Browsing Geogaceta -- Nº 40, (2006) by Issue Date
Now showing items 1-20 of 79
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Estudio petrológico y geoquímico de las vulcanitas de los afloramientos de El Pimpollar, extremo nororiental de la Zona Surportuguesa
(2006)The Lower Unit of “El Pimpollar” volcanic outcrop (South-Portuguese Zone) is mainly composed of submarine dacites and andesites, with some subordinate basalts and trachyandesites. All these volcanic materials have ... -
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 ... -
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 ... -
Primeras icnitas de dinosaurio en sur del Alto Atlas Central. Carixiense (Formación de Arhbalou. Goulmima. Marruecos)
(Sociedad Geológica de España, 2006)The first found tracks of dinosaur in the North of the Goulmima-Tinerhir line (Inner Haut Atlas Central, Morocco) are described. They are located in the Arhbalou Formation and come from isolated and grouped prints mainly ... -
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 ... -
Nueva localidad fosilífera en el Mioceno Inferior de Bargota (Navarra) (Cuenca del Ebro, Península Ibérica)
(2006)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 ... -
Geochemistry of alkaline basalts of Corvo Island (Azores, Portugal): preliminary data
(2006)El vulcanismo de la isla do Corvo (Azores Occidentales, Portugal) comprende diversos episodios eruptivos, desde 1.5 a 1.0 Ma. Los líquidos son mayoritariamente basaltos con una composición modal de olivino, Ti-augita, ... -
La transversal de Gavarnie-Guara. Estructura y edad de los mantos de Gavarnie, Guara-Gèdre y Guarga (Pirineo centro-occidental)
(2006)The structure of the eastern extreme of the Jaca Basin is defined by the Gavarnie, Guara-Gèdre and Guarga thrust sheets. The Guara-Gèdre thrust was active during mid Luttetian-earliest Chattian and the Gavarnie thrust, ... -
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 ... -
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 ... -
Clasificación geomecánica de macizos pizarrosos en el sinclinal de Truchas
(2006)Rock mass characterization and classification are significant in geological investigations involving engineering works and in the field of applied geology. Discontinuities characterization and rock properties determination are ... -
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 ... -
El Edificio Antiguo de la isla de San Vicente (Cabo Verde): características del sector occidental
(2006)A more than 1000m thick pile of basaltic lava flows and pyroclasts dipping seawards rises on the western sector of San Vicente. Several systems of dikes cut across the succession that is composed of two different sequences. ... -
Tafonomía cuantitativa del yacimiento de Cacela (Tortoniense superior; Algarve, Sur de Portugal)
(Sociedad Geológica de España, 2006)A quantitative taphonomic analysis were performed in the fossil assemblages of the late Tortonian of the lower-mid part of the Cacela Formation (Cacela, Algarve, S Portugal). Taphonomic results, together with sedimentological ... -
Situación medioambiental de la marisma Joyel (Cantabria): datos aportados por los foraminíferos bentónicos
(Sociedad Geológica de España, 2006)A total of sixty nine species of benthic foraminifers have been identified in the Joyel-Ria of Quejo marsh (Cantabria, N Spain). Fifty six of those species had living individuals in the time of sampling. Main foraminife ... -
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 ... -
Secuencia de emplazamiento, alteración hidrotermal y metamorfismo en el Complejo Intrusivo de Jörn, distrito minero de Skellefte, norte de Suecia
(Sociedad Geológica de España, 2006)The Skellefte district is one of the most important mining districts in Sweden, located in an early Proterozoic (1.90-1.87Ga) volcanic arc province in the Baltic Shield, northern Sweden. The district consists of a ... -
Alteración diagenética en conchas de rudistas Monopleúridos del Complejo Urgoniano de Ereño (Aptiense – Albiense Inferior, Bizkaia)
(2006)Cathodoluminescence and microprobe analysis in monopleurid shells from Aptian – Lower Albian limestones in Ereño (Bizkaia) has allowed to us to realize that different rudist shells show different diagenetic responses in ... -
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 ... -
La Unidad Inferior e Intermedia de la Cuenca de Madrid en el valle del Henares (Provincia de Guadalajara)
(2006)The northeastern sector of the Madrid Basin shows a substantial succession of miocene materials that culminate with the so-called «páramo limestones». The purpose of this study is the identification and characterization ...