Internal framework and geochemistry of the Carboniferous Huaco granite pluton, Sierra de Velasco, NW Argentina

The A-type Huaco granite pluton of the Velasco range (Sierras Pampeanas of northwest Argentina) is formed by three coeval granitic facies and contains subordinate coeval-to-late facies, as well as enclaves, dikes and stocks that show different temporal relations, textures and compositions. The dominant facies (Regional Porphyritic Granite; RPG) is a porphyritic two-mica monzo- to syenogranite, with abundant microcline megacrysts up to 12 cm in size. It was emplaced in a dominant extensional setting and has a mainly crustal source but with participation of a mantle-derived component. The RPG transitions towards two coeval and co-genetic granite facies, at its margins (Border Granite; BG) and around Be-pegmatites (Adjacent Porphyritic Granite; APG). These two facies have a finer-grained texture and smaller and less abundant megacrysts. They are also monzo- to syenogranites, but a slight decrease in the biotite/muscovite ratio is observed from the BG to the RPG to the APG. Trace element modeling suggests that the RPG, BG and APG differentiated from the same magma source by fractional crystallization. Temporally older mafic (ME) and felsic (FE) enclaves are common in the pluton. The ME can be considered partially assimilated remnants of a mafic component in the genesis of the RPG, whereas the FE seem to be remnants of premature aplites. Other subordinate rocks intrude the RPG and are, hence, temporally younger: felsic dikes (FD), dioritic dikes (DD) and equiganular granites (EqG) are clearly posterior, whereas coeval-to-late Be-pegmatites (BeP) and orbicular granites (OG) formed during the final stages of crystallization of the pluton. The BeP, OG and FD indicate the presence of abundant water and volatiles. The EqG form small stocks that intrude the RPG and were possibly originated from purely crustal sources. The DD probably correspond to a younger unrelated episode of mafic magmatism.Fil: Sardi, Fernando Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: Grosse, Pablo. Fundación Miguel Lillo. Dirección de Geología. Instituto de Minerología y Petrografia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: Murata, Mamoru. Naruto University; JapónFil: Lozano Fernández, Rafael Pablo. Instituto Geológico y Minero de España; Españ

Caracterización mineralógica y textural del yacimiento de zeolitas de "Los Murcianos" (Cabo de Gata, Almería). Resultados preliminares

Depto. de Mineralogía y PetrologíaFac. de Ciencias GeológicasTRUEpu

Amber in Portugal: state of the art

XXXIV Jornadas de Paleontología y IV Congreso Ibérico de Paleontología (Villareal, Portugal. Sep 2018) p 279-287Portuguese amber has received very little attention from the paleontological and geological points of view. To our knowledge, only twelve amber outcrops or amber-bearing areas have been detected in Portugal. The first outcrops were cited in times as old as 1867 and 1910, and although some of them were considered Jurassic in age, most likely the amber came from Cretaceous deposits. The Portuguese outcrops are poor in amber and, thus far, only a dipteran (Nematocera) insect has been found as bioinclusion (Cascais amber); the area of Estoril-Cascais, near Lisbon, provides amber interesting from the paleoentomological standpoint. In contrast, prehistoric amber from Portugal, namely as diverse types of beads and pendants, has been researched in some detail during the last decades. The 25 archeological localities known occur from north to south, ranging in ages from the Neolithic through the Chalcolithic to the Late Bronze Age. Further research is required to prospect the known paleontological localities, and also to look for new ones, in order to obtain stratigraphically contextualized samples and to perform the first infrared and/or Raman spectroscopy analyses. This will allow comparing these with the infrared and/or Raman spectra of archeological pieces to shed light on the origin of the amber as a raw material during prehistoric times. The potential discovery of a paleontological locality yielding abundant bioinclusions would be of great interest, as it would allow taxonomic and paleoecological comparisons with the rich Cretaceous outcrops from the north and northeastern Iberian PeninsulaMuseo Geominero, Instituto Geológico y Minero de EspañaDepartament de Dinàmica de la Terra i del Oceà and Institut de Recerca de la Biodiversitat (IRBio). Facultat de Ciències de laTerra. Universitat de BarcelonaDepartamento de Prehistoria, Historia Antigua y Arqueología. Universidad de SalamancaDepartamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad ComplutenseMuseo de Ciencias Naturales de ÁlavaDepartamento de Prehistoria y Arqueología, Universidad de GranadaOxford University Museum of Natural HistoryInstitute of Environmental Science and Technology (ICTA)Facultad de Ciencias, Universidad Autónoma de MadridDepartamento de História, Estudos Europeus, Arqueologia e Artes, Faculdade de Letras, Universidade de Coimbra, Instituto de Arqueologi

