P-wave velocity of discrete samples (DPW) from IODP Hole 386-M0083A@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). […]本数据集源自国际大洋发现计划（International Ocean Discovery Program, IODP）386航次（日本海沟古地震学）指定钻孔的离散样品纵波速度数据。该航次陆上作业阶段于2022年2月14日至2022年3月15日在钻探船“地球号”（D/V Chikyu）上开展。研究人员沿岩心深度方向以约每2米的间隔，从岩心工作半段中采集离散样品：采用内径2厘米的注射器取样，单样长度为2.5~3厘米，样品体积约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盟（European Petrophysics Consortium, EPC）实验室进行预处理。测试工作采用Geotek公司离散样品纵波测井仪（P-wave logger for discrete samples, PWL-D）开展。研究人员尝试对所有样品完成测量，但部分样品因未固结的岩性特性（如过于稀软或过于松散易碎，无法放置于换能器之间），不适用于该仪器的测试要求。[...]