Palynology, biomarkers and droplet digital PCR data from the Late Quaternary of Site GS15-198-38, Greenland Sea

At Site GS15-198-38, Greenland Sea, we analysed the surface sample (from a multicore) and eight Late Quaternary samples from a Calypso core. The age model for the Calypso core GS15-198-38CC is based on seven AMS 14C ages down to 345 cm, and a 5-cm resolution N. pachyderma sinistral isotope stratigraphy (1) below that level. We analysed the palynology, generated organic biomarker data (including IP25, sterols) and performed quantitative PCR (droplet digital PCR, ddPCR) of the sympagic dinoflagellate Polarella glacialis.

在格陵兰海GS15-198-38站位，我们对多管采集的表层沉积物样品以及一根Calypso柱状样（Calypso core）中的8件晚第四纪沉积物样品开展了分析。该Calypso柱状样GS15-198-38CC的年代模型基于345cm以浅的7个加速器质谱碳-14（AMS 14C）测年数据，以及该深度以下分辨率为5cm的左旋厚壁新方球虫（N. pachyderma sinistral）同位素地层学记录(1)。我们对该套样品进行了孢粉学分析，获取了有机生物标志物数据（包含IP25、甾醇类化合物），并针对冰栖沟鞭藻（sympagic dinoflagellate）极地帕雷拉藻（Polarella glacialis）开展了定量聚合酶链反应（quantitative PCR, qPCR）及液滴数字聚合酶链反应（droplet digital PCR, ddPCR）检测。