Raw data files of X-ray diffraction analysis of the clay fraction from sediment core PS1226-1

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.文件格式为文本文件，包含两列以制表符分隔的数据：1. 测角仪角度（Angle of goniometer），2. 计数（Counts）。样品采用钴Kα射线源（Cobalt K-alpha bulb）进行测试，测角仪步长设为0.02度。文件名由核心标签与带六位前导零的样品深度（单位：厘米）组成，二者以下划线分隔，后缀为_clay.txt。所有原始数据文件均存储于一个压缩归档包中，与本元描述相关联。粒径小于2微米的黏土组分通过阿特贝格法（Atterberg method，沉降管法）完成定量分离，经洗涤、干燥与研磨处理后，将黏土重新悬浮并涂覆于样品支架上，以供分析测试。