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9 - Crystal Entrainment and Transport

Published online by Cambridge University Press:  17 February 2023

Bruce Marsh
Affiliation:
Johns Hopkins University
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Summary

The behavior of fluids laced or heavily laden with particles is presented in theory and experiment using molten wax and water in a 2.5 m tall mush column. The idea is to simulate the patterns of crystal concentrations found in the Basement Sill. And, on a grander scale, to build an experimental system mimicking the operation of the full Dry Valleys magmatic system during its time of operation. In flow in a pipe, as the concentration of particles increases the vertical distribution becomes increasingly parabolic, reflecting the fluid flow velocity, even without solidification. With on-going solidification particles are trapped or frozen in place, such that if the flow starts and stops, a specific pattern of particles will be frozen into the final fluid. Patterns like this are found in the Basement Sill. Molten wax experiments simulating dikes propagating into viscoelastic crust, represented as gelatin, exhibit particle transport just as expected with high concentrations in the center and undergoing sedimentation as the dike flattens and becomes a sill. The large mush column experiments between interconnected tanks (sills) with water as ‘magma’ laden with particles, demonstrate the many ways in which layering forms through the completion between the conduits at each level.

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Publisher: Cambridge University Press
Print publication year: 2023

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  • Crystal Entrainment and Transport
  • Bruce Marsh, Johns Hopkins University
  • Book: Magmatism in the McMurdo Dry Valleys, Antarctica
  • Online publication: 17 February 2023
  • Chapter DOI: https://doi.org/10.1017/9781009177078.010
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  • Crystal Entrainment and Transport
  • Bruce Marsh, Johns Hopkins University
  • Book: Magmatism in the McMurdo Dry Valleys, Antarctica
  • Online publication: 17 February 2023
  • Chapter DOI: https://doi.org/10.1017/9781009177078.010
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Crystal Entrainment and Transport
  • Bruce Marsh, Johns Hopkins University
  • Book: Magmatism in the McMurdo Dry Valleys, Antarctica
  • Online publication: 17 February 2023
  • Chapter DOI: https://doi.org/10.1017/9781009177078.010
Available formats
×