Thesis Collection
Last Deposit
Geogaceta -- Nº 27, (1999)
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Recent Submissions
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Wave-induced cross-shore sediment transport in the Ebro delta inner shelf
(Sociedad Geológica de España, 1999)The near-bottom wave-induced cross-shelf sediment transport is one of the main mechanisms to maintain morphologically inner shelves. In opposition to suspended sediment transport by currents that controls fine sediment ... -
Variaciones de turbidez de las aguas de la bahía de Cádiz determinadas a partir del análisis de imágenes Landsat TM
(Sociedad Geológica de España, 1999)Landsat TM images has been analysed to obtain extent and direction data about turbidity flumes in several hydrodinamic sinoptic situations in Cadiz bay waters. Results are beside data from water samples. Five turbidity ... -
Transición dúctil-frágil en la corteza de la zona central de la Península Ibérica
(Sociedad Geológica de España, 1999)Brittle-ductile transition is estimated on the basis of pore-pressure dependent frictional failure in the brittle regime, and power-law steady-state creep in the ductile regime. Structure and lithological composition of ... -
The intrusion of the Plasencia (Messejana) dike as part of the Circum-Atlantic Early Jurassic magmatism: Tectonic implications in the southwestern Iberian peninsula
(Sociedad Geológica de España, 1999)The Plasencia dike belongs to a vast Early Jurassic magmatic province that extends around the Central Atlantic. The origin of this magmatic event is related to a thermal anomaly at the base of the lithosphere, and its age ... -
Superposición de estructuras corticales en la región de Archidona a partir de datos geofísicos (Zonas Externas de las Cordilleras Béticas)
(Sociedad Geológica de España, 1999)The region located at the NE of Archidona shows a maximum of aeromagnetic anomaly up to + 70 nT. This region, however, has minimum values of Bouguer anomaly (-120 mCal). New magnetic and gravimetric data and a P-wave seismic ... -
Sobre la contaminación de las aguas del estuario de los ríos Tinto y Odiel (Huelva)
Cerón García, Juan Carlos
; Borrego Flores, José; Morales González, Juan Antonio (Sociedad Geológica de España, 1999)
The waters of the Huelva Estuary are polluted because of indiscriminate dumping of urban effluents. The nutrient contents of samples taken at the surface and from the bottom of the estuary were analysed to characterise the ... -
Sedimentologia y paleogeografía de la secuencia de deposito Aptiense inferior (Facies Urgón) en la subcuenca de Las Parras. (Teruel)
(Sociedad Geológica de España, 1999)The Lower Aptian D.S. is made up of materials which settled in shallow carbonate ramp enviroments. This sequence shows a retrogradational evolution, that is, from internal to mid ramp enviroments. The vertical evolution ... -
Propagación de la onda de marea en el Estuario del Río Tinto (Huelva, España)
Morales González, Juan Antonio; Borrego Flores, José (Sociedad Geológica de España, 1999)
The Tinto River Estuary, located at the central sector of the Huelva Coast is a mesotidal estuary, where the mean tidal range is two meters. Tinto river has small mean discharges (100.48 Hm3) but it is strongly seasonal. ... -
Plataformas carbonatadas aisladas (guyots) en el Jurásico del Subbético
(Sociedad Geológica de España, 1999)In a sector of the Southern Iberian Continental Margin (in the Median Subbetic) isolated carbonate platforms developed over volcanic edifices, forming guyots, during the middle Jurassic. In these platforms, the sedimentation ... -
Patrón de presentación de morfologías intermareales en dos playas expuestas de la Bahía de Cádiz
(Sociedad Geológica de España, 1999)The paper compares the ocurrence patterns of intertidal morphologies across two exposed beaches in the Bay ofCâdiz: Vistahermosa beach, in the south, and La Barrosa beach, in the north. Topographic profiles over a complete ... -
Palaeoenvironmental reconstruction based on a detailed stable isotope analysis and dating of a Holocene speleothem from Valporquero Cave, Northern Spain
