Figure F31. A. Several pieces of hyaloclastite (20-23, 27-29, and 29-33 cm) and one small pillow piece (23-27 cm) exhibiting radiating vesicles and glassy margin (interval 195-1201D-46R-4, 20-33 cm). (Continued on next page.)

Figure F31. A. Several pieces of hyaloclastite (20-23, 27-29, and 29-33 cm) and one small pillow piece (23-27 cm) exhibiting radiating vesicles and glassy margin (interval 195-1201D-46R-4, 20-33 cm). B. Photomicrograph of biogenic clast found in the interpillow sedimentary material (Sample 195-1201D-46R-4, 24-27 cm) (cross-polarized light; conoscopic illumination).