Human, chimpanzee, and macaque SIMS oxygen isotope data

The dataset contains 1217 near-weekly δ18O values sampled sequentially from the innermost enamel along the enamel-dentine junction of one modern human molar, five wild chimpanzee molars, and eleven captive rhesus macaque molars. All teeth were measured with SIMS (SHRIMP-SI, Canberra, Australia) and standardised to Durango. As discussed in the primary manuscript by Smith and colleagues, SIMS δ18O measurements of living and fossil primate enamel can provide a high-fidelity record for paleoseasonality reconstruction, including real-time seasonal rainfall patterns and reasonable estimates of δ18O values in drinking water.

本数据集包含1217个近似周度的δ¹⁸O（氧同位素18）值，采样自1颗现代人类臼齿、5颗野生黑猩猩臼齿与11只圈养恒河猴臼齿的牙本质-牙釉质交界处，沿各牙齿的最内层牙釉质连续采集获得。所有牙齿样品均采用二次离子质谱仪（SIMS，型号SHRIMP-SI，产自澳大利亚堪培拉）进行测试，并以杜兰戈（Durango）标样完成标准化校准。正如Smith及其团队在其核心研究论文中所述，对现生及化石灵长类牙釉质开展的SIMS δ¹⁸O测量，可提供高精度的古季节重建记录，涵盖实时的季节性降雨模式以及饮用水中δ¹⁸O值的合理估算结果。