GIGT. Ponencias / Actashttp://hdl.handle.net/10366/1386622026-04-23T00:17:57Z2026-04-23T00:17:57ZSeismic imaging and modelling of the lithosphere of SW-Iberia.Flecha, IsaacPalomeras Torres, InmaculadaCarbonell, R.Simancas, F.Ayarza Arribas, María PuyMatas, J.González Lodeiro, F.Pérez‐Estaún, A.http://hdl.handle.net/10366/1554572025-04-30T20:40:43Z2009-01-01T00:00:00Z[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.
2009-01-01T00:00:00ZSIT4ME: seismic imaging for mining exploration in Sotiel-Elvira (Spain)Alcalde, J.Martínez, Y.Martí, DavidAyarza Arribas, María PuyRuiz, M.Marzán, I.Tornos, F.Malehmir, A.Gil de la Iglesia, ABuske, S.Orlowsky, D.Carbonell, Ramónhttp://hdl.handle.net/10366/1399472025-04-30T20:40:43Z2019-01-01T00:00:00Z[EN]This presentation summarizes an effort to develop cost effective techniques for mining exploration
2019-01-01T00:00:00ZImaging the lithospheric structure of the Central Iberian ZoneAndrés, J.Draganov, D.Ayarza Arribas, María PuySchimmel, M.Palomeras Torres, InmaculadaRuiz, M.Carbonell, Ramónhttp://hdl.handle.net/10366/1399452025-04-30T20:40:43Z2019-01-01T00:00:00Z[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
2019-01-01T00:00:00ZActive and passive-source seismic imaging for exploration of deep-seated massive sulphide mineralization in the Zinkgruvan mine, south-central SwedenGil de la Iglesia, AMalehmir, A.Lund, BBrodic, BBuske, S.Carbonell, RamónAlcalde, J.Orlowsky, D.Lindskog, LHagerud, APenney, Mhttp://hdl.handle.net/10366/1399442025-04-30T20:40:44Z2019-01-01T00:00:00Z[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
2019-01-01T00:00:00ZCrustal structure of the Spanish Central System: Constraints from ambient noise autocorrelation and controlled source dataAndrés, J.Schimmel, M.Ruiz, M.Ayarza Arribas, María PuyGonzález Lodeiro, F.Rodríguez Fernández, L.R.Muñoz Martín, A.Granja Bruña, J.L.Torné, M.Carbonell, Ramónhttp://hdl.handle.net/10366/1399432025-04-30T20:40:44Z2018-01-01T00:00:00ZThis 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
2018-01-01T00:00:00ZIs it possible to retrieve Moho reflections from high-frequency autocorrelations of ambient noise?Andrés, J.Schimmel, M.Ayarza Arribas, María PuyRuiz, M.Romero, P.Carbonell, Ramónhttp://hdl.handle.net/10366/1399422025-04-30T20:40:44Z2018-01-01T00:00:00Z[EN]This presentation describes the process to retrieve Moho reflections from autocorrelation of seismic noise data
2018-01-01T00:00:00ZIntegration of SAR and passive seismic data for monitoring mining activities (Minas Riotinto, SW Iberia)Marzán, I.Escayo, J.Martí, DavidTornos, F.Ruiz, M.Andrés, J.Schimmel, M.Luzón, F.Carbonell, RamónFernández, J.http://hdl.handle.net/10366/1399412025-04-30T20:40:44Z2018-01-01T00:00:00Z[EN]This presentation describes how the subsidence in a mining area can be tracked down from INSAR data and passive seismic data
2018-01-01T00:00:00ZDeep seismic exploration of the Iberian MicroplateAndrés, J.Martí, DavidMarzán, I.Palomeras Torres, InmaculadaAyarza Arribas, María PuySimancas, F.Martínez Poyatos, D.Azor Pérez, AntonioGonzález Lodeiro, F.Díaz, JordiCarbonell, Ramónhttp://hdl.handle.net/10366/1399402025-04-30T20:40:45Z2018-01-01T00:00:00Z[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
2018-01-01T00:00:00Z