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Figure 11
(Left and middle) Representative sections of XCT reconstructions over cycles 1, 2 and 3 for BaCarb1 and their corresponding segmentation, showing the progressive infill of the polycrystalline olivine (in grey) by the carbonate melt (in white). The asterisk (*) corresponds to an overilluminated part of the tomograph. The white solid triangle corresponds to the top of the anvil. The vertical position of the BaCarb1 cylindrical ROI is represented on both XCT and SEM images, its top extremity exceeding these images by dozens of micrometres. (Right) An SEM image of the same section on the quench, showing complete wetting of the porosity with submicrometre carbonate films surrounding olivine grains. Given the spatial resolution of XCT (4–5 µm) only the large melt blobs are identified, but nevertheless they can be tracked in situ with a time resolution of a few seconds for dynamic studies.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 5| September 2021| Pages 1598-1609
https://doi.org/10.1107/S1600577521007049
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