Tectonic Layering of the Lithosphere

The lithosphere–asthenosphere boundary and the tectonic and magmatic history of the northwestern United States

The lithosphere–asthenosphere boundary and the tectonic and magmatic history of the northwestern United States a r t i c l e i n f o a b s t r a c t Keywords: scattered waves lithosphere lithosphere–asthenosphere boundary mid-lithospheric discontinuity This study explores the properties of the lithosphere–asthenosphere boundary (LAB) and other shallow mantle discontinuities across the diverse g...

Osmium Isotope Constraints on Tectonic Evolution of the Lithosphere in the Southwestern United States

The Re-Os isotope system is increasingly providing new insight into continental dynamics due to the fact that it is the only radiogenic isotope system that provides information on melt depletion events (hence lithosphere formation) in the uppermost mantle. Here we review application of the ReOs isotopic system to dating melt depletion in peridotites. In particular, we highlight examples of how ...

The lithosphere–asthenosphere boundary and cratonic lithospheric layering beneath Australia from Sp wave imaging

Numerical modelling of magma dynamics coupled to tectonic deformation of lithosphere and crust

S U M M A R Y Many unresolved questions in geodynamics revolve around the physical behaviour of the two-phase system of a silicate melt percolating through and interacting with a tectonically deforming host rock. Well-accepted equations exist to describe the physics of such systems and several previous studies have successfully implemented various forms of these equations in numerical models. T...

Generation of tectonic over-pressure inside subducting oceanic lithosphere involving phase-loop of olivine–wadsleyite transition

a School of Earth, Atmosphere and Environment, Monash University, Clayton, 3800 Victoria, Australia b Research Institute of Natural Sciences, Chungnam National University, Daejeon 305-764, South Korea c Minnesota Supercomputing Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA d Department of Earth Sciences, University of Minnesota, Twin Cities, Minneapolis, MN 55455, ...