Deep ductile shear localization facilitates near-orthogonal strike-slip faulting in a thin brittle lithosphere [PDF]
, 2020 Some active fault systems comprise near-orthogonal conjugate strike-slip faults, as highlighted by the 2019 Ridgecrest and the 2012 Indian Ocean earthquake sequences.
Ampuero, Jean-Paul +2 more
core +1 more source
What comes first: The fault or the ductile shear zone?
Earth and Planetary Science Letters, 2022 Crustal scale fault zones extend below the brittle-ductile transition as ductile shear zones. Here we address the question of which regime, brittle or ductile, initiates and controls the overall system of shear localization. Observations of crustal scale but low displacement conjugate strike-slip faults show that they are typically nearly orthogonal ...
Christopher H. Scholz, Eunseo Choi
openaire +2 more sources
Variation of Deformation Conditions of Zagros Suture Zone between Baneh and Shahrekord Areas, Iran [PDF]
Journal of Sciences, Islamic Republic of Iran, 2023 Suture zones within continental collision zones generally considered as deep-seated thick-skinned thrusts/shear zones rotted in lower crust. Main Zagros Revers Fault (MZRF) is the suture zone for continental collision between the Afro-Arabia and Eurassia
Fatemeh Ghahremani, Ali Yassaghi
doaj +1 more source
3D gravity modelling of the Aguablanca Stock, tectonic control and emplacement of a Variscan gabbronorite bearing a Ni–Cu–PGE ore, SW Iberia [PDF]
, 2008 The Aguablanca stock is a Variscan mafic pluton located in the Ossa-Morena zone, southern Iberian Massif, hosting an unusual Ni–Cu–PGE mineralization associated with magmatic breccia pipes which intruded its northern part.
Bachiller +26 more
core +1 more source
Experimental study of the brittle–ductile transition in hot cutting of SG iron specimens [PDF]
, 2013 http://www.sciencedirect.com/science/article/pii/S0924013612002579The present paper investigates the brittle-ductile transition (BDT) of the primary shear zone during cutting of spheroidal graphite (SG) iron in the austenitization temperature range ...
EL MANSORI, Mohamed +1 more
core +6 more sources
Rheological transitions in the middle crust: insights from Cordilleran metamorphic core complexes [PDF]
Solid Earth, 2017 High-strain mylonitic rocks in Cordilleran metamorphic core complexes reflect ductile deformation in the middle crust, but in many examples it is unclear how these mylonites relate to the brittle detachments that overlie them.
F. J. Cooper, J. P. Platt, W. M. Behr
doaj +1 more source
Opposing shear senses in a subdetachment mylonite zone: Implications for core complex mechanics [PDF]
, 2010 [1] Global studies of metamorphic core complexes and low‐angle detachment faults have highlighted a fundamental problem: Since detachments excise crustal section, the relationship between the mylonitic rocks in their footwalls and the brittle deformation
E. S. Platzman +8 more
core +4 more sources
Yankuang ceshi, 2018 BACKGROUND The Zhelande gold deposit is an important orogenic gold deposit in the Irtysh tectonic belt. This deposit is hosted in the ductile shear zone.
LIU Guo-ren +6 more
doaj +1 more source
A rate- and state-dependent ductile flow law of polycrystalline halite under large shear strain and implications for transition to brittle deformation [PDF]
, 2010 We have conducted double-shear biaxial deformation experiments in layers of NaCl within its fully-plastic (FP) regime up to large shear strains (γ < 50) with velocity steps.
Noda, Hiroyuki, Shimamoto, Toshihiko
core +1 more source
Zircon dissolution in a ductile shear zone, Monte Rosa granite gneiss, northern Italy [PDF]
, 2008 The sizes, distributions and shapes of zircon grains within variably deformed granite gneiss from the western Alps have been studied. Zircon shows numerous indicators of a metamorphic response in both the host gneiss and a 5 cm wide continuous ductile ...
Dal Piaz +14 more
core +1 more source