17 research outputs found

    Recent tectonic effects in the Campo de Calatrava deduced from the paleomagnetic data of the neogene volcanism

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    The Campo de Calatrava region shows some effects of the recent tectonics related to origin of the Betic orogen. Some of the effect recognizable at Campo de Calatrava was: vertical blocks movements leading to depressions where neogene sediments began to deposit giving rise to the tertiary basins located in the center of the Ciudad Real province. The neotectonic also has influenced in the distribution of the volcanism, which appears aligned with the main structures activity. The analysis of the variations of the magnetic declination of some of existing volcanoes allows detect the block rotations over vertical axis. Nevertheless the results show that the declination values do not prove that there has been a generalized rotation of all the are

    Identificación de las principales fases áridas del Pleistoceno superior en el registro sedimentario lacustre del maar de Fuentillejo (Campo de Calatrava)

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    Se han realizado análisis de facies sedimentarias, geoquímicos (análisis elemental, análisis moleculares de la fracción orgánica), propiedades físicas, palinológicos y mineralógicos para caracterizar el registro sedimentario de la laguna del maar de Fuentillejo, en la región volcánica central de España de Campo de Calatrava, con el objetivo de reconstruir los procesos paleoambientales y paleoclimáticos que controlaron los patrones de la vegetación y la sedimentación. Los primeros 29 m del sondeo FU-1 muestran acusadas variaciones en el aporte de terrígenos, la química de las aguas, la vegetación y en la fracción orgánica a lo largo del Pleistoceno superior y Holoceno. En las facies de dolomicritas (con magnesita y analcima), los datos polínicos muestran un incremento del componente herbáceo, fundamentalmente taxones estépicos –Chenopodiaceae, Artemisia y Ephedra-; junto con un índice Paq bajo, descenso en el porcentaje relativo de alcano n-C27 y un incremento de alcano n-C31. Esta facies, probablemente, es el resultado de un bajo nivel del lago y condiciones salinas-alcalinas, que se han interpretado como el periodo más árido en el techo de la unidad 19.2. Las facies siliciclásticas con valores altos de susceptibilidad magnética, alto contenido en polen de Juniperus, bajo índice Paq, descenso en el porcentaje relativo de alcanos n-C27 e incremento de n-C31 son indicativos de eventos climáticos áridos y fríos. Geochemical (elemental analysis, molecular analysis of organic compounds), physical, palynological, mineralogical and sedimentary facies analysis were performed to characterize the sedimentary record in Fuentillejo maar lake in the Central Spanish Volcanic Field of Calatrava, in order to reconstruct the paleoenvironmental and paleoclimatic processes which controlled vegetation patterns and deposition of different sedimentary facies. The upper 29 m of FU-1 core point out variations in clastic input, water chemistry, vegetation and organic fraction sources in the lake throughout the late Pleistocene and Holocene. In dolomite-mud facies (magnesite and analcime), the pollen data shows an increase of the herbs component, mainly –Chenopodiaceae, Artemisia and Ephedra- steppe taxa; low Paq index, decrease in the relative percentage of the n-C27 alkane and increase in the n-C31 alkane are also observed. This facies was probably the result of lower lake levels and more saline-alkaline conditions which can be interpreted as linked to the most arid periods, especially in the top of unit 19.2. Siliciclastic facies with high magnetic susceptibility values, high Juniperus pollen content, low Paq index, decrease in the relative percentage of the n-C27 alkane and increase in the n-C31 alkane are indicative of arid and colder climatic events

    Identificación de episodios climáticos fríos mediante el registro de susceptibilidad magnética en la secuencia lacustre del maar de Fuentillejo (Ciudad Real).

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    Resumen: El maar de Fuentillejo está localizado en la Región Volcánica Central de Campo de Calatrava (Ciudad Real). Desde su inicio se ha comportado como un sistema cerrado y presenta una potencia total de 142 m de sedimentos lacustres, organizados en 23 unidades sedimentarias. Se ha realizado un estudio de la susceptibilidad magnética y densidad aparente de los sedimentos, mediante un equipo de testificación multisensor Geotek. Para obtener la edad del registro se han efectuado dataciones absolutas mediante radiocarbono, U-Th y con el estudio de polaridad magnética, obteniéndose un modelo de edad que permite datar el sondeo FUENT-1 en torno a los 350 ka. Los datos del registro de susceptibilidad magnética, junto con las dataciones efectuadas, permiten identificar una secuencia de eventos erosivos relacionados con los últimos estadios glaciares (LGM: Ultimo Máximo Glaciar y los estadios isotópicos MIS 6 y 8). El registro de susceptibilidad magnética se encuentra atenuado por procesos de disolución de los óxidos de Fe-Ti. Abstract: The Fuentillejo maar is located in the Central Spanish Volcanic Field of Campo de Calatrava (Ciudad Real). Fuentillejo maar-lake was a closed system where up to 142 m depth of lacustrine sediments were deposited. Magnetic susceptibility and bulk density were measured by a GEOTEK multisensor core logger. The chronological framework was constructed based on radiocarbon and U-Th methods, as well as a detailed study of magnetic polarity, yielding an age model that covers last 350 ka. Intervals with terrigenous sediments correspond to high magnetic susceptibility values. These intervals were correlated with erosive events during the Last Glacial Maximum and the MIS 6 and 8 isotopic stages. The record of magnetic susceptibility is attenuated by disolution processes of Fe-Ti oxides

    Identification of arid phases during the last 50 kyr Cal BP from the Fuentillejo maar lacustrine record (Campo de Calatrava Volcanic Field, Spain).

