Plate P3. Photomicrographs illustrating metamorphic and serpentinite lithic fragments and mineral grains present within the sands and sandstones of Woodlark rift. 5. A feldspar, quartz, biotite schist fragment with a remnant feldspar phenocryst. Surrounding detrital grains include amphibole, clinopyroxene, feldspar, and biotite. Microlitic, brown vitric, and colorless vitric volcanic lithic fragments are also present. (Sample 180-1108B-34R-2, 126-128 cm [314.60 mbsf]) (cross-polarized light).