Stacking faults in lizardites 1T from electron diffraction data and modeling of diffraction effects
- Russian Academy of Sciences, Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (Russian Federation)
Stacking faults in lizardites 1T (polytype group A) have been studied by analyzing the oblique-texture electron diffraction patterns in combination with a numerical simulation of diffraction patterns. The simulation of diffraction profiles was performed for finite (10-layer) sequences using the statistical Markov model in the quasi-homogeneous approximation. Diffraction criteria are revealed, which indicate the presence of defects in lizardite 1T; these defects are related to the change in the layer orientation by 180 Degree-Sign and displacements of adjacent layers by a/3. It is shown that in the case of the statistical distribution of defects, along with pairs of adjacent layers with layer packing features typical of polytype groups D and B, there are also sequences of layers 1T(A), correspondingly rotated by 180 Degree-Sign or displaced by a/3 and 2a/3 with respect to the layers in the 1T matrix. The data obtained give deeper insight into the variations in layer packing in lizardites 1T.
- OSTI ID:
- 22054342
- Journal Information:
- Crystallography Reports, Vol. 56, Issue 1; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
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