The existence, spatial distribution, and style of volcanism on terrestrial planets is an
expression of their internal dynamics and evolution. On Earth a physical link has been …

The core–mantle boundary (CMB)–the interface between the silicate mantle and liquid iron
alloy outer core–is the most important boundary inside our planet, with processes occurring …

The largest accumulations of rhyolitic melt in the upper crust occur in voluminous silicic
crystal mushes, which sometimes erupt as unzoned, crystal-rich ignimbrites, but are most …

Mounting evidence indicates that the Earth's mantle is chemically heterogeneous. To
understand the forms that convection might take in such a mantle, I have conducted …

A major change in Earth's geodynamics occurred~ 3billionyears (Ga) ago, likely related to
the onset of modern and continuous plate tectonics. However, the question of how Earth …

We study the evolution of a melting front between the solid and liquid phases of a pure
incompressible material where fluid motions are driven by unstable temperature gradients …

Seismic and geochemical observations indicate a compositionally heterogeneous mantle in
the lower mantle, suggesting a layered mantle. The volume and composition of each layer …

Tracer methods are attractive for modeling compositional fields because they offer the
potential of zero numerical diffusion. Composition is typically taken to be proportional to the …

Abstract In the northwest Pacific Ocean, a sharp corner in the boundary between the Pacific
plate and the North American plate joins a subduction zone running along the southern half …

Hotspots include midplate features like Hawaii and on-axis features like Iceland. Mantle
plumes are a well-posed hypothesis for their formation. Starting plume heads provide an …