PANGAEA_975301 P-wave velocity of discrete samples (DPW) from IODP Hole 386-M0089A Strasser, Michael; Ikehara, Ken; Everest, Jeremy D; Maeda, Lena; Hochmuth, Katharina; Grant, Hannah; Stewart, Margaret S; Sakurai, Noriaki; Yokoyama, Takahiro; Bao, Rui; Bellanova, Piero; Brunet, Morgane; Cai, Zhirong; Cattaneo, Antonio; Hsiung, Kan-Hsi; Huang, Jyh-Jaan Steven; Ishizawa, Tahashi; Itaki, Takuya; Jitsuno, Kana; Johnson, Joel E; Kanamatsu, Toshiya; Keep, Myra; Kioka, Arata; Kölling, Martin; Luo, Min; März, Christian; McHugh, Cecilia M G; Micallef, Aaron; Nagahashi, Yoshitaka; Pandey, Dhananjai K; Proust, Jean-Noël; Rasbury, Troy; Riedinger, Natascha; Satoguchi, Yasufumi; Sawyer, Derek E; Seibert, Chloé; Silver, Maxwell; Straub, Susanne M; Virtasalo, Joonas J; Wang, Yong Hong; Wu, Ting-Wei; Zellers, Sarah D P-wave velocity of discrete samples (DPW) from IODP Hole 386-M0089A 2025-02-28 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.975301 Earth Science Event label Sample code/label DEPTH, sediment/rock Velocity, compressional wave Proposed International Geo Sample Number geoscientificInformation 386-M0089A Exp386 International Ocean Discovery Program (IODP) IODP Japan Trench JTPC-04B P-wave velocity Trigger corer DSDP/ODP/IODP sample designation P-wave logger for discrete samples (PWL-D), GEOTEK Kaimei 2021-05-09 2021-05-09 Complete 38.72003333 38.72003333 144.1256333 144.1256333 0.89 m (DEPTH, sediment/rock) 0.89 m (DEPTH, sediment/rock) IODP Integrated Ocean Drilling Program / International Ocean Discovery Program unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 3 data points text/tab-separated-values Strasser, Michael; Ikehara, Ken; Everest, Jeremy D; IODP Expedition 386 Scientists (2023): Japan Trench Paleoseismology. Proceedings of the International Ocean Discovery Program, International Ocean Discovery Program, 386, https://doi.org/10.14379/iodp.proc.386.2023 QAQC386_Web_G_PP_3_Pwave discrete (URI: https://download.pangaea.de/reference/140411/attachments/QAQC386_Web_G_PP_3_Pwave%20discrete.zip)

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). Operator notes: Data from section numbers > 30 can be associated to a decrease in velocity values, this is likely due to cracks opening in the samples when applying pressure on it at the time of measurement (as observed by operators). For holes M0081E & F Sections 1-29 velocity values are overestimated due to an issue with the calibration. For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023 ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.975301"! ** Data was submitted and proofread by Vera Barbara Bender, MARUM - Center for Marine Environmental Sciences (University Bremen) on behalf of ECORD Science Operator Data Management (https://www.ecord.org).

https://doi.org/10.14379/iodp.proc.386.2023 Exp386 https://doi.org/10.14379/iodp.proc.386.2023 Japan Trench Paleoseismology https://hdl.handle.net/10013/epic.27914.d001 DSDP/ODP/IODP sample designation https://www.iodp.org/ IODP https://www.jamstec.go.jp/e/about/equipment/ships/kaimei.html Kaimei DIF 9.4 2025-02-28 2026-06-23