Figure F193. A. Intensely serpentinized zone in olivine-rich troctolite (Sample 305-U1309D-100R-1, 26–28 cm) (cross-polarized light; field of view [FOV] = 2 cm). B. Serpentine foliation in very large olivine grain within leucocratic troctolite (Sample 305-U1309D-110R-1, 104–107 cm) (cross-polarized light; FOV = 2 cm). C. Moderately developed serpentine foliations in troctolite (Sample 305-U1309D-110R-3, 89–91 cm) (plane-polarized light; FOV = 2 cm). D. Serpentine foliation in troctolite (Sample 305-U1309D-110R-3, 90–91 cm) (plane-polarized light; FOV = 5.5 mm). Intense microfractures in plagioclase grains are subparallel to the serpentine foliation in adjacent olivine grains. E. Same as D; cross-polarized light.
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