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Browsing Geogaceta -- Nº 47, (2009) by Title
Now showing items 1-20 of 38
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Anisotropía de la Susceptibilidad Magnética y direcciones de flujo en diques recientes. Complejos volcánicos de las Islas Corvo y Flores (Azores Occidentales, Placa Norteamericana)
(2009)Different models of relation between flow and Anisotropy of Magnetic Susceptibility axis have been postulated. The main models link the magnetic foliation with the dyke wall, where the magnetic lineation is parallel to ... -
Basaltos subalcalinos en las coladas de la cuenca del Ser (Zona Volcánica de Olot)
(2009)The geochemical study of pyroclastic cones and flows of the Ser basin (Olot Volcanic Field, NE Spain) shows significant compositional differences among the volcanic centers and flows. The seven cones sampled are typically ... -
Caracterización química de esfenas ígneas y aplicación del geotermómetro de Zr en esfena a procesos tardimagmáticos
(2009)This preliminary work illustrates the chemical composition of sphene from Variscan tonalites with sphene-centered ocellar texture (Ribadelago pluton, NW Iberian Massif). The ocellar texture is linked with the percolation ... -
Cefalópodos del Ordovícico Medio de la Formación Valongo, norte de Portugal
(2009)Ordovician cephalopods from the Valongo Formation are among the first Ordovician fossils described from the Iberian Peninsula. The present review shows a lower taxonomical diversity than previously reported. Large ... -
Characterization and planktonic foraminifera biostratigraphy of the transition Black Flysch Group -Calcareous Flysch between Usurbil and Hernani, westernmost Pyrenees
(2009)La realización de una cartografía de detalle junto al análisis sedimentológico y bioestratigráfico del contacto entre las unidades del Grupo Flysch Negro y el Flysch Calcáreo entre las localidades de Usurbil y Hernani ... -
Deslizamientos submarinos recientes en la Cresta de Alborán (Mar de Alborán)
(2009)From swath bathymetry data and high-resolution acoustic profiles (TOPAS) several slides have been imaged in the Alboran Ridge in the western Mediterranean. This submarine relief is the most prominent morphological feature ... -
Distribución de los Foraminíferos bentónicos recientes en el estuario de Tina Menor (Cantabria)
(2009)With the aim to describe the recent distribution of the benthic foraminifers, 17 samples from sediments of the Tina Menor estuary (Cantabria, N Spain) have been analysed. A total of 50 species have been identified 30 of ... -
Edad y significado de las tufas sobre el río Dúrcal en Cónchar (Granada, Andalucía, España)
(2009)The ages of the tufa terraces of the Dúrcal River, in the vicinity of Cónchar, were obtained through the amino acid racemization method, which define the begining of the fluvial incision and the successive periods of ... -
El límite Cámbrico-Ordovícico en el sinclinal de la Peña de Francia: Evidencias litológicas, sedimentológicas y geoquímicas
(2009)Several levels of conglomerate cropping out in the Peña de Francia syncline were previously included in the Ordovician basal unit. However, a Lower Cambrian conglomerate can be identified inside, even in the areas where ... -
El primer resto directo de terópodo del Cenomaniense de la Peninsula Ibérica: el diente de Limanes (Oviedo, Asturias)
(2009)We describe an isolated tooth of a theropod dinosaur recovered at the Limanes village, in the vicinity of Oviedo (Principality of Asturias, north Spain). It comes from an outcrop of the La Manjoya Formation, possibly ... -
Estudio morfométrico comparativo de la escápula y húmero de ciervo (Cervus elaphus) y reno (Rangifer tarandus) del Pleistoceno Superior
(2009)The aim of this paper is to offer a comparative morphometric study of scapula and humerus between red deer (Cervus elaphus) and reindeer (Rangifer tarandus). Both species show a similar morphology but with small differences ... -
Etapas de formación de dolomías masivas del entorno de La Florida-El Soplao, Cantabria
(2009)Dolomitization played a very important role in producing porosity within the Late Aptian shallow marine carbonates hosting the El Soplao Cave and La Forida mine deposit. A detailed petrographic study of samples from a ... -
An example on the tectonic origin of zebra dolomites: the San Martín beach outcrop (Santoña, North Spain)
(2009)El origen de la dolomita cebra o bandeada ha sido históricamente discutido. Su presencia en distintos contextos, normalmente asociadas a mineralizaciones de tipo MVT, ha llevado a asociarla mayoritariamente a dichos ... -
Facies and facies association distribution on the Triassic carbonate platform of the Alpujarride Complex (Betic Internal Zone, SE Spain)
(2009)La Formación Meta-carbonatada de la unidad de Gádor-Turón (Complejo Alpujárride, Zona Interna) está formada por seis miembros, en los que se han reconocido diferentes intervalos, facies y asociaciones de facies. Se han ... -
Florentino Díaz García, In Memóriam
(2009)This note is aimed to remember our friend and colleague Florentino Díaz García, died last august in Oviedo, the city where he obtained his grade in Geology and his PhD, and in whose University taught during twenty six ... -
Geoelectrical imaging supporting glauberite deposits evaluation in the Montes de Torrero area (Zaragoza)
(2009)La glauberita es un sulfato sódico que se explota con fines industriales. En el año 2002 en los depósitos evaporíticos miocenos de la formación Yesos y Anhidritas de Zaragoza se encontró glauberita en profundidad en una ... -
Indicadores geoquímicos de cambios ambientales en secuencias aluviales holocenas de Bardenas Reales
(2009)Geochemical features and Chemical Index of Alteration (CIA), corrected for Ca from calcite, were studied in Holocene alluvial sequences from Bardenas Reales of Navarra. The five sequences, distinguished by using ... -
Jade nefrítico en las peridotitas de Ronda
(2009)We report the presence of nephrite jade, a semiprecious gemstone, in the Ronda peridotites (Betic Cordilleras, southern Spain). These rocks are formed by submicroscopic to fine-grained aggregates of tremolite with felted ... -
Juan Vilanova y Piera (1821-1893) y la primera tortuga hallada en el Mesozoico español
(2009)MNCN 59511 is a natural inner cast of the caparace of a Pancryptodiran turtle from the Lower Cretaceous of Morella (Castellón), whose discovery was attributed to José Royo y Gómez. However, information available at the ... -
La plataforma urgoniana aptiense del sur de Bilbao (valle de Bolintxu): organización estratigráfica y evolución
(2009)An Aptian rudist limestone unit, up to 200m thick and extending more than 3km, lies 2km to the south of Bilbao. The stratigraphy and mapping of the limestones in the Bolintxu valley reveal diachronous lower and upper ...
