Plate P3. Photomicrographs illustrating metamorphic and serpentinite lithic fragments and mineral grains present within the sands and sandstones of Woodlark rift. 4. A feldspar, quartz, biotite schist fragment surrounded by detrital grains of amphibole, clinopyroxene, feldspar, and biotite. Brown vitric and microlitic volcanic lithic fragments are also present (Sample 180-1115C-44R-2, 112-113 cm [698.70 mbsf]) (cross-polarized light).