Velocity-dependent friction measurements, inverse modeling results (slip law) on powdered gouge of ash and scoria samples from Anak Krakatau, Sunda Strait, Indonesia (Table 5)

DOI

We performed laboratory friction experiments on simulated fault gouges of ash and scoria samples from Anak Krakatau (Sunda Strait, Indonesia), representing the two main lithologies that can be found at Anak Krakatau and measured the velocity-dependence of friction in velocity-step tests. Moreover, we have directly measured cohesion on the samples of powdered gouge of ash and scoria. The experiments were carried out using a single-direct shear device at room temperature. For the shearing tests, all samples were crushed and sieved to a grain size < 125 µm. The ash sample was tested under fluid-saturated conditions (3.5 % NaCl brine) and the scoria sample was tested under fluid-saturated (3.5 % NaCl brine) and room dry conditions. The experiments were carried out at two different effective normal loads, 2.5 and 8 MPa, to simulate different depths of a proto shear plane within the volcanic edifice.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.973215
Related Identifier IsPartOf https://doi.pangaea.de/10.1594/PANGAEA.973234
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.973215
Provenance
Creator Stoepke, Fiene ORCID logo; Ikari, Matt J (ORCID: 0000-0002-8164-411X); Cassidy, Mike; Urlaub, Morelia (ORCID: 0000-0002-1116-636X)
Publisher PANGAEA
Publication Year 2024
Funding Reference European Research Council https://doi.org/10.13039/501100000781 Crossref Funder ID 948797 https://cordis.europa.eu/project/id/948797 Slow sliding of volcanic flanks as PREcursor to catastrophic COLLAPSE
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 105 data points
Discipline Earth System Research
Spatial Coverage (105.423 LON, -6.102 LAT)