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Ikari, Matt J; Fagereng, Ake: Friction and Microstructure of the Papaku Fault, Hikurangi [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.960148 (dataset in review)

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Abstract:
This study focuses on the Pāpaku fault, a major splay fault in the Hikurangi prism which shows evidence of both brittle and ductile in-situ deformation. The Hikurangi subduction zone, located off the eastern coast of New Zealand's North Island, is known for regularly repeating slow slip events which occur at very shallow depths, possibly reaching the seafloor. We performed laboratory friction experiments on 8 intact core samples spanning the Pāpaku fault from 237-450 mbsf, recovered during IODP Expedition 375. The experiments were conducted at in-situ effective normal stress and driving velocities as low as the plate convergence rate of 5 cm/yr. Following the shearing experiments, the samples were analyzed for microstructure with scanning electron microscopy.
Keyword(s):
experiment; fault; friction; Hikurangi; Papaku; subduction zone
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Funding:
European Research Council (ERC), grant/award no. 714430: Plate-rate experimental deformation: Aseismic, transient or seismic fault slip
Coverage:
Latitude: -38.859490 * Longitude: 178.896032
Date/Time Start: 2018-03-16T00:00:00 * Date/Time End: 2018-03-16T00:00:00
Event(s):
375-U1518F * Latitude: -38.859490 * Longitude: 178.896032 * Date/Time: 2018-03-16T00:00:00 * Elevation: -2626.1 m * Campaign: Exp375 * Basis: Joides Resolution * Method/Device: Core drilling (CDRILL)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
6 datasets

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Datasets listed in this bundled publication

  1. Ikari, MJ; Fagereng, A (in review): Experiment details from core samples of IODP Site 375-U1518F (Table 1). https://doi.pangaea.de/10.1594/PANGAEA.965417
  2. Ikari, MJ; Fagereng, A (in review): Coefficient of friction measurements from core samples of IODP Hole 375-U1518F (Table 2). https://doi.pangaea.de/10.1594/PANGAEA.965418
  3. Ikari, MJ; Fagereng, A (in review): Velocity-dependent friction measurements, input parameters for forward modeling from core samples of IODP Hole 375-U1518F (Table 3). https://doi.pangaea.de/10.1594/PANGAEA.965423
  4. Ikari, MJ; Fagereng, A (in review): Velocity-dependent friction measurements, inverse modeling results (aging law) from core samples of IODP Hole 375-U1518F (Table 4). https://doi.pangaea.de/10.1594/PANGAEA.965426
  5. Ikari, MJ; Fagereng, A (in review): Velocity-dependent friction measurements, inverse modeling results (slip law) from core samples of IODP Hole 375-U1518F (Table 5). https://doi.pangaea.de/10.1594/PANGAEA.965431
  6. Ikari, MJ; Fagereng, A (in review): Microstructural details from core samples of IODP Hole 375-U1518F (Table 6). https://doi.pangaea.de/10.1594/PANGAEA.965432