Objective
The Mediterranean Ridge is generally considered to be a prism of sediments scraped off the subducting African plate accreted against the front of the overriding European plate during the process of convergence. IMERSE sets out to study the processes of deformation and fluid expulsion occurring within this
deforming sediment pile and to better delineate the geological boundary between Africa and Europe. The overall objective of IMERSE is to provide the seismic observations necessary for a high resolution structural model for the Western Mediterranean Ridge, for a model of porosity distribution within the wedge, and for an understanding of this accretionary wedge as a
system of interrelated deformation, sediment dewatering, and fluid expulsion.
The IMERSE data set will consist of a combination of
wide-angle and near- vertical reflection data, providing
respectively the velocity and high resolution structural
information required to meet the objectives. These data will be acquired both as profiles across the accretionary wedge of sediments and also within a small area across the deformation front, providing both a two-dimensional section across the
entire system and a three-dimensional data volume in the most critical region. The near-vertical data will be acquired using a large tuned airgun source array, and the wide-angle data
will be acquired by the ocean-bottom seismometers deployed to record the airgun shots.
The data sets will be used to construct a detailed velocity
model for the deforming sediments, using iterative prestack
depth migration on the near- vertical data, and through the
modelling of the wide-angle data. This will subsequently be
inverted for porosity, thus providing information on the
current fluid volume within the deforming sediment pile, and hence by comparison with the undeformed equivalent units, on the fluid expelled from the wedge during accretion and
deformation.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Programme(s)
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Funding Scheme
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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.
Coordinator
24148 Kiel
Germany
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.