Raw data files of X-ray diffraction analysis of the clay fraction from sediment core PS1916-1

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.所有数据文件均为文本格式，包含两列以制表符分隔的字段：第一字段为测角仪（goniometer）角度，第二字段为计数值。样品测试采用钴Kα射线管（Cobalt K-alpha bulb），测角仪步进角度为0.02度。文件名由核心标签与样品深度（单位为厘米，以六位数字格式存储，不足位数时前置补零）两部分组成，二者以下划线分隔，文件名后缀为`_clay.txt`。所有原始数据文件均存储于单个ZIP压缩归档（zip-archive）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伯格法（Atterberg method，沉降管法）完成定量分离，随后经洗涤、干燥与研磨处理。将所得黏土重新悬浮后，涂布于样品支架上以供分析。