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Browsing by Author "Martín Velázquez, Silvia"
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Caracterización de materiales volcánicos mediante técnicas geofísicas someras: 1. Tomografía eléctrica
Gómez Ortiz, David; Martín Crespo, Tomás; Martín Velázquez, Silvia; Lillo, Francisco Javier; López, Iván; Carreño, Francisco (Sociedad Geológica de España, 2005)Volcanic deposits and structures are characterized by a high variability in both geometry and physical properties. These changes are common not only in a vertical direction but in the horizontal one too. As a result, the ... -
Caracterización de materiales volcánicos mediante técnicas geofísicas someras: 2. Georadar
Gómez Ortiz, David; Martín Crespo, Tomás; Martín Velázquez, Silvia; Márquez, Álvaro; Lillo, Francisco Javier; López, Iván; Carreño, Francisco (Sociedad Geológica de España, 2005)We have analyzed the ground penetrating radar (GPR) response in several volcanic materials (massive, pahoehoe and aa lava flows and airfall deposits) occurring in the Las Cañadas edifice (Tenerife, Canary Islands), in ... -
Caracterización geoambiental de balsas de lodos mineros mediante tomografía eléctrica
Gómez Ortiz, David; Martín Crespo, Tomás; Martín Velázquez, Silvia; Lillo, Francisco Javier; Ignacio, Cristina de (2007)The mining of copper from sulphide ores, besides the metal production, generates large amounts of mine tailings that are deposited, e.g. in impoundments. Furthermore, due to natural leaching from these impoundments, ... -
Deformación cenozoica de la litosfera Ibérica: Sistema Central y cuencas del Duero y Tajo
The Cenozoic deformation of the Iberian lithosphere along a NW-SE profile from the northern Duero Basin to the southern Tajo Basin, crossing Spanish Central System, has been analysed by means of a numerical simulation ... -
Determinación de campos regionales de esfuerzo en el Prebético de Albacete
Martín Velázquez, Silvia; Vicente, Gerardo de; Rodríguez Pascua, M. A. (Sociedad Geológica de España, 1996)A microstructural analysis has been carried out in the northernmost part of the External Zone in the Betic Cordilleras (Albacete province). Paleostress orientations have been calculated from 1.326 striated fault planes ... -
Períodos de recurrencia de paleoterremotos en sedimentos varvados lacustres del Mioceno superior. Cuenca de Híjar (Albacete)
Rodríguez Pascua, M. A.; Vicente, Gerardo de; Ramírez Rayo, M. S.; Martín Velázquez, Silvia; Calvo, J. Pedro (Sociedad Geológica de España, 1996)Paleoseismic imprimt in lacustrine varved sediments (Upper Miocene) has been made in the Hijar Basin (External Prebetic, Albacete). Mixed layers related to seismic activity have been observed in the varved sediments. These ... -
Rango de magnitudes de los esfuerzos tectónicos en una zona intraplaca: el macizo de El Berrocal, borde sur del Sistema Central Español
Martín Velázquez, Silvia; Vicente, Gerardo de; Muñoz Martín, Alfonso; Elorza, F. J.; Vela, A. (Sociedad Geológica de España, 2002)Stress magnitudes throughout a NW-SE cross-section in El Berrocal granitic massif (Spanish Central System) have been analysed by means of finite element modelling. Topographic surface, lithological differences and recent ...