Stoepke, Fiene; Ikari, Matt J; Morgan, Julia K; Urlaub, Morelia (2025): Results of direct shear experiments on intact and powdered samples from the submarine flank of Kilauea volcano (Hawaii, USA): Velocity-dependent Friction Measurements, Input Parameters for Forward Modeling [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.985071, In: Stoepke, F et al. (2025): Results of direct shear experiments on intact and powdered samples from the submarine flank of Kilauea volcano (Hawaii, USA) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.985068
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Published: 2025-10-15 • DOI registered: 2025-11-13
Abstract:
We performed laboratory friction experiments on simulated fault gouges and intact samples from the submarine flank of Kilauea volcano (Hawaii, USA) and measured the velocity-dependence of friction in velocity-step tests. Moreover, we have directly measured cohesion on the fault gouge and intact samples from Kilauea's submarine flank. The experiments were carried out using a single-direct shear device at room temperature. For the shearing tests, the samples simulating fault gouge were crushed and sieved to a grain size of < 125 µm. The intact samples were tested as mini-cores. All experiments were carried out under fluid-saturated conditions (3.5 % NaCl brine) and under an effective normal load of 10 MPa.
Funding:
European Research Council (ERC), grant/award no. 948797: Slow sliding of volcanic flanks as PREcursor to catastrophic COLLAPSE
Coverage:
Latitude: 19.115939 * Longitude: -155.039383
Date/Time Start: 1998-01-01T00:00:00 * Date/Time End: 2001-01-01T00:00:00
Minimum Elevation: -2400.0 m * Maximum Elevation: -2400.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Stoepke, Fiene | |||
| 2 | Experiment | Exp | Stoepke, Fiene | |||
| 3 | Sliding velocity, initial | V init | µm/s | Stoepke, Fiene | Potentiometric displacement sensor, Burster, 8712 | |
| 4 | Sliding velocity, final | V final | µm/s | Stoepke, Fiene | Potentiometric displacement sensor, Burster, 8712 | |
| 5 | Displacement | DIS | µm | Stoepke, Fiene | Potentiometric displacement sensor, Burster, 8712 | Start Displacement (Reference Point) |
| 6 | Displacement | DIS | µm | Stoepke, Fiene | Potentiometric displacement sensor, Burster, 8712 | End Displacement |
| 7 | Displacement | DIS | µm | Stoepke, Fiene | Potentiometric displacement sensor, Burster, 8712 | Velocity Step Displacement |
| 8 | Slip weakening rate | Δµ/Δx | 1/µm | Stoepke, Fiene | Matlab code RSFit3000, according to Skarbek and Savage (2019) | Dm/Dx |
| 9 | Initial friction coefficient | µ0 | Stoepke, Fiene | |||
| 10 | Friction direct effect | a | Stoepke, Fiene | |||
| 11 | Friction evolutionary effect, b1 | b1 | Stoepke, Fiene | |||
| 12 | Friction evolutionary effect, b2 | b2 | Stoepke, Fiene | |||
| 13 | Critical slip distance dc1 | dc1 | µm | Stoepke, Fiene | ||
| 14 | Critical slip distance dc2 | dc2 | µm | Stoepke, Fiene | ||
| 15 | Stiffness | Stiff | 1/µm | Stoepke, Fiene |
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:
2181 data points
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