A database of R-R-R triple junction analogue and numerical models

Cite as:

Maestrelli, Daniele; Risaliti, Giacomo; Brune, Sascha; Corti, Giacomo; Keir, Derek; Sani, Federico (2022): A database of R-R-R triple junction analogue and numerical models. GFZ Data Services. https://doi.org/10.5880/fidgeo.2022.027

Status

I N R E V I E W : Maestrelli, Daniele; Risaliti, Giacomo; Brune, Sascha; Corti, Giacomo; Keir, Derek; Sani, Federico (2022): A database of R-R-R triple junction analogue and numerical models. GFZ Data Services. https://doi.org/10.5880/fidgeo.2022.027

Abstract

This dataset presents the raw data from two experimental series of analogue models and four numerical models performed to investigate Rift-Rift-Rift triple junction dynamics, supporting the modelling results described in the submitted paper. Numerical models were run in order to support the outcomes obtained from the analogue models. Our experimental series tested the case of a totally symmetric RRR junction (with rift branch angles trending at 120° and direction of stretching similarly trending at 120°; SY Series) or a less symmetric triple junction (with rift branches trending at 120° but with one of these experiencing orthogonal extension; OR Series), and testing the role of a single or two phases of extension coupled with effect of differential velocities between the three moving plates. An overview of the performed analogue and numerical models is provided in Table 1. Analogue models have been analysed quantitatively by means of photogrammetric reconstruction of Digital Elevation Model (DEM) used for 3D quantification of the deformation, and top-view photo analysis for qualitative descriptions. The analogue materials used in the setup of these models are described in Montanari et al. (2017), Del Ventisette et al. (2019) and Maestrelli et al. (2020). Numerical models were run with the finite element software ASPECT (e.g., Kronbichler et al., 2012; Heister et al., 2017; Rose et al., 2017).

Authors

Maestrelli, Daniele;CNR-IGG, Consiglio Nazionale delle Ricerche, Istituto di Geoscienze e Georisorse, Firenze, Italy
Risaliti, Giacomo;Dipartimento di Scienze della Terra, Università di Firenze, Firenze, Italy
Brune, Sascha;GFZ German Research Centre for Geosciences, Potsdam, Germany;Institute of Earth and Environmental Sciences, University of Potsdam, Potsdam, Germany
Corti, Giacomo;CNR-IGG, Consiglio Nazionale delle Ricerche, Istituto di Geoscienze e Georisorse, Firenze, Italy
Keir, Derek;Dipartimento di Scienze della Terra, Università di Firenze, Firenze, Italy;School of Ocean and Earth Science, University of Southampton, Southampton, United Kingdom
Sani, Federico;CNR-IGG, Consiglio Nazionale delle Ricerche, Istituto di Geoscienze e Georisorse, Firenze, Italy;Dipartimento di Scienze della Terra, Università di Firenze, Firenze, Italy

Contact

Maestrelli, Daniele; The National Research Council of Italy (IGG-CNR);

Contributors

Tectonics Modelling Laboratory (IGG-CNR, Italy); HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ German Research Centre for Geosciences, Germany)

Keywords

tectonics, solid Earth, triple junctions, analogue modelling, physical modelling, numerical modelling, Digital Elevation Models, photogrammetry, faults, faulting, stress, strain, Red Sea, Gulf of Aden, Main Ethiopian Rift, Afar, EPOS, multi-scale laboratories, analogue models of geologic processes, property data of analogue modelling materials, analogue modelling results, software tools, compound material > igneous material, compound material > rock, compound material > sedimentary material, experiment, experiment > laboratory experiment, experiment > simulation > modelling, experiment > simulation > modelling > model, geological process, geological process > seismic activity > earthquake, monitoring, monitoring > monitoring technique, monitoring > monitoring technique > photogrammetry, parameter > pixel, parameter > raster, parameter > resolution (parameter), research, research > research project, research > scientific research, science, science > natural science, science > natural science > earth science > geology, science > natural science > earth science > geology > tectonics, science > natural science > earth science > geophysics, Phanerozoic