Figure F15. Photomicrograph in plane-polarized light of Sample 187-1157B-3R-1, 97-101 cm (see "Site 1157 Thin Sections"), showing a miarolitic cavity (dashed outline) with enlarged Fe-Ti oxides and elongate clinopyroxene (Cpx = clinopyroxene, long pale brown minerals) compared to more typical quench groundmass textures visible in the adjacent areas.