Visual core description of IODP Hole 386-M0084D@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-M0084D\"), from where it could be accessed semi-automated to produce digital lithologic columns and composite plots using Strater (Golden Software). […]

本数据集包含国际大洋发现计划（International Ocean Discovery Program, IODP）386航次（日本海沟古地震研究）指定钻孔的岩心目视描述（Visual Core Description, VCD）工作表（含手绘原稿与数字复刻版）以及岩性综合柱状图集合。该航次的陆上作业阶段于2022年2月14日至2022年3月15日在“地球号”（D/V Chikyu）钻探船上开展，VCD工作于线扫描成像完成后即刻在分样岩心的未采样归档半芯上进行。每份分样归档半芯的X射线计算机断层扫描（X-ray CT）图像旁配有图形图案，以此表征对应岩心段的岩性，并呈现在手绘VCD工作表中。此外，额外列中还标注了表征沉积物特征的各类沉积构造与相关参数。随后，手绘VCD工作表中的信息被录入钻井信息系统数据库（详见数据集"Description of lithologic section units of IODP Hole 386-M0084D"），后续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。[…]