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Interactions between a flat slab and overriding plate: Controlling factors of subduction dynamics and continental deformation
DownloadFall 2022
Subduction zones are active plate margins that have an important role in mantle and lithosphere processes. Subduction is driven by the negative buoyancy of the downgoing oceanic plate, resulting in a steep descent angle at most subduction zones. However, in approximately 10% of modern subduction...
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Fall 2017
The central Andes (18° - 26°S) is an active Cordilleran orogen, formed through the subduction of the Nazca oceanic plate beneath the South American continent. Despite significant tectonic crustal shortening and thickening (60 -70 km), deep seismic imaging indicates a thin to absent mantle...
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Fall 2012
Convergent plate boundaries have played an important role in the growth and assembly of the modern continents. To obtain a better understanding of the tectonic processes in these boundaries, it is necessary to constrain the rheology of the crust and upper mantle in these regions. Magnetotelluric...
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Multiscale Investigation of the Earth's Internal Structure and Processes Using Seismic Arrays
DownloadFall 2022
The fast expansion of seismic arrays has improved our ability to understand the Earth's internal structure and dynamics at various spatial scales. This thesis applies both conventional and novel approaches to dense array recordings to address major questions in (1) earthquake location and source...