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

Journal Article · Fri Nov 14 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4898947· OSTI ID:22390417

Kulkov, A. S., E-mail: [e-mail]; Kulkov, S. N., E-mail: [e-mail] ^[1]; Chernishov, A. I., E-mail: [e-mail]; Tishin, P. A., E-mail: [e-mail] ^[2]; Lychagin, D. V., E-mail: [e-mail] ^[3]

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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)

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.

• OSTI ID: 22390417
• Journal Information: AIP Conference Proceedings, Vol. 1623, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BACKSCATTERING
CREEP
CRYSTAL LATTICES
CRYSTALLOGRAPHY
DEFORMATION
DIFFUSION
DISLOCATIONS
ELECTRON DIFFRACTION
GRAIN ORIENTATION
OLIVINE
POLYCRYSTALS
ROCKS
TEMPERATURE DEPENDENCE