Figure F156 (continued). E. Crystal-plastic deformation in gabbro exhibiting a very sharp contact with the undeformed zone (Sample 305-U1309D-143R-2, 53–61 cm); shear zone = 2 cm at neck. Yellow box = location of F and G. F. Sharp boundary to the shear zone (Sample 305-U1309D-143R-2, 58–61 cm) (plane-polarized light, FOV = 2 cm). G. Same as F; cross-polarized light, FOV = 2 cm. Yellow box = location of H. H. Difference in microstructure between the area affected by the shear zone and the unstrained zone (cross-polarized light; FOV = 11 mm).
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