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    Geochemical (element analysis, molecular analysis of organic compounds), physical, palynological, mineralogical and sedimentary facies analysis were performed to characterise the sedimentary record in Fuentillejo maar-lake in the Central Spanish Volcanic Field of Campo de Calatrava, in order to reconstruct the palaeoenvironmental and palaeoclimatic processes which controlled vegetation patterns and deposition of different sedimentary facies. The upper 20 m of core FUENT-1 show variations in clastic input, water chemistry, vegetation and organic fraction sources in the lake throughout the Late Pleistocene and Holocene. The temporal framework provided by14C accelerator mass spectrometry dating allows assigning the sequence to the last 50 cal. ka BP. Arid phases identified in the FUENT-1 sequence are correlated to Heinrich events (HE) and to stadials of the Dansgaard/Oeschger (D/O) cycles. Siliciclastic facies with high magnetic susceptibility values, high Juniperus pollen content, a low Paq index (aquatic macrophysics proxy index), a decrease in the relative percentage of the n-C27 and an increase in the n-C31 alkanes are indicative of arid and colder climatic events related to HE 2, HE 1 and the Younger Dryas (YD). Similar short cold and arid phases during the Holocene were identified at 9.2–8.6, 7.5–7 and 5.5–5 cal. ka BP. In dolomite–mud facies, the pollen data show an increase in the herbs component, mainly – Chenopodiaceae, Artemisia andEphedra – steppe taxa; a low Paq index, a decrease in the relative percentage of the n-C27 alkane and an increase in the n-C31 alkane are also observed. This facies was probably the result of lower lake levels and more saline–alkaline conditions, which can be interpreted as linked to arid–warm periods. These warm and arid phases were more frequent during Marine Isotope Stage (MIS) 3 and the interstadials of MIS 2. HE 4, HE 2, HE 1 and the YD in core FUENT-1 were immediately followed by increases of warm steppe pollen assemblages that document rapid warming similar to the D/O cycles but do not imply increasing humidity in the area. Fuentillejo hydrology is controlled by changes in the atmospheric and oceanic systems that operated on the North Atlantic region at millennial scale during the last 50 cal. ka B

    The Last Interglacial from a continental area in Western Mediterranean. The Fuentillejo maar lacustrine record, Central Spain

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    The Fuentillejo maar is located in the Central Spanish Volcanic Field of Campo de Calatrava. Fuentillejo maar-lake has been a closed system and contains over 142 m of lacustrine sediments (Martín-Serrano et al., 2009). Geochemical (element analysis, molecular analysis of organic compounds), physical, palynological, stable isotope analysis, mineralogical and sedimentan/ facies analysis were performed to characterize the sedimentan/ record in the 57-59.3 m depth interval of core FUENT-1. These proxies reconstruct the paleoenvironmental and paleoclimatic processes which controlled vegetation patterns, lake water level and deposition of sedimentan/ facies occurred during the Last Interglacial period

    CIBERER : Spanish national network for research on rare diseases: A highly productive collaborative initiative

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    Altres ajuts: Instituto de Salud Carlos III (ISCIII); Ministerio de Ciencia e Innovación.CIBER (Center for Biomedical Network Research; Centro de Investigación Biomédica En Red) is a public national consortium created in 2006 under the umbrella of the Spanish National Institute of Health Carlos III (ISCIII). This innovative research structure comprises 11 different specific areas dedicated to the main public health priorities in the National Health System. CIBERER, the thematic area of CIBER focused on rare diseases (RDs) currently consists of 75 research groups belonging to universities, research centers, and hospitals of the entire country. CIBERER's mission is to be a center prioritizing and favoring collaboration and cooperation between biomedical and clinical research groups, with special emphasis on the aspects of genetic, molecular, biochemical, and cellular research of RDs. This research is the basis for providing new tools for the diagnosis and therapy of low-prevalence diseases, in line with the International Rare Diseases Research Consortium (IRDiRC) objectives, thus favoring translational research between the scientific environment of the laboratory and the clinical setting of health centers. In this article, we intend to review CIBERER's 15-year journey and summarize the main results obtained in terms of internationalization, scientific production, contributions toward the discovery of new therapies and novel genes associated to diseases, cooperation with patients' associations and many other topics related to RD research

