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Table T1. Electron backscatter diffraction data, Hole 1256D.

Core, section,
interval (cm) 		Depth
(mbsf) 		Unit* Rock type* EBSD
measurement
step size (µm) 		Plagioclase
Grid data Grain data Average
grain size
(µm) 		SPO†
ODF
J-index 		M-index BA-index ODF
J-index 		M-index BA-index
335-U1256D-
214R-2, 64–66 1412.99 85 Opx and olivine-bearing oxide gabbro 50 1.5 0.002 0.74 1.3 0.002 0.51 280 1.171
215R-2, 77–79 1417.90 86A Disseminated oxide gabbro 20 1.7 0.002 0.52 1.7 0.004 0.75 179 —
220R-1, 14–17 1435.14 88B Oxide gabbro 40 1.9 0.004 0.46 1.5 0.002 0.49 247 1.164
222R-1, 142–144 1446.02 89A Opx-bearing olivine gabbro 60 3.1 0.010 0.49 1.4 0.002 0.50 367 1.163
223R-2, 7–9 1450.85 89A Opx-bearing olivine gabbro 30 1.7 0.002 0.58 1.3 0.001 0.56 185 1.183
223R-2, 120–122 1451.98 89C Opx and olivine-bearing gabbro 28 1.3 0.001 0.56 1.1 0.002 0.54 180 1.074
231R-1, 92–94 1488.82 92A Disseminated oxide gabbronorite 60 1.5 0.004 0.67 1.3 0.003 0.45 314 1.156
231R-2, 30–32 1489.49 92A Disseminated oxide gabbronorite 30 1.7 0.004 0.73 1.4 0.003 0.73 189 —
232R-2, 38–40 1494.36 93A Disseminated oxide gabbronorite 21 1.4 0.001 0.31 1.2 0.002 0.70 198 1.220

* = unit numbers and rock types are taken from the redescription of Expedition 312 cores by the Expedition 335 Scientific Party (see the Expedition 335 summary chapter [Expedition 335 Scientists, 2012]). † = plagioclase shape-preferred orientation (SPO) from Trela et al. (2015). EBSD = electron backscattered diffraction, ODF = orientation distribution function. Opx = orthopyroxene. Italicized values = abnormally high J-index values. — = no data.

Core, section,
interval (cm) 		Clinopyroxene Average
grain size
(µm)
Grid data Grain data
ODF
J-index 		M-index BC-index ODF
J-index 		M-index BC-index
335-U1256D-
215R-2, 77–79 8.3 0.044 0.53 3.5 0.010 0.45 129
220R-1, 14–17 2.5 0.008 0.51 1.7 0.003 0.29 285
222R-1, 142–144 4.3 0.022 0.36 2.5 0.010 0.48 473
223R-2, 7–9 1.9 0.006 0.27 1.3 0.002 0.47 207
223R-2, 120–122 1.2 0.001 0.49 1.1 0.001 0.30 178
231R-1, 92–94 1.4 0.003 0.38 1.3 0.001 0.59 304
231R-2, 30–32 1.8 0.004 0.43 1.4 0.002 0.54 187
232R-2, 38–40 1.3 0.002 0.52 1.2 0.002 0.54 166

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