Friction velocity dependence of sediments from the Nankai Trough, Japan

DOI

To investigate frictional behavior of sediments along the Kumano transect in the Nankai Trough, Japan, friction experiments were conducted using a single-direct shear device at MARUM, University of Bremen under room temperature conditions with 3.5% simulated seawater. Intact sediment cores from the input, prism toe, and inner prism sites collected by the IODP NanTroSEIZE project were tested. In this dataset, parameters of the rate- and state-dependent friction law for each sample were reported, which were obtained by the velocity step tests from 0.01 to 30 μm/sec.

File descriptions: There are 12 parameters:mu0: steady-state friction coefficient before the velocity step (dimensionless)k: stiffness (1/μm)k_std: 1-sigma standard deviation of k (1/μm)a: parameter for direct effect (dimensionless)a_std: 1-sigma standard deviation of a (dimensionless)b: parameter for evolutionary effect (dimensionless)b_std: 1-sigma standard deviation of b (dimensionless)dc: parameter for evolutionary effect (μm)dc_std: 1-sigma standard deviation of dc (μm)a_minus_b: difference between a and b (dimensionless)a_minus_b_std: 1-sigma standard deviation of a_minus_b (dimensionless)R_squared: coefficient of determination (dimensionless)determined for 7 velocity stepping conditions of:velocity before step 0.01 μm/sec to velocity after step 0.03 μm/secvelocity before step 0.03 μm/sec to velocity after step 0.1 μm/secvelocity before step 0.1 μm/sec to velocity after step 0.3 μm/secvelocity before step 0.3 μm/sec to velocity after step 1 μm/sec (no data for C0011B 25R-1)velocity before step 1 μm/sec to velocity after step 3 μm/sec (no data for C0011B 25R-1)velocity before step 3 μm/sec to velocity after step 10 μm/sec (no data for C0011B 25R-1)velocity before step 10 μm/sec to velocity after step 30 μm/sec8 samples along the Kumano transect in the Nankai Trough, Japan, were used:C0011B 25R-1 (IODP Exp. 322, Lat: 32°49.7369′N, Lon: 136°52.9074′E, Depth: 539.79 mbsf)C0011B 8R-3 (IODP Exp. 322, Lat: 32°49.7369′N, Lon: 136°52.9074′E, Depth: 405.57 mbsf)C0006F 19R-1 (IODP Exp. 316, Lat: 33°01.6242′N, Lon: 136°47.6282′E, Depth: 562.67 mbsf)C0006E 36X-1 (IODP Exp. 316, Lat: 33°01.6444′N, Lon: 136°47.6282′E, Depth: 277.54 mbsf)C0011B 55R-5 (IODP Exp. 322, Lat: 32°49.7369′N, Lon: 136°52.9074′E, Depth: 781.80 mbsf)C0006E 12H-3 (IODP Exp. 316, Lat: 33°01.6444′N, Lon: 136°47.6282′E, Depth: 72.80 mbsf)C0002B 63R-1 (IODP Exp. 315, Lat: 33°17.9928′N, Lon: 136°38.2029′E, Depth: 1033.80 mbsf)C0002T 2K-1 (IODP Exp. 358, Lat: 33°18.5070′N, Lon: 136°38.2025′E, Depth: 2840.54 mbsf)We fitted the aging-law type rate- and state-dependent friction law (Dieterich, 1979) to the experimental data using RSFit3000 (Skarbek & Savage, 2019) to obtain these parameters. Experimental data were obtained using the single-direct shear device at MARUM, University of Bremen, Germany.

Identifier
DOI https://doi.org/10.1594/PANGAEA.934272
Related Identifier https://doi.pangaea.de/10.1594/PANGAEA.963927
Related Identifier https://doi.org/10.1029/2021JB022546
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.934272
Provenance
Creator Okuda, Hanaya ORCID logo; Ikari, Matt J (ORCID: 0000-0002-8164-411X); Roesner, Alexander ORCID logo; Stanislowski, Katja ORCID logo; Hüpers, Andre; Kopf, Achim J; Yamaguchi, Asuka ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference European Research Council https://doi.org/10.13039/501100000781 Crossref Funder ID 714430 https://cordis.europa.eu/project/id/714430 Plate-rate experimental deformation: Aseismic, transient or seismic fault slip; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID JP19H04621 https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-19H04621 JSPS KAKENHI; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID JP20J20413 https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20J20413 JSPS KAKENHI; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID JP21H01189 https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21H01189 JSPS KAKENHI; Japan Society for the Promotion of Science https://doi.org/10.13039/501100001691 Crossref Funder ID JP21H05202 https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-21H05202/ JSPS KAKENHI
Rights Licensing unknown: Please contact principal investigator/authors to gain access and request licensing terms; Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Representation
Resource Type Dataset
Format text/plain
Size 6.9 kBytes
Discipline Earth System Research
Spatial Coverage (136.637W, 32.829S, 136.882E, 33.308N)
Temporal Coverage Begin 2007-12-29T00:00:00Z
Temporal Coverage End 2008-01-07T00:00:00Z