A5009230929- Mine drainage and remediation techniques
- Metal Extraction and Bioleaching
- Geochemistry and Elemental Analysis
- Minerals Flotation and Separation Techniques
- Methane Hydrates and Related Phenomena
- Arsenic contamination and mitigation
- Mining and Resource Management
- Marine Biology and Ecology Research
- Tailings Management and Properties
- Groundwater and Isotope Geochemistry
- Ocean Acidification Effects and Responses
- Radioactive element chemistry and processing
- Mediterranean and Iberian flora and fauna
- Karst Systems and Hydrogeology
- Microbial Community Ecology and Physiology
- Historical and socio-economic studies of Spain and related regions
- Heavy metals in environment
- Polar Research and Ecology
- Groundwater flow and contamination studies
- Geology and Paleoclimatology Research
- Arctic and Russian Policy Studies
- Paleontology and Stratigraphy of Fossils
- Environmental remediation with nanomaterials
- CO2 Sequestration and Geologic Interactions
- Hydrocarbon exploration and reservoir analysis
Instituto Geológico y Minero de España
2014-2024
Consejo Superior de Investigaciones Científicas
2023-2024
Geoambiente (Brazil)
2005
The Iberian Pyrite Belt (IPB) hosts one of the world's largest accumulations acidic mine wastes and pit lakes. mineralogical textural characteristics IPB ores have favored oxidation dissolution metallic sulfides, mainly pyrite, subsequent formation mining drainages. This work reports physical properties, hydrogeochemical characteristics, microbial diversity two lakes located in IPB. Both are showed high concentrations sulfate dissolved metals. Concentrations heavy metals were higher Nuestra...
Previous studies have addressed the occurrence of Acid Rock Drainage (ARD) affecting La Silva stream due to generation large dumps Middle Ordovician black shales during construction a highway close El Bierzo (León, Spain). This ARD was characterized by sulphated acid waters with high concentration heavy metals and anomalies in dissolved thorium (Th) uranium (U). In present study, we analyse depth water, streambed sediments precipitates its tributaries using different petrographic,...
Iron terraces that form in acidic mine drainage settings are unique and extreme geomicrobiological systems can provide highly relevant information about the interaction between microbes their surrounding aqueous environments. These singular represent, additionally, potential models for study of ancient geological formations (e.g., banded iron formations, stromatolites) and/or cycling on Mars. This work describes geochemical, mineralogical, morphological, micro-biological evidence obtained...
This work presents a new high-resolution multibeam bathymetric map of segment active deep sea-floor spreading in the Atlantic Ocean, northern Mid-Atlantic Ridge (MAR) at 45–46º N. New bathymetry data were acquired using an Atlas echosounder onboard research vessel Sarmiento de Gamboa during EXPLOSEA-2 survey 2019. The final MAR (50 m cell grid size) original scale 1:200,000 shows 140 × 35 km MAR, water depths from 715 to 3700 m. allows better defining submarine morphology Moytirra...
Abstract. Azooxanthellate cold-water corals (CWCs) have a global distribution and commonly been found in areas of active fluid seepage. The relationship between the CWCs these fluids, however, is not well understood. This study aims to unravel CWC development hydrocarbon-rich seepage Pompeia Province (Gulf Cádiz, Atlantic Ocean). region comprised mud volcanoes (MVs), coral ridges fields mounds, which are all affected by tectonically driven fluids. These types seepage, for example, focused,...
In this work, we integrate five case studies harboring vulnerable deep-sea benthic habitats in different geological settings from mid latitude NE Atlantic Ocean (24–42° N). Data and images of specific were acquired with Remoted Operated Vehicle (ROV) sensors (temperature, salinity, potential density, O2, CO2, CH4). Besides documenting some key habitats, study shows that the distribution coral aggregations (including scleractinians, gorgonians, antipatharians), sponge other are influenced by...
Las Tablas de Daimiel National Park (TDNP, Iberian Peninsula) is a semi-arid wetland of international significance for waterfowl and serves as migratory route various bird species. However, TDNP presents strong anthropization fluctuating water levels, making it highly fragile ecosystem. Water physico-chemical parameters microbial diversity the three domains (Bacteria-Archaea- Eukarya) were analysed in Zone A B (a total eight stations) during spring summer, aiming to determine how seasonal...
Mineralogical characterization of the precipitates developed in passive systems treating minepolluted waters is an essential tool to fully understand and control removal processes taking place these systems. In 2008, after five years operation, a section permeable reactive barrier (PRB) at Shilbottle, Northumberland, was subjected low intrusive/non-destructive solid sampling. These samples were mineralogically characterized by XRD, ESEM-EDS, sequential extractions. addition sampling, 44...
Abstract Selective precipitation of schwertmannite was identified in the water column a chemically stratified acidic lake (pH 2.0 2.5). A set analytical techniques used to identify accurately mineral phase (X-ray diffraction, X-ray fluorescence spectrometry, scanning electron microscopy coupled with energy dispersive spectroscopy). The has two clearly differentiated layers: thin superficial layer that extends ∼2 m depth less dissolved solid content and, therefore, lower density, which...
DATA REPORT article Front. Mar. Sci., 04 November 2020 | https://doi.org/10.3389/fmars.2020.568035
Abstract. In mining areas in which sulfur-containing ores are exposed, the oxidation of sulfides leads to formation acidic mine drainage (AMD) waters. Both traditional and molecular microbial studies have shown that chemolithotrophic sulfur- iron-oxidizing bacteria responsible for this activity. The Iberian Pyrite Belt (IPB), located southwestern Spain represents one world’s largest accumulations wastes AMD Mineralogical textural characteristics IPB favor dissolution pyrite subsequent Acidic...