Figure F44. An aphanitic pillow rim at the edge of the sparsely vesicular zone in Unit 1 (Sample 192-1183A-54R-3 [Piece 5, 125-127 cm]). Euhedral olivine phenocrysts and a glomerocryst of olivine and plagioclase are present (arrow). Olivine is pseudomorphed by green clay, which also partially fills the irregular vesicles in this thin section. The groundmass consists of quench-textured plagioclase and glass (field of view = 2.8 mm; plane-polarized light; photomicrograph ID# 1183A

Figure F44. An aphanitic pillow rim at the edge of the sparsely vesicular zone in Unit 1 (Sample 192-1183A-54R-3 [Piece 5, 125-127 cm]). Euhedral olivine phenocrysts and a glomerocryst of olivine and plagioclase are present (arrow). Olivine is pseudomorphed by green clay, which also partially fills the irregular vesicles in this thin section. The groundmass consists of quench-textured plagioclase and glass (field of view = 2.8 mm; plane-polarized light; photomicrograph ID# 1183A_003).