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Content archived on 2024-06-18

Arctic Geo-hazards, Geo-fluids and Climate Change

Objective

Recent studies indicate that water and methane stored in deep sediments might be abruptly mobilized by warming due to Climate Change.
At the particularly climate-sensitive Arctic margin, sudden migration of such deep geo-fluids might cause submarine slope instability and
landslides, and might even result in a significant release of methane into the atmosphere. Submarine landslides threaten infrastructures
and can generate tsunamis. Today’s high interest in Arctic resources indicates an impending increase in industrial seafloor usage,
especially near coastal areas. During past climate oscillations, protruding and retreating Arctic glaciers favored deposition of alternating
sandy and clayey layers on the slope. These sediments differ in porosity, density and water content because they experienced disparate
depositional history and mechanical consolidation, due to past waning and waxing of grounded glaciers. Ongoing temperature rise may
help to free geo-fluids that change current flow rates. Upward fluid migration in fractures and sediment layers with different properties will
cause local high pore pressures that will decrease the shear strength of layers and potentially trigger submarine slides. Similar geological
scenarios occurring during past interglacial periods are viable for large-scale submarine slides discovered in the region.
This project aims at developing a detailed 3D numerical modeling of fluid flow at a type-example of an Arctic continental margin. We will
determine the hydrogeological system, and numerically simulate scenarios of changing fluid flow rates, and how they affect pore pressure
to study their potential effect on slope stability along the continental slope offshore Svalbard Archipelago (Norway). Modeling will be based
on available, unpublished, recently collected 2D seismic data, multibeam bathymetry data, and core data from the region. Structural
information will be complemented with laboratory work that will provide sediment properties.

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Topic(s)

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Call for proposal

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FP7-PEOPLE-2012-IEF
See other projects for this call

Funding Scheme

Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.

MC-IEF - Intra-European Fellowships (IEF)

Coordinator

UNIVERSITAT DE BARCELONA
EU contribution
€ 173 370,60
Address
GRAN VIA DE LES CORTS CATALANES 585
08007 BARCELONA
Spain

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Region
Este Cataluña Barcelona
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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