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Browsing Geogaceta -- Nº 40, (2006) by Issue Date
Now showing items 1-20 of 79
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Sedimentología y caracterización paleoambiental de la serie cretácica inferior de Antromero-Luanco (Asturias)
(Sociedad Geológica de España, 2006)A paleoenvironmental study for a Lower Cretaceuos (Late Barremian-Aptian) succession (Antromero-Luanco section, Asturian coast) is showed in this work based on stratigraphic, sedimentological and paleontological data. ... -
Registro del evento anóxico oceánico OAE1a (Aptiense inferior) en un contexto de plataforma. Prebético (provincia de Alicante)
(Sociedad Geológica de España, 2006)The Early Aptian was a time of major global events, being probably the most notable the Oceanic Anoxic Event 1a. In this paper, we present the study of the record of the OAE1a in a platform setting, the Prebetic Zone of ... -
Tensor actual de esfuerzos y fallas potencialmente activas en el Domo del Tormes (NO de Iberia)
(Sociedad Geológica de España, 2006)Located in the NW of the Iberian Peninsula, the Domo del Tormes is an intra-plate granitic domain made up of a Hercynian megastructure and traditionally considered of very low or null seismicity. The geology of the area ... -
Sedimentos glaciomarinos del Ordovícico terminal en la Zona Cantábrica (NO de España)
(Sociedad Geológica de España, 2006)Preliminary studies of some stratigraphic sections spanning the Ordovician-Silurian boundary in the southern Cantabrian Zone (Iberian Massif, NW Spain) demonstrate the existence of a record of Hirnantian glaciomarine ... -
Un protocolo de tratamiento estadístico para muestras polifásicas de lineaciones de disolución
(Sociedad Geológica de España, 2006)Accurate analysis of orientations of linear elements from polyphase populations involves computing statistics (mean, standard deviation) of each sub-population, which needs previous identification of the polymodal character ... -
Valores de subsidencia reciente (Pioceno-Cuaternario) en el Mar de Alborán mediante análisis de “backstripping”
(Sociedad Geológica de España, 2006)A backstripping analysis is presented for the different scientific ODP wells in the Alboran Sea (Leg 161, Holes 976B, 977A, 978A, and 979A). The study has been performed for the complete Pliocene-to- Quaternary sedimentary ... -
Resistencia a la alteración diagenética de conchas de Chondrodonta sp en las calizas rojas del Aptiense – Albiense inferior de Ereño (Bizkaia)
(Sociedad Geológica de España, 2006)Chondrodonta sp. shells from Aptian – Lower Albian red limestones of Ereño (Bizkaia, northern Spain) have proved to be excellent indicators of a high resistance to the entrance of diagenetic fluids and further diagenetic ... -
Secuencia de cabalgamientos en la Zona Sub-Atlásica y cuenca de Ouarzazate; borde sur del Alto Atlas (Marruecos)
(Sociedad Geológica de España, 2006)The Sub-Atlas thrust belt and Ouarzazate basin constitutes the best and almost the unique synorogenic record of the Atlas mountain building. During the Eocene and Oligocene the deformation was concentred in the distant ... -
Biometría de Strombus bubonius Lamark 1791 del yacimiento de Cerro Largo (Roquetas de Mar, Almería)
(2006)This paper deals with a comparative metrical study of the mesogastropods Strombus bubonius and Strombus latus. The former from the raised marine deposits of Cerro Largo (Roquetas de Mar, Almería) of Middle Pleistocene ... -
Variaciones en las faunas de foraminíferos bentónicos del Mar de Alborán durante el evento Heinrich 6
(Sociedad Geológica de España, 2006)Heinrich events are cold periods during which icebergs discharge took place in the North Atlantic Ocean. Those cold events modified both the surface water temperature and the North Atlantic deep water formation, thus ... -
Cartografia geoambiental aplicada a la gestion de residuos del Espacio Natural Protegido «Las Batuecas – Sierra de Francia». (Salamanca-España)
(2006)The human activity generate waste that finally go to controllable and uncontrollable landfill. In this case, the emplacement of uncontrollable landfill is analized with parameters of environmental geology, using thematics ... -
Neotectónica en el norte de Galicia: Fallas inversas de actividad cuaternaria en la cuenca fluvial del alveolo de Alfoz, Lugo
(2006)In the weathered depression developed on the A Toxiza variscan granite (northern Galicia) two high angle reverse faults have been located putting the granitic basement over pleistocene fluvial deposits. Several inferred ... -
Hallazgo de un fósil silúrico en los depósitos auríferos cenozoicos de la mina romana de Las Médulas (León, NO de España)
(2006)A Silurian fossil has been collected from sandstone pebbles in the red Cenozoic deposits of the famous Roman gold-mine of Las Médulas. It consists on an articulated shell of the cardiolid bivalve Cardiola gibbosa Barrande, ... -
Ultramilonitas de apariencia fluidal, pseudotaquilitas o algo intermedio? (Formación Bacariza, Cabo Ortegal)
(Sociedad Geológica de España, 2006)Occurrence of tectonites with features characteristic of both pseudotachylytes and ultramylonites formed under high-pressure granulite-facies conditions is reported in the Cabo Ortegal Complex of NW Spain. We interpret ... -
Geoquímica de las micas blancas detríticas de las rocas ediacarenses y cámbricas del Antiforme del Narcea (NO España)
(2006)Detrital minerals provenance studies have become a common tool to decipher paleogeographic scenarios in many orogenic belts. Together with the geochronological single mineral dating, the geochemistry of detrital minerals ... -
Propuesta de clasificación geotécnica del “Efecto Sitio” (Amplificación Sísmica) de las formaciones geológicas de la Región de Murcia
(Sociedad Geológica de España, 2006)In this paper a geotechnical-siesmic amplification classification based on geological data is proposed for the Murcia region, (SE Spain). The structural damages caused during earthquake are controlled by local geological ... -
Análisis bioestratigráfico del Eoceno Inferior de la sección de Barinatxe (Pirineos Occidentales) mediante nanofósiles calcáreos
(2006)The Barinatxe section (Western Pyrenees) contains one of the most complete and expanded deep-water succession of the early Eocene so far described. The succession, cropped out continuously along sea cliffs, is rich in ... -
El Monasterio de Raíces (Castrillón, Asturias): Estudio Petrográfico de los materiales de construcción
(2006)This work synthesizes the data collected in the analysis of the petreal materials used in construction of the Monastery of Santa María de Raíces in Asturias. The most probable area of origin of those is show with the purpose ... -
Cronoestratigrafía de los registros aluviales del tránsito Pleistoceno superior-Holoceno en la depresión de la Bardena Blanca (Navarra)
(2006)In this work, preliminary chronostratigaphic features of the Upper Pleistocene-Holocene morphosedimentary alluvial unit covering the bottom of the Bardena Blanca depression are described. This unit is made up by 1) gravels ... -
Comparación de métodos de interpolación para la realización de mapas de precipitación para el acuífero de Icod-Cañadas (Tenerife, Islas Canarias)
(2006)Groundwater is the main water resource in Tenerife (Canary Islands) where it represents almost 90% of the consumption. For the Insular Hydrological Plan the most important aquifer in the future will be the one located in ...
