Visual core description of IODP Hole 386-M0091D@en

Collection of visual core description (VCD) sheets (hand drawn originals and digital representations) and lithologic composite plots from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). VCD was performed on unsampled archive halves of split cores, directly after linescan imaging, during the onshore phase of expedition 386, which took place between 2022-02-14 – 2022-03-15 onboard D/V Chikyu. The lithology of each core section is represented on the hand drawn VCDs by graphic patterns next to the X-ray CT image of the archive-half core section. Further, a wide variety of features that characterize the sediment are indicated in additional columns. The information from the hand-drawn VCD sheets was then transferred into the Drilling Information System database (s. also datasets \"Description of lithologic section units of IODP Hole 386-M0091D\"), from where it could be accessed semi-automated to produce digital lithologic columns and composite plots using Strater (Golden Software). […]本数据集涵盖国际大洋发现计划（International Ocean Discovery Program, IODP）386科考航次（日本海沟古地震研究项目）指定钻探孔位的岩心视觉描述（visual core description, VCD）表（含手绘原稿与数字复刻件）及岩性综合柱状图。VCD工作开展于该航次的陆上处理阶段，该阶段于2022年2月14日至2022年3月15日在“地球号”（D/V Chikyu）钻探船上实施，具体流程为：对劈分岩心完成线扫描成像后，直接针对未取样的归档半岩心开展VCD工作。手绘VCD表中，以归档半岩心段X射线CT图像旁的图形图案表征各岩心段的岩性；此外，额外列项中还标注了多种表征沉积物特征的标识。后续，手绘VCD表中的信息被录入钻井信息系统数据库（详见数据集“IODP 386-M0091D孔岩性段单元描述”），可通过该数据库半自动调取信息，借助Golden Software公司的Strater软件生成数字岩性柱状图与综合柱状图。[…]