Proyecto AMBERIA (CGL2014-52163): avance de resultados

Bienal de la Real Sociedad de Historia Natural (22º. 2017. Coimbra)En la XXI Bienal de la Real Sociedad Española de Historia Natural celebrada en Burgos en el año 2015, se expuso una presentación del proyecto AMBERIA: “El ámbar de Iberia: un excepcional registro de los bosques cretácicos en los albores de los ecosistemas terrestres modernos”, subvencionado por el MINECO, que acababa de ser concedido. El objetivo de ese trabajo fue exponer las líneas maestras de las investigaciones que se iban a realizar en un tema tan apasionante como son las resinas fósiles con inclusiones biológicas del Cretácico Inferior (Albiense superior, alrededor de 105 Ma). Ahora el objetivo del presente trabajo es dar a conocer algunos de los resultados más interesantes que hemos obtenido durante el desarrollo de este proyecto.Departamento de Biología, Universidad Autónoma de Madrid, EspañaMuseo Geominero, Instituto Geológico y Minero de España, EspañaDepartamento de Zoología y Antropología Física, Universidad Complutense de Madrid, EspañaDepartament de Dinàmica de la Terra i de l’Oceà and Institut de Recerca de la Biodiversitat, Universitat de Barcelona, EspañaMuseo de Prehistoria y Arqueología de Cantabria, EspañaMuseum of Comparative Zoology, Harvard University, Estados UnidosDepartament Ciències Agràries i del Medi Natural, Universitat Jaume I, EspañaUniversidad Nebrija, EspañaInstitut de Ciència i Tecnologia ambientals, Universitat Autònoma de Barcelona, EspañaPeer reviewe

Dinosaur bonebed amber from an original swamp forest soil

[EN] Dinosaur bonebeds with amber content, yet scarce, offer a superior wealth and quality of data on ancient terrestrial ecosystems. However, the preserved palaeodiversity and/or taphonomic characteristics of these exceptional localities had hitherto limited their palaeobiological potential. Here, we describe the amber from the Lower Cretaceous dinosaur bonebed of Ariño (Teruel, Spain) using a multidisciplinary approach. Amber is found in both a root layer with amber strictly in situ and a litter layer mainly composed of aerial pieces unusually rich in bioinclusions, encompassing 11 insect orders, arachnids, and a few plant and vertebrate remains, including a feather. Additional palaeontological data-charophytes, palynomorphs, ostracods- are provided. Ariño arguably represents the most prolific and palaeobiologically diverse locality in which fossiliferous amber and a dinosaur bonebed have been found in association, and the only one known where the vast majority of the palaeontological assemblage suffered no or low-grade pre-burial transport. This has unlocked unprecedentedly complete and reliable palaeoecological data out of two complementary windows of preservation-the bonebed and the amber-from the same site.Funding Ministerio de Ciencia, Innovación y Universidades: CGL2017-84419 (Eduardo Barrón, Xavier Delclòs); Ministerio de Ciencia, Innovación y Universidades: PGC2018-094034-B-C22 (Luis Alcalá) ; Ministerio de Economía y Competitividad: CGL2015-69805-P (Carles Martín-Closas) ; Generalitat de Catalunya: 2017SGR-824 (Carles Martín-Closas, Xavier Delclòs) ; Generalitat de Catalunya: 2020FI_B1 00002 (Sergio Álvarez-Parra) ; Oxford University Museum: Research Fellowship (Ricardo Pérez-de la Fuente) ; Ministerio de Ciencia, Innovación y Universidades: BES-2016-076469 (Jordi Pérez-Cano) ; Austrian Academy of Sciences: Project 661 (Khaled Trabelsi) ; Université de Tunis: LR18 ES07 (Khaled Trabelsi) ; Generalitat Valenciana: APOSTD2019 (Alba Sánchez-García) ; European Regional Development Fund: IGME13-4E-1518 (Rafael P Lozano)Peer reviewe

La ciudad como experiencia de conocimiento: Nuevas metodologías de aprendizaje, iniciación de la investigación y extensión universitaria a partir de la historia urbana

Depto. de GeografíaDepto. de Historia Moderna y ContemporáneaDepto. de Historia del ArteFac. de Geografía e HistoriaFALSEsubmitte

Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality

100 años investigando el mar. El IEO en su centenario (1914-2014).

Se trata de un libro que pretende divulgar a la sociedad las principales investigaciones multidisciplinares llevadas a cabo por el Instituto Español de Oceanografía durante su primer siglo de vida, y dar a conocer la historia del organismo, de su Sede Central y de los nueve centros oceanográficos repartidos por los litorales mediterráneo y atlántico, en la península y archipiélagos.Kongsberg 20