Figure F29. Color close-up photograph of Sample 183-1138A-81R-3 (Piece 1, 0-25 cm). The contact between Units 6 and 7 in Hole 1138A is marked by a change in color from gray to pink gray at 10-17 cm. The flow bottom to Unit 6 is moderately altered with irregularly shaped vesicles filled with clinoptilolite. The top of Unit 7 is brecciated and weakly oxidized with clinoptilolite and clay-cementing volcanic clasts that are variably altered to smectite.