PANGAEA_975377 Shear strength (shear vane) from IODP Hole 386-M0089C 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 Shear strength (shear vane) from IODP Hole 386-M0089C 2025-02-26 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.975377 Earth Science Event label Sample code/label DEPTH, sediment/rock Comment geoscientificInformation 386-M0089C Exp386 International Ocean Discovery Program (IODP) IODP Japan Trench JTPC-04B shear strength Trigger corer vane shear testing DSDP/ODP/IODP sample designation Kaimei 2021-05-10 2021-05-10 Complete 38.72046667 38.72046667 144.1251333 144.1251333 0.225 m (DEPTH, sediment/rock) 0.225 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 2 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

Shear strength from automated shear vane (AVS) of the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). This dataset was obtained at the end of the core processing workflow during the third phase (Personal Sampling Party, PSP) of expedition 386, which took place between 2022-11-15 – 2022-11-30 onboard D/V Chikyu. Measurements were performed on the work halves of core sections using a Wykeham-Farrance AVS. The apparatus consists of four vanes perpendicular to each other that are inserted in the sediment to their full length while attempting to minimize disturbance to the sediment. A motor loads a helical torsion spring and the bottom of the spring is united to the vane. Therefore, the bottom deflection of the spring records the angular displacement of the sediment, from which undrained shear strength has been calculated. Measurements were attempted approx. every 2 m throughout the core, though, some lithologies, especially in the upper few meters were too soft to obtain reasonable results. These core depths are blank in the Shear strength [kPa] column of the presented dataset. 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.975377"! ** 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 2025-02-26 2026-04-30