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Andrew Newman
Summary Sentence: A seminar by Dr. Samer Naif, School of Earth and Atmospheric Sciences
Full Summary: No summary paragraph submitted.
Samer NaifImaging Fluid-Tectonic Processes at a Plate Boundary with Electromagnetic Data
Fluids are inextricably linked to a wide range of tectonic processes, particularly at plate boundaries. Yet there are outstanding fundamental questions regarding, for example, the role that fluids play in modulating seismicity at subduction zones and controlling the rheology of the upper mantle.
In this presentation, I will briefly review the utility of electromagnetic (EM) methods for understanding the structure and dynamics of the solid Earth.
Then, I will summarize results from a marine EM survey at the Middle America Trench where the data uniquely constrain the porosity structure of the oceanic crust and megathrust plate interface. Ongoing work to integrate EM with seismic, geochemical, and remote sensing data from this region demonstrate the capacity to make significant advancements, such as the discovery of intrusive petit-spot volcanism fed by a partial melt channel beneath the Cocos plate.
I will conclude with future research plans and highlight a recently completed marine EM survey at the Hikurangi subduction zone offshore New Zealand.
