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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Downstream they highlight fractured and deconsolidated bedrock drawing a V-shaped geometry of deposits. Marianne Marot 1 Details.

Have you forgotten your login? Ray tracing graphics Search for additional papers on this topic. Topics Discussed in This Paper. This geometry is due to the faults and the magmatic intrusions.

Calcul de rais en tomographie sismique. Exploitation sur la grille

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. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License.

Skip to search form Skip to main content. O pen R epository and Bi bliography. GeorgeJohn G. As expected, the flat slab region is impacted by colder temperatures, and tomoraphie by faster seismic velocities and more intense seismic activity, compared to the normal slab region.

This aquifer 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. Thursday, December 12, – 1: The continental crust above the flat slab has very heterogeneous seismic properties which correlate with important deformation structures and geological terranes at the surface.

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tomographie sismique et électrique

Hagedornand Judith E. 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.

tomograhpie

sixmique All documents in ORBi are protected by tomograpie user license. Tuesday, December 11, – 1: 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 better understand the deep structure of the continental lithosphere above the flat slab, and the links between the deformations at the surface and at depth.

HagedornJudith Ellen Devaney Tomography Central processing unit. Ray tracing graphics Parallel computing Computation.

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

Calcul de rais en tomographie sismique. Citations Publications citing this paper. SquyresAndrew LumsdaineWilliam L.

Marianne Marot 1 AuthorId: We show significant seismic differences between the flat and normal subduction zones. Scientific congresses and symposiums: References Publications ssismique by this paper. Showing of 10 references. 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.

Linear algebra Telecommuting Grid computing. 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. Flat versus normal subduction zones: We sismiqu a parallel application for seismi c ray-tracing and its exploitation on an experimental computational grid built over the Renater n twork. The alluvial plain would sisique relatively thicker downstream of the study area approximately 30 to 50m.

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FosterNicholas T. Thursday, March 13, – 5: We confirm previous studies that have shown that the thick lower crust of sisimque present day Andean arc is non-eclogitized and maybe representing the felsic Chilenia terrane, whereas to the east, the Cuyania terrane in the backarc is more mafic and contains an eclogitized lower crust. Bandwidthcentric allocation of independent tasks on heterogeneous platforms. 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.

Zones de subduction horizontale versus normale: 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.

We show evidence that the flat slab dehydrates within the mantle wedge, but also along pa subducting ridge prior to re-subducting. In International Parallel and Distributed…. The analysis of huge amounts of data leads to improvements in the precisio n of models but requires massive computations.