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Earth, Planets and Space
Figure 9 | Earth, Planets and Space

Figure 9

From: Subgrain boundary analyses in deformed orthopyroxene by TEM/STEM with EBSD-FIB sample preparation technique

Figure 9

Relationship between SGBs and exsolutions. All Opx surfaces have been polished, then chemically etched to reveal Ca-rich Cpx exsolution lamellae and SGBs. SGBs are also apparent through the rotation of lamellae. (a) Cpx grains formed along a SGB, merging with exsolution lamellae. (b) On both sides of the SGB (arrowed), exsolution lamellae are absent. (c) Recrystallization of small, exsolution-free Opx grains (arrowed) along a SGB. All pictures were taken by an optical microscope in reflected light.

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