Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation
The dataset includes movies of 29 analogue experiments performed to investigate the effects on dike propagation by the following imposed parameters: density ratio between host-rock and magma analogues, rigidity layering and density layering of the host medium, flow rate and topography. The purpose o...
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2018
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_3268892 2023-05-15T16:52:43+02:00 Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation Urbani, S. Acocella, V. Rivalta, E. 2018 https://gfzpublic.gfz-potsdam.de/pubman/item/item_3268892 eng eng GFZ Data Services info:eu-repo/semantics/altIdentifier/doi/10.5880/fidgeo.2018.012 https://gfzpublic.gfz-potsdam.de/pubman/item/item_3268892 info:eu-repo/semantics/workingPaper 2018 ftgfzpotsdam https://doi.org/10.5880/fidgeo.2018.012 2022-09-14T05:53:55Z The dataset includes movies of 29 analogue experiments performed to investigate the effects on dike propagation by the following imposed parameters: density ratio between host-rock and magma analogues, rigidity layering and density layering of the host medium, flow rate and topography. The purpose of the experiments is to define a hierarchy of all the parameters considered, by varying systematically each of them, comparing semi-quantitatively the variations on dike geometry and velocity. Experimental setup The experimental set-up consists of a 33 × 58 × 38.5 cm3 Plexiglas box and a peristaltic pump that injects water (magma analogue) into pig-skin gelatin (crustal analogue) alternatively from the bottom (Set 1) and the side of the box (Set 2). The gelatin rheological properties are varied by mixing different concentrations of gelatin powder and NaCl. We refer to “rigidity layering” when the rigidity ratio (i.e. Young’s Modulus) between the upper and lower layer (Eu/El) is < or > 1, and to “density layering” when Eu/El ~ 1, but the two layers show different densities (i.e. the ratio between the density of the upper and lower layer, ρU/ρL). The experiments with topography are prepared by imposing a mold with gently inward dipping flanks (2.4° and 3.7°) on the opposite sides of the box separated by a 8 cm wide horizontal plain on the gelatin surface. This configuration simulates the 2-D along-strike topography of the 2014 Bardarbunga intrusion (Iceland) and allows investigating the role of two opposite slopes on dike propagation. The topography profile dips parallel to the long side of the Plexiglas box (x axis in Figure 1 of Urbani et al. 2018). The flow rate has been changed between 0.079 and 0.435 ml/s. For the details about the model set-up, experimental results and interpretation refer to Urbani et al. (2018). The time-lapse movies show the time evolution of the dike shape, in side and map view, of 29 out of 33 models presented in Urbani et al. (2018). It is recommended to open the films with the VLC ... Report Iceland GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Bardarbunga ENVELOPE(-17.528,-17.528,64.635,64.635) |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
The dataset includes movies of 29 analogue experiments performed to investigate the effects on dike propagation by the following imposed parameters: density ratio between host-rock and magma analogues, rigidity layering and density layering of the host medium, flow rate and topography. The purpose of the experiments is to define a hierarchy of all the parameters considered, by varying systematically each of them, comparing semi-quantitatively the variations on dike geometry and velocity. Experimental setup The experimental set-up consists of a 33 × 58 × 38.5 cm3 Plexiglas box and a peristaltic pump that injects water (magma analogue) into pig-skin gelatin (crustal analogue) alternatively from the bottom (Set 1) and the side of the box (Set 2). The gelatin rheological properties are varied by mixing different concentrations of gelatin powder and NaCl. We refer to “rigidity layering” when the rigidity ratio (i.e. Young’s Modulus) between the upper and lower layer (Eu/El) is < or > 1, and to “density layering” when Eu/El ~ 1, but the two layers show different densities (i.e. the ratio between the density of the upper and lower layer, ρU/ρL). The experiments with topography are prepared by imposing a mold with gently inward dipping flanks (2.4° and 3.7°) on the opposite sides of the box separated by a 8 cm wide horizontal plain on the gelatin surface. This configuration simulates the 2-D along-strike topography of the 2014 Bardarbunga intrusion (Iceland) and allows investigating the role of two opposite slopes on dike propagation. The topography profile dips parallel to the long side of the Plexiglas box (x axis in Figure 1 of Urbani et al. 2018). The flow rate has been changed between 0.079 and 0.435 ml/s. For the details about the model set-up, experimental results and interpretation refer to Urbani et al. (2018). The time-lapse movies show the time evolution of the dike shape, in side and map view, of 29 out of 33 models presented in Urbani et al. (2018). It is recommended to open the films with the VLC ... |
format |
Report |
author |
Urbani, S. Acocella, V. Rivalta, E. |
spellingShingle |
Urbani, S. Acocella, V. Rivalta, E. Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation |
author_facet |
Urbani, S. Acocella, V. Rivalta, E. |
author_sort |
Urbani, S. |
title |
Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation |
title_short |
Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation |
title_full |
Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation |
title_fullStr |
Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation |
title_full_unstemmed |
Supplementary Material for Analogue Experiments on Lateral versus Vertical Dike Propagation |
title_sort |
supplementary material for analogue experiments on lateral versus vertical dike propagation |
publisher |
GFZ Data Services |
publishDate |
2018 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_3268892 |
long_lat |
ENVELOPE(-17.528,-17.528,64.635,64.635) |
geographic |
Bardarbunga |
geographic_facet |
Bardarbunga |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5880/fidgeo.2018.012 https://gfzpublic.gfz-potsdam.de/pubman/item/item_3268892 |
op_doi |
https://doi.org/10.5880/fidgeo.2018.012 |
_version_ |
1766043088424271872 |