Marine Isotope Stage 5e diatom assemblages in marine sediment core PC509 (-68.31 degN, -86.03 degE, Cruise JR179)

This dataset presents the relative diatom abundances of 56 species/groups from the 132-120 ka interval in marine sediment core PC509 (-68.31 degN, -86.03 degE). This age interval corresponds to the peak of Marine Isotope Stage 5e (130- 116 ka). Microscope slides were prepared using a method adapted from Scherer (1994) and 300+ diatom valves were counted for each depth sample to produce the relative percentage abundance of each diatom species/group. This project was funded by the UK Natural Environment Research Council Grant NE/L002531/1

本数据集呈现了海洋沉积物岩芯PC509（北纬-68.31度，东经-86.03度）中132-120千年（ka）时段内56种/组硅藻的相对丰度。该时段对应海洋同位素阶段5e（Marine Isotope Stage 5e，130-116千年）的峰值期。显微镜载玻片采用Scherer（1994）改良的方法制备，每个深度样本计数300个以上硅藻壳瓣，以得到各硅藻种/组的相对百分比丰度。本项目由英国自然环境研究委员会（UK Natural Environment Research Council）资助，grant号为NE/L002531/1。