Raw data files of X-ray diffraction analysis of the clay fraction from sediment core PS1921-1

Format of files is text, two tab-delimited columns: 1. Angle of goniometer, 2. Counts. Samples were measured with a Cobalt K-alpha bulb in goniometer steps of 0.02 degree. File names consist of core label and depth of sample in six digits cm with leading zeros separated by an underline and ending with _clay.txt. All raw data files are stored in one zip-archive, linked to this metadescription. Clay fraction less than 2 micron was quantitatively separated by Atterberg method (settling tube), washed, dried and milled. Clay was resuspended and texturized on sample holder for analysis.

文件格式为文本，包含两列以制表符分隔的数据：1. 旋转式衍射仪角度，2. 计数。样本测量采用钴K-α灯泡，以0.02度的衍射仪步进进行。文件名由核心标签和样本深度（六位数字厘米，以零开头并以下划线分隔）构成，以_clay.txt结尾。所有原始数据文件存储在一个zip压缩文件中，与该元描述相链接。小于2微米的粘土成分通过Atterberg方法（沉降管法）进行定量分离，经清洗、干燥和研磨。粘土被重新悬浮并在样品托架上进行纹理化处理，以进行后续分析。