    RICORS2040 : The need for collaborative research in chronic kidney disease

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    Chronic kidney disease (CKD) is a silent and poorly known killer. The current concept of CKD is relatively young and uptake by the public, physicians and health authorities is not widespread. Physicians still confuse CKD with chronic kidney insufficiency or failure. For the wider public and health authorities, CKD evokes kidney replacement therapy (KRT). In Spain, the prevalence of KRT is 0.13%. Thus health authorities may consider CKD a non-issue: very few persons eventually need KRT and, for those in whom kidneys fail, the problem is 'solved' by dialysis or kidney transplantation. However, KRT is the tip of the iceberg in the burden of CKD. The main burden of CKD is accelerated ageing and premature death. The cut-off points for kidney function and kidney damage indexes that define CKD also mark an increased risk for all-cause premature death. CKD is the most prevalent risk factor for lethal coronavirus disease 2019 (COVID-19) and the factor that most increases the risk of death in COVID-19, after old age. Men and women undergoing KRT still have an annual mortality that is 10- to 100-fold higher than similar-age peers, and life expectancy is shortened by ~40 years for young persons on dialysis and by 15 years for young persons with a functioning kidney graft. CKD is expected to become the fifth greatest global cause of death by 2040 and the second greatest cause of death in Spain before the end of the century, a time when one in four Spaniards will have CKD. However, by 2022, CKD will become the only top-15 global predicted cause of death that is not supported by a dedicated well-funded Centres for Biomedical Research (CIBER) network structure in Spain. Realizing the underestimation of the CKD burden of disease by health authorities, the Decade of the Kidney initiative for 2020-2030 was launched by the American Association of Kidney Patients and the European Kidney Health Alliance. Leading Spanish kidney researchers grouped in the kidney collaborative research network Red de Investigación Renal have now applied for the Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS) call for collaborative research in Spain with the support of the Spanish Society of Nephrology, Federación Nacional de Asociaciones para la Lucha Contra las Enfermedades del Riñón and ONT: RICORS2040 aims to prevent the dire predictions for the global 2040 burden of CKD from becoming true

    Efectos tectónicos recientes en el Campo de Calatrava deducidos de los datos paleomagnéticos del volcanismo neógeno

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    The Campo de Calatrava region shows some effects of the recent tectonics related to origin of the Betic orogen. Some of the effect recognizable at Campo de Calatrava was: vertical blocks movements leading to depressions where neogene sediments began to deposit giving rise to the tertiary basins located in the center of the Ciudad Real province. The neotectonic also has influenced in the distribution of the volcanism, which appears aligned with the main structures activity. The analysis of the variations of the magnetic declination of some of existing volcanoes allows detect the block rotations over vertical axis. Nevertheless the results show that the declination values do not prove that there has been a generalized rotation of all the area

    Elementos de valor del patrimonio geológico de Almadén (Ciudad Real)

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    We are analysing a number of elements with high geological value and that are located near Almaden. These are different natural processes that deserve to be classified as Geological Heritage, given what such a recognition would imply for the better use of these processes for scientific and didactic purposes. Not surprisingly, the Almaden area is world famous for its rich geological and mining wealth, based on which considerable knowledge has been obtained and where multiple geological and technological aspects have been discovered from the late eighteenth century to the present. This paper reviews some of these natural resources based on their definition as Geological Heritage. In this sense, the Almaden area is renown for the significant presence of these elements that have been included in the "Global Geosites" list and of some others that increase the geological-mining significance of the area. The items with unique geological value are classified according to the main Geological fields of knowledge: stratigraphic, tectonic, petrological, geomorphological and metallogenic.Se analizan distintos elementos que poseen un alto valor geológico y que se localizan próximos a Almadén.Son distintos procesos naturales que merecen ser calificados como Patrimonio Geológico, por lo que pueda significar dicho reconocimiento para su mejor aprovechamiento tanto científico como didáctico. No en vano, la zona de Almadén es mundialmente conocida por su riqueza geológica y minera, alrededor de la cual se ha desarrollado un importante conocimiento y donde se han llegado a descubrir múltiples aspectos geológicos y tecnológicos desde finales del siglo XVIII hasta nuestros días. En el presente trabajo se hace un repaso de algunos de estos recursos naturales a partir de la definición de Patrimonio Geológico. En este sentido, la zona de Almadén destaca por la importante presencia que, de estos elementos, se han incluido en la lista del Proyecto �Global Geosites� y de algunos otros que incrementan la gran riqueza geológico-minera de esta zona. Los elementos con singular valor geológico se clasifican según las principales ramas del conocimiento en Geología: estratigráficos, tectónicos, petrológicos, geomorfológicos y metalogenéticos

    Secuencia magnetoestratigráfica y edad de los materiales volcánicos y sedimentarios de Poblete (Ciudad Real)

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    The magnetostratigraphic sequence of the volcanosedimentary materials near to Poblete (Ciudad Real) has allowed dating the most recent eruption of the volcanism of the Campo de Calatrava. The chronology of the magnetostratigraphic sequence has based on the radiometric dating of one lava flow that was previous to the explosive episodes. A great variety of volcanic materials and several sedimentary levels and soils compose the sequence
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