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Title: Crystallographic analysis of rock grain orientation at meso- and microscale levels

This paper studies the results of electron backscatter diffraction analysis of naturally deformed polycrystalline olivine. It also defines the dependence of lattice-preferred orientations of grains on their microstructural position and size. The authors detect the basic mechanisms, consequence and thermal dynamic modes of deformation. They also show that the development of a polycrystalline structure is determined by the following consecutive activation of sliding systems (010)[100] → (0kl)[100] → (100)[010] → (100)[001] → (110)[001], when dislocation sliding and diffusion creep change under the temperature decrease from 1000°C to 650°C.
Authors:
;  [1] ; ;  [2] ;  [3]
  1. National Research Tomsk State University, Tomsk, 634050, Russia and Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055 (Russian Federation)
  2. National Research Tomsk State University, Tomsk, 634050 (Russian Federation)
  3. National Research Tomsk State University, Tomsk, 634050, Russia and National Research Tomsk Polytechnic University, Tomsk, 634050 (Russian Federation)
Publication Date:
OSTI Identifier:
22390417
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1623; Journal Issue: 1; Conference: International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk (Russian Federation), 3-5 Sep 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BACKSCATTERING; CREEP; CRYSTAL LATTICES; CRYSTALLOGRAPHY; DEFORMATION; DIFFUSION; DISLOCATIONS; ELECTRON DIFFRACTION; GRAIN ORIENTATION; OLIVINE; POLYCRYSTALS; ROCKS; TEMPERATURE DEPENDENCE