14C-age dating of the planktonic foraminifera Globigerinoides ruber from gravity cores taken during RV MARIA S. MERIAN cruise MSM82/2, headwall area in the Sahara Slide Complex, Northwest Africa@en

Gravity cores were acquired with a 5 m-long standard gravity corer during RV Maria S. Merian Cruise MSM82/2 (cores MSM82/2-34, MSM82/2-35 and MSM82/2-36). They were studied by color analysis, photography and sedimentological description. Accelerated Mass Spectrometry 14C-age dating of the planktonic foraminifera Globigerinoides ruber (Bonfardeci et al., 2018) was performed at the Leibniz Laboratory for Radiometric Dating and Stable Isotope Research at Kiel University. The Calib 704 and the Marine 13 calibration curve were applied to calibrate 14C age to calendar years (Reimer et al., 2013); the reservoir age was set to ±500 years (Mangerud and Gulliksen, 1975).本研究使用5米长的标准重力取样器，于玛利亚·S·梅里安号（RV Maria S. Merian）科考航次MSM82/2期间采集了重力岩芯，岩芯编号分别为MSM82/2-34、MSM82/2-35及MSM82/2-36。上述岩芯通过颜色分析、摄影成像及沉积学描述开展了系统性研究。针对浮游有孔虫红色抱球虫（Globigerinoides ruber）的加速器质谱（Accelerated Mass Spectrometry, AMS）¹⁴C测年工作（Bonfardeci等，2018）由基尔大学莱布尼茨放射性测年与稳定同位素研究实验室完成。本研究采用Calib 704与Marine 13两条校正曲线，将¹⁴C测年结果校准为日历年（Reimer等，2013）；并将碳库年龄设定为±500年（Mangerud与Gulliksen，1975）。