Supplementary material of Kristallbrockensalt microstructures of the Zechstein-2 rock salt from the Northern Netherlands

This dataset represents supporting data for the paper entitled <strong>Grain size dependent large rheology contrasts of halite at low deviatoric stress: evidence from microstructural study of naturally deformed gneissic Zechstein-2 rock salt (Kristallbrockensalz) from the Northern Netherlands</strong> <strong>, </strong>which has been submitted to <strong>Solid Earth </strong>journal The so-called Kristallbrocken salt has a unique and quite spectacular grain size distribution and marks an important horizon throughout the entire Permian Basin. Based on microstructural observations we interpret that fine grained halite deformed much weaker (i.e. faster) and has characteristic pressure-solution structures, as compared to much less deformed Kristallbrocken megacrystals that developed subgrains during dislocation creep. This dataset contains (1) a collection of addiational micrographs from gamma irradiated halite thin sections, (2) high resolution sample overview scans in tramsmitted and reflected light microscopy and grain and subgrainsize measurements, (3) Supportind EBSD material, (4) BIB-SEM material and (5) XRD results of sedond phase inclusions. (1), (3) and (4) are compiled in PowerPoint (.pptx) format, (2) contains multiple files of microscopical images or panoramas overlain with interpreted digitized grain and subgrain boundaries compiled in Inkscape (.svg) files together with corresponding measurements in Excel (.xls) files and (5) a text document (.txt) of XRD second phase results.本数据集为提交至《Solid Earth》（固体地球）期刊的论文《低偏应力下岩盐的粒度依赖性显著流变学差异：来自荷兰北部天然变形的Zechstein-2组片麻岩状岩盐（Kristallbrockensalz，晶块盐）的微观结构研究证据》提供支撑数据。所谓的晶块盐具有独特且极具特色的粒度分布特征，是整个二叠纪盆地中重要的地层标志层。基于微观结构观测结果，我们认为：相较于在位错蠕变过程中形成亚晶且变形程度更低的晶块巨晶，细粒岩盐变形程度更弱（即变形速率更快），且具备典型的压溶构造。本数据集包含以下内容：(1) 伽马辐照岩盐薄片的额外显微图像集合；(2) 透射光与反射光显微成像的高分辨率样品全景扫描图，以及晶粒与亚晶尺寸测量数据；(3) 配套的电子背散射衍射（Electron Backscatter Diffraction，EBSD）数据；(4) 宽离子束扫描电子显微镜（Broad Ion Beam Scanning Electron Microscopy，BIB-SEM）数据；(5) 第二相包裹体的X射线衍射（X-ray Diffraction，XRD）测试结果。其中(1)、(3)与(4)以PowerPoint（.pptx）格式汇编；(2)包含多份显微图像或全景图文件，这些文件叠加了经数字化解译的晶粒与亚晶边界，以Inkscape（.svg）格式汇编，同时配套Excel（.xls）格式的对应测量数据；(5)为X射线衍射第二相测试结果的文本文档（.txt）。