Article
Geosciences, Multidisciplinary
Somaye Derikvand
Summary: This study presents new structural data on radiolarite and quartz mylonite rocks from the Kamandan area in western Iran, aiming to understand the strain partitioning along the Zagros transpression zone. The results indicate a dextral transpression with strain mainly distributed in the pure-shear and simple-shear components in the Kamandan shear zone.
JOURNAL OF STRUCTURAL GEOLOGY
(2022)
Article
Geochemistry & Geophysics
Bryan Cochelin, Baptiste Lemirre, Yoann Denele, Michel de Saint Blanquat
Summary: This study explores the partitioning of strain within hot orogenic belts in the context of plate reorganization, showcasing strike-slip shear zones and oroclinal bending in the late-Variscan times. It emphasizes the role of strain partitioning in finite strain patterns and reveals the effects of N-S shortening-dominated dextral transpression on vertical strain partitioning. The study also illustrates the influence of initial and boundary conditions on finite strain patterns, indicating large-scale lateral strain partitioning and reorganization within the Variscan belt.
Article
Environmental Sciences
Jan Oliver Eisermann, Paul Leon Goellner, Ulrich Riller
Summary: Transpression in the Southern Andes is mainly caused by two prominent fault sets, with variations in crustal strength playing a role in the deformation pattern. The deformation is accommodated by distributed deformation on oblique-slip reverse and thrust faults rather than localized displacements on margin-parallel faults.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)
Article
Geochemistry & Geophysics
T. S. Waldien, S. M. Roeske, R. Chatterjee, P. B. O'Sullivan, D. F. Stockli
Summary: In this study, the relationship between lateral slip gradients and splay thrust faults on the Alaskan earthquake fault is investigated. The research shows that there is a lateral slip gradient along the fault line, which is caused by fault bends and splay faults, resulting in surface uplift. The study of the Denali fault in Alaska reveals the long-term coevolution of slip gradients and splay thrust faults.
Article
Chemistry, Inorganic & Nuclear
David Stenzel, Ibrahim Issac, Kai Wang, Raheleh Azmi, Ruby Singh, Jaehoon Jeong, Saleem Najib, Subramshu S. Bhattacharya, Horst Hahn, Torsten Brezesinski, Simon Schweidler, Ben Breitung
Summary: This study reports for the first time the preparation and characterization of medium-entropy and high-entropy metal molybdates synthesized using an oxalate-based coprecipitation approach. The high-entropy molybdate crystallizes in a triclinic structure, different from the highly symmetrical structures typically associated with high-entropy materials. It is anticipated that applying the high-entropy concept to metal molybdates will modify the material's characteristics and introduce features of high-entropy systems such as tailorable composition and properties.
INORGANIC CHEMISTRY
(2021)
Article
Geochemistry & Geophysics
Barbara Bonechi, Cristina Perinelli, Mario Gaeta, Alessandro Fabbrizio, Maurizio Petrelli, Ladislav Strnad
Summary: Experimental results show that with increasing temperature, the partition coefficients of LILEs, REEs, HFSEs, and TEs decrease, while increasing the aluminium content tetrahedrally coordinated. The growth rate also affects the partition coefficients, with higher value obtained at higher growth rates. Additionally, the NBO/T ratio of melts influence the partition coefficients.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Geosciences, Multidisciplinary
Shahram Shafieibafti, Saeede Keshavarz, Saeed Zarei
Summary: Microstructural, vorticity and strain analyses are fundamental tools for studying deformation in shear zones. The Kahdan shear zone in the Zagros orogen of Iran exhibits spatial variations in vorticity and strain values.
