X-ray CT images of IODP Hole 386-M0091A@en

Collection of X-ray Computed Tomography (CT) images from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The offshore phase of this expedition took place between 2021-04-13 and 2021-06-01 onboard Japanese R/V Kaimei from and to Yokosuka, Japan. This was followed by an onshore phase onboard D/V Chikyu between 2022-02-14 – 2022-03-15. X-ray CT scanning was performed on whole-round sections on board D/V Chikyu in July 2021, after the offshore phase and prior to the onshore phase, using a Discovery CT 750HD (GE Medical Systems) that produces 32 0.625 mm thick slice images every 0.4 s. Data generated for each core consist of core-axis-normal planes of X-ray attenuation values that are 512 × 512 pixels in size. Data were stored on the server as DICOM formatted files. The DICOM files were restructured to create 3-D images for further investigation. For publication purposes JPG files of each scanned section were produced imaging the plane representative of the split core surface. […]本数据集包含国际大洋发现计划（International Ocean Discovery Program, IODP）386次科考航次（日本海沟古地震学研究）指定钻孔的X射线计算机断层扫描（X-ray Computed Tomography, CT）图像集。该航次的海上作业阶段于2021年4月13日至2021年6月1日期间开展，搭载日本"海明号"（R/V Kaimei）研究船，往返于日本横须贺港。随后的陆上作业阶段于2022年2月14日至2022年3月15日在"地球号"（D/V Chikyu）钻探船上完成。X射线CT扫描于海上作业结束后、陆上作业开始前的2021年7月在"地球号"钻探船上进行，扫描对象为整段岩心，所用设备为通用电气医疗系统的Discovery CT 750HD，该设备可每0.4秒生成32层厚度为0.625mm的断层切片图像。每份岩心对应的生成数据包含垂直于岩心轴的X射线衰减值平面图像，分辨率为512×512像素。原始数据以DICOM格式文件存储于服务器中，后续对DICOM文件进行重构以生成三维图像，用于后续研究工作。为满足出版需求，还为每个扫描得到的岩心段生成了JPG格式图像，用于展示劈开后的岩心表面代表性平面。[…]