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DEEP TIME

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Dynamic Earth Evolution and Paleogeography through Tomographic Imaging of the Ma...

Dynamic Earth Evolution and Paleogeography through Tomographic Imaging of the Mantle DEEP TIME will unearth a record of geological time that is buried thousands of kilometres deep. The seafloor that covers two-thirds of the earth's surface is a tiny fraction of all seafloor created during its history – the rest ha... ver más

31/01/2022

CNRS

1M€

Presupuesto del proyecto: 1M€

Líder del proyecto

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2022-01-31

ERC-StG-2014: ERC Starting Grant Scope:Objectives

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Este proyecto no cuenta con búsquedas de partenariado abiertas en este momento.

Información adicional privada

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2 Participantes

CNRS

92.63K€ | Lider

UOXF

1.35M€ | Participante

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Duración del proyecto: 80 meses Fecha Inicio: 2015-05-22
Fecha Fin: 2022-01-31

Líder del proyecto

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 1M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto DEEP TIME will unearth a record of geological time that is buried thousands of kilometres deep. The seafloor that covers two-thirds of the earth's surface is a tiny fraction of all seafloor created during its history – the rest has sunk back into the viscous mantle. Slabs of subducted seafloor carry a record of surface history: how continents and oceans were configured over time and where their tectonic plate boundaries lay. DEEP TIME will follow former surface oceans as far back in time as the convecting mantle system will permit, by imaging subducted slabs down to the core with cutting-edge seismological techniques. Current tectonic plate reconstructions incorporate little if any of this deep structural information, which probably reaches back 300+ million years; they are based on present-day seafloor, which constrains only the past 100-150 million years. DEEP TIME will match deep slab structure to the geological surface record of subduction – volcanic arcs and other crustal slivers that stayed afloat, survived collisions, and form the world’s largest mountain belts. Integrating these two direct records of subduction, the project will * Add paleo-trenches to existing plate reconstructions and extend them 2-3 times longer into the past. * Produce a 3-D atlas of the mantle that matches subducted seafloor with paleo-oceans inferred by land geology. * Rigorously test the hypothesis of vertical slab sinking, which may yield an absolute mantle reference frame. Tomographic models and geological land records will be synthesized into quantitative and testable paleogeographic reconstructions that complement and extend existing ones, especially in paleo-oceanic areas. This is likely to transform our understanding of the earth’s physical surface environment and biosphere during Mesozoic times, as well as the formation of natural resources. It also will put observational constraints on elusive mantle rheologies. Nearly every subdiscipline of the earth sciences could benefit.

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