La mujer de Segovia

Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2009-201

Depositional style and tectonostratigraphic evolution of El Bierzo Tertiary sub-basin (Pyrenean orogen, NW Spain)

El Bierzo Tertiary sub-basin (Oligocene-Miocene, NW Spain) is a small remnant of the western Duero Basin, a nonmarine broken foreland basin developed in front of the Cantabrian Mountains (Pyrenean orogen). The alluvial infill of El Bierzo Tertiary sub-basin consists of a coarsening-upward succession from fluvial (Toral Formation) to alluvial-fan deposits (Las Médulas Formation) and reflects the uplift of the Cantabrian Mountains, in the north, and then of the related Galaico-Leoneses Mountains, in the south. These alluvial deposits show signs of having been laid down mainly by catastrophic flows (flood-dominated systems) and consist of three main depositional elements, namely, flood-plain fines, and lobe and channel conglomerates and sandstones. The vertical stacking patterns of these deposits and their relationships to the Alpine structures permit to unravel the tectonosedimentary evolution of the basin. The alluvial-plain element is the main constituent of a wide unconfined alluvial plain (Toral Formation) during the early stages of basin evolution, whereas the channel and lobe elements form a set of relatively small, laterally confined alluvial fans (Las Médulas Formation) fed first from the north and then from the south. Las Médulas deposits form two superposed units, the lower unit, cut by the Alpine thrusts, shows a progradational character, and the upper unit, which postdates most of the thrusts but not the youngest ones, displays a composite retrogradational trend. This organisation reflects the interplay between thrust emplacement and alluvial-fan sedimentation and suggests that maximum progradation took place during the climax of Alpine deformation

Depositional style and tectonostratigraphic evolution of El Bierzo Tertiary sub-basin (Pyrenean orogen, NW Spain)

El Bierzo Tertiary sub-basin (Oligocene-Miocene, NW Spain) is a small remnant of the western Duero Basin, a nonmarine broken foreland basin developed in front of the Cantabrian Mountains (Pyrenean orogen). The alluvial infill of El Bierzo Tertiary sub-basin consists of a coarsening-upward succession from fluvial (Toral Formation) to alluvial-fan deposits (Las Médulas Formation) and reflects the uplift of the Cantabrian Mountains, in the north, and then of the related Galaico-Leoneses Mountains, in the south. These alluvial deposits show signs of having been laid down mainly by catastrophic flows (flood-dominated systems) and consist of three main depositional elements, namely, flood-plain fines, and lobe and channel conglomerates and sandstones. The vertical stacking patterns of these deposits and their relationships to the Alpine structures permit to unravel the tectonosedimentary evolution of the basin. The alluvial-plain element is the main constituent of a wide unconfined alluvial plain (Toral Formation) during the early stages of basin evolution, whereas the channel and lobe elements form a set of relatively small, laterally confined alluvial fans (Las Médulas Formation) fed first from the north and then from the south. Las Médulas deposits form two superposed units, the lower unit, cut by the Alpine thrusts, shows a progradational character, and the upper unit, which postdates most of the thrusts but not the youngest ones, displays a composite retrogradational trend. This organisation reflects the interplay between thrust emplacement and alluvial-fan sedimentation and suggests that maximum progradation took place during the climax of Alpine deformation

Diccionario de las lenguas española y francesa comparadas

Tít. de los t.III y IV: Dictionnaire des langues espagnole & française comparèes.Contiene la significación de todas las palabras de ambas lenguas -- Las voces anticuadas y los neologismos -- Las etimologías -- Los términos de ciencias, artes y oficios -- Las frases, proverbios, refranes, idiotismos y el uso familiar de las voces -- Y la pronunciación figurad

Anuario histórico-crítico de 1892

Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 201

Anuario histórico-crítico de 1891

Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 201

Capacity of center pivot systems and emitter discharges for citrus irrigation. A case study

