Planktic foraminiferal stable isotopic measurements across the Kuroshio Current Extension, 5–2.5 Ma

Stable isotopic data was measured from planktic foraminiferal species <i>Globigerinoides ruber</i> and <i>G. obliquus</i> from Ocean Drilling Program Holes 1207A, 1208A, and 1209A, drilled from the northwestern Pacific Ocean. Sediment samples were washed over a 63 µm screen then dried overnight in an oven at 50°C. Foraminifera species were picked from the &gt;150 µm fraction, with 2–6 specimens picked per sample. These data transect the Kuroshio Current Extension, and the data provide a spatial and temporal view of the current during the Pliocene to earliest Pleistocene (5–2.5 Ma).

本数据集的稳定同位素数据，通过对西北太平洋大洋钻探计划（Ocean Drilling Program）1207A、1208A与1209A钻孔中的浮游有孔虫物种红拟抱球虫（*Globigerinoides ruber*）及斜拟抱球虫（*G. obliquus*）分析测得。沉积物样品经63微米筛网冲洗后，置于50℃烘箱中过夜烘干；有孔虫标本从粒径大于150微米的粒级组分中挑取，每个样品挑取2~6个个体。本数据集的采样剖面覆盖黑潮延伸体（Kuroshio Current Extension），可为上新世至最早期更新世（5~2.5 Ma）时期的该海流提供空间与时间维度的观测视角。