Results 31 to 40 of about 35,897 (307)

Tracking Deep Sediment Underplating in a Fossil Subduction Margin: Implications for Interface Rheology and Mass and Volatile Recycling

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The architecture and mechanical properties of the subduction interface impact large‐scale subduction processes, including mass and volatile recycling, upper‐plate orogenesis, and seismic behavior.
C. M. Tewksbury‐Christle   +2 more
doaj   +1 more source

Structural Anatomy of the Intraterrane Shear Zones in the Archean Bundelkhand Craton, North-Central India and Its Possible Linkage to Supercontinent Assembly: Insights from Field- and AMS-Based Kinematic Analysis

open access: yesLithosphere, 2022
Delineation and characterization of the intraterrane shear zones (ITSZs) are very significant in establishing suitable models to understand the tectonic evolution of continental blocks and often provide crucial information on supercontinent assembly. The
Sayan Maity, Sayandeep Banerjee
doaj   +1 more source

The influence of normal stress and sliding velocity on the frictional behaviour of calcite at room temperature. Insights from laboratory experiments and microstructural observations [PDF]

open access: yes, 2016
The presence of calcite in and near faults, as the dominant material, cement, or vein fill, indicates that the mechanical behaviour of carbonate-dominated material likely plays an important role in shallow- and mid-crustal faulting. To better understand
Carpenter, B. M   +3 more
core   +2 more sources

Experimental characterization and numerical modeling of micromechanical damage under different stress states [PDF]

open access: yes, 2013
The use of HSLA steels for the manufacture of automotive components is interesting from an engineering point of view. This family of steels, while possessing high strength, also has good formability and can be used in forming manufacturing processes.
ACHOURI, Mohamed   +3 more
core   +5 more sources

Microstructures and deformation mechanisms in Opalinus Clay: insights from scaly clay from the Main Fault in the Mont Terri Rock Laboratory (CH) [PDF]

open access: yesSolid Earth, 2017
The Main Fault in the shaly facies of Opalinus Clay is a small reverse fault formed in slightly overconsolidated claystone at around 1 km depth. The fault zone is up to 6 m wide, with micron-thick shear zones, calcite and celestite veins, scaly clay and ...
B. Laurich, J. L. Urai, C. Nussbaum
doaj   +1 more source

Post-depositional tectonic modifications of VMS deposits in Iberia and its economic significance [PDF]

open access: yes, 2011
The original stratigraphic relationships and structure of VMS deposits are commonly obscured by deformation. This can also affect their economic significance, as shown by several Iberian Pyrite Belt (IPB, SW Iberia) examples.
Castroviejo Bolibar, Ricardo   +2 more
core   +2 more sources

Stress buildup in the Himalaya [PDF]

open access: yes, 2004
The seismic cycle on a major fault involves long periods of elastic strain and stress accumulation, driven by aseismic ductile deformation at depth, ultimately released by sudden fault slip events. Coseismic slip distributions are generally heterogeneous
Avouac, J. P.   +3 more
core   +1 more source

Geological-structural mapping and geocronology of shear zones: A methodological proposal

open access: yesBoletín Geológico, 2021
The deformation registered in rocks in the field can be characterized based on the structures preserved in outcrops, which can related be to wide discontinuity zones named faults and shear zones.
Anny Julieth Forero Ortega   +5 more
doaj   +1 more source

Failure mode transition in Opalinus Clay: a hydro-mechanical and microstructural perspective [PDF]

open access: yesSolid Earth, 2022
The way rocks deform under changing stress conditions can be described by different deformation modes, which is fundamental for understanding their rheology.
L. Winhausen   +5 more
doaj   +1 more source

Distribution, characteristics, ages, and tectonic environments of ductile shear zones in the Beishan orogenic belt

open access: yesDizhi lixue xuebao
Objective  The Beishan occupies a pivotal position between the eastern and western segments of the Central Asian Orogenic Belt (CAOB). Although numerous ductile shear zones have been identified in this area, they have received limited attention, leading ...
ZHANG Jin   +7 more
doaj   +1 more source

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