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): P-wave velocity of discrete samples (DPW) from IODP Hole 386-M0087B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.975294
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Published: 2025-02-28 • DOI registered: 2025-04-19
Abstract:
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
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: 39.440650 * Longitude: 144.216183
Date/Time Start: 2021-05-03T00:00:00 * Date/Time End: 2021-05-03T00:00:00
Minimum DEPTH, sediment/rock: 0.520 m * Maximum DEPTH, sediment/rock: 18.575 m
Event(s):
386-M0087B (JTPN-02A) * Latitude: 39.440650 * Longitude: 144.216183 * Date/Time Start: 2021-05-03T00:00:00 * Date/Time End: 2021-05-03T00:00:00 * Elevation: -7520.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Giant piston corer (GPC) * Comment: IGSN: IBCR0386EHU4001. Comment: 20 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 | Velocity, compressional wave | Vp | m/s | P-wave logger for discrete samples (PWL-D), GEOTEK | ||
| 5 | Proposed International Geo Sample Number | Prop IGSN |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
30 data points
Data
| 1 Event | 2 Sample label | 3 Depth sed [m] | 4 Vp [m/s] | 5 Prop IGSN |
|---|---|---|---|---|
| 386-M0087B | 386-M0087B-1H-1,52.0-54.0 | 0.520 | 1765 | IBCR0386EX5BI01 |
| 386-M0087B | 386-M0087B-1H-3,74.0-76.0 | 2.440 | 1836 | IBCR0386EX8BI01 |
| 386-M0087B | 386-M0087B-1H-5,85.0-87.0 | 4.560 | 1770 | IBCR0386EX6BI01 |
| 386-M0087B | 386-M0087B-1H-7,85.0-87.0 | 6.585 | 1739 | IBCR0386EX7BI01 |
| 386-M0087B | 386-M0087B-1H-9,85.0-87.0 | 8.600 | 1730 | IBCR0386EX9BI01 |
| 386-M0087B | 386-M0087B-1H-11,85.0-87.0 | 10.610 | 1722 | IBCR0386EXABI01 |
| 386-M0087B | 386-M0087B-1H-13,85.0-87.0 | 12.625 | 1767 | IBCR0386EXBBI01 |
| 386-M0087B | 386-M0087B-1H-15,85.0-87.0 | 14.635 | 1723 | IBCR0386EXCBI01 |
| 386-M0087B | 386-M0087B-1H-17,85.0-87.0 | 16.655 | 1706 | IBCR0386EXDBI01 |
| 386-M0087B | 386-M0087B-1H-19,75.0-77.0 | 18.575 | 1704 | IBCR0386EXEBI01 |