Mantle Convection
The earth dynamic system: the earth rotation vs mantle convection
... the mantle convection, relating to the earth heat and gravity, and the earth rota- ...The mantle convection is the power source of the plate break and movement, while the earth rotation re- ...
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A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
... Abstract. A method for incorporating multi-resolution capa- bilities within pre-existing global 3-D spherical mantle con- vection codes is presented. The method, which we term “ge- ometric multigrid refinement”, ...
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Influence of the Ringwoodite-Perovskite transition on mantle convection in spherical geometry as a function of Clapeyron slope and Rayleigh number
... the mantle operated in a layered convection ...the mantle evolved from a lay- ered/transitional regime to a dominantly whole mantle con- vection ...episodic mantle convection in ...
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Piazzoni, Antonio Sebastiano (2007): Coupling thermodynamic mineralogical models and mantle convection. Dissertation, LMU München: Fakultät für Geowissenschaften
... the mantle and reasonable mantle ...Earth’s mantle. By using this new thermodynamic database for the mantle I have coupled the resulting density dynamically (through the buoyancy term) with ...
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Influence of two major phase transitions on mantle convection with moving and subducting plates
... lower mantle is the stabilization of up- welling plumes in the lower mantle, and the impingement of these plumes at the 660 km phase boundary causes the development of secondary upwelling plumes to rise ...
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Multi Scale Dynamics and Rheology of Mantle Convection with Plates
... Simulation of the energy transport of mantle convection (A.3) often reveals the creation and disappearance of localized features, and a motion of plumes and other structures through space. Thus, the mesh ...
202
Mantle Convection and Plate Tectonics: A Primary Cause for Earthquakes
... After the earthquake of 1906 in California, USA, scientist Harry Fielding Reid, geologist at John Hopkins University, USA gave a successful explanation as to how energy get released during an earthquake based on Elastic ...
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Bauer, Simon (2019): New approaches for efficient on-the-fly FE operator assembly in a high-performance mantle convection framework. Dissertation, LMU München: Fakultät für Geowissenschaften
... While TerraNeo is still in its development phase, its concepts are based on the Hierarchical Hybrid Grids (HHG) software framework [16, 20, 85, 86] for low order finite elements. A flexible extension of the HHG concept ...
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Mantle Convection Pattern Under India: Relevance to Lonar Crater, Girnar Node and Peri-Indian Volcanism
... The lag at Lonar for com- paratively a very short time should direct us to a study of the relation of other known recent impact sites and mantle convection rat[r] ...
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Convective mixing in the earth's mantle
... deeper mantle [Davies, 1977; Hager and O'Connell, 1979], whereas, the viscosity of the - 1 0 0 km thick, low viscosity zone is only between 10 and 100 times lower than the deeper viscosity [Cathles, ...of ...
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Electronic absorption spectra of mantle minerals
... the mantle. At present, studies o f mantle convection patterns rely on the assumption that because o f the apparent opacity o f such minerals as oUvine and ferropericlase at pressure, then radiative ...
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Extremely long transition phase of thermal convection in the mantle of massive super Earths
... thermal convection in the compressible solid mantle of ...transient convection in the cooling mantle of a super-Earth that is ten times larger in size than the ...shallow mantle that ...
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Review of Convection and Magnetohydrodynamic Mixed Convection Heat Transfer Enhancement
... [30] Selimefendigil, F., & Öztop, H. F. (2014). Numerical study of MHD mixed convection in a nanofluid filled lid driven square enclosure with a rotating cylinder. International Journal of Heat and Mass ...
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Hydrogen isotope geochemistry of the mantle: constraints from back arc basin basalts and mantle xenoliths
... from mantle xenoliths (Peslier and Luhr 2006), and using diffusion coefficients for all minerals at 900° c, same size grains of clinopyroxene would retain 80 % of hydrogen and orthopyroxene would retain 60 % of ...
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The chemical case for Mercury mantle stripping
... the MESSENGER mission (Nittler et al. 2011; Zolotov et al. 2013; Weider et al. 2014) indicate high concentra- tions of sulfur (1–6 wt%) and low concentrations of FeO (< 1.9 wt%). From a planetological perspective, ...
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Hydrous origin of the continental cratonic mantle
... If our model is correct, the Earth’s mantle can be regarded as having spatial heterogeneity in water content at an early stage of the Earth’s history. When comparing with the garnet peridotites in the Kaapvaal ...
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Diamonds and the Mantle Geodynamics of Carbon
... by mantle metasomatism, 82 S isotopic systematics provides a unique way to assess the contribution of Archean sur fi cial reservoirs in mantle rocks. 83 Sulfur is present in all of the external envelopes of ...
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The strength of gravitational core-mantle coupling
... and mantle has been proposed as an explanation for a 6 year variation in the length-of-day (ΔLOD) signal and plays a key role in the possible superrotation of the inner ...the mantle. We estimate Γ from a ...
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Convection in Common Envelopes
... modified adiabatic gradient which accounts for pressure from turbulence of the medium. Yet another, more computationally expensive, method is the Full Spectrum of Turbulence (FST) convective model which uses up to ...
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Ventilatory Currents in the Mantle of Cephalopods
... Experiments with an alternative exhalantflow If oxygen extraction is complete by the time the respiratory stream reaches the post-branchial space, oxygen uptake should be unimpaired if t[r] ...
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