JOURNAL OF STRUCTURAL GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Abbas Babaahmadi, Ali Reza Davoudian, Mohammad Mohajjel
Summary: Two generations of deformation, D1 and D2, were observed in the study area. D2 is characterized by a dextral transpressional zone, where strain is partitioned into distinct simple shear and pure shear domains.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Fu Xu, Yizhou Liu, Botao Dai, Yanhuai Ding, Celal Kursun, Meng Gao
Summary: In this study, an in-situ tensile platform coupled with a nanoindenter was used to investigate the continuous loading and creep behaviors of Cu50Zr50 metallic glass film under different pre-tensile strains. The volume, activation volume, and relaxation time spectrum of shear transformation zones were determined based on models. The results showed that all three factors increase with pre-tensile strain.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Geochemistry & Geophysics
T. K. Cawood, J. P. Platt
Summary: The study reconstructed the geometry and rheology of the Simplon Shear Zone, finding that the width increases with depth and during exhumation, weak mica layers formed, increasing strain localization.
Review
Geochemistry & Geophysics
Nathan R. Daczko, Sandra Piazolo
Summary: This study focuses on the characteristics of melt-migration pathways in high-strain zones cutting through sub-solidus rocks, emphasizing the importance of assessing these features on a case-by-case basis and providing a list of distinguishing features between solid-state and melt-present deformation.
Article
Geosciences, Multidisciplinary
Horng-Yue Chen, Ya-Ju Hsu, Ryoya Ikuta, Hsin Tung, Chi-Hsien Tang, Chin-Shang Ku, Hsuan-Han Su, Pei-Ru Jian, Masataka Ando, Toshiaki Tsujii
Summary: Using GNSS-acoustic measurements, the deformation pattern of the southern Ryukyu subduction zone has been studied. The data suggests that the subduction interface is capable of hosting M-w 7.5-8.4 earthquakes. The orientations of seafloor movement and P-axes deviate from the direction of plate convergence, indicating possible slip-partitioning.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Zhiteng Yu, Satish C. Singh, Emma P. M. Gregory, Marcia Maia, Zhikai Wang, Daniele Brunelli
Summary: Oceanic transform faults, key components of plate tectonics, have been found to host a 10 to 15 kilometer-thick band of microseismicity in depths of 10 to 34 kilometers along the Romanche mega transform fault in the equatorial Atlantic Ocean, associated with a high-temperature mantle. The presence of both shallow and deep earthquakes indicates that substantial deformation is accommodated in the semibrittle mylonitic mantle below the brittle lithosphere, with a rapid westward deepening of seismic activity suggesting strong lateral heterogeneity.
Article
Geosciences, Multidisciplinary
R. Dias, C. Coke, A. Ribeiro
Summary: The formation of the Ibero-Armorican Arc played an important role in the Variscan orogeny. The study revealed a heterogeneous sinistral transpressive regime and observed strain partitioning at different scales. The research also identified the coeval development of sedimentary rocks and fold structures related to the deformation.
JOURNAL OF STRUCTURAL GEOLOGY
(2022)
Article
Engineering, Industrial
Christoph Hartmann, Hannes Alois Weiss, Philipp Lechner, Wolfram Volk, Sebastian Neumayer, Jan Henrik Fitschen, Gabriele Steidl
Summary: Shear cutting is a significant process in chipless separation of metallic sheet materials, with focus on cutting surface characteristics, the influence of process parameters on quality, and the mechanism of material failure. Research shows that strain and strain rate primarily drive material behavior and interact in the shear affected zone.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Geochemistry & Geophysics
