Testing the general phytoplankton biomarker-based pCO2 proxy across the last 350,000 years

We investigated the ability of the phytol and alkenone-based pCO2 proxies to reconstruct glacial-interglacial pCO2 by comparing biomarker proxy estimates from ODP Site 846 with Antarctic ice core data over the last ~350 ka. The dataset here includes biomarker δ13C, εp and pCO2 estimates, as well as foraminiferal (G. ruber and N. dutertrei) δ13C and δ18O values, and UK'37-based SST estimates.本研究通过对比大洋钻探计划（Ocean Drilling Program, ODP）846站位的生物标志物代用指标估算结果与过去约35万年以来的南极冰芯数据，探究了基于植醇（phytol）与烯酮（alkenone）的pCO2代用指标（pCO2 proxy）重建冰期-间冰期pCO2的能力。本数据集包含生物标志物δ13C、εp及pCO2估算值，同时涵盖有孔虫红拟抱球虫（G. ruber）与杜氏新球虫（N. dutertrei）的δ13C、δ18O数据，以及基于UK'37指标的海表温度（Sea Surface Temperature, SST）估算值。