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Browsing by Author "Larrasoaña, J. C."
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Análisis mineralógico de las arcillas del tránsito Mioceno inferior-medio en la sección Loma Negra (Bardenas Reales de Navarra, Cuenca del Ebro)
Suárez Hernando, Oier; Zuluaga, María Cruz; Martínez García, Blanca; Suárez Bilbao, Aitziber; Murelaga, Xabier; Larrasoaña, J. C. (Sociedad Geológica de España, 2016)A continuous succession of Lower and Middle Miocene continental sediments, ranging from 20.5 to 15.5 Ma, crops out in the Natural Park of Bardenas Reales de Navarra. The good characteristics of the outcrops has favoured ... -
Caracterización petrológica del sílex de la Formación Calizas de Montmaneu (Sector oriental de la Cuenca del Ebro)
Ortega, David; Terradas, Xavier; Roque, C.; Ibáñez, Jordi; Beamud, Elisabet; Larrasoaña, J. C. (Sociedad Geológica de España, 2016)Flint from Montmaneu's Limestones Formation of Rupelian age (Oligocene) is being here characterized. The analysis of the compositional texture, mineralogy and geochemical features has revealed this flint is highly pure and ... -
Datos magnetotectónicos del Eoceno de la Cuenca de Jaca-Pamplona: resultados iniciales
Larrasoaña, J. C.; Pueyo Morer, Emilio L.; Valle de Lersundi, J. del; Millán Garrido, H.; Parés, J. M.; Pocoví Juan, Andrés; Dinarès Turell, Jaume (Sociedad Geológica de España, 1996)This paper presents the first magnetotectonic data of the central fringe of the Jaca-Pamplona Basin. These data have been obtained from 16 sites located in marls, tirbidites and limestones of Eocene age. In the central and ... -
El sílex de tipo “Urbasa”. Caracterización petrológica y geoquímica de un marcador litológico en yacimientos arqueológicos del Suroeste europeo durante el Pleistoceno superior y Holoceno inicial
Tarriño, A.; Olivares, M.; Etxebarria, N.; Baceta, Juan Ignacio; Larrasoaña, J. C.; Yusta, Iñaki; Pizarro, José Luis; Cava, A.; Barandiarán, I.; Murelaga, Xabier (2007)The “Urbasa” flint, which occurs intercalated within shallow-water limestones of Thanetian (upper Paleocene) age was one of the best and most used flint sources during the Prehistoric times in the Basque-Cantabrian area. ... -
Fósiles de pisadas de aves en el Oligoceno de Etaio (Navarra, Cuenca del Ebro)
Murelaga, Xabier; Astibia, H.; Baceta, Juan Ignacio; Almar, Y.; Beamud, B.; Larrasoaña, J. C. (2006)In this paper, we report and describe avian fossil remains recently found near the village of Etaio (Navarra province). The remains are small footprints and casts that may be attributed to Charadriiformes. Of the three ... -
Nueva localidad fosilífera en el Mioceno Inferior de Bargota (Navarra) (Cuenca del Ebro, Península Ibérica)
In this study we report a new fossil locality found in the continental sediments of the Haro Formation. This formation is composed of palustrine, lacustrine and distal alluvial facies that represent the sedimentary filling ... -
Nueva localidad fosilífera en el mioceno inferior de las Bárdenas Reales de Navarra (cuenca del ebro, península ibérica)
Murelaga, Xabier; Larrasoaña, J. C.; Garcés, M. (Sociedad Geológica de España, 2004)In this study we report a new fossil locality found in the continental sediments of the Tudela Formation. This formation is composed of palustrine, lacustrine and distal aluvial fades that represent the sedimentary ...