Figure 1.1-3. Carbon isotopic values of structural bone apatite carbonate (¹³C_sc) vs carbon values of the calcite cements (¹³C_cc). 1.2. Oxygen isotopic values of structural bone apatite carbonate (¹⁸O_sc) vs oxygen values of the calcite cements (¹⁸O_cc). 1.3. Oxygen isotopic values of structural bone apatite carbonate (¹⁸O_sc) vs oxygen values of the bone phosphate (¹⁸O_p). Knowing the carbonate oxygen isotopic values have been diagenetically altered, the lack of covariation between the bone phosphate and carbonate indicates preservation of the phosphate signal.

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