2026-07-29T08:55:42Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:77562026-06-10T10:24:11ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.4.1.2023.005 Kosari, Ehsan Ehsan Kosari 0000-0002-1052-4997 GFZ German Research Centre for Geosciences, Potsdam, Germany Rosenau, Matthias Matthias Rosenau 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany Metzger, Sabrina Sabrina Metzger 0000-0002-0803-6599 GFZ German Research Centre for Geosciences, Potsdam, Germany Oncken, Onno Onno Oncken 0000-0002-2894-480X GFZ German Research Centre for Geosciences, Potsdam, Germany GFZ Data Services 2023 Seismotectonic modeling Analog Modeling Digital Image Correlation (DIC) Particle Image Velocimetry (PIV) EPOS multi-scale laboratories analogue models of geologic processes analogue modelling results EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > TECTONIC PROCESSES EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > TECTONIC PROCESSES > SUBDUCTION EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > TECTONIC PROCESSES > TECTONIC UPLIFT EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES Kosari, Ehsan Ehsan Kosari 0000-0002-1052-4997 GFZ German Research Centre for Geosciences, Potsdam, Germany HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ German Research Centre for Geosciences, Germany) 9ba34c109b827b177aab36e0266b1643 GFZ German Research Centre for Geosciences, Potsdam, Germany Kosari, Ehsan GFZ German Research Centre for Geosciences, Potsdam, Germany Rosenau, Matthias GFZ German Research Centre for Geosciences, Potsdam, Germany Dataset 10.1130/G51115.1 10.1016/j.jsg.2004.08.008 10.1029/2020GL088266 10.1029/2021TC007099 10.5194/se-8-597-2017 10.1029/2018JB016597 CC BY 4.0 This data set is digital image correlation data, including surface displacement and strain data from laboratory subduction megathrust earthquake cycles. The data consists of grids of surface strain (elastic and permanent), trench-normal surface displacement, vorticity and divergence maps over analog seismic cycles, and time series of surface displacement. The data have been derived using a stereo camera setup and processed with LaVision Davis 10 software. Detailed descriptions of the experiments and results regarding the surface pattern of the strain can be found in Kosari et al. (2023), to which this data set is supplementary.

We use three configurations to mimic the along-strike heterogeneous spatiotemporal distribution of frictional locking (Rosenau et al., 2019; Kosari et al., 2022b). A central patch separates two stick-slip zones as an aseismic barrier in all configurations. The frictional properties of the central patch vary as a velocity-strengthening (VS configuration), a velocity-neutral (VN), and a velocity-weakening (VW configuration). The VW zone generates smaller slip events with a higher frequency (i.e., recurrence interval) than the stick-slip zones. Four frictionally different materials have been emplaced on the interface: The sticky-rice as velocity-weakening material (a-b<0) resulting in stick-slip cycles simulating earthquake cycles, fine-grained sugar and rubber-sand mixture as velocity-strengthening (a-b>0) and velocity-neutral (a-b=0) material, and fine-grained salt as velocity-weakening material (a-b<0) (Kosari et al., 2023).