Figure F4. Geochemical components calculated on a CaCO3-free basis and barite Ba to reactive P ratio vs. depth for Section 199-1221C-11H-3. A. CaCO3-free reactive P (µmol P/g) and the sum of oxide-associated, organic, and authigenic P (and water-soluble P, when applicable). B. CaCO3-free detrital P (µmol P/g). C. CaCO3-free barite (wt%). D. CaCO3-free organic carbon (wt%). E. Barite Ba to reactive P ratios. The ratio (1.4) for a modern equatorial Pacific core top (JGOFS TT013-69MC, 0.11°N, 139.72°W; 4307 mbsl) slightly west of the ODP Site 1221 Paleogene location is shown. To calculate barite Ba to reactive P values, some reactive P values from adjacent samples were averaged in order to compare them directly with the barite values (see Table T4). CaCO3-free data only calculated where data and CaCO3 from Murphy et al. (this volume) have the same depth horizons. See Table T4, for all concentrations. BEE = Benthic Extinction Event.

Figure F4. Geochemical components calculated on a CaCO₃-free basis and barite Ba to reactive P ratio vs. depth for Section 199-1221C-11H-3. A. CaCO₃-free reactive P (µmol P/g) and the sum of oxide-associated, organic, and authigenic P (and water-soluble P, when applicable). B. CaCO₃-free detrital P (µmol P/g). C. CaCO₃-free barite (wt%). D. CaCO₃-free organic carbon (wt%). E. Barite Ba to reactive P ratios. The ratio (1.4) for a modern equatorial Pacific core top (JGOFS TT013-69MC, 0.11°N, 139.72°W; 4307 mbsl) slightly west of the ODP Site 1221 Paleogene location is shown. To calculate barite Ba to reactive P values, some reactive P values from adjacent samples were averaged in order to compare them directly with the barite values (see Table T4). CaCO₃-free data only calculated where data and CaCO₃ from Murphy et al. (this volume) have the same depth horizons. See Table T4 for all concentrations. BEE = Benthic Extinction Event.