Figure F13. Close-up photograph of the gray-green, flow-laminated, silicified volcanic rock (Unit 18) with minor volcanic clasts (xenoliths?) located above the lower volcanic units of Hole 1188A and below the volcaniclastic pebble breccia. Plagioclase phenocrysts and microlites are oriented subparallel to the lamination, defining a remnant trachytic texture (interval 193-1188A-16R-2 [Piece 7, 39-52 cm]; 137.25 mbsf).