A deposit of large boulders, interstratified in Pliocene and Pleistocene sediments has been studied in the coast of Cádiz (SW Spain). The deposit is constituted by conchiferous large boulders, medium and small size clasts and shell fragments. The facies indicate a marine origin of the deposit, and the re-worked character of the sediments and fossils, which were deposited in a high energy marine environment, previously to that they were mobilized and re-deposited by action of a high energy directional flow. The most appropriate depositional mechanism to explain the formation of this deposit, is the action of big waves, generated by a great energy marine event, probably a very strong storm or a tsunami. The tsunami action is probable since the area is located in a seismically active area, near to the limit of the African and Euro-Asian plates, at the same that several earthquakes and tsunamis are historically documented in the Cadiz coast. The event should happen during the early Pleistocene, coincident with a highstand stage. The isotopic analysis by means of the Method 87Sr/86Sr carried out, has established an age interval from 1.35 to 1.1 million years, corresponding to the Calabriense (Lower Pleistocene).

Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEpu

Transformaciones urbanas en el barrio de Patraix: setenta años de permanencias y cambios (1944-2014)

[ES] El siguiente trabajo se centra en un estudio cronológico basado tanto en los planos catastrales como en las imágenes correspondientes a las diferentes épocas sobre los cambios producidos en el núcleo poblacional de Patraix para poder diferenciar la huella de los movimientos más importantes que acontecieron al barrio y que podemos observar en la actualidad, ya que han condicionado el trazado y alineaciones urbanas. Para ello hemos dividido el estudio en tres capítulos importantes basados en consecuencias que han configurado el aspecto tanto social como urbano y que además corresponden con los planos catastrales que se han ido realizando. Partimos, por tanto, de finales del siglo XIX, donde Patraix era una de las poblaciones independientes a la ciudad de Valencia junto otros núcleos como fueron Campanar o el Poblats Marítims en los que el principal motor económico era la agricultura. Seguidamente observamos uno de los cambios más importantes para Patraix como fue su proceso de anexión a la ciudad como consecuencia de la llegada de la industrialización y la incorporación de los avances como el ferrocarril o la máquina de vapor y la necesidad albergar a la nueva población trabajadora inmigrante. Y por último, un capítulo dedicado al proceso urbano que sufre Patraix para consolidar su trama y considerarlo uno de los barrios de Valencia, desde los años 70 hasta la actualidad a través de la aprobación de los diferentes Planes de Reforma Interior. Para finalizar analizaremos y citaremos uno de los Planes de Protección del núcleo histórico de Patraix y haremos varias propuestas que tienen su argumento en el estudio anteriormente realizado.[EN] The following work focuses on a chronological study based on the catastral plans and also on the images corresponding to the different periods of changes in the population center of Patraix to differentiate the footprint of the most important movements that occurred in the neighborhood and that we can observe today as they have conditioned the layout and urban alignments. So we've divided the study into three major chapters based on consequences that have shaped the social aspect as both urban and also correspond to the catastral plans that have been made. We start therefore late nineteenth century, when Patraix was one of the independent populations from the city of Valencia with other population center as were Campanar or Poblats Marítims where the main economic activity was agriculture. Then we observe one of the most important changes to Patraix as was the process of annexation to the city as a result of the arrival of industrialization and incorporating advances such as rail or the steam engine and the need to accommodate the new working population immigrant. And finally, a chapter on urban process that suffers Patraix to consolidate its layout and getting the consideration of one of the neighborhoods of Valencia, from the 70's to the present day through the approval of the various Internal Reform Plans. Finally, we will analyze and quote one of the Protection Plans of Patraix's historical population center and make several proposals that have their reasining on the previous study.Más Jaramillo, R. (2017). Transformaciones urbanas en el barrio de Patraix: setenta años de permanencias y cambios (1944-2014). http://hdl.handle.net/10251/102436TFG

The Extensin from Prunus amygdalus

2 pages, 1 figure, 1 table.-- PMID: 16653168 [PubMed].-- PMCID: PMC1075830.Peer reviewe

Hand Tracking and Gesture Recognition for Human-Computer Interaction

The proposed work is part of a project that aims for the control of a videogame based on hand gesture recognition. This goal implies the restriction of real-time response and unconstrained environments. In this paper we present a real-time algorithm to track and recognise hand gestures for interacting with the videogame. This algorithm is based on three main steps: hand segmentation, hand tracking and gesture recognition from hand features. For the hand segmentation step we use the colour cue due to the characteristic colour values of human skin, its invariant properties and its computational simplicity. To prevent errors from hand segmentation we add a second step, hand tracking. Tracking is performed assuming a constant velocity model and using a pixel labeling approach. From the tracking process we extract several hand features that are fed to a finite state classifier which identifies the hand configuration. The hand can be classified into one of the four gesture classes or one of the four different movement directions. Finally, using the system's performance evaluation results we show the usability of the algorithm in a videogame environment

A refraction/wide-angle reflection seismic profile through the Iberian Chain: preliminary report

