Cenozoic clumped isotope temperature record from the deep North Atlantic

This dataset contains clumped isotope (D47), d18O and d13C data from benthic foraminifera from four IODP sites from the Newfoundland margin. The D47 data were used to reconstruct deep ocean temperature across the Cenozoic era. The reported data were generated at ETH Zürich and the University of Bergen between 2015 and 2020. Data for this study were mostly obtained from core catcher samples, with an average time resolution of 1.2 million years. For each sample, 13-45 replicate measurements were performed on different species of benthic foraminifera. Data in this dataset are sample-averaged isotope and temperature data. In addition, replicate-level raw data including standard data for correction are stored at Earthchem (doi:10.26022/IEDA/112213) to allow for reprocessing of the data.

本数据集涵盖纽芬兰陆缘四个国际大洋发现计划（IODP）站位的底栖有孔虫团簇同位素（clumped isotope）D47、δ¹⁸O及δ¹³C数据。其中D47数据被用于重建新生代时期的深海温度。本研究报告的相关数据于2015年至2020年间在苏黎世联邦理工学院与卑尔根大学完成测定。数据主要取自岩心抓样器获取的样品，平均时间分辨率为120万年。针对每个样品，研究人员对不同种类的底栖有孔虫开展了13至45次平行测量。本数据集收录的数据均为经过样品平均后的同位素与温度数据。此外，包含校正用标准数据在内的平行测量级原始数据已存储于Earthchem数据库（doi:10.26022/IEDA/112213），可供后续数据再处理使用。