Search results for "Chondrite reference model"

showing 1 items of 1 documents

Aluminium distribution in an Earth's non–primitive lower mantle

2020

The aluminium incorporation mechanism of perovskite was explored by means of quantum mechanics in combination with equilibrium/off-equilibrium thermodynamics under the pressure-temperature conditions of the Earth's lower mantle (from 24 to 80 GPa). Earth's lower mantle was modelled as a geochemically non-primitive object because of an enrichment by 3 wt% of recycled crustal material (MORB component). The compositional modelling takes into account both chondrite and pyrolite reference models. The capacity of perovskite to host Al was modelled through an Al2O3 exchange process in an unconstrained Mg-perovskite + Mg-Al-perovskite + free-Al2O3(corundum) system. Aluminium is globally incorporate…

Materials science010504 meteorology & atmospheric sciencesSocio-culturaleThermodynamicschemistry.chemical_elementCorundumengineering.materialAluminium bearing perovskite010502 geochemistry & geophysicsMole fraction01 natural sciencesPE10_11Aluminium distribution Earth’s lower mantle; aluminium bearing perovskite; pyrolite chondrite reference model; MORB component; enriched lower mantle composition; open system.Aluminium distributionPressure rangeGeochemistry and PetrologyChondriteAluminiumAluminium bearing perovskite; Aluminium distribution; Chondrite reference model; Earth's lower mantle; Enriched lower mantle composition; MORB component; Open system; PyroliteEnriched lower mantle compositionEarth’s lower mantleChemical composition0105 earth and related environmental sciencesEarth's lower mantleDrop (liquid)PyroliteMORB componentchemistryChondrite reference modelOpen systemPyroliteengineering
researchProduct