http://hdl.handle.net/10366/138662 Tue, 21 Apr 2026 12:55:36 GMT 2026-04-21T12:55:36Z http://hdl.handle.net/10366/155457 [EN]Data from a closely spaced wide-angle transect has been used to study the middle-to-lower crust and the Moho in SW-Iberia. A low-fold wide-angle stack image reveals a highly heterogeneous seismic signature at lower-crustal levels changing laterally along the profile. The lower crust features an irregular distribution of the reflectivity that can be explained by a heterogeneous distribution of physical properties. The Moho discontinuity also features a high variability in its seismic character that correlates with the different tectonic terranes in the area. A 2D finite difference code was used for solving the elastic wave equation and to provide synthetic wide-angle shots. Relatively simple layer cake model derived from conventional refraction interpretation generates the main events of the shot records. However, these models cannot account for the lateral variability of the seismic signature. In order to obtain more realistic simulations, the velocity model was modified introducing stochastic lensing at different levels within the crust. The Moho was modelled as a 3 km thick layered structure. The resulting average velocity models include a high velocity layer at mid-crustal depth, a highly reflective lower crust and a relatively thin horizontal Moho. This heterogeneous model can be achieved by lensing within the crust, a layered mafic intrusion and a strongly laminated lower crust and Moho. Thu, 01 Jan 2009 00:00:00 GMT http://hdl.handle.net/10366/155457 2009-01-01T00:00:00Z http://hdl.handle.net/10366/139947 [EN]This presentation summarizes an effort to develop cost effective techniques for mining exploration Tue, 01 Jan 2019 00:00:00 GMT http://hdl.handle.net/10366/139947 2019-01-01T00:00:00Z http://hdl.handle.net/10366/139945 [EN]This presentation includes an image of the structure of the crust and upper mantle in the Central Iberian Zone and across the Central System Tue, 01 Jan 2019 00:00:00 GMT http://hdl.handle.net/10366/139945 2019-01-01T00:00:00Z http://hdl.handle.net/10366/139944 [EN]This communication presents the acquisition of active and passive source seismic data in the Zinkgruvan mine in Sweden in an effort to develop highly resolved and cost-effective exploration methods Tue, 01 Jan 2019 00:00:00 GMT http://hdl.handle.net/10366/139944 2019-01-01T00:00:00Z http://hdl.handle.net/10366/139943 This presentation provides an image of the crustal structure underneath the Central System, in the Central Iberian Zone, by means of seismic noise autocorrelation and wide angle seismic data Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10366/139943 2018-01-01T00:00:00Z http://hdl.handle.net/10366/139942 [EN]This presentation describes the process to retrieve Moho reflections from autocorrelation of seismic noise data Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10366/139942 2018-01-01T00:00:00Z http://hdl.handle.net/10366/139941 [EN]This presentation describes how the subsidence in a mining area can be tracked down from INSAR data and passive seismic data Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10366/139941 2018-01-01T00:00:00Z http://hdl.handle.net/10366/139940 [EN]This presentation was a key-note lecture at the International Symposium on Deep Exploration and Practices. It describes the acquisition of controlled source seismic data in the Iberian Peninsula during the last decades Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10366/139940 2018-01-01T00:00:00Z