Moisture and density (MAD) from IODP Hole 386-M0092B

Moisture and density (MAD) data from discrete samples from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). During the onshore phase of expedition 386, which took place between 2022-02-14 – 2022-03-15 onboard D/V Chikyu, discrete samples for MAD measurements (bulk density, dry density, grain density, water content, porosity, and void ratio) were taken from the work halves using 10 cubic centimetre syringes at an approx. down-core resolution of every 2 meters. Sampling depths were adapted and slightly modified for layers of special interest, such as tephras. Samples were processed and measured directly after sampling onboard Chikyu. For the measurements themselves samples were transferred to glass beakers of known weight and volume. […]国际大洋发现计划（International Ocean Discovery Program, IODP）386航次（日本海沟古地震学）上述钻孔的离散样品含水率与密度（Moisture and Density, MAD）数据集。该航次陆上阶段于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，研究人员以约每2米的岩芯向下采样分辨率，使用10立方厘米注射器从岩芯工作半面采集用于MAD测试的离散样品，测试指标涵盖体积密度、干密度、颗粒密度、含水率、孔隙度与孔隙比。针对火山灰层等特殊关注层位，采样深度进行了调整与小幅优化。样品在“地球号”船上完成采样后即刻开展处理与测试。测试过程中，样品被转移至已知重量和体积的玻璃烧杯中。[...]