Oligocene deep ocean oxygen isotope variations primarily driven by temperature

This dataset contains benthic foraminiferal D47, d18O and d13C data from ODP Site 699 for the interval between 28.1 Ma and 27.2 Ma, resolving several of the largest 110-kyr eccentricity cycles of the middle Oligocene. All data are provided on the I-CDES reference frame using the updated ETH standard values from Bernasconi et al. (2021) and according to the latest methodological procedure using exclusively ETH1-3 for standardization, as recommended by Bernasconi et al. (2021).

本数据集涵盖28.1 Ma至27.2 Ma时段内产自大洋钻探计划（Ocean Drilling Program, ODP）699站位的底栖有孔虫D47、δ18O及δ13C同位素数据，该时段可清晰解析渐新世中期数个规模最大的110千年偏心率周期。所有数据均基于I-CDES参考框架，采用Bernasconi等人（2021）更新的ETH标准值，并严格遵循Bernasconi等人（2021）推荐的最新实验方法流程，仅使用ETH1-3开展标准化处理。