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Content archived on 2024-05-07

Tomographic inversion of refraction seismic data - application to the study of ocean crust formation processes at very slow spreading centers

Objective



Research objectives and content
In 1988 IFREMER conducted a geophysical program to study the Mohns Ridge, a very slow spreading center located in the Norwegian-Greenland Sea. It is fundamentally important to re-examine the dataset in view of: 1) the interpretation of the bathymetric and magnetic data 2) the preliminary interpretation of the seismic data and 3) new findings concerning the processes of formation of ocean crust at very slow spreading centers. This project proposes to develop a new method for the tomographic inversion of the refraction seismic data and apply this method to the study of the accretion processes at very slow spreading centers. Dataset: 8 high resolution profiles parallel to the Mohns Ridge axis.
Methods:
- Development of a code for the interpretation of the refraction data using the tomographic technique. - Interpretation and incorporation of additional geophysical data. - Performance of accuracy and stability tests on the code. - Determination of the structure of the ocean crust, the thickness of layer 3 and the extent of sepentinization at the Mohns Ridge.
Training content (objective, benefit and expected impact)
This project offers me an opportunity to:
- develop expertise in the areas of refraction and tomography - deepen my study of fundamental MOR processes - sharpen my programming skills, using modern programming languages
Links with industry / industrial relevance (22)
Study of serpentinization process and the production of methane rich plumes in layer 3.

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RGI - Research grants (individual fellowships)

Coordinator

IFREMER - INSTITUT FRANÇAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER
EU contribution
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Address
Technopole Brest Iroise
29280 PLOUZANE
France

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Total cost

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Participants (1)

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