ln(Si/Al) measurements of sediment core DGL-1905 from the Western South Atlantic@en

This dataset provides elemental ratio - ln(Si/Al) - measured with X-Ray Fluorescence (XRF) from the last 956 ka. The site (DGL-1905) is located in the Sergipe-Alagoas Basin, in Northeastern Brazil, near the São Francisco River mouth. This data allows the interpretation of hydroclimate changes during the last million years. The elemental data were collected at the Laboratory of Oceanography and Paleoceanography (Fluminense Federal University) with a Niton XL3t XRF Analyzer following the minimum resolution of 10 cm.本数据集收录了过去95.6万年（956 ka）中通过X射线荧光光谱法（X-Ray Fluorescence，XRF）测定的元素比值——硅铝比的自然对数（ln(Si/Al)）。采样站位（DGL-1905）位于巴西东北部的塞尔希培-阿拉戈阿斯盆地，毗邻圣弗朗西斯科河河口。该数据可用于反演过去百万年间的水文气候变化过程。元素样品由弗鲁米嫩塞联邦大学海洋学与古海洋学实验室采集，测试采用Niton XL3t型XRF分析仪，采样最低分辨率为10厘米。