Browsing DGEO - Artículos by Title
Now showing items 80-99 of 118
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Palynological age constraint of Les Vilelles unit, Catalan Coastal Chain, Spain
(Universitat de Barcelona, 2015)Les Vilelles unit is a detrital sequence exposed at the southwestern margin of the Catalan Coastal Chain (CCC), NE Spain, below the Carboniferous turbiditic series. Based on the palynological content, the age of this unit ... -
Petrogénesis del plutón monzogranítico peralumínico de Santa Eufemia (Batolito de los Pedroches, Córdoba)
(Consejo Superior de Investigaciones Científicas, CSIC: Museo Nacional de Ciencias Naturales, 1989-04)El plutón de Santa Eufemia forma parte del batolito de Los Pedroches, situado en el extremo sudoccidental de la Zona Centro-Ibérica del Macizo Hercínico español. Este batolito de carácter epizonal y postcinemático está ... -
Petrografía y mineralogía de las rocas básicas e intermedias de Sanabria (Zamora)
(Universidade da Coruña: Instituto Universitario de Geología, 2000-12)Las rocas ígneas que afloran en la zona de los Lagos de Sanabria (Anticlinal de Ollo de Sapo) constituyen un ejemplo único en el Macizo Ibérico de interacción de rocas granodioríticas, zonas migmatíticas y rocas ... -
Petrología, evolución geodinámica y georrecursos del Espacio Natural de Sierra Nevada
(Consejo Superior de Investigaciones Científicas, 2007)En este trabajo se muestra la distribución espacial de las diferentes formaciones geológicas que forman los Complejos del Veleta y del Mulhacén en el Espacio Natural de Sierra Nevada y se ilustran, mediante fotos ... -
Petrologic and geochemical constraints on the origin of Astaneh pluton, Zagros orogenic belt, Iran
(Elsevier, 2010)The Astaneh plutonic complex consists of a series of granitoid rocks ranging in composition from quartzdiorites to monzogranites and evolving from metaluminous to weakly peraluminous compositions. They belong to the ... -
Petrology, geochemistry and thermobarometry of the northern area of the Flamenco pluton, Coastal Range batholith, northern Chile. A thermal approach to the emplacement processes in the Jurassic andean batholiths
(Elsevier, 2016)The Flamenco pluton is part of a N–S alignment of Late Triassic to Early Jurassic intrusive belt comprising the westernmost part of the Coastal Range batholith in northern Chile. The Jurassic-Cretaceous voluminous magmatism ... -
Pit lakes from Southern Sweden: natural radioactivity and elementary characterization
(Nature Research, 2020-08)Natural radioactivity in the environment is a field gaining more attention in last decades. This work is focused on the study of natural radioactivity complemented with elementary characterization at former non‑uraniferous ... -
Pollutant transport processes in the Odiel River (SW Spain) during rain events
(American Geophysical Union, 2012)An understanding of pollutant processes in rivers under different hydrological conditions is essential to assess its long-term evolution. This is especially relevant in Mediterranean rivers during rain events, when most ... -
Preliminary results of ecotoxicological assessment of an Acid Mine Drainage (AMD) passive treatment system testing water quality of depurated lixiviates
(Elsevier, 2017)The current work reports on the preliminary results of a toxicity test using screening experiments to check the efficiency of an innovative passive treatment plant designed for acid mine drainage purification. Bioassays ... -
Process-based modelling of NH3 exchange with grazed grasslands
(European Geosciences Union, 2017-01)In this study the GAG model, a process-based ammonia (NH3) emission model for urine patches, was extended and applied for the field scale. The new model (GAG_field) was tested over two modelling periods, for which ... -
Propiedades básicas de petrografía óptica aplicadas a la clasificación y estudio de las rocas ígneas
(Asociación Española para la Enseñanza de las Ciencias de la Tierra, AEPECT, 2012-08)El objetivo del taller es ofrecer una guía práctica para clasificar rocas ígneas de acuerdo con su composición mineralógica e inferir algunos aspectos elementales de su génesis a partir de su textura. La herramienta ... -
Raw material procurement and selection in Southeast Iberia’s early metallurgy
(CSIC, 2020-06)The role of metallurgy in the Copper Age communities of the Iberian Southeast is a recurrent question of archaeological research in western Europe. Based on lead isotope and trace element analyses of archaeometallurgical ... -
Relaciones 87Sr/86Sr de rocas básicas y granitoides del batolito de la Sierra Norte de Sevilla
(Sociedad Geológica de España, 1993)El batolito de la Sierra Norte de Sevilla constituye el afloramiento de rocas plutónicas y subvolcánicas más externo del Macizo Ibérico, intruyendo en materiales metasedimentarios y volcá¬nicos de la Zona Surportuguesa. ... -
Las relaciones centro/periferia en el Valle del Guadalquivir del III milenio ANE : La circulación de hojas de caliza oolítica silicificada
(Universidad de La Laguna: Departamento de Prehistoria, Antropología e Historia Antigua, 2005-12)Este estudio presenta una interpretación, en términos de relaciones centro-periferia, por medio de un análisis petrológico, morfométrico, espacial y contextual de las hojas de caliza oolítica silicificada documentadas ... -
Relaciones de fases del gneis Ollo de Sapo en la región supersólidus y sus implicaciones en la génesis de los leucogranitos peralumínicos de Galicia
(Universidade da Coruña: Instituto Universitario de Geología, 2000-12) -
Rocas plutónicas híbridas y mecanismos de hibridación en el Macizo Ibérico Hercínico
(Instituto Geológico y Minero de España, 1994)Rocas plutónicas híbridas, en las que pueden identificarse componentes corticales y mantéUcos, constituyen gran parte del magmatismo Hercínico del Macizo Ibérico. Las rocas estudiadas en este trabajo proceden de tres ... -
Role of arsenic during the aging of Acid Mine Drainage precipitates
(Elsevier, 2017)Iron-rich sediments cover the riverbeds affected by acid mine drainage (AMD) resulting from sulfide mineral oxidation. Precipitates are mainly composed of schwertmannite, which is a poorly-crystalline Fe-oxyhydroxysulfate ... -
The seismic crustal structure of the Ossa-Morena zone and its geological interpretation
(Universidad Complutense de Madrid, 2004)The IBERSEIS deep reflection seismic experiment has provided a crustal image of the Variscan orogen of southwest Iberia. A brief presentation of the entire seismic profile is given, and then the Ossa-Morena Zone (OMZ) and ... -
Significance of MORB-derived Amphibolites from the Aracena Metamorphic Belt, Southwest Spain
(Oxford University Press, 1996)The Aracena metamorphic belt, in the southwest Iberian Massif, is characterized by the presence of MORB-derived amphibolites and continental rocks deformed and metamorphosed during the Hercynian orogeny. Geochemical ... -
Size distribution and chemical composition of metalliferous stack emissions in the San Roque petroleum refinery complex, southern Spain
(Elsevier, 2011-06)We demonstrate that there is great variation in the size range and chemical composition of metalliferous particulate matter (PM) present within petrochemical complex chimney stacks. Cascade impactor PM samples from seven ...