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On the Symmetry of Orientation Distribution in Crystal Aggregates*

Published online by Cambridge University Press:  06 March 2019

David W. Baker
David W. Baker*
Affiliation:
University of California Los Angeles, California 90024
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Abstract

In a number of laboratories data from the X-ray pole-figure goniometer are now processed numerically to obtain a suite of complete and normalized pole- figures. From these pole-figures the preferred orientat ion of the grains in a monomineralic aggregate is determined using spherical harmonic analysis and represented as a frequency distribution of the Euler angles Ψ, θ, ø, termed the “orientation distribution function” (ODF),When the frequency density of grain orientations is plotted in a Cartesian coordinate system with Ψ, θ, ø, as axes,it must have a translation periodicity Of 2π or less along each of the axes, because the Euler Angles are angles of rotation.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 13: Eighteenth Annual Conference on Applications of X-ray Analysis, August 6-8, 1969 , 1969 , pp. 435 - 454
Copyright
Copyright © International Centre for Diffraction Data 1969

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Footnotes

*

Publication #755, Institute of Geophysics & Planetary Physics, University of California, Los Angeles, California 90024

References

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