Plates, Plumes, and Planetary Processes

2007 this volume America Special Paper Anderson APWP asthenosphere Baksi basin beneath blobs Boulder boundary buoyancy calculations chemical Colorado composition Cretaceous crustal Deccan delamination density depleted depth Earth and Planetary East Pacific Rise eclogite eruption Figure Fitton flood basalts Foulger fracture zone geochemical geochemistry geoid Geological Society global Hawaii Hawaiian heat heatflow heterogeneity hotspot Iceland island isotopic Journal of Geophysical Jurdy large igneous provinces layer lithosphere lower mantle magma mantle plumes margin melting anomalies mid-ocean ridge MORB N-MORB Natland observed oceanic crust olivine Pacific plate paleomagnetic partial melting peridotite Petrology phase Phipps Morgan picrites planetary processes Planetary Science Planetary Science Letters plate motion plate tectonics plateau region rhyolite rift rocks samples seafloor seismic shallow slab Society of America Special Paper 388 Special Paper 430 structure subduction swell temperature thickness tholeiite tion upper mantle upwelling velocity viscosity volcanism