Nicola J. Litchfield, Pilar Villamor, Russ J. Van Dissen, Andrew Nicol, Philip M. Barnes, David J. A. Barrell, Jarg R. Pettinga, Robert M. Langridge, Timothy A. Little, Joshu J. Mountjoy, William F. Ries, Julie Rowland, Clark Fenton, Mark W. Stirling, Jesse Kearse, Kelvin R. Berryman, Ursula A. Cochran, Kate J. Clark, Mark Hemphill-Haley, Narges Khajavi, Katie E. Jones, Garth Archibald, Phaedra Upton, Cameron Asher, Adrian Benson, Simon C. Cox, Caleb Gasston, Dan Hale, Brendan Hall, Alexandra E. Hatem, David W. Heron, Jamie Howarth, Tim J. Kane, Geoffroy Lamarche, Steve Lawson, Biljana Lukovic, Samuel T. McColl, Christopher Madugo, John Manousakis, Duncan Noble, Kate Pedley, Katrina Sauer, Timothy Stahl, Delia T. Strong, Dougal B. Townsend, Virginia Toy, Jack Williams, Suzanne Woelz, Robert Zinke
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2018)
Editorial Material
Geochemistry & Geophysics
Virginia Toy, Gianreto Manatschal, Gideon Rosenbaum, Meghan Miller, Rodolfo Carosi
Article
Geochemistry & Geophysics
F. Abdulsamad, A. Revil, A. Ghorbani, V. Toy, M. Kirilova, A. Coperey, P. A. Duvillard, G. Menard, L. Ravanel
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2019)
Article
Geochemistry & Geophysics
Ludmila Adam, Marcel Frehner, Katrina Sauer, Virginia Toy, Simon Guerin-Marthe
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2020)
Article
Geosciences, Multidisciplinary
Leny Montheil, Virginia G. Toy, James M. Scott, Thomas M. Mitchell, David P. Dobson
FRONTIERS IN EARTH SCIENCE
(2020)
Article
Geosciences, Multidisciplinary
Jirapat Charoensawan, Ludmila Adam, Michael Ofman, Virginia Toy, Jonathan Simpson, Xin Zhong, Bernhard Schuck
Summary: This study investigates the effects of fracture orientations and shapes on P-wave anisotropy in rocks from the Alpine Fault shear zone. The numerical models show that the presence and orientation of fractures significantly influence the anisotropy, with differing results between 2D and 3D models.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geochemistry & Geophysics
Yilun Shao, David J. Prior, Virginia G. Toy, Marianne Negrini, James M. Scott
Summary: The study of microstructures and crystallographic preferred orientations (CPOs) of samples from the Dun Mountain ophiolite belt in New Zealand revealed that different olivine CPO types are related to the second phase content, indicating similar deformation conditions for the harzburgite and dunite pairs. Additionally, a shift in CPO types and strength from east to west in the study area suggests varying strain levels.
Editorial Material
Geosciences, Multidisciplinary
Virginia G. Toy, Nicolas C. Barth, Clare E. Bond, Sandra McLaren
JOURNAL OF STRUCTURAL GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Emma-Katherine Kluge, Virginia Toy, David Lockner
Summary: Magnetotelluric models indicate a localized zone of low electrical resistivity near the Alpine Fault Zone in New Zealand's South Island. Study of collected samples reveals that the electrical response in this region is controlled by pore fluid conductivity and is modified during metamorphism. Alpine mylonites exhibit relatively low resistivities at low porosities.
Article
Geochemistry & Geophysics
Martina Kirilova, Virginia Toy, Katrina Sauer, Francois Renard, Klaus Gessner, Richard Wirth, Xianghui Xiao, Risa Matsumura
Article
Geosciences, Multidisciplinary
Francesco Cappuccio, Virginia G. Toy, Steven Mills, Ludmila Adam
FRONTIERS IN EARTH SCIENCE
(2020)
Article
Geochemistry & Geophysics
Bernhard Schuck, Anja M. Schleicher, Christoph Janssen, Virginia G. Toy, Georg Dresen
Article
Geochemistry & Geophysics
Steven B. Kidder, Virginia G. Toy, David J. Prior, Timothy A. Little, Ashfaq Khan, Colin MacRae
Article
Geochemistry & Geophysics
Jack N. Williams, Virginia G. Toy, Cecile Massiot, David D. McNamara, Steven A. F. Smith, Steven Mills
Article
Geochemistry & Geophysics
Martina Kirilova, Virginia Toy, Jeremy S. Rooney, Carolina Giorgetti, Keith C. Gordon, Cristiano Collettini, Toru Takeshita