Figure F9. Photomicrograph of submillimeter laminae of pyrite and phosphate at the top of Unit IV (Sample 194-1198B-33R-1, 23-25 cm; 503.58-503.78 mbsf). Below, fine dark micritic sediment with minor amounts of planktonic foraminifers and altered rhodoliths are observed.

Figure F9. Photomicrograph of submillimeter laminae of pyrite and phosphate at the top of Unit IV (Sample 194-1198B-33R-1, 23-25 cm; 503.58-503.78 mbsf). Below, fine dark micritic sediment with minor amounts of planktonic foraminifers and altered rhodoliths are observed.