Figure F11. Photomicrographs showing images of an olivine grain (blue) intergrown with a plagioclase grain. The plagioclase crystal is a consistent shade of gray and spans the entire length of the olivine crystal in the field of view (FOV). The olivine is also cut by other large plagioclase crystals. Note the lack of accessory minerals such as quartz, oxides, and apatite (Sample 209-1272A-3R-1, 96–98 cm). A. Cross-polarized light: blue filter; FOV = 2.75 mm; image 1272A_006. B. Plane-polarized light: blue filter; FOV = 2.75 mm; image 1272A

Figure F11. Photomicrographs showing images of an olivine grain (blue) intergrown with a plagioclase grain. The plagioclase crystal is a consistent shade of gray and spans the entire length of the olivine crystal in the field of view (FOV). The olivine is also cut by other large plagioclase crystals. Note the lack of accessory minerals such as quartz, oxides, and apatite (Sample 209-1272A-3R-1, 96–98 cm). A. Cross-polarized light: blue filter; FOV = 2.75 mm; image 1272A_006. B. Plane-polarized light: blue filter; FOV = 2.75 mm; image 1272A _007).