Chapter 8 begins with a discussion of plate tectonics. Then the study of convection in the Earth’s mantle is introduced by the consideration of Rayleigh–Bénard convection with constant viscosity. Linear and nonlinear stability are discussed, and the formation of planforms, and then the boundary ...
c, The RMSE of the modelled vs observed polar motion series for different combinations of processes (B-SL: barystatic and sea-level; GIA-MC: GIA and mantle convection; CD: core dynamics; and EQ seismic). The red dashed line indicates the mean error of the observed polar motion. The ...
Models can be either relatively simple parameterized convection calculations (e.g., Nimmo et al., 2004) or more sophisticated (but two-dimensional) approaches in which the full fluid-dynamic equations are solved (e.g., Nakagawa and Tackley, 2010). These models illustrate the important point ...
AI generated definition based on:Earth-Science Reviews,2015 Discover other topics Chapters and Articles You might find these chapters and articles relevant to this topic. Chapter Energetics of the Solid Earth: Implications for the Structure of Mantle Convection ...
1971. Convection plumes in the lower mantle. Nature 230, 42–43. (Open in a new window)Web of Science ®(Open in a new window)Google Scholar Morgan W. J. & Phipps Morgan J. 2007. Plate velocities in the hotspot reference frame. In: Foulger G. R. & Jurdy D. M. eds. Plates...
Mantle convection drives plate tectonics, redistributes heat, cycles chemical species, and generates dynamic topography at the Earth’s surface. Constraining spatio-temporal changes in the thermochemical structure of the mantle will help to refine our understanding of these interlinked phenomena. This signi...
(\tau _M\), similar to the definition adopted in the simple Burgers material (SBM) model (e.g., Caron et al.2017). EBM rheology has two additional time constants,\(\tau _L\)and\(\tau _H\), that bound the time frame over which the continuous distribution of Kelvin (or Voigt) ...
mantle convectiongeodynamicsocean island basaltsgeochemistryIn order to link the geochemical signature of hot spot basalts to Earth's deep interior, it is first necessary to understand how plumes sample different regions of the mantle. Here, we investigate the relative amounts of deep and shallow ...
Mantle Convection and Plumes III.FLayering and Storage An important property ofmantle convectionis the ability to reduce chemical heterogeneity by mixing. The chemical homogeneity of the mantle is a competition between the mixing capacity of mantle convection, the rate of production of chemical heteroge...
Mantle Convection and Plumes III.G.2 Upwellings There is direct surface evidence for two forms of mantle upwelling: flows associated with divergent plate margins, the oceanic spreading centers, and localized upwellings beneath volcanic hotspots, called mantle plumes. Mantle plumes appear to be somewhat...