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Crustal structure deduced from receiver functions via single-scattering migration ArchiMer
Bertrand, E; Deschamps, A; Virieux, J.
An investigation of the teleseismic P -wave coda is performed using the single-scattering approximation. The method allows one to image short-wavelength scale (less than or equal to2 km) velocity and density heterogeneities and structures that are barely detected by traveltime tomography. Source effects are removed by using receiver functions for data interpretation, but the amplitude (especially the sign of the signal) is synthesized. Both broad-band seismological stations in the southwestern Alps (France) and Campanian plain (Italy) are used for the illustration of the proposed method. Because of the large aperture of our arrays, laterally small-scale heterogeneities are difficult to image and we must assume lateral continuity of the detectable...
Tipo: Text Palavras-chave: Body waves; Broad-band; Crustal structure; Moho discontinuity; P-to-S conversions; Scattering; Waveform analysis.
Ano: 2002 URL: https://archimer.ifremer.fr/doc/00466/57762/60036.pdf
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