Levich Institute Seminar Announcement, 02/27/2018
Steinman Hall, Room #312
(Chemical Engineering Conference Room)
Dr. Julie Oppenheimer
Lamont-Doherty Earth Observatory
"Three-Phase Suspensions and Interfacial Dynamics in Volcanology"
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
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)