Figure F137. Photomicrograph showing folded thin bands of flattened and coalesced vesicles within a glassy matrix (Sample 206-1256D-51R-2 [Piece 4, 14-16 cm]; field of view = 0.625 mm; plane polarized light; thin section 151).

Figure F137. Photomicrograph showing folded thin bands of flattened and coalesced vesicles within a glassy matrix (Sample 206-1256D-51R-2 [Piece 4, 14-16 cm]; field of view = 0.625 mm; plane polarized light; thin section 151).