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 (2025): Shear strength (shear vane) from IODP Hole 386-M0089D [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.975378 (DOI registration in progress)
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Published: 2025-02-26
Abstract:
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
Keyword(s):
Related to:
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
Project(s):
Coverage:
Latitude: 38.720467 * Longitude: 144.125133
Date/Time Start: 2021-05-10T00:00:00 * Date/Time End: 2021-05-10T00:00:00
Minimum DEPTH, sediment/rock: 0.230 m * Maximum DEPTH, sediment/rock: 35.715 m
Event(s):
386-M0089D (JTPC-04B) * Latitude: 38.720467 * Longitude: 144.125133 * Date/Time Start: 2021-05-10T00:00:00 * Date/Time End: 2021-05-10T00:00:00 * Elevation: -7607.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Giant piston corer (GPC) * Comment: IGSN: IBCR0386EH05001. Comment: 40 m
Comment:
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).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | DSDP/ODP/IODP sample designation | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Shear strength | Shear str | kPa | Automated vane shear, Wykeham Farrance, WF23544 | ||
| 5 | Comment | Comment |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
41 data points
Data
| 1 Event | 2 Sample label | 3 Depth sed [m] | 4 Shear str [kPa] | 5 Comment |
|---|---|---|---|---|
| 386-M0089D | 386-M0089D-1H-1,23.0 | 0.230 | sediment too squishy - no separation | |
| 386-M0089D | 386-M0089D-1H-2,25.5 | 1.260 | 9.22 | measured by curiosity because fairly stiff |
| 386-M0089D | 386-M0089D-1H-3,20.0 | 2.215 | 6.76 | |
| 386-M0089D | 386-M0089D-1H-5,20.0 | 4.235 | 7.99 | |
| 386-M0089D | 386-M0089D-1H-7,20.0 | 6.250 | 10.63 | |
| 386-M0089D | 386-M0089D-1H-9,22.0 | 8.290 | 11.86 | |
| 386-M0089D | 386-M0089D-1H-11,25.5 | 10.345 | 10.80 | |
| 386-M0089D | 386-M0089D-1H-13,25.5 | 12.375 | 17.84 | |
| 386-M0089D | 386-M0089D-1H-15,20.0 | 14.375 | 15.02 | |
| 386-M0089D | 386-M0089D-1H-17,20.0 | 16.475 | 9.40 | section has core expension cracks |
| 386-M0089D | 386-M0089D-1H-19,25.5 | 18.630 | 14.14 | |
| 386-M0089D | 386-M0089D-1H-21,25.5 | 20.750 | 12.56 | |
| 386-M0089D | 386-M0089D-1H-23,20.0 | 22.845 | 13.09 | |
| 386-M0089D | 386-M0089D-1H-25,25.5 | 25.010 | 12.03 | |
| 386-M0089D | 386-M0089D-1H-27,25.5 | 27.205 | 11.51 | |
| 386-M0089D | 386-M0089D-1H-29,25.5 | 29.320 | 15.73 | |
| 386-M0089D | 386-M0089D-1H-31,25.5 | 31.500 | 14.50 | in a crack |
| 386-M0089D | 386-M0089D-1H-33,25.5 | 33.665 | 11.68 | |
| 386-M0089D | 386-M0089D-1H-35,25.5 | 35.715 | 12.56 |