Thesis Collection
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Browsing Geogaceta -- Nº 41, (2006) by Issue Date
Now showing items 1-20 of 63
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U-Pb dating of Siluro-Ordovician volcanism in the Verín Synform (Orense; Schistose Domain, Galicia-Trás-os-Montes Zone)
(2006)El Grupo Paraño constituye la parte más alta de la estratigrafía del Dominio Esquistoso de Galicia-Trásos- Montes y está expuesto en el núcleo de la Sinforma de Verín. Como al resto del dominio, a este grupo se le ha ... -
Some misleading boudin-like structures
(2006)Las estructuras de boudinage son indicadoras de extensión paralela a las capas. Sin embargo, existen estructuras que poseen un alto grado de similitud con los boudins pero cuyo origen no está relacionado con un estiramiento ... -
Las facies evaporíticas y carbonatadas del tránsito Triásico-Jurásico (Morata de Jalón, Zaragoza): relación tectónica-sedimentación
(2006)Facies analysis and geological mapping of the Triassic-Jurassic transition units (Cor tes de Tajuña and Lécera Fms) exposed in an area of 10 km2 around Morata de Jalón locality (Zaragoza province, North Iberian Range) ... -
Estructura del prodelta de la Tordera (costa del Maresme, NO Mediterráneo) a partir del análisis sísmico de alta resolución
(2006)Tordera delta is feeded by sediments from the granitic Catalan Coastal Range System giving a coarse grain and arkosic sedimentar y facies. Sediment input to the coastal system was up to 200.000 m3/y as deduced from shelf ... -
Evolución morfosedimentaria del sistema aluvial de Valsalada (Leciñena, Los Monegros) durante el Pleistoceno superior-Holoceno: aproximación paleoambiental
(2006)A first approach to the palaeoenvironmental significance of the Valsalada (Central Ebro basin) alluvial record, Upper Pleistocene-Holocene in age, is presented starting from geomorhological, sedimentological and radiocarbon ... -
Cuantificación de la porosidad en Areniscas mediante análisis digital de imágenes
(2006)The aim of this research was the characterization of the porous system and pore size distribution by both polarisation optical microscopy and scanning electron microscopy using digital image processing. The three stones ... -
Modelo analítico para estimar la deformación mediante el uso de shear bands
(2006)Shear bands are geologic structures widely used as kinematic indicators. They have been studied by different authors and recently classified, but they have not been used to analyze deformation. This work presents ... -
Evolución metamórfica de las kinzigitas en facies granulita del macizo del Aglí
(2006)In the Agly massif outcrops one of the deepest parts of the Hercynian crust. Its basement is constituted by a monotonous pile of paragneisses and anatectic migmatites which presents numerous intercalations of kinzigites, ... -
Primeras evidencias de paleoterremotos en la falla de Carboneras: estudio paleosismológico en el segmento de La Serrata
(2006)A paleoseismological analysis was performed along the La Serrata segment of the Carboneras fault (Eastern Betics) in order to establish its seismic potential. The site was selected after a general geomorphological analysis ... -
Fallas de salto en dirección en el Haouz meridional (Complejo de la Dorsal, Rif interno, N de Tetuán, Marruecos). Comparación con las Béticas (España)
(2006)Different sets of strike-slip faults of the Haouz Mountains (from Tetouan to the strait of Gibraltar) deform the tectonic slices of the Calcareous Dorsal there present. In this paper we study those faults at the southern ... -
Presencia de Scapanorhynchus raphyodon (Agassiz), en el Turoniense Inferior de Picofrentes (Cordillera Ibérica septentrional, Soria, España)
(2006)Picofrentes is one of the most important reference sections for the Cenomanian -Turonian, in the Northern Iberian R ange, characterized by the presence of an abundant marine fossil content, notably ammonites. A single, ... -
Validez e interpretación de los datos geotermométricos de los esquistos cloríticos con circón en las peridotitas de Ronda (Cordilleras Béticas)
(2006)This work reports the most precise geochemical compositions and geothermometric calculations of zirconbearing chlorite schists located at the south-western part of the Sierra Bermeja peridotite massif. The combination ... -
Presencia de la icnoespecie Dactyloidites ottoi en el complejo de abanico costero de Sant Llorenç del Munt (Eoceno, Cuenca del Ebro, NE de España)
(2006)The presence of Dactyloidites ottoi is first recorded in the Eocene Sant Llorenç del Munt fan-delta complex. This constitutes the first citation for the Paleogene. The ichnospecies occurs in the lower part of a ... -
Vertebrados del yacimiento Holoceno de Kobeaga II (Ispaster, Bizkaia)
(2006)In this paper the faunistic sample, the stratigraphy and the chronology of the archaeological site of Kobeaga II cave (Ispaster, Bizkaia) is described. The five Classes of vertebrates are represented in this site, where, the ... -
Elaboración de un SIG del volcanismo holoceno de Gran Canaria (Islas Canarias). Ejemplo del volcán de El Draguillo
(2006)The Geographical Information Systems (GIS) represent a power ful tool in many scientific fields, included the volcanology. The present work shows its application to the Holocene volcanism of Gran Canaria (Canary Islands) ... -
Relación entre composición de areniscas y procedencia. Casos de estudio en areniscas paleozoicas de la Zona Surportuguesa
Two different types of Upper Paleozoic sandstones from Southportuguese Zone are studied. Data coming from petrographic, sedimentological and regional analyses of the sandstones point to two different anomalies in relation ... -
Evolución sedimentaria y estructural del Cretácico inferior en el sector Benicàssim-Orpesa, Cadena Ibérica oriental
(2006)The Penyagolosa sub-basin is located in the south-eastern margin of Maestrat basin. Its structure is characterized by a system of listric faults NE-SW to ENE-WSW. These faults record two well differentiated periods of ... -
Control estructural del Batolito de Tastil (Salta, Argentina) en el desarrollo de cabalgamientos andinos
(2006)This work deals with the structure of the Lower Cambrian batholith of Tastil (Salta, NW Argentina) and its influence on the development of younger Andean structures. Anisotropy of magnetic susceptibility data reveal a ... -
Procedencia de los materiales terrígenos finos del Paleógeno continental, zona de Vic, NE España
(2006)In the Vic area, the non-marine Palaeogene clastic materials are arranged in two successive lithostratigraphic formations: the lower, Vilanova de Sau (VS) mainly composed of lutites and some channels of sandstones, and ... -
Aplicación del método DRASTIC para evaluar la vulnerabilidad a la contaminación del acuífero de Oued Laou (Marruecos)
Salhi, A.; Stitou el Messari, Jamal; Mahfoud, A.; Himi, Mahjoub; Casas Sainz, Antonio; Pulido Bosch, Antonio; Cerón García, Juan Carlos
; Draoui, M. (2006)
The Oued Laou alluvial aquifer is one of the most important groundwater bodies in the northwest of Morocco. However, during the last few years this aquifer has been threatened by several pollution sources that have ...
