Figure F32. Close-up photograph of typical texture of thin sheet flows. Glassy margin of thin sheet flow in basement Unit 1256D-2 (interval 206-1256D-13R-3, 25-33 cm). Note the horizontal planar shape to glassy margin and parallel vesicle horizon just below the margin.

Figure F32. Close-up photograph of typical texture of thin sheet flows. Glassy margin of thin sheet flow in basement Unit 1256D-2 (interval 206-1256D-13R-3, 25-33 cm). Note the horizontal planar shape to glassy margin and parallel vesicle horizon just below the margin.