Plate P1. Photomicrographs illustrating sands and sandstones of the Woodlark rift. 4. A poorly sorted lithic sandstone containing angular to subrounded microlitic, lathwork, and felsitic volcanic lithic fragments, grains of plagioclase, biotite, clinopyroxene, hornblende, and foraminifer tests (Sample 180-1108B-23R-3, 34-36 cm [369.55 mbsf]) (cross-polarized light).