The lithosphere-asthenosphere boundary is the world’s most ubiquitous plate boundary system, separating the high viscosity lithosphere from the underlying convecting mantle asthenosphere. Thoroughly characterizing the …
Volcanic hazards monitoring relies heavily on constraints offered by geophysical inversions to decipher the structure of subvolcanic magmatic systems. Over the past decades a multidisciplinary …
The lithosphere, the plate in ‘plate tectonics’, preserves a record of past and present tectonic processes in its internal structures and its boundary with the …
Because of the different characteristics of seismic velocity and density sensitivity kernels for Rayleigh wave amplification and phase velocity, combining observations of surface-wave amplification with …
The concepts of rigid lithosphere and weak asthenosphere are fundamental to the theory of plate tectonics, yet the physical properties of the mantle that give …
This PhD thesis presents a comprehensive exploration of Earth’s upper mantle from global and regional perspectives, with a particular emphasis on the stable cores of …
Earthquakes over the last century near Managua, Nicaragua's capital city, have killed thousands, injured tens of thousands, and destroyed countless buildings. Nicaragua sits on a …
The main question posed in this project was concerned with the direction of mantle flow beneath Iceland. The secondary question that we investigated concerned variations …
The main question posed in this project was concerned with the direction of mantle flow beneath Iceland. The secondary question that we investigated concerned variations …
Plate tectonics, which is responsible for most seismicity, volcanism, and mountain building at Earth's surface, is expressed most simply in oceanic plates. Understanding how the …
The lithosphere-asthenosphere system is one of the most fundamental components of the Earth, as it sustains the existence of plate tectonics and shapes the surface …
The tectonic processes that characterize Alaska and the surrounding region remain relatively unstudied. Large-scale features of interest (Figure 1) include the Queen Charlotte-Fairweather fault system …
Much of what is known about Earth’s oceanic upper mantle comes from global seismic models or seismic studies of the Pacific. A comprehensive understanding of …
To image Earth structure and dynamics, seismologists employ measurements of the frequency-dependent propagation speeds of surface waves generated by earthquakes, which provide unique and critical …
