A5057450723- Archaeological and Geological Studies
- Archaeological and Historical Studies
- Geological and Geophysical Studies Worldwide
- Building materials and conservation
- Karst Systems and Hydrogeology
- Geology and Paleoclimatology Research
- Medieval Architecture and Archaeology
- Conservation Techniques and Studies
- Educational Technology in Learning
- Higher Education Teaching and Evaluation
- Pleistocene-Era Hominins and Archaeology
- Groundwater and Isotope Geochemistry
- 3D Surveying and Cultural Heritage
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Cultural Heritage Materials Analysis
- Geological and Geochemical Analysis
- Chemical and Environmental Engineering Research
- Archaeological Research and Protection
- Paleontology and Stratigraphy of Fossils
- Mineral Processing and Grinding
- Geological and Tectonic Studies in Latin America
- earthquake and tectonic studies
- Microbial Community Ecology and Physiology
- Evolution and Paleontology Studies
University of Alicante
2015-2024
Consejo Superior de Investigaciones Científicas
1996-2011
Museo Nacional de Ciencias Naturales
1996-1999
Fossil evidence from the Iberian Peninsula is essential for understanding Neandertal evolution and history. Since 2000, a new sample ≈43,000 years old has been systematically recovered at El Sidrón cave site (Asturias, Spain). Human remains almost exclusively compose bone assemblage. All of skeletal parts are preserved, there moderate occurrence Middle Paleolithic stone tools. A minimum number eight individuals represented, ancient mtDNA extracted dental osteological remains. Paleobiology...
Despite evidence of damaging human impacts, cave paintings may again be threatened if visitors are allowed access.
The walls and ceiling of Altamira Cave, northern Spain, are coated with different coloured spots (yellow, white grey). Electron microscopy revealed that the grey composed bacteria bioinduced CaCO(3) crystals. morphology a dense network microorganisms organized in well-defined radial dendritic divergent branches from central area towards exterior spot, which is overlying spheroidal elements nest-like aggregates. Molecular analysis indicated were mainly formed by an unrecognized species genus...
Evidences of microbial colonizations were observed in Altamira Cave, Spain. These consisted distinct small coloured colonies, both on walls and ceiling, mainly located the area near cave entrance, which progressed until reaching Polychromes Hall. The characterized by a high morphological microstructural variability related to biomineralization processes. Two main types CaCO3 deposits colonies: rosette- or nest-like aggregates rhombohedral calcite crystals, spheroid hemispheroid elements....
Torres et al . (2010 ) published a series of radiocarbon, AAR, ESR and OSL dates from the site El Sidrón, northern Spain, which is notable for discovery partial remains 12 Neanderthals. Whilst non‐radiocarbon methods suggested an age beyond 32 600–46 300 years, direct radiocarbon on human fossils were inconsistent, ranging between 10 000 50 bp This study uses ultrafiltration pre‐treatment protocol to obtain date 48 400 ± 3200 (OxA‐21 776) bone fragment confirm antiquity Neanderthal...
Subterranean ecosystems play an active role in the global carbon cycle, yet only a few studies using indirect methods have focused on of cave microbiota this critical cycle. Here we present pioneering research based situ real-time monitoring CO2 and CH4 diffusive fluxes concurrent δ13C geochemical tracing caves, combined with 16S microbiome analysis. Our findings show that sediments are promoting continuous consumption from atmosphere, resulting significant removal 65% to 90%. This reveals...
In the absence of sunlight, caves harbor a great diversity microbial colonies to extensive biofilms with different sizes and colors visible naked eye. One most widespread types biofilm are those yellow hues that can constitute serious problem for conservation cultural heritage in many caves, such as Pindal Cave (Asturias, Spain). This cave, declared World Heritage Site by UNESCO its Paleolithic parietal art, shows high degree development represents real threat painted engraved figures. study...
The age of Neanderthal remains and associated sediments from El Sidrón cave has been obtained through different dating methods ( 14 CAMS, U/TH, OSL, ESR AAR) samples (charcoal debris, bone, tooth dentine, stalagmitic flowstone, carbonate‐rich sediments, sedimentary quartz grains, enamel land snail shells). Detrital Th contamination rendered Th/U analyses flowstone unreliable. Recent C produced spurious age‐values charcoal as well inadequately pretreated samples. Most consistent dates are...
The Paleogene evolution of the NW margin African Plate (Western External Rif Zone) was studied by means multidisciplinary analyses twenty-one stratigraphic logs, including tectofacies recognition, petro-mineralogical results, and thicknesses analysis. Four intervals were recognized separated three unconformities coarsely aligned with Cretaceous–Paleogene, Eocene–Oligocene Oligocene–Miocene boundaries, respectively. Tectofacies appear from late Ypresian being more frequents Oligocene as...
The genus Crossiella contains two species, C. equi, causing nocardioform placentitis in horses, and cryophila, an environmental bacterium. Apart from which is not discussed here, rarely reported the literature; thus, it has been included among “rare actinobacteria”, whose isolation frequency very low. After only five reports cover of strains. However, published papers on increased significantly recent years due to extensive use next-generation sequencing (NGS) a huge cascade data that...
Abstract Microbial communities, where Streptomyces species predominate, were found in association with hydromagnesite, Mg5(CO3)4(OH)2.4H2O, and needle-fiber aragonite deposits an Altamira cave. The ability to precipitate calcium carbonate laboratory cultures suggests that these other bacteria present the cave may play a role formation of moonmilk deposits. Keywords: Actinomycetes Cave Aragonite Biomineralization Calcite Heterotrophic Bacteria Hydromagnesite Moonmilk Speleothem Vaterite
This investigation studies the physical and chemical effect of salt weathering on biocalcarenites biocalcrudites in Basilica Our Lady Succour (Aspe, Spain). Weathering patterns are result salty rising capillary water lixiviated from pigeon droppings. Surface modifications features induced by material loss observable monument. Formation gypsum, hexahydrite, halite, aphthitalite arcanite is associated with water, niter, hydroxyapatite, brushite, struvite, weddellite, oxammite halite...
The Miocene evolution of the External Rif Zone (NW Africa Plate) was determined through multidisciplinary analysis fourteen successions. updated stratigraphic framework shows how sediments rest on Cretaceous–Paleogene terrains unconformity surfaces, whereas it rests with sedimentary continuity in two sectors. After recognition lithofacies and three unconformities located near Oligocene–Aquitanian, Aquitanian–Burdigalian Serravallian–Tortonian boundaries, record divided into intervals...