The lower plate is the dominant agent in modern convergent margins characterized by
active subduction, as negatively buoyant oceanic lithosphere sinks into the asthenosphere …

Mantle seismic structure beneath the United States spanning from the active western plate
margin to the passive eastern margin was imaged with teleseismic P and S wave traveltime …

The lithosphere–asthenosphere boundary (LAB) is a first-order structural discontinuity that
accommodates differential motion between tectonic plates and the underlying mantle …

The deployment of USArray during the last decade has produced dense sampling of the
central part of the North American continent with broadband seismic data. Regional …

Volcanic and intrusive rocks with geochemical signatures typical of modern continental or
oceanic arcs are uncommon in the Archaean and the archetypal Archaean granite …

Modern-style plate tectonics are mostly driven by the excess density of oceanic lithosphere
sinking deeply in subduction zones and can be sustained as long as melt is produced at mid …

We investigate S velocity variation in the upper mantle beneath North American to better
understand the effects of data heterogeneity, model parameterization, and regularization. To …

The cratonic lithosphere–asthenosphere boundary is commonly invoked as the site of
sheared peridotite and megacryst formation, a well-recognized petrological assemblage …

The EarthScope TA deployment has provided dense array coverage throughout the
continental US and with it, the opportunity for high resolution 3D seismic velocity imaging of …

Juxtaposed terranes of highly varied tectonic history make up the contiguous US: the
tectonically active western US, the largely quiescent Archean and Proterozoic cratons of the …