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Figure 8
XRT render of sample #17 (Table 2[link]) with increasing twisting angle. Z is the torsion axis. (a) Representative example of absorption-contrast XRT between different phases (from brightest to darkest: garnet, secondary mineral; pyroxene, matrix mineral; quartz, accessory mineral). XRT renders gradually decrease in height with twisting angle due to anvil gap reduction. Arrows (126° twisting) show rings and shading artefacts. (b) Theoretical transfer of the strain in a solid cylinder and in the representative volume. γ is strain and r is radius. Red arrows show the direction of torsion. Sequential black arrows show the strain gradient along the radius.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 5| September 2023| Pages 962-977
https://doi.org/10.1107/S1600577523005374
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