andres Tassara, Manfred R. Strecker
Summary: In the Liquirie-Ofqui Fault System in Southern Chile, a single fault segment has exhibited a rapid slip rate over the past millennia, indicating strain localization on the fault at millennial time scales but not sustained over longer time scales.
SCIENTIFIC REPORTS
(2021)
Article
Geosciences, Multidisciplinary
Chao Liang, Jean-Paul Ampuero, Daniel Pino Munoz
Summary: Our research shows that faults nucleated in the brittle layer are unlikely to form at orthogonal angles, while shear bands in the deep ductile layer can induce near-orthogonal strike-slip faulting in the brittle lithosphere.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Mohammed S. Gumati
Summary: Understanding the development of syn-rift carbonate systems is complex, and their facies distributions can sometimes be difficult to predict due to key factors such as tectonics, eustasy, palaeogeography and climate. The study in SE Dahra Platform demonstrates that synsedimentary faults control reservoir architecture and predict heterogeneous distributions of carbonate facies, with local tectonic deformations and sea-level changes being primary controls on platform geometry and facies distributions.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geochemistry & Geophysics
Aurio Erdi, Christopher A-L Jackson
Summary: This study examines the structure and growth of salt-detached strike-slip faults using a 3D seismic reflection dataset from the Outer Kwanza Basin offshore Angola. The findings suggest that these faults formed to accommodate variations in differential seaward translation and salt diapirism. The growth of the fault arrays occurred through tip propagation of isolated fault segments, with some segments linking during specific time periods. The results also highlight the scatter in the D-L scaling of strike-slip faults, reflecting the propagation, interaction, and linkage of individual fault segments.
Article
Geosciences, Multidisciplinary
Yifan Gao, Ling Chen, Jianfeng Yang, Kun Wang
Summary: The Iranian plateau is undergoing compressive deformation in response to the Arabia-Eurasia collision. Interestingly, the deformation is concentrated in the northern plateau, challenging the common perception of progressive uplift from the collisional front to the hinterland. The weak northern plateau and the presence of N-S strike-slip faults within the central plateau play key roles in accommodating and accentuating the compressive deformation.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
J. C. Lozos
Summary: This study investigates the conditions under which rupture occurs on two component faults simultaneously in an orthogonal strike-slip fault system through dynamic rupture simulations. The results show that only when slip on the first fault reduces the normal stress on the second fault, or when a stopping phase occurs due to the termination of the first fault at the cross fault, multifault ruptures occur.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
A. E. Aksu, J. Hall, C. Yaltirak
Summary: The study of the structural evolution of the Larnaka Ridge using high-resolution multichannel seismic reflection profiles and multibeam mosaics of the seafloor revealed the presence of tension cracks and distinct seafloor lineations with unique orientations. The data also indicate a switch in the direction of the principal maximum compressive stress during the Quaternary period, likely associated with tectonic events in the eastern Mediterranean.
Article
Geosciences, Multidisciplinary
Molly Turko, Shankar Mitra
Summary: The Anadarko Basin in south-central Oklahoma contains oil and gas fields located on anticlinal structures formed during the Pennsylvanian Orogeny. The structural geometry and kinematic evolution of the Carter-Knox, Cruce, Chickasha, and Cement structures were interpreted using new seismic and well data, revealing tight faulted-detachment folds within Pennsylvanian units and deeper low amplitude fault-related folds within prePennsylvanian carbonate units. The evolution of these structures was influenced by mechanical stratigraphy, pre-existing basement structures, and a rotation in stresses during the final stage of their formation.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geochemistry & Geophysics
W. Cody Duckworth, Colin B. Amos, Elizabeth R. Schermer, John P. Loveless, Tammy M. Rittenour
Summary: The Upper-plate faulting in the Olympic Peninsula of Washington State is caused by relative motion of crustal blocks within the Cascadia forearc and earthquake cycle processes along the Cascadia subduction zone. A study reconstructing fault slip rates in the Sadie Creek fault (SCF) since approximately 14,000 years ago reveals a right-lateral strike-slip fault with a minimum dextral slip rate of 1.3-2.3 mm/yr, potentially modulated by stress transferred from subduction zone earthquakes.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geosciences, Multidisciplinary
Nemanja Krstekanic, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljic, Uros Stojadinovic
Summary: Large-scale strike-slip faults are associated with significant strain partitioning in releasing/restraining bends, displaying map-view curvatures ending in horse-tail geometries. The deformation transfer from thrusting and transpression to strike-slip and transtension is controlled by the geometry of the indenter in analogue modelling, while the rotation of the mobile plate controls the formation of triangular shaped transtensional basins. The flow of the ductile crust facilitates strike-slip splaying into transtension/extension behind the indenter, showing good correlation with real-world examples in Southeastern Europe.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Geochemistry & Geophysics
Marilia Barbosa Venancio, Fernando Cesar Alves da Silva
Summary: This study investigates the influence of rheology on the nucleation and evolution of strike-slip structures, and its impact on the structural architecture. Analog experiments were conducted using materials with different rheological behavior, and their properties were measured. The results showed that rheological properties control the deformation zone architecture, fracture and fault arrangement, and the localization of contractional and extensional domains.