LA TOMOGRAPHIE SISMIQUE PDF


Seismic tomography enables to model the internal structure of the Earth. The analysis of huge amounts of data leads to improvements in the precisio n of models. 1 juil. Sismicité et géométrie de l’interplaque 3 Sismique marine grand-angle et tomographie. Acquisition: sismique. 3 janv. d’autres laboratoires européens, les méthodes de sismique active et tomographie sismique en ondes SH et par inversion des ondes de.

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Skip to search form Tomogrpahie to main content. Ray tracing graphics Parallel computing Computation. We present a parallel application for seismi c ray-tracing and its exploitation on an experimental computational grid built over sismiqje Renater n twork. Bandwidthcentric allocation of independent tasks on heterogeneous platforms.

Downstream they highlight fractured and deconsolidated bedrock drawing a V-shaped geometry of deposits. The continental crust above the flat slab has very heterogeneous seismic properties which correlate with important deformation structures and geological terranes at the surface.

Calcul de rais en tomographie sismique. Exploitation sur la grille

References Publications referenced by this paper. The aim of our study is to assess, using a thermo-petrological-seismological approach, the differences of the overriding lithosphere between these two regions, in order to fomographie understand the tkmographie structure of the continental lithosphere above the flat slab, and the links between the deformations at the surface and at depth.

Hagedornand Judith E. O pen R epository and Bi bliography. Showing of 10 references. Marianne Marot 1 Details.

FosterNicholas T. In this basin, the main surface water resource for agricultural needs is constituted by a small perennial river, but in recent years this resource is insufficient to satisfy the uses in agriculture.

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Thursday, March 13, – 5: GeorgeJohn G. The alluvial plain which extends from either side of this river banks is expected to have the potential for constituting an alternative water supply for agricultural needs.

tomographie sismique et électrique

From This Paper Figures, tables, and topics from this paper. However, the characterisation of the alluvial plain is still superficial though the plain extension and the nature of the deposits are roughly known. Topics Discussed in This Paper. This geometry is due to the faults and the magmatic intrusions.

Marianne Marot 1 AuthorId: Linear algebra Telecommuting Grid computing. This sizmique could be easily accessible with rudimentary structures such as sumps and could constitute a supplementary water source, for irrigation activities in this second region of Burkina Faso. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms tomkgraphie Serviceand Dataset License.

Flat versus normal subduction zones: All documents in ORBi are protected by a user license.

Calcul de rais en tomographie sismique. Exploitation sur la grille – Semantic Scholar

We show significant seismic differences between the flat and normal subduction zones. We show the most complete regional 3-D seismic tomography images of this region, whereby, in comparison to previous studies, we use 1 a much larger seismic dataset compiled from several short-term seismic catalogs, 2 a much denser seismic station network which enables us to resolve better the subduction zone.

Tomography Central processing unit. Citations Publications citing this paper. HagedornJudith Ellen Devaney As expected, the flat slab region is impacted by colder temperatures, and therefore by faster seismic velocities and more intense seismic activity, compared to the normal slab region. The analysis of huge amounts of data leads to improvements in the precisio n of models but requires massive computations. In International Parallel and Distributed….

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We show evidence that the flat slab dehydrates within the mantle wedge, but also along the subducting ridge prior to tomographir. Have you forgotten your login? Zones de subduction horizontale versus normale: SquyresAndrew LumsdaineWilliam L. Calcul de rais en tomographie sismique. The alluvial plain would be relatively thicker downstream of the study area approximately 30 to 50m.

Scientific congresses and symposiums: Ray tracing graphics Search for additional papers on this topic. We confirm previous studies that have shown that the thick lower crust of the present day Andean arc is non-eclogitized and maybe representing the felsic Chilenia terrane, whereas to the east, sismiaue Cuyania terrane in the backarc is more mafic and contains an eclogitized lower crust.

In upstream of the alluvial plain, near the river, these methods were used to map the sandy to sandy-thin deposits m and the unfractured bedrock. Tuesday, December 11, – 1: From a hydrogeological point of view, downstream of the study area, the alluvial plain would constitute an important aquifer with a high porosity and thick deposits.

Thursday, December 12, – 1: