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IMPACT SIGNED

The giant impact and the Earth and Moon formation

Total Cost €

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EC-Contrib. €

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Partnership

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 IMPACT project word cloud

Explore the words cloud of the IMPACT project. It provides you a very rough idea of what is the project "IMPACT" about.

unconstrained    partitioning    ratio    calculations    models    proto    disk    feedback    plausible    reached    planetary    supercritical    vaporize    vaporization    little    green    density    predict    compositions    forming    points    functions    loop    regimes    hit    scenarios    position    species    combination    elemental    thermal    until    formed    critical    estimates    sub    convergence    simulations    condensation    geological    very    bodies    multiscale    rock    initio    generating    isotopic    evolution    atomic    theory    subsequent    moon    gap    liquid    coupled    equations    dynamics    speciation    vary    molecular    scales    temperature    positions    model    giant    analyze    observations    fluids    final    aggregates    governing    rocks    ing    couple    profile    time    physics    constrained    functional    gw    magnitude    impactor    melt    simulate    protolunar    employ    energy    bulk    bridge    ab    clusters    dependent    construct    diagrams    predictions    curves    experiments    dft    atomistic    hydrodynamic    compute    vapor    techniques    experimental    earth    minerals    thermodynamics   

Project "IMPACT" data sheet

The following table provides information about the project.

Coordinator
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS 

Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794
website: www.cnrs.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website http://moonimpact.eu/
 Total cost 1˙900˙000 €
 EC max contribution 1˙900˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-CoG
 Funding Scheme ERC-COG
 Starting year 2016
 Duration (year-month-day) from 2016-09-01   to  2021-08-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS FR (PARIS) coordinator 1˙900˙000.00

Map

 Project objective

Very little is understood of the physics governing the Giant Impact and the subsequent formation of the Moon. According to this model an impactor hit the proto-Earth; the resulting energy was enough to melt and partially vaporize the two bodies generating a large protolunar disk, from which the Earth-Moon couple formed. Hydrodynamic simulations of the impact and the subsequent evolution of the protolunar disk are currently based on models of equations of state and phase diagrams that are unconstrained by experiments or calculations. Estimates of the positions of critical points, when available at all, vary by one order of magnitude in both temperature and density. Here we propose to compute the thermodynamics of the major rock-forming minerals and rock aggregates, and use it to study the formation and evolution of the protolunar disk. For this we employ a unique combination of atomistic state-of-the-art ab initio simulations. We use large-scale density-functional theory (DFT) molecular dynamics to study bulk fluids, coupled with Green functions (GW) and time-dependent DFT techniques to analyze atomic clusters and molecular species. We compute the vaporization curves, position the supercritical points, and characterize the sub-critical and supercritical regimes. We construct equations of state of the rocks at the conditions of the giant impact that are beyond current experimental capabilities. We employ a multiscale approach to bridge the gap between atomic, geological sample, and planetary scales via thermodynamics; we simulate the thermal profile through the disk, the ratio between liquid and vapor, and the speciation. From speciation we predict elemental and isotopic partitioning during condensation. Plausible impact scenarios, features of the impactor and of the proto-Earth will be constrained with a feedback loop, until convergence between predictions of final Earth-Moon compositions and observations is reached.

 Publications

year authors and title journal last update
List of publications.
2017 Maxim D. Ballmer, Diogo L. Lourenço, Kei Hirose, Razvan Caracas, Ryuichi Nomura
Reconciling magma-ocean crystallization models with the present-day structure of the Earth\'s mantle
published pages: 2785-2806, ISSN: 1525-2027, DOI: 10.1002/2017GC006917
Geochemistry, Geophysics, Geosystems 18/7 2019-06-18
2017 Ana ÄŒernok, Katharina Marquardt, Razvan Caracas, Elena Bykova, Gerlinde Habler, Hanns-Peter Liermann, Michael Hanfland, Mohamed Mezouar, Ema Bobocioiu, Leonid Dubrovinsky
Compressional pathways of α-cristobalite, structure of cristobalite X-I, and towards the understanding of seifertite formation
published pages: 15647, ISSN: 2041-1723, DOI: 10.1038/ncomms15647
Nature Communications 8 2019-05-27
2019 RazvanCaracas, KeiHirose, RyuichiNomura, Maxim D.Ballmer,
Melt-crystal density crossover in a deep magma ocean
published pages: , ISSN: 0012-821X, DOI:
Earth and Planetary Science Letters 2019-05-27
2019 A. Martin, M. Torrent, R. Caracas
Projector augmented-wave formulation of response to strain and electric-field perturbation within density functional perturbation theory
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.99.094112
Physical Review B 99/9 2019-05-27
2018 J.-A. Hernandez, R. Caracas
Proton dynamics and the phase diagram of dense water ice
published pages: 214501, ISSN: 0021-9606, DOI: 10.1063/1.5028389
The Journal of Chemical Physics 148/21 2019-05-27
2018 P. Treviño, A. C. Garcia-Castro, S. López-Moreno, A. Bautista-Hernández, E. Bobocioiu, B. Reynard, R. Caracas, A. H. Romero
Anharmonic contribution to the stabilization of Mg(OH) 2 from first principles
published pages: 17799-17808, ISSN: 1463-9076, DOI: 10.1039/c8cp02490a
Physical Chemistry Chemical Physics 20/26 2019-03-18
2019 Natalia V. Solomatova, Razvan Caracas, Craig E. Manning
Carbon sequestration during core formation implied by complex carbon polymerization
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-019-08742-9
Nature Communications 10/1 2019-03-11
2017 Razvan Caracas, Wendy R. Panero
Hydrogen mobility in transition zone silicates
published pages: , ISSN: 2197-4284, DOI: 10.1186/s40645-017-0119-8
Progress in Earth and Planetary Science 4/1 2019-03-18

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