Plate P4. Photomicrographs illustrating volcanic and plutonic lithic fragments within the sands and sandstones of Woodlark rift. 3. Lathwork volcanic lithic fragment with intersertal glass surrounded by detrital grains of feldspar, clinopyroxene, and colorless vitric volcanic lithic fragments (Sample 180-1108B-23R-3, 34-36 cm [210.15 mbsf]) (plane-polarized light).