(Sociedad Geológica de España, 1999)Ages of ca. 8170 and 7180 BP have been established through a Th/U dating for the base and the top, respectively, of a speleothem collected inside Valporquero Cave (Cantabrian Zone, northern Iberian Peninsula). Three series ... -
Paleobiocenosis de Heterostegina en sedimentos de origen litoral de la Fm. Calcarenita de Niebla (Mioceno superior, Cuenca del Guadalquivir, SO España)
Tosquella Angrill, Josep; Baceta, Juan Ignacio; González-Regalado Montero, María Luz; Ruiz Muñoz, Francisco (Sociedad Geológica de España, 1999)
A taphonomic analysis of some lumaquellic levels of Heterostegina interbedded in the basal sandy unit of the Calcarenita de Niebla Fm. (Huelva, Spain) is presented. However, it is made a revision of the main factors that ... -
Los ostrácodos infralitorales y circalitorales actuales del norte del Golfo de Cádiz
Ruiz Muñoz, Francisco; González-Regalado Montero, María Luz; Baceta, Juan Ignacio; Pendón Martín, José Gabriel; Hernández Molina, F. Javier; Somoza, L.; Díaz del Río, Víctor (Sociedad Geológica de España, 1999)
The study of the ostracod distribution in the inner part of the Spanish continental she/fallows to recognize the presence of a zonation which reflects changes in both depth and substrate. Four assemblages may be distinguished: ... -
Revisión taxonómica de "Echinosphaerites" murchisoni Verneuil y Barrande, 1855 (Echinodermata, Diploporita) del Ordovícico Medio centroibérico (España)
(Sociedad Geológica de España, 1999)The holotype of''Echinosphaerites'' murchisoni Verneuil and Barrande 1855 is reviewed, and proposed as the type species of Oretanocalix gen. nov. The new genus is characterised by an elongate theca of medium size, that ... -
Resuspensión de sedimento en la plataforma interna del delta del Ebro
(Sociedad Geológica de España, 1999)This study deals with the resuspension processes in the inner shelf of the Ebro delta using field measurements of hydrodynamics and suspended sediment distribution in the water column. Two instrumented tripods were ... -
Los ostrácodos de la cuenca del Lido (Laguna de Venecia, NF Italia)
Ruiz Muñoz, Francisco; González-Regalado Montero, María Luz; Menegazzo, L.; Rampazzo, G.; Pistolato, M.; Molinaroli, E. (Sociedad Geológica de España, 1999)
The ostracofaune of the Lido basin (Venice lagoon) is dominated by Cyprideis torosa, with the presence of Loxoconcha elliptica in zones drained by industrial and agricultural waters and Xestoleberis if the energy is very ... -
Los depósitos transgresivos flandrienses de la plataforma continental del Golfo de Cádiz
(Sociedad Geológica de España, 1999)The analysis and interpretation of high-resolution seismic profiles collected in a sector of the Gulf of Cadiz continental shelf hve been used as a basis to characterise the Flandrian transgressive deposits developed after ... -
Los depósitos terrigenos de la base de la secuencia de depósito Aptiense superior. Subcuenca de las Las Parras (provincia de Teruel)
(Sociedad Geológica de España, 1999)The bottom ofVillarroya de los Pinares formation, that is, the bottom of Upper Aptian D.S., is made up of terrigenous sediments. These materials show a retrogradational vertical evolution. This evolution started with fluvial ... -
La cuña progradante infralitoral del Holoceno Superior de Faro-Tavira
(Sociedad Geológica de España, 1999)A very good example of a progradational sedimentary body, the Infralittoral Prograding Wedge (IPW) has been characterized in the Algarve continental shelf developing below the storm wave base between the onshore (beach) ... -
Interpretación combinada de los datos geológicos y gravimétricos del sector central de Extremadura: aplicación a la exploración de yacimientos minerales
(Sociedad Geológica de España, 1999)As a result of the combined interpretation of a gravity study, geological mapping and the lineament analysis of TM Landsat Imagery from the central sector of Extremadura region (Western of Spain), a series of units delimited ...
