Sortable silt abundance of IODP Site 303-U1307

This dataset consists of grain-size analysis of a Pliocene interval from Integrated Ocean Drilling Program (IODP) site 303-U1307. The site is located on Eirik Drift and was cored in 2004. Sortable silt abundance (%) and mean size (µm) were calculated from the grain-size data and used to assess bottom-current strength. All data were generated in 2023. The timespan of the data set is from ~2.9 Ma to 3.2 Ma (~300 ka total duration), which covers the mid-Pliocene Warm Period (mPWP; 3.025-3.264 Ma) with an average sampling resolution of ~4 ka.

本数据集由综合海洋钻探计划（Integrated Ocean Drilling Program，简称 IODP）303-U1307 站位的更新世期间沉积物粒度分析数据构成。该站点位于艾里克漂移带，并于 2004 年进行钻探。通过对粒度数据进行整理，计算了可排序的粉砂含量（百分比）和平均粒径（微米），并以此评估底部流强度。所有数据均于 2023 年生成。数据集的时间跨度约为 290 万年至 320 万年，总时长约 300 千年，覆盖了中期更新世暖期（mid-Pliocene Warm Period，简称 mPWP；时间范围为 3.025-3.264 Ma），平均采样分辨率为约 4 千年。