Atlantic sediment petrography analysis data from mult-corer samples collected in the Amazon Delta and Sierra Leone Rise during R/V Endeavor cruises EN-480 and EN-481 in 2010

These data include the sediment petrographic analysis for Amazon Delta and Sierra Leone Rise Sediments. These data were collected on multiple cruises in throughout the Atlantic; specifically, in the Amazon Delta (EN-480; July 2010) and Sierra Leone Rise (EN-481; August 2010). Sediments were collected using multi-corer and kept frozen until analysis.
Sediments were analyzed quantitatively via microscopy by Dr. Bertrand Ligouis at the Laboratories for Applied Organic Petrology at the University of Tübingen, Germany. These data help better constrain pyrogenic carbon concentrations and accumulation rates into Atlantic sediments.

These data were published in St.Laurent, et al. (2023).

本数据集涵盖亚马孙三角洲（Amazon Delta）与塞拉利昂海隆（Sierra Leone Rise）沉积物的沉积岩石学分析（sediment petrographic analysis）数据。本次数据采集自大西洋全域的多次科考航次，具体涉及亚马孙三角洲航次（EN-480；2010年7月）与塞拉利昂海隆航次（EN-481；2010年8月）。沉积物采用多管采样器（multi-corer）采集，并全程低温冷冻保存直至分析测试。
沉积物的定量显微分析由德国蒂宾根大学应用有机岩石学实验室的Bertrand Ligouis博士完成。本数据集可为大西洋沉积物中热解碳（pyrogenic carbon）的浓度与沉积堆积速率的限定提供更精准的约束依据。
本数据集相关研究成果已发表于St.Laurent等（2023）的学术论文中。