Colección de Tesis doctorales
Últimos Depósitos
Geogaceta -- Nº 40, (2006)
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Variación estacional de los contenidos en carbono orgánico, inorgánico y azufre en los sedimentos del estuario de los ríos Tinto y Odiel (SO España)
López González, Nieves
; Borrego Flores, José; Morales González, Juan Antonio; Carro Flores, Berta (Sociedad Geológica de España, 2006)
The study of 12 sediment traps located in the Tinto and Odiel river estuary show the influence of the acid contributions in the seasonal variation of the contents in organic carbon, inorganic carbon and sulfur. The seasonal ... -
Variación estacional de las características texturales en los sedimentos intermareales del estuario de los ríos Tinto y Odiel (SO España)
López González, Nieves; Morales González, Juan Antonio; Borrego Flores, José; Carro Flores, Berta (Sociedad Geológica de España, 2006)
The seasonal evolution in the sediment textural characteristics along the Tinto and Odiel river estuaries has been studied by means of 12 sediment traps. The fine-grained material is associated with flocculation and ... -
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 ... -
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 ... -
Sucesión de secuencias volcánicas félsicas en el Complejo Vulcanosedimentario de la Faja Pirítica Ibérica: discriminación entre modelos volcánicos y subvolcánicos
Donaire Romero, Teodosio; Pascual Martínez, Emilio; Valenzuela Aznar, Alfonso; González Roldán, Manuel Jesús; Toscano Macías, Manuel (Sociedad Geológica de España, 2006)
A field study is presented on two selected areas in the Volcano-Sedimentary Complex (VSC) of the Iberian Pyrite Belt (IPB), the Odiel River section and the Paymogo Volcanic lineament. Field evidence has allowed to ... -
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 ... -
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 ... -
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. ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Resultados y experiencias de aplicación del método de Refracción por Microtremor (Sísmica Pasiva) para la investigación geofísica de las nuevas líneas de metro en Madrid (España)
(Sociedad Geológica de España, 2006)Geophysical exploration with seismic methods in urban zones presents several disadvantages: the presence of numerous sources of seismic noise, the scanty penetration when the seismic source is a hammer and the disability ... -
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 ... -
Procesos neotectónicos en los depósitos de rasa de la zona de Canero (Occidente de Asturias)
(Sociedad Geológica de España, 2006)The Pleistocene sediments deposited on the emerged marine abrasion platform near Canero village (Valdés, Asturias) are truncated by reverse faults which are parallel to basement bedding. These structures imply a neotectonic ... -
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 ... -
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 ...