Figure F12. Interval 192-1187A-7R-4, 98-130 cm, showing the calcite-cemented hyaloclastite that defines the boundary between Subunit 3B and Unit 4. Also visible is a complete vertical section through the lowermost pillow of Subunit 3B, including its upper and lower glassy margins (highlighted), and the aphanitic interior containing an Fe oxyhydroxide-stained spherulitic zone (parallel to the pillow margin).

Figure F12. Interval 192-1187A-7R-4, 98-130 cm, showing the calcite-cemented hyaloclastite that defines the boundary between Subunit 3B and Unit 4. Also visible is a complete vertical section through the lowermost pillow of Subunit 3B, including its upper and lower glassy margins (highlighted), and the aphanitic interior containing an Fe oxyhydroxide-stained spherulitic zone (parallel to the pillow margin).