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Shallow subsurface 3-D seismic velocity structure (Záncara river basin, Iberian Peninsula)

AuthorsMartí, David ; Marzán, Ignacio; Kormann, Jean ; Alvarez-Marrón, Joaquina ; Carbonell, Ramón
Issue Date15-May-2016
PublisherUniversity of Aberdeen
Citation17th International Seismix Symposium: 104 (2016)
AbstractTraveltime tomography provides a very useful tool to characterize in detail the uppermost deposits of a shallow sedimentary sequence. Nevertheless, if the stratigraphic succession presents a complex internal structure, such as diffused lithological boundaries or a large variability for properties within the same lithology, the direct geological interpretation becomes very difficult. In this case, the integration of all the geophysical parameters available is mandatory to better characterize the subsurface. The study area corresponds to a Miocene syncline located in the Záncara River Basin (Cuenca, Spain). The sedimentary sequence consists in a transition from shales to massive gypsums. A 3D traveltime tomography were acquired within a 500x500 m area using a regular grid distributed in a North-South alternated shot and receiver lines. A final inversion grid of 10x20x5 m provided a detailed velocity model of the first hundred meters.
Appears in Collections:(Geo3Bcn) Comunicaciones congresos
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