Articles | Volume 15, issue 10
https://doi.org/10.5194/se-15-1281-2024
https://doi.org/10.5194/se-15-1281-2024
Research article
 | 
29 Oct 2024
Research article |  | 29 Oct 2024

Localized shear and distributed strain accumulation as competing shear accommodation mechanisms in crustal shear zones: constraining their dictating factors

Pramit Chatterjee, Arnab Roy, and Nibir Mandal

Related subject area

Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Structural geology and tectonics, paleoseismology, rock physics, experimental deformation | Discipline: Structural geology
Influence of water on crystallographic preferred orientation patterns in a naturally deformed quartzite
Jeffrey M. Rahl, Brendan Moehringer, Kenneth S. Befus, and John S. Singleton
Solid Earth, 15, 1233–1240, https://doi.org/10.5194/se-15-1233-2024,https://doi.org/10.5194/se-15-1233-2024, 2024
Short summary
Geomorphic expressions of active rifting reflect the role of structural inheritance: a new model for the evolution of the Shanxi Rift, northern China
Malte Froemchen, Ken J. W. McCaffrey, Mark B. Allen, Jeroen van Hunen, Thomas B. Phillips, and Yueren Xu
Solid Earth, 15, 1203–1231, https://doi.org/10.5194/se-15-1203-2024,https://doi.org/10.5194/se-15-1203-2024, 2024
Short summary
Driven magmatism and crustal thinning of coastal southern China in response to subduction
Jinbao Su, Wenbin Zhu, and Guangwei Li
Solid Earth, 15, 1133–1141, https://doi.org/10.5194/se-15-1133-2024,https://doi.org/10.5194/se-15-1133-2024, 2024
Short summary
Selection and characterization of the target fault for fluid-induced activation and earthquake rupture experiments
Peter Achtziger-Zupančič, Alberto Ceccato, Alba Simona Zappone, Giacomo Pozzi, Alexis Shakas, Florian Amann, Whitney Maria Behr, Daniel Escallon Botero, Domenico Giardini, Marian Hertrich, Mohammadreza Jalali, Xiaodong Ma, Men-Andrin Meier, Julian Osten, Stefan Wiemer, and Massimo Cocco
Solid Earth, 15, 1087–1112, https://doi.org/10.5194/se-15-1087-2024,https://doi.org/10.5194/se-15-1087-2024, 2024
Short summary
Reconciling post-orogenic faulting, paleostress evolution and structural inheritance in the seismogenic Northern Apennines (Italy): Insights from the Monti Martani Fault System
Riccardo Asti, Selina Bonini, Giulio Viola, and Gianluca Vignaroli
EGUsphere, https://doi.org/10.5194/egusphere-2024-2319,https://doi.org/10.5194/egusphere-2024-2319, 2024
Short summary

Cited articles

Adam, J., Urai, J., Wieneke, B., Oncken, O., Pfeiffer, K., Kukowski, N., Lohrmann, J., Hoth, S., Van Der Zee, W., and Schmatz, J.: Shear localisation and strain distribution during tectonic faulting – New insights from granular-flow experiments and high-resolution optical image correlation techniques, J. Struct. Geol., 27, 283–301, https://doi.org/10.1016/j.jsg.2004.08.008, 2005. a
Allison, K. L. and Dunham, E. M.: Influence of shear heating and thermomechanical coupling on earthquake sequences and the brittle-ductile transition, J. Geophys. Res.-Sol. Ea., 126, e2020JB021394, https://doi.org/10.1029/2020JB021394, 2021. a
Anand, L. and Spitzig, W.: Initiation of localized shear bands in plane strain, J. Mech. Phys. Solids, 28, 113–128, https://doi.org/10.1016/0022-5096(80)90017-4, 1980. a
Anand, L. and Spitzig, W.: Shear-band orientations in plane strain, Acta Metall. Water, 30, 553–561, https://doi.org/10.1016/0001-6160(82)90236-X, 1982. a
Anand, L. and Su, C.: A theory for amorphous viscoplastic materials undergoing finite deformations, with application to metallic glasses, J. Mech. Phys. Solids, 53, 1362–1396, https://doi.org/10.1016/j.jmps.2004.12.006, 2005. a
Download
Short summary
Understanding strain accumulation processes in shear zones is essential for explaining failure mechanisms at great crustal depths. This study explores the rheological and kinematic factors determining the varying modes of shear accommodation in natural shear zones. Numerical simulations suggest that an interplay of parameters – initial viscosity, bulk shear rate, and internal cohesion – governs the dominance of one accommodation mechanism over another.