Fracture Patterns in Laminated Mancos Shale

Mancos shale samples scanned pre and post-triaxial testing. Triaxial testing at various stress loading paths and confining pressures ranging from 100 to 500 psi. Three types of samples (Perpendicular Bedding- PD_ , Directional Bedding- 45_ , Parallel Bedding- PL_) Videos of fracture network visualization using Fiji/Image-J post-triaxial testing can be found here: https://www.youtube.com/playlist?list=PLv0npDbE5HXvEdptgajRDG3x-lwmtGDbr X-ray power ranging from 16.9 to 30.3 W. Copper filters used with thicknesses varying from 0 to 0.25 mm. Exact voltage and current settings for each scan are listed separately. Scanned at 4 fps (frame per second) with an exposure time of 250 ms to give 2984 projections over 360 degrees. Image type is 16-bit. Image properties for each scan are listed separately. Resolution (both voxel size and spot size) ranging from 65 to 75 microns Device: Nikon XTH-225 Graduate Research Assistants: Matthew Ramos and Jeffery Luo Principal Investigator: Dr. Nicolas Espinoza (https://sites.utexas.edu/eagle/) Facility Location: The University of Texas at Austin本数据集包含曼科斯页岩（Mancos shale）试样在三轴试验前后的扫描数据。所有试样采用多种应力加载路径开展三轴试验，围压范围为100至500 psi（磅每平方英寸）。试样共分为三类：垂直层理试样（Perpendicular Bedding，PD_）、斜交层理试样（Directional Bedding-45_）与平行层理试样（Parallel Bedding，PL_）。三轴测试后使用Fiji/Image-J进行裂隙网络可视化的相关视频可通过以下链接获取：https://www.youtube.com/playlist?list=PLv0npDbE5HXvEdptgajRDG3x-lwmtGDbr。本次扫描采用的X射线功率范围为16.9至30.3 W，使用厚度介于0至0.25 mm的铜滤片。每次扫描的精确电压与电流参数将单独列出。扫描帧率为4 fps（帧每秒），曝光时长250 ms（毫秒），在360度扫描范围内共采集2984幅投影图像。所有扫描图像均为16位格式，每次扫描的图像属性将单独列出。扫描分辨率（含体素尺寸与光斑尺寸）范围为65至75微米，实验设备为尼康XTH-225（Nikon XTH-225）。研究生研究助理：Matthew Ramos与Jeffery Luo。首席研究员：Nicolas Espinoza博士（个人主页：https://sites.utexas.edu/eagle/）。实验设施位于德克萨斯大学奥斯汀分校。