Thesis Collection
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Browsing Geogaceta -- Nº 45, (2008) by Issue Date
Now showing items 1-20 of 28
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Reconstrucción de la posición del frente ártico a partir de las asociaciones de foraminíferos planctónicos durante los estadios isotópicos marinos 14, 15 y 16
(2008)Planktic foraminifer assemblages and lithic components from IODP core U1314 (northern North Atlantic) were studied with high resolution from marine isotope stage (MIS) 14 to 16 (~ 530-700 ka). This study aims to contribute ... -
Nuevos restos de ornitópodo (Ornithischia: Ankylopollexia) del Jurásico Superior de Tazones, Asturias (Formación Tereñes)
(2008)Two dorsal vertebral centra of an ornithopod dinosaur from the Late Jurassic of the Principality of Asturias (north Spain) are described. They come from an outcrop of the Tereñes Formation (Kimmeridgian) at Tazones harbour ... -
The Mendiurkullu Member of the Lareo Formation: a deltaestuarine progradational system from the Etxegarate trough (Early Aptian western Aralar Mountains)
(2008)Se describe e interpreta el miembro areniscoso y lutítico de Mendiurkullu dentro de la Formación Lareo, en el oeste del macizo montañoso Vasco-Cantábrico de Aralar (Navarra). Contiene arcillas, limolitas y areniscas finas ... -
Zonación estructural en una zona de cizalla en serpentinitas (Falla de Peña Parda, peridotitas de Ronda)
(2008)We study deformation structures in a serpentinite-bearing normal shear zone in the Ronda peridotites, southern Spain. The fault zone displays a structural zoning composed by four domains showing similar strain gradients. ... -
Fábricas sin-metamórficas, mecanismos y régimen de la deformación en las granulitas de alta presión de Cabo Ortegal (NO de España)
(2008)High-pressure granulitic tectonites from shear zones at the contacts between the Bacariza Formation and its bounding units developed after eo-Hercynian subduction, during the initial exhumation of the Cabo Ortegal complex. ... -
Perfiles de Mg, Sr y Na en conchas de Crassostrea gigas recogidas en puertos deportivos del oeste de la costa de Bizkaia: Control estacional y ontogenético
(2008)The geochemistry of the umbo of the right valve of Crassostrea gigas from three Biscay coast sites (Getxo, Plentzia and Zierbena) has been analyzed to determinate a seasonal and ontogenetic control on the distribution ... -
Prospecciones paleoicnológicas en el sinclinal de Iouaridène (Alto Atlas, Marruecos). Cuantificación de yacimientos y de icnitas
(2008)The Iouaridène syncline is a is famous palaeontological site among the ichnologists for several reasons: i) the time of the site is known - the first footprint paper were published in 1937; ii) the discovery of the sauropod ... -
Analogue modelling of non-cylindric fold-and-thrust belt around diapirs: preliminary results
(2008)Los modelos analógicos representan una herramienta muy útil para investigar el desarrollo progresivo de cinturones de pliegues y cabalgamientos. En este artículo, se presentan resultados preliminares de una serie de ... -
Resto mandibular de ornitópodo iguanodontoideo (Dinosauria) del Cretácico Inferior de Salas de los Infantes (Burgos) en las colecciones del Institut für Geowissenschaften de Tubinga (Alemania)
(2008)A dentary fragment that preserves several teeth in situ of an ornithopod dinosaur from the Lower Cretaceous of Salas de los Infantes (Burgos, Spain) is described. The general aspect and the conservation of the rock ... -
Influencia de la batimetría y tipo de sedimento en la distribución de la microfauna (foraminíferos bentónicos y ostrácodos) en la plataforma marina vasca
(2008)In this work we describe the microfaunal bathymetrical distribution (foraminifers and ostracods) in the benthos of the Basque continental shelf, by studying the spatial distribution of assemblages. This distribution is ... -
Quantitative tools for environmental reconstructions of the recent estuarine infill using benthic foraminifera
(2008)Con la idea de evaluar la respuesta cuantitativa de los foraminíferos con respecto a la distancia relativa a la boca del estuario (RDEM) en los sistemas estuarinos del sur del Golfo de Vizcaya, se ha desarrollado una ... -
Geocronología de la sucesión arqueoestratigráfica de Los Estragales en la Terraza Compleja de Butarque (Valle del río Manzanares, Madrid)
(2008)In the low valley of Manzanares river, south of Madrid, is located the Butarque Complex Terrace formed by piling up of alluvial deposits of the Upper Pleistocene. In Perales del Río they have been excavated and picked ... -
Discriminating Variscan and Alpine deformation in the Eastern Pyrenees. Insight from an AMS study in the Sant Llorenç-La Jonquera pluton
(2008)Las fábricas anisótropas magmáticas en el plutón de Sant Llorenç-La Jonquera, determinadas mediante la técnica de la anisotropía de la susceptibilidad magnética (ASM), presentan una dirección predominante NE-SW y responden ... -
Edad U/Th de los travertinos de Beni Younech y correlación con las terrazas marinas cuaternarias de Ras Leona (SE del Estrecho de Gibraltar, Marruecos)
(2008)Three travertinic levels have been identified in the Beni Younech village, near the Quaternary marine terraces of Ras Leona Point, in the south-eastern coast of the Gibraltar Strait. These travertines developed probably ... -
Lucien Cayeux (1864-1944): un ilustre precursor en la enseñanza de la Petrología Sedimentaria
(2008)Lucien Cayeux (1864-1944) was a crucial scientific figure in France during a particularly hard time in Europe owing to the two World Wars and the social and economic crisis. His ideas about the relevance of sediments and ... -
Tectónica de inversión en la Playa de Sopelana (Arco Vasco, Pirineos occidentales)
(2008)This work analyzes the structural features of the Sopelana Fault, developed in extensional conditions during Cretaceous and Tertiary times, and inverted during the Alpine orogeny. The study area is located on the NE limb ... -
Emplazamiento y deformación de diques con morfología zig-zag en rocas bandeadas y foliadas
(2008)A rather common feature of dykes intruded in banded and/or foliated rocks is their non-planar shape. This study describes the characteristics of zig-zagging magmatic dykes that occur in the Rainy Lake area of the Canadian ... -
Morfoestratigrafía y cronología de registros fluviales del Pleistoceno superior en Bardenas Reales de Navarra: implicaciones paleoambientales
(2008)Quaternary gravel deposits covering the bottom of the Bardena Blanca depression (Central Ebro Basin, Navarra) have been studied. Three Late Pleistocene units (Qt1, Qt2 and Qt3) of gravel accumulation have been differentiated ... -
Evolución térmica de distintas masas de agua a lo largo del estadio isotópico marino 7 basada en el Mg/Ca de la concha de los foraminíferos planctónicos
(2008)Mg/Ca measurements have been performed on tests from the planktonic foraminifers Globigerinoides ruber (white) and Globigerina bulloides in samples from ODP site 977A in the Alboran Sea (Western Mediterranean) in order ... -
Factores que controlan la relación Sr/Ca en foraminíferos planctónicos y su repercusión en las reconstrucciones de paleotemperaturas basadas en corales
(2008)Samples from core ODP site 977, retrieved in the Alboran Sea (Western Mediterranean Sea), have been studied in order to better constrain the factors controlling the Sr/Ca ratio in planktonic foraminifers. For this purpose, ...
