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. 2023 Jun 23;13:10236. doi: 10.1038/s41598-023-37052-w

Figure 7.

Figure 7

Dissolution effects (red circles) and dark blue CL overgrowths, pore fills and healed fractures (yellow circles) in the mixed quartz-muscovite gouge (u195). Shear direction is in the image horizontal (probably top to the left). False-colour RGB SEM-CL overlays on BSE images (a, c) and corresponding BSE images (b, d). (e) False-colour RGB SEM-CL image overlay on BSE image showing a dark blue luminescent overgrowth indenting into a red luminescent grain, with a brighter red line in a half-circle below the indentation point (white circle). EBSD measurements (see inset in top right white circle, same legend as Figs. 2e and 4c) indicate this is a Dauphiné twin boundary. (f) BSE image of the same are as shown in e (bright white areas are remains of a previous platinum coating).