Figure F12. Photomicrograph showing unaltered olivine and plagioclase laths in glassy lobe margin (same view as Fig. F11, ) (Sample 197-1204B-3R-2, 97-100 cm) (cross-polarized light; field of view = 2.5 mm; photomicrograph 1204B-156).

Figure F12. Photomicrograph showing unaltered olivine and plagioclase laths in glassy lobe margin (same view as Fig. F11) (Sample 197-1204B-3R-2, 97-100 cm) (cross-polarized light; field of view = 2.5 mm; photomicrograph 1204B-156).