Figure F7. Comparisons of delta18O ranges of equilibrium pure calcite and aragonite (shaded bars) and those of Adeonellopsis and Nevianipora (open circles). delta18O values of Nevianipora are corrected for the effects of MgCO3-dependent oxygen isotope fractionation (Tarutani et al., 1969). A number in the parentheses represents the "laboratory sample number" from Table 1 of Bone and James (1997).

Figure F7. Comparisons of

¹⁸O ranges of equilibrium pure calcite and aragonite (shaded bars) and those of Adeonellopsis and Nevianipora (open circles).

¹⁸O values of Nevianipora are corrected for the effects of MgCO₃-dependent oxygen isotope fractionation (Tarutani et al., 1969). A number in the parentheses represents the "laboratory sample number" from Table 1 of Bone and James (1997).