Raw data files of X-ray diffraction analysis of the clay fraction from sediment core PS1387-3

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. 旋转计角度；2. 计数。样品以每步0.02度的旋转计步长，使用钴K-α灯泡进行测量。文件名由核心标签和样品深度（以六位数字表示，前导零以下划线分隔，以_clay.txt结尾）。所有原始数据文件存储在一个zip归档中，与该元描述相关联。小于2微米的粘土组分通过阿特堡法（沉降管）进行定量分离，清洗、烘干并磨碎。粘土被重新悬浮并放置在样品台上进行纹理分析。