Frictional behavior of input sediment to the Sumatra subduction zone from IODP Site 362-U1480

DOI

We report on laboratory friction experiments measuring the frictional behavior of the input sediments offshore northern Sumatra, sampled during IODP Expedition 362. We performed laboratory friction experiments on eight different samples from the targeted depth interval in a GIESA RS5 single-direct shear device at room temperature, in-situ effective normal stresses, and under saturation with simulated seawater. The results show that the North Sumatra subduction zone input sediments which have been correlated with the protodécollement horizon are frictionally unstable, and also frictionally weak. Our results provide an explanation for shallow earthquake slip at Sumatra.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.966244
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.966244
Provenance
Creator Stanislowski, Katja ORCID logo; Ikari, Matt J (ORCID: 0000-0002-8164-411X)
Publisher PANGAEA
Publication Year 2024
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
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 Bundled Publication of Datasets; Collection
Format application/zip
Size 7 datasets
Discipline Earth System Research
Spatial Coverage (91.606 LON, 3.034 LAT)