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Table T1. Summary of grain-size statistics calculated from EBSD data. (See table notes.)

Phase Mean
(µm)
Standard
deviation
(µm)
Median
(µm)
Center of shear zone:
Plagioclase 45.5 35.7 34.2
Enstatite 33.3 28.1 22.5
Diopside 43.9 40.7 34.4
Ilmenite 18.4 6.1 16.2
Edge of shear zone:
Plagioclase 26.7 24.2 20.3
Enstatite 24.8 19.1 19.7
Diopside 35.7 29.9 26.4
Ilmenite 15.5 2.9 14.8
Hornblende 21.5 8.0 19.4

Notes: Grains are defined as domains surrounded by boundaries with 10° or more misorientation. Grains <12 µm have been removed from the analysis, as most errors created during the data collection, noise reduction, and data manipulation phases show up as small grains. Center of shear zone data from Sample 304-U1309D-64R-2, 43 cm; edge of shear zone data from Sample 64R-2, 46 cm.

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