Visual core description of IODP Hole 389-M0099C@en

Collection of visual core description (VCD) sheets (hand drawn originals) and digital lithostratigraphic logs from the above given hole of International Ocean Discovery Program (IODP) Expedition 389 (Hawaiian Drowned Reefs). VCD was performed on unsampled archive halves of split core sections directly after line scan imaging, during the onshore phase of expedition 389, which took place between 2025-02-06 to 2025-02-26 at the Bremen Core Repository (BCR) hosted at MARUM – Center for Marine Environmental Sciences, University of Bremen. The lithology of each core section is represented on the hand drawn VCDs by graphic patterns next to the line scan 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 mobile Drilling Information System database, from where it could be accessed semi-automated to produce digital lithologic columns using Strater 5 software (by Golden Software). The dataset is accompanied by a composite plot of core images acquired by optical line scanning. For the original images see corresponding data set 'Line scan images of IODP Hole 389-M00##'. […]本数据集涵盖国际大洋发现计划（International Ocean Discovery Program, IODP）389航次（夏威夷淹没礁）指定钻孔的可视化岩芯描述（Visual Core Description, VCD）手绘图原件，以及数字岩石地层测井资料。本次VCD工作于该航次陆上阶段实施，实施时间为2025年2月6日至2025年2月26日，地点位于不来梅大学海洋环境科学中心（MARUM – Center for Marine Environmental Sciences）托管的不来梅岩芯库（Bremen Core Repository, BCR）；工作对象为经线扫描成像后直接获取的未采样分样岩芯归档半段。每份分样岩芯归档半段的线扫描图像旁，将通过图形图案在手绘VCD图中标注对应岩芯段的岩性特征，此外额外列还标注了用于表征沉积物特性的各类特征。随后，手绘VCD图所载信息被录入移动式钻井信息系统数据库，科研人员可通过该数据库半自动化调取数据，并借助Golden Software公司开发的Strater 5软件生成数字岩性柱状图。本数据集附带经光学线扫描获取的岩芯图像合成图，原始图像详见对应数据集“IODP 389-M00##孔线扫描图像”。……