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Browsing by Author "Cortés Gracia, A. L."
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Determinación de patrones de fracturación en el Neógeno del NE de la Cuenca del Duero a partir de una imagen de satélite
Cortés Gracia, A. L.; Maestro González, Adolfo; Soriano, María Asunción (Sociedad Geológica de España, 1997)FrOm.the study of satellite imagery, up to 1.396 lineaments on Neogene rocks of the northeastern Duero Basin have been identified. Length of lineaments fluctuates from 137 to 19.818 m. The statistical analysis of lineament ... -
El anticlinal de Muel-Jaulín (Zaragoza) y su relación con la extensión cretácica
Liesa, Carlos L.; Cortés Gracia, A. L.; Soria, Ana Rosa (Sociedad Geológica de España, 1997)The Muel-Jaulin region shows structures related to the Lower Cretaceous extension and the Tertiary compression respectively. Cretaceous normal faults constitute the northern border of the Aguilôn Cretaceous basin, appearing ... -
El campo de esfuerzos compresivo neógeno en el NE de la Península Ibérica
Cortés Gracia, A. L.; Liesa, Carlos L.; Simón Gómez, José Luis; Maestro González, Adolfo; Arlegui, L. E.; Casas Sainz, Antonio (Sociedad Geológica de España, 1996)The Neogene stress field in the northeastern Iberian Peninsula is reconstructed from the analysis of brittle mesostructures (stylolytes, tension gashes, fault populations and joints). Compression directions obtained show ... -
Estructura del sector norte de la Cuenca de Almazán (Cordillera Ibérica)
Maestro González, Adolfo; Cortés Gracia, A. L.; Casas Sainz, Antonio (Sociedad Geológica de España, 1997)The Tertiary compressional structure of the northern sector of the Almazan basin is defined by several E-W to NW-SE trending folds. These folds extend from the northern and eastern basin borders to the central part. ... -
Estudio comparado de la evolución e inversión de distintas cuencas mesozoicas de la Placa Ibérica
Casas Sainz, Antonio; Cortés Gracia, A. L.; Liesa, Carlos L.; Soria, Ana Rosa; Terrinha, P.; Kullberg, J. C.; Rocha, R. da (Sociedad Geológica de España, 1997)The marginal zones of the Maestrazgo Basin (Las Parras and Galve basins) and the Algarve Basin show a similar evolution during basin formation (mainly Jurassic and Early Cretaceous) and inversion (Oligocene-Early Miocene). ... -
Fosas neógenas asociadas a reactivación de pliegues en el borde sur de la Sierra de Cantabria (Alava-Navarra)
Cortés Gracia, A. L.; Casas Sainz, Antonio (Sociedad Geológica de España, 1996)In the hanging wall of the Sierra de Cantabria thrust (western sector of the southern Pyrenees) there are two Neogene graben with long axes oriented NE-SW and E-W. They are 10x3 and 15x3 km wide, respectively and filled ... -
La transición de pliegues de despegue a pliegues de propagación: el ejemplo del anticlinal de Aguilón (Cordillera Ibérica)
Cortés Gracia, A. L.; Casas Sainz, Antonio (Sociedad Geológica de España, 1995)The northern border of the Iberian Chain shows detachment and fault-propagation folds that deform the mesozoic and tertiary sedimerits near Zaragoza. The regional detachment level are the lutitic and gypsyferous beds of ... -
Pliegues flexurales asociados al cabalgamiento de la Sierra de la Demanda en el Cerro Penalba (La Rioja)
Cortés Gracia, A. L.; Casas Sainz, Antonio (Sociedad Geológica de España, 1996)The Cerro Penalbà fold system is located at the northern border of the Sierra de la Demanda, within a thrust sheet, up tp 500 m thick, formed by overturned marine Jurassic beds, This thrust sheet is located between paleozoic ...