Plate P5. Photomicrographs illustrating volcanic lithic fragments present within the sands and sandstones of Woodlark rift. 3. Plagioclase, hornblende, and biotite phyric brown vitric volcanic lithic fragment surrounded by lathwork, felsitic, and vitric volcanic lithic fragments, and detrital feldspar grains set in a calcite-cemented coarse-grained lithic sandstone (Sample 180-1108-3R-CC, 0-4 cm [14.5 mbsf]) (plane-polarized light).