Okuda, Hanaya; Ikari, Matt J; Roesner, Alexander; Stanislowski, Katja; Hüpers, Andre; Kopf, Achim J; Yamaguchi, Asuka: Version 2 - Friction velocity dependence of sediments from the Nankai Trough, Japan [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.963927 (dataset in review)
Abstract:
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. The dataset has been used in Okuda et al. (2021, JGR Solid Earth, https://doi.org/10.1029/2021JB022546)
As the previous data (https://doi.org/10.1594/PANGAEA.934272) contains errors in the data for C0002T-2K-1, we corrected the errors in this new version of the data.
Related to:
Okuda, Hanaya; Ikari, Matt J; Roesner, Alexander; Stanislowski, Katja; Hüpers, Andre; Yamaguchi, Asuka; Kopf, Achim J (2021): Spatial Patterns in Frictional Behavior of Sediments Along the Kumano Transect in the Nankai Trough. Journal of Geophysical Research: Solid Earth, 126(11), e2021JB022546, https://doi.org/10.1029/2021JB022546
Other version:
Okuda, Hanaya; Ikari, Matt J; Roesner, Alexander; Stanislowski, Katja; Hüpers, Andre; Kopf, Achim J; Yamaguchi, Asuka (2021): Friction velocity dependence of sediments from the Nankai Trough, Japan. PANGAEA, https://doi.org/10.1594/PANGAEA.934272
Project(s):
Funding:
European Research Council (ERC), grant/award no. 714430: Plate-rate experimental deformation: Aseismic, transient or seismic fault slip
Coverage:
Median Latitude: 33.098351 * Median Longitude: 136.748564 * South-bound Latitude: 32.828948 * West-bound Longitude: 136.636708 * North-bound Latitude: 33.308450 * East-bound Longitude: 136.881790
Date/Time Start: 2007-12-29T00:00:00 * Date/Time End: 2008-01-07T00:00:00
Minimum Elevation: -4048.7 m * Maximum Elevation: -1937.5 m
Event(s):
315-C0002B * Latitude: 33.299880 * Longitude: 136.636715 * Elevation: -1937.5 m * Campaign: Exp315 (NanTroSEIZE Stage 1: Megasplay Riser Pilot) * Basis: Chikyu * Method/Device: Drilling/drill rig (DRILL) * Comment: 66 RCB cores; 582 m cored; 35.8 % recovered; 1057 m drilled;
316-C0006E * Latitude: 33.027407 * Longitude: 136.793803 * Date/Time: 2007-12-29T00:00:00 * Elevation: -3875.8 m * Recovery: 330.23 m * Campaign: Exp316 (NanTroSEIZE Stage 1: Shallow Megaslay and Frontal Thrusts) * Basis: Chikyu * Method/Device: Drilling/drill rig (DRILL) * Comment: 49 cores; 409.4 m cored; 80.68 % recovery; 409.4 m drilled; 409.44 m penetrated
316-C0006F * Latitude: 33.027070 * Longitude: 136.793803 * Date/Time: 2008-01-07T00:00:00 * Elevation: -3875.5 m * Recovery: 56.48 m * Campaign: Exp316 (NanTroSEIZE Stage 1: Shallow Megaslay and Frontal Thrusts) * Basis: Chikyu * Method/Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 208 m cored; 27.15 % recovery; 208 m drilled; 208 m penetrated
Comment:
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/sec
velocity before step 0.03 μm/sec to velocity after step 0.1 μm/sec
velocity before step 0.1 μm/sec to velocity after step 0.3 μm/sec
velocity 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/sec
8 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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Okuda, Hanaya | |||
| 2 | Sample code/label | Sample label | Okuda, Hanaya | |||
| 3 | Velocity range | V range | µm/s | Okuda, Hanaya | velocity before step | |
| 4 | Velocity range | V range | µm/s | Okuda, Hanaya | velocity after step | |
| 5 | Steady-state friction coefficients | µ | Okuda, Hanaya | mu0 | ||
| 6 | Stiffness | Stiff | 1/µm | Okuda, Hanaya | ||
| 7 | Stiffness, standard deviation | Stiff std dev | ± | Okuda, Hanaya | ||
| 8 | Friction direct effect | a | Okuda, Hanaya | |||
| 9 | Friction direct effect, standard deviation | a std dev | ± | Okuda, Hanaya | ||
| 10 | Friction evolutionary effect, b1 | b1 | Okuda, Hanaya | b | ||
| 11 | Friction evolutionary effect b1, standard deviation | b1 std dev | ± | Okuda, Hanaya | b | |
| 12 | Critical slip distance | Dc | µm | Okuda, Hanaya | ||
| 13 | Critical slip distance, standard deviation | Dc std dev | ± | Okuda, Hanaya | ||
| 14 | Velocity-dependent friction parameter | a-b | Okuda, Hanaya | difference between a and b | ||
| 15 | Velocity-dependent friction parameter, standard deviation | a-b std dev | ± | Okuda, Hanaya | ||
| 16 | Coefficient of determination | R**2 | Okuda, Hanaya |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
795 data points