P-wave velocity of discrete samples (DPW) from IODP Hole 386-M0086B@en

P-wave velocity 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 P-wave velocity measurements were taken from the work halves approx. every 2 meter down core using syringes with an inner diameter of 2 cm. Samples measured 2.5–3 cm long for a sample volume of ~10 cubic centimetres. Samples were then shipped to the European Petrophysics Consortium (EPC) laboratory at the University of Leicester (UK) for processing. Measurements were performed with a Geotek P-wave logger for discrete samples (PWL-D). Measurements were attempted for each sample, however, the unconsolidated lithology of some samples proved unsuitable for the instrument (e.g. too soupy or too friable to be placed between the transducers). […]本数据集为国际大洋发现计划（International Ocean Discovery Program, IODP）386航次（日本海沟古地震研究）指定钻孔的离散样品P波速度数据。该航次陆上作业阶段于2022年2月14日至2022年3月15日期间在"地球号"（D/V Chikyu）钻探船上开展。作业期间，研究人员使用内径2 cm的注射器，以约每2米岩心深度间隔从岩心工作半块采集离散样品用于P波速度测试。所采集样品长度为2.5–3 cm，样品体积约为10立方厘米。随后样品被运送至英国莱斯特大学欧洲岩石物理联合会（European Petrophysics Consortium, EPC）实验室进行预处理。测试采用Geotek离散样品P波速度记录仪（Geotek P-wave logger for discrete samples, PWL-D）完成。研究人员尝试对所有样品开展测试，但部分样品因未固结的岩性特征——例如过于黏稠或过于松散易碎无法放置于换能器之间——导致无法完成测试。……