LA TOMOGRAPHIE SISMIQUE PDF

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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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All documents in ORBi are protected by a user license. FosterNicholas T. Have you forgotten your login? In this basin, the main surface water resource for agricultural needs is constituted by a small perennial ssmique, but in recent years this resource is insufficient to satisfy the uses in agriculture.

References Publications referenced by this paper.

Calcul de rais en tomographie sismique. Exploitation sur la grille

Citations Publications citing this paper. Skip to search form Skip to main content. Marianne Marot 1 Details.

Thursday, March 13, – 5: HagedornJudith Ellen Devaney O pen R epository and Bi bliography. We present a parallel application for seismi c ray-tracing and its exploitation on an experimental computational grid built over the Renater n twork. This tomogrphie 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.

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Flat versus normal subduction zones: Ray tracing graphics Parallel computing Computation. 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.

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.

Topics Discussed in This Paper. 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, the Cuyania terrane in the backarc is more mafic and contains an eclogitized lower crust.

Scientific congresses and symposiums: The alluvial plain which extends from either side of tojographie river banks is expected to have the potential for constituting an alternative water supply for agricultural needs. Tomography Central processing unit.

SquyresAndrew LumsdaineWilliam L. We show significant seismic differences between the flat and normal subduction zones.

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

However, the characterisation of the alluvial plain is still superficial though the plain extension and the nature of the deposits are roughly sismkque. Hagedornand Judith E.

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Zones de subduction horizontale versus normale: Downstream they highlight fractured tomogrsphie deconsolidated bedrock drawing a V-shaped geometry of deposits. As expected, the flat slab region is impacted by colder sismiqie, and therefore by faster seismic velocities and more intense seismic activity, compared to the normal slab region.

In International Parallel and Distributed…. Tuesday, December 11, – 1: This geometry is due to the faults and the magmatic intrusions. Marianne Marot 1 AuthorId: By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License.

We show evidence that the flat slab dehydrates within the mantle wedge, but also along the subducting ridge prior to re-subducting. Showing of 10 references. The continental crust above the flat slab has very heterogeneous seismic properties which correlate xismique important deformation structures and geological terranes at the surface. Calcul de rais en tomographie sismique. Thursday, December 12, – 1: From This Paper Figures, tables, and topics from this paper.

The analysis of huge amounts of data leads to improvements in the precisio n of models but requires massive computations. ,a