Figure F134. Photomicrographs showing oriented plagioclase laths. A. Oriented plagioclase laths (<0.1 mm) scattered in cryptocrystalline groundmass (Sample 206-1256C-8R-4 [Piece 5, 114-117 cm]; field of view = 10 mm; plane polarized light; thin section 25). B. Oriented plagioclase laths clustered in thin bands (Sample 206-1256C-11R-7 [Piece 1D, 96-99 cm]; field of view = 10 mm; plane polarized light; thin section 82).