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Browsing Geogaceta -- Nº 40, (2006) by Issue Date
Now showing items 1-20 of 79
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Distribución areal y ecología de las asociaciones de ostrácodos recientes en la marisma Joyel (Cantabria)
(2006)Recent ostracod assemblages of the Joyel marsh (Cantabria, N Spain) are described. Eigteen species are living in this marsh. The strongly eurihaline species Loxoconcha elliptica dominates the assemblages in the most of ... -
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 ... -
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 ... -
Secuencia de emplazamiento, alteración hidrotermal y metamorfismo en el Complejo Intrusivo de Jörn, distrito minero de Skellefte, norte de Suecia
González Roldán, Manuel Jesús; Allen, Rodney L.; Donaire Romero, Teodosio
; Pascual Martínez, Emilio (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 ... -
Estructura interna del batolito granítico de Nisa-Alburquerque
(2006)The Late Variscan Nisa-Alburquerque batholith (SW-Iberian Peninsula) is located close to the boundary between two major geologic domains of the Iberian Massif: the Central Iberian Zone and the Ossa-Morena Zone. This ... -
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 ... -
Contribución del estudio estructural del enjambre de diques básicos del Precámbrico del Anti-Atlas al conocimiento de su significación geotectónica en la orogenia panafricana
(2006)The Precambrian inliers in the Anti-Atlas of Morocco are extensively intruded by swarms of dolerite dykes. On the basis of detail analysis of foliation patterns around dykes from Kerdous and Zenaga inliers it is inferred ... -
Estructura del granito de Beariz (Ourense, Galicia)
(2006)The geological map, cross-sections and structural analysis of the Beariz granite are presented. The Geometric and structural characteristics of this intrusive body are in good agreement with a sinkynematic emplacement within ... -
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, ... -
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 ... -
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 ... -
Tasas de erosión en la cuenca de Guadix-Baza durante el Pleistoceno superior - Holoceno
(Sociedad Geológica de España, 2006)Erosion rates in the Guadix-Baza basin have been calculated drawing on a volumetric estimation of sediment loss by river erosion since the late Pleistocene. On this purpose we have perform a reconstruction of the geometrical ... -
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 ... -
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 Deslizamiento de Güevéjar (provincia de Granada): un caso de inestabilidad de laderas inducida por sismos
(2006)Drawing on historical documents and a detailed field study, we have been able to characterize the Güevéjar landslide as a complex landmass movement with a dominant multi-rotational component. The landslide body is made ... -
Estudio osteométrico preliminar de los restos de ciervo (Cervus elaphus) del yacimiento paleontológico del Pleistoceno Superior de Kiputz IX (Mutriku, Gipuzkoa)
(2006)This work provides the first news about the recovered fauna from the Late Pleistocene site of Kiputz IX (Mutriku, Gipuzkoa). It describes the site stratigraphy as well as the preliminary listing of the identified fauna ... -
Estructuras sedimentarias de deformación interpretadas como sismitas en el Mioceno Superior (Turoliense) de la cuenca de Granada (Cordillera Bética)
(2006)We studied various Upper Miocene (Turolian) layers of superimposed soft-sediment deformation structures induced by liquefaction in the Granada basin (Betic Cordillera). These are principally load structures: sagging and ...
