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Fig. 10 | Progress in Earth and Planetary Science

Fig. 10

From: Imaging in 3D under pressure: a decade of high-pressure X-ray microtomography development at GSECARS

Fig. 10

High-pressure and high-temperature microstructural evolution of olivine and Fe-Ni-S composite sample under various shearing strains. In the sample images (San Carlos olivine + 10 vol.% Fe-Ni-S), the olivine matrix has been digitally removed, showing alloy blobs, the shape and spatial distribution of which change with shear strain. Images are presented as upper- and lower-panel pairs, with the upper panel showing the entire sample and the lower panel showing particular blob configurations. a Sample under ambient conditions. Blobs are separate and equant. b Sample at 6 GPa and 800 K, with no shear strain applied by anvil twisting. Blobs become more elliptical with some interconnection due to axial shortening. c Sample at 6 GPa and 800 K, upper and lower sample surface twisted by 30° (as indicated by tracking individual blobs). Blobs are more flattened and elongated along the shear direction, and more blob connections are observed. d Sample at 6 GPa and 800 K, upper and lower sample surface twisted by 65°. Eventually, blobs become film-like and can no longer be separated. Modified after Wang et al. (2011)

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