Plate 1. 1. Sedimentary lithic fragments (S) and micritic carbonate lithic fragment (M) in Sample 149-901 A-1W-3, 28-31 cm. Scale bar = 0.2 mm. Plane-polarized light. 2. Subparallel-arranged biotite and muscovite flakes in Sample 149-900A-74R-2, 6-8 cm. Scale bar = 0.2 mm. Plane-polarized light. 3. Quartz-mica tectonite fragments (L) and grains of garnet (G) and glauconite (P) in Sample 149-899A-9R-1, 32-34 cm. Scale bar = 0.1 mm. Plane-polarized light. 4. Same view as in Figure 3 with crossed nicols. 5. Plutonic (quartz and potassium feldspar) rock fragment in Sample 149-898A-11H-3, 88—90 cm. Feldspar appears gray because it is etched and stained. Scale bar = 0.1 mm. Plane-polarized light. 6. Rounded polycrystalline quartz fragment in Sample 149-898A-11H-3, 88-90 cm. Scale bar = 0.1 mm. Crossed nicols.