Radiogenic isotope data (Nd and Pb) 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. The radiogenic isotope data (Nd and Pb) consist of 53 samples and were measured using a Nu Plasma II Multi-Collector Inductively Coupled Plasma Mass Spectrometer (MC-ICP-MS). The radiogenic isotope data (Nd and Pb) were used to infer changes in sediment provenance across the mPWP. 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.

本数据集汇聚了来自综合海洋钻探计划（Integrated Ocean Drilling Program，简称 IODP）站点 303-U1307 的更新世阶段沉积物粒度分析数据。该站点位于埃里克漂流区，并于 2004 年进行钻探。放射性同位素数据（钕和铅）共包含 53 个样本，并采用 Nu Plasma II 多收集器电感耦合等离子体质谱仪（Multi-Collector Inductively Coupled Plasma Mass Spectrometer，简称 MC-ICP-MS）进行测量。通过这些放射性同位素数据（钕和铅），研究人员得以推断出在晚中新世冰期（mid-Pliocene Warm Period，简称 mPWP；时间跨度为 3.025-3.264 Ma）期间，沉积物来源的变化。所有数据均于 2023 年生成。数据集的时间范围为约 290 万年至 320 万年（总计约 30 万年），涵盖了 mPWP 时期，平均采样分辨率为约 4 千年。