The Geosciences Dept. and Class of 1960 Scholor program present Dr. Maureen Long, Yale Univ., who will speak on “Seismic Imaging of the Crust and Upper Mantle Beneath New England: Past Tectonic Processes and Present-Day Dynamics.”
Dr. Long is an observational seismologist who works on problems related to mantle dynamics, with a focus on subduction zone processes, the structure and evolution of continental lithosphere, and the dynamics of the deep mantle. Her research group uses observations of seismic anisotropy in the Earth’s mantle to address major unsolved problems from the lithosphere to the core-mantle boundary. In particular, they work on the dynamics of subduction systems, using seismic observations and geodynamic models to understand subduction geodynamics, including volatile cycling, the generation and transport of melt, and slab morphology, rheology, and evolution. They also investigate seismic anisotropy in the deep mantle, including the transition zone, uppermost lower mantle, and the core-mantle boundary region. Finally, they are interested in the structure, evolution, and deformation of continental lithosphere, both in regions of present-day tectonic activity (such as Cascadia and western South America) and in regions that have been affected by subduction and continental breakup in the past (such as eastern North America). Her research encompasses a substantial field component, with recent and ongoing seismometer deployments in the Pacific Northwest, Peru, the Appalachian Mountains, offshore eastern North America, and New England.