HMC Physics Colloquium
Tuesdays at 16:30 in Shanahan Center for Teaching and Learning, Room B460
Wendy Panero (’97)
Ohio State University
Oct. 26, 2010
This talk presents new methods for measuring transport properties under the high-pressure, high-temperature conditions of the Earth’s core, combining synchrotron-based X-ray experiments at high pressure and temperature with post-run focused-ion beam milling and transmission electron microscopy. Combined with models for texture evolution in metals, the mechanism by which the inner core develops and maintains anisotropy appears to be a combination of preferential growth in equatorial regions combined with solid-state deformation in response to mass variations in the Earth’s mantle.