Seminar Announcement03/20/2018
Levich Institute Seminar Announcement, 02/27/2018
Tuesday, 03/20/2018
2:00 PM
Steinman Hall, Room #312
(Chemical Engineering Conference Room)

Dr. Julie Oppenheimer
Columbia University
Lamont-Doherty Earth Observatory

"Three-Phase Suspensions and Interfacial Dynamics in Volcanology"

ABSTRACT


Magmas are composed of crystals and bubbles suspended in a silicate melt. In order to study interactions between the different phases, I use analogue experiments wherein suspensions of glass beads in corn syrup interact with injected bubbles or liquids. Through 2D (ish) and 3D experiments, I show that particle-particle interactions affect the interface of the invading fluids, which impact the dynamics of magma mixing and gas migration in crystal-rich magmas. With a new 3D imaging technique (SCAPE Swept Confocally Aligned Planar Excitation microscopy), we are able to track particles at the interface, and observe particle transfers from the suspension into the invading liquid. I will discuss how the science of granular materials and suspensions can be used in volcanology, and showcase our advances with a new high-speed 3D imaging method.

BRIEF ACADEMIC/EMPLOYMENT HISTORY

  • Jan 2017: PhD in Geology, University of Bristol, UK
  • Mar. 2017 - Present: Postdoctoral Researcher at the Lamont-Doherty Earth Observatory, Columbia University

MOST RECENT RESEARCH INTERESTS

Bubble-Crystal-Melt interactions in magmas, and their effects on gas migration and eruption behavior. I am also working on testing a new imaging method using 3D laser microscopy (SCAPE microscope, Hillman Lab, Columbia University)

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