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Modelling Magma Movement: Unexpected Journeys in the Field and Lab

Offered By: Earth Sciences, University of Liverpool via YouTube

Tags

Volcanology Courses Fluid Dynamics Courses Reynolds Number Courses

Course Description

Overview

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Explore a comprehensive lecture on modelling magma movement, covering unexpected discoveries in field research and laboratory experiments. Delve into the Liverpool MAGMA Lab approach, examining scaled analogue experiments, dyke geometry, and surface deformation. Learn about advanced techniques like the Medusa LaVision Laser System and Particle Image Velocimetry (PIV) for analyzing dyke flow velocity. Investigate the scaling of experiments using Reynolds numbers and explore the complexities of magma as a multiphase fluid, including the effects of crystal proportion, shape, and bubbles. Examine the modelling of complex magma rheology and the unexpected findings regarding shear-thinning behavior in magma analogues. Discover how different flow regimes in dykes might be expressed in solidified magma and explore sill geometry, strain rates, and flow patterns. Conclude with a summary of key findings and insights into future research directions in the field of magma movement modelling.

Syllabus

Modelling magma movement: Unexpected journeys in the field and the lab
The Liverpool MAGMA Lab approach
Unexpected journey in the field..
Scaled analogue experiments
Dyke Geometry & surface deformation
Medusa - LaVision Laser System
Simple magma Analogue materials
Particle image velocimetry (PIV)
Dyke Flow velocity from PIV analysis
Silicon oil Dyke - 3 rpm
Scaling - Reynolds number (Re)
Scaling Results - Reynolds number
Unexpected journey in the Lab.. Newtonian fluid dyke at different Re
Newtonian fluid dykes - Flow regimes
Magma: A multiphase fluid
Crystal proportion and crystal shape
What about bubbly magma?
Modelling complex magma rheology
Another unexpected journey in the Lab... Magma analogues - were they shear thinning?
What about Reynolds number effects?
Drastically different flow regimes for dykes
How might flow regimes be expressed in solidified magma?
Sill geometry, strain rates and flow
Summary
Final thoughts and future directions


Taught by

Earth Sciences, University of Liverpool

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