On Tuesday, October 16th, Colloquium Speaker Diana Roman, Volcanologist and Staff Scientist with the Carnegie Institution for Science, presents “ Stealth Magma Ascent: Implications for Volcanic Conduit Formation and Eruption Forecasting” at 4 PM in 022 Deike. A Speaker’s Coffee & Cookies Reception will precede the talk at 3:45 PM in the EMS Museum on the ground floor of Deike. All are welcome. More About Diana Roman Staff ScientistDepartment of Terrestrial MagnetismCarnegie Institution for Science of Washington EducationPh.D., Geological Sciences, University of OregonM.S., Geological Sciences, University of OregonB.S., Applied Economics, Cornell University Research InterestsRoman’s research straddles the boundary between volcanology and seismology with a dual focus on understanding the nature of magma ascent and eruption and of volcanic microearthquake swarms. Specifically, she is interested in the mechanics of how magma moves through the Earth’s crust and in the structure, evolution, and dynamics of volcanic conduit systems. Her ultimate goal is to understand the likelihood and timing of volcanic eruptions through the development of conceptual and numerical models of the interaction of tectonic and volcanic processes. A major result of her work has been the recognition through detailed analysis of precursory VT swarms and split S-wave polarizations that changes in the orientation of local maximum compression precede many eruptions by weeks to months and that these changes are caused the dilation of the volcanic conduit system during magma influx. Roman has also demonstrated that identification of local stress field reorientations may be used to assess the intermediate-term likelihood of impending eruptive activity. Prior to joining Carnegie Institution, Roman was an assistant professor in the Department of Geology at the University of South Florida, a NERC Postdoctoral Fellow at the University of Leeds (United Kingdom), a physical science technician at the USGS (Alaska Volcano Observatory), and a financial analyst with Barclays Global Investors, N.A.
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