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TimeMan SIGNED

RHEOLOGY OF EARTH MATERIALS: CLOSING THE GAP BETWEEN TIMESCALES IN THE LABORATORY AND IN THE MANTLE

Total Cost €

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EC-Contrib. €

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Partnership

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Project "TimeMan" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITE DE LILLE 

Organization address
address: 42 RUE PAUL DUEZ
city: LILLE
postcode: 59800
website: n.a.

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]
 Total cost 2˙499˙400 €
 EC max contribution 2˙499˙400 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-ADG
 Funding Scheme ERC-ADG
 Starting year 2019
 Duration (year-month-day) from 2019-03-01   to  2024-02-29

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITE DE LILLE FR (LILLE) coordinator 1˙784˙400.00
2    UNIVERSITEIT ANTWERPEN BE (ANTWERPEN) participant 515˙000.00
3    UNIVERSITE CATHOLIQUE DE LOUVAIN BE (LOUVAIN LA NEUVE) participant 200˙000.00

Map

 Project objective

Most large-scale geological process such as plate tectonics or mantle convection involve plastic deformation of rocks. With most recent developments, constraining their rheological properties at natural strain-rates is something we can really achieve in the decade to come. Presently, these theological properties are described with empirical equations which are fitted on macroscopic, average properties, obtained in laboratory experiments performed at human timescales. Their extrapolation to Earth’s conditions over several orders of magnitude is highly questionable as demonstrated by recent comparison with surface geophysical observables. Strain rates couple space and time. We cannot expand time, but we can now reduce length scales. By using the new generation of nanomechanical testing machines in transmission electron microscopes, we can have access to elementary deformation mechanisms and, more importantly, we can measure the key physical parameters which control their dynamics. At this scale, we can have access to very slow mechanisms which were previously out of reach. This approach can be complemented by numerical modelling. By using the recent developments in modelling the so-called “rare events”, we will be able to model mechanisms in the same timescales as nanomechanical testing. By combining, nanomechanical testing and advanced numerical modelling of elementary processes I propose to elaborate a new generation of rheological laws, based on the physics of deformation, which will explicitly involve time (i.e. strain rate) and will require no extrapolation to be applied to natural processes. Applied to olivine, the main constituent of the upper mantle, this will provide the first robust, physics-based rheological laws for the lithospheric and asthenospheric mantle to be compared with surface observables and incorporated in geophysical convection models.

 Publications

year authors and title journal last update
List of publications.
2019 A. Addad, P. Carrez, P. Cordier, D. Jacob, S.‐I. Karato, A. Mohiuddin, A. Mussi, B. C. Nzogang, P. Roussel, A. Tommasi
Anhydrous Phase B: Transmission Electron Microscope Characterization and Elastic Properties
published pages: , ISSN: 1525-2027, DOI: 10.1029/2019gc008429
Geochemistry, Geophysics, Geosystems 2019-08-30

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The information about "TIMEMAN" are provided by the European Opendata Portal: CORDIS opendata.

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