Introduction: Given the reduction in water resources, irrigation should be carried out with the highest application efficiency. Irrigation pivots achieve application efficiencies close to localized systems; however, for citrus irrigation, the equations available for its design and management do not contribute to the efficient and rational use of water. Objective: Adapt the expression of the capacity of the machine and propose a new formulation for the discharge of the emitters, to adequately describe the operation of the central pivots for citrus irrigation. Method: Logical research methods were used and within these, the historical method and the deductive logic, to obtain the adequacy and the new equations presented. Results: The expression of the a coefficient was obtained to adapt the expression of the capacity of the machine and two new equations to calculate the necessary discharges of the emitters. They were applied to a case study. Conclusions: It was confirmed that the center pivot machines to irrigate citrus obtain water consumption and application efficiency comparable could with localized irrigation systems.Introducción: Dada la reducción de los recursos hídricos el riego se deberá realizar con la mayor eficiencia de aplicación. Los pivotes de riego alcanzan eficiencias de aplicación cercanas a los sistemas localizados; sin embargo, para el riego de cítricos, las ecuaciones disponibles para su diseño y manejo no contribuyen con el uso eficiente y racional del agua. Objetivo: Adecuar la expresión de la capacidad de la máquina y proponer una nueva formulación para las descargas de los emisores, para describir adecuadamente el funcionamiento de los pivotes centrales para el riego de cítricos. Metodología: Se emplearon métodos lógicos de investigación y dentro de estos, el método histórico y el lógico deductivo, para la obtención de la adecuación y las nuevas ecuaciones presentadas. Resultados: Se obtuvieron la expresión del coeficiente a para adecuar la expresión de la capacidad de la máquina y dos nuevas ecuaciones para calcular las descargas necesarias de los emisores. Se aplicaron a un caso de estudio. Conclusiones: Se confirmó que con las máquinas de pivote central para el riego de los cítricos se pudieran obtener consumo de agua y eficiencia de aplicación, comparables con los sistemas de riego localizado

On the detectability of Teide volcano magma chambers (Tenerife, Canary Islands) with magnetotelluric data

Tenerife has been the subject of numerous studies covering a wide range of fields. Many studies have been focused on characterising the magmatic plumbing system. Even so, a controversy still exists regarding the location and size of the current magma chambers. Several magnetotelluric (MT) surveys have been carried out in the island, but no conductivity anomalies associated with the chambers have been detected. We report the results of a set of tests conducted against the 3-D resistivity model of the island, to determine the characteristics of the detectable chambers with the MT data. The most remarkable results indicate that the MT dataset is incompatible with a large-scale mafic reservoir located at shallower depths than 8 km b.s.l. However, shallower phonolitic chambers smaller than 3 x 3 x 1 km(3) could be undetected by the existing MT sites and new data should be acquired to confirm or not their existence. This new information is essential in volcanic islands like Tenerife, since many volcanic hazards are related to the size and depth of the sources of magma. Additionally, a joint interpretation of the obtained results together with other information is summarised in a hypothetical model, allowing us to better understand the internal structure of the island

Milkability and milking efficiency improvement in Murciano-Granadina breed goats

[EN] The aim of this study was to verify the effect of cluster, udder characteristics and milking parameters on milkability and milking efficiency of Murciano-Granadina breed goats, in order to improve them. The cluster used is well adapted to the goats, except that the teat-floor distance is too short for the teat-cup used and the cluster rests on the platform instead of hanging from the udder, something apparently attributed to a poor udder conformation rather than an excessively-long teat-cup. Udder parameters studied are classified as medium or medium-high by the Murciano-Granadina breed association, and do not seem to represent a problem for good milkability except for the teat sphincter strength, which reduced milk flows (P<0.001) and increased milking times (P<0.001). Maintaining 60% as pulsator ratio, a combination 42 kPa:120 ppm (vacuum level:pulsator rate) milking parameters reduced total milking time by 22 s per goat compared to 40 kPa:90 ppm, commonly used in this flock, but increased teat thickness measured before and after milking. Studies of longer duration are needed to ensure that the new Milking parameters do not affect the udder health status. (C) 2015 Elsevier B.V. All rights reserved.Fernández Martínez, N.; Martínez, A.; Martí Vicent, JV.; Rodríguez Garcia, M.; Peris Ribera, CJ. (2015). Milkability and milking efficiency improvement in Murciano-Granadina breed goats. Small Ruminant Research. 126:68-72. doi:10.1016/j.smallrumres.2015.03.001S687212