As a result of the Eurasian and African plates convergence, Tertiary intraplate deformation of the Iberian plate gave rise to the basement-involved thrust-system of the Iberian Chain. Subsequently, a crustal thickening beneath the Iberian Chain was produced, as deduced from Bouguer anomaly maps. A very preliminary interpretation of a new seismic profile through the Iberian Chain is presented, which leads us to infer a crustal thickening beneath the central part of the profile, where Moho depths of at least 40 km should be reached

Litofacies del Plioceno en el registro geológico marino de la Bahía de Cádiz (SW de España): ambientes y procesos

Mediante el estudio sedimentológico de los afloramientos Pliocenos de la costa de Cádiz (SO de España), se ha establecido la tendencia deposicional que caracteriza el relleno sedimentario ost-orogénico en el sector sur de la cuenca del Guadalquivir. Las facies indican variaciones importantes del régimen deposicional, alternando períodos estacionales de calma y tormenta con eventos ocasionales de muy alta energía, caracterizados por el depósito de materiales clásticos y bioclásticos de mayor tamaño. De acuerdo con las características sedimentarias y el contenido fósil, varios tipos de litofacies han sido identificadas. Las arenas, areniscas y calcarenitas muestran características que indican un régimen estacional, mientras que las capas bioclásticas y los depósitos de bloques muestran características completamente distintas a los depósitos intra y suprayacentes, habiendo sido clasificados como depósitos de eventos. También se ha discutido el origen de estos depósitos y los mecanismos deposicionales involucrados en su formación. Tanto las litofacies como el marco tectónico y el registro histórico, indican que estos depósitos fueron generados por eventos oceanográficos de muy alta energía, tales como grandes olas generadas por importantes temporales o tsunamis.Depositional trend that characterized the post-orogenic sedimentary fill in the southern sector of the Guadalquivir Basin has been established by means of sedimentological analysis of Pliocene marine deposits from the Cadiz coast (SW Spain). Lithofacies indicate important variations of depositional regime, alternating calms and storm periods with occasional oceanographic events, which are characterized by the deposition of bioclastic and boulder deposits. According to the features and fossil content, several lithofacies types have been identified, from muddy sands to sandstones, calcarenites, bioclastic accumulations, and large boulder accumulations. Sands, sandstones and calcarenites show features which indicate a seasonal depositional regime, while bioclastic and large boulder beds show different features respect to the over and underlying beds, having been classified as event deposits. The origin of the event deposits and the involved depositional processes is also discussed. Both, lithofacies and tectonic setting are coherent with historical data, and indicate that these deposits were generated by very-high energy oceanographic events, such as major storms or tsunamis.Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEpu

Sedimentary evolution and provenance of the Last Fluvial episodes of the Cameros Basin (Lower Cretaceous, North Spain)

Depto. de Mineralogía y PetrologíaFac. de Ciencias GeológicasTRUEpu

Sedimentología de sucesiones sinrift tempranas en un semigraben marginal de un rift extensional: la Cuenca de Bijuesca, Jurásico superior de la Cordillera Ibérica (Zaragoza, España)

Un estudio sedimentológico detallado de los primeros depósitos continentales sinrift que aparecen en el Semigraben de Bijuesca (Formaciones Ciria y Bijuesca), ha permitido entender la arquitectura estratigráfica de los sedimentos que representan el principio de la extensión en esta estructura. La Fm Bijuesca está formada por sedimentos detríticos organizados en tres asociaciones de facies diferentes (de abanico aluvial proximal, medio y distal). La unidad está constituida por dos secuencias retrogradantes formadas por sedimentos siliciclásticos y carbonáticos procedentes de la erosión del Jurásico marino prerift. Las dos secuencias representan la sedimentación en un sistema aluvial de baja eficacia de transporte. La Fm Ciria está formada por sedimentos carbonáticos lacustres organizados en secuencias elementales de somerización. El predominio de las modificaciones pedogenéticas que afectan a estos sedimentos y la ausencia de facies lacustres profundas permiten clasificar el sistema lacustre como uno con margen de tipo rampa con bajo gradiente y baja energía. Las características de los dos sistemas deposiconales concuerdan con la situación tectónica de los estadios tempranos de un sistema de rift. [ABSTRACT] A detailed sedimentological study of the first synrift continental deposits recorded in the Bijuesca Halfgraben (Bijuesca and Ciria Formations), has allowed to understand the stratigraphic architecture of the sediments which record the beginning of the extension in this structure. The Bijuesca Fm consists of detrital sediments arranged in three different alluvial fan (i.e., proximal, medium and distal) facies associations. This unit is made up by two retrograding sequences that consist of siliciclastics and carbonate detrital deposits eroded from the Jurassic prerift units. These sequences record sedimentation in an alluvial fan system with low-efficiency of transport. The Ciria Fm consists of lacustrine carbonate sediments arranged in shallowing-upwards sequences. The predominance of pedogenic modifications affecting the lacustrine sediments and the absence of deep lacustrine facies, allow classifying this lake system as a low-gradient ramp margin lake with low energy. The characteristics of both depositional systems agree with the tectonic situation supposed for the early stages of a rift system