Moisture and density (MAD) from IODP Hole 386-M0095A

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.For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023

国际大洋发现计划（International Ocean Discovery Program, IODP）386航次（日本海沟古地震学）上述钻孔离散样品的含水率与密度（Moisture and Density, MAD）数据集。该航次陆上作业阶段于2022年2月14日至2022年3月15日在“地球号”（D/V Chikyu）科考船上开展，研究人员使用10立方厘米注射器，以约每2米的岩芯向下采样间距，从岩芯工作半面采集用于MAD测量的离散样品，测量指标包括体积密度、干密度、颗粒密度、含水率、孔隙度及孔隙比。针对火山灰层等特殊关注层位，采样深度进行了适配与适度调整。样品采集后即刻在“地球号”科考船上完成处理与测量。测量环节中，样品被转移至已知重量与体积的玻璃烧杯中。更多方法学细节可参考Strasser M.等人2023年发表的方法章节，链接：https://doi.org/10.14379/iodp.proc.386.102.2023