Browsing by Unesco subject "2506 Geología"
Now showing items 1-20 of 24
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Annelid Borings on Brachiopod Shells From the Upper Ordovician of Peru. A Long-Distance Co-migration of Biotic Partners
(Frontiers Media, 2022)The Recent planktonic larvae of the polychaete spionids are some of the most widespread and abundant group of coastal meroplankton worldwide. To study the possible co-migration of biotic partners and determine whether ... -
Application of the Comparison of Multibeam Echo-Sound Records to the Study of Stability of a Toxic Waste Stockpile Located on the Margin of a Tidal System: Tinto Estuary, Huelva, SW Spain
(MDPI, 2021)For more than 40 years, the industrial complex which developed near Huelva (in SW Spain) produced a huge amount of phosphogypsum as a waste product of manufacturing fertilizers. This waste was stockpiled in a stack 25 m ... -
Biocorrosion of Carbon Steel under Controlled Laboratory Conditions
(MDPI, 2023-04)In the Iberian Pyritic Belt (SW Europe), Acid Mine Drainage (AMD) is the consequence of the interaction of physical-chemical and biological factors, where aerobic Fe and/or S oxidizing chemolithotrophic and anaerobic ... -
Choosing the site, getting the stones, building the dolmens: local sourcing of andesites at the El Pozuelo megalithic complex (Huelva, Spain)
(Springer Science and Business Media LLC., 2023-06)The geoarchaeological study focuses on the lithological characterization and provenance determination of the rocks of the El Pozuelo dolmens. The difficulty of identifying volcanic rocks in the intensely altered and ... -
Comparison of UAS and Sentinel-2 Multispectral Imagery for Water Quality Monitoring: A Case Study for Acid Mine Drainage Affected Areas (SW Spain)
(MDPI, 2022-08)Uncrewed Aerial Systems (UAS) and satellites are used for monitoring and assessing the quality of surface waters. Combining both sensors in a joint tool may scale local water quality retrieval models to regional and global ... -
Distribution of critical metals in evolving pyrite from massive sulfide ores of the Iberian Pyrite Belt
(Elsevier, 2023)With >90 known deposits containing original reserves of >2400 Mt of sulfide ore, the Iberian Pyrite Belt (IPB) is the largest volcanogenic massive sulfide (VMS) province on Earth. In these evolving mineral systems, ... -
Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
(Elsevier, 2023)This research reports the effects of pH increase on contaminant mobility in acid mine drainage from the Iberian Pyrite Belt by seawater mixing in the laboratory, simulating the processes occurring in the Estuary of Huelva ... -
Enrichment and Fractionation of Rare Earth Elements in an Estuarine Marsh Soil Receiving Acid Discharges from Legacy Sulfide Mine Wastes
(MDPI, 2021)This paper provides new insights into the geochemical cycling of rare earth elements (REEs) in acid sulfate soils developed on salt marsh sediments of the Huelva estuary (Spain) as a result of sulfide mineral oxidation in ... -
Evidence of rare earth elements origin in acid mine drainage from the Iberian Pyrite Belt (SW Spain)
(Elsevier, 2023-02)Acid mine drainage (AMD) is a worldwide pollution problem of watersheds. In addition to toxic metal(oid)s and acidity, many elements of economic interest are released into the environment, which make AMD a potential strategic ... -
Factores condicionantes de la acidificación de embalses por lixiviados mineros en la Faja Pirítica Ibérica
(Sociedad Geológica de España, 2022)Los ríos que drenan la Faja Pirítica Ibérica (FPI) presentan un grave problema de contaminación por aguas ácidas procedentes de minas de sulfuros abandonadas. La construcción de la presa de Alcolea, localizada en el río ... -
Hydrogeochemical and mineralogical study of the ecological treatment of phosphogypsum leachates
(Universidad de Huelva, 2022)The production of phosphoric acid in the phosphate fertilizer industry, via the wet chemical attack of phosphate rock with sulfuric acid, generates an unwanted by-product known as phosphogypsum. This waste is mainly composed ... -
Impact of the SARS-CoV-2 lockdown measures in Southern Spain on PM10 trace element and gaseous pollutant concentrations
(Elsevier, 2022)Trace element concentrations within PM10, gaseous pollutants (NO2 and SO2), and PM10 levels were studied during the Covid-19 lockdown at a regional level in Southern Spain (Andalusia). Pollutant concentrations were compared ... -
Middle Eocene carbonate platforms of the westernmost Tethys
(Elsevier, 2021)A study of the paleoenvironmental evolution of themiddle Eocene platforms recognized in the westernmost Tethys has been carried out in the well-exposed middle Eocene succession from Sierra Espuña-Mula basin (Betic Cordillera, ... -
Multidisciplinary investigation reveals the earliest textiles and cinnabar‑coloured cloth in Iberian Peninsula
(Nature Research, 2021)Textile production is among the most fundamental and more complex technologies in human prehistory, but is under-investigated due to the perishable nature of fibrous materials. Here we report a discovery of five textile ... -
Natural radioactivity and element characterization in pit lakes in Northern Sweden
(Public Library of Science (PLoS), 2022)Northern Sweden has been the object of intense metal mining in the last decades producing several water-filled open-pits, or pit lakes. Most of these pit lakes have been limed to maintain a good water quality and to ... -
New Geological Evidence of the 1755 Lisbon Tsunami from the Rock of Gibraltar (Southern Iberian Peninsula)
(MDPI, 2021)This paper presents the easternmost mineralogical and geochemical evidence of the 1755 Lisbon tsunami found in the Western Mediterranean. This multidisciplinary analysis of a sediment core obtained in Gibraltar (southern ... -
Polymetallic nanoparticles in pyrite from massive and stockwork ores of VMS deposits of the Iberian Pyrite Belt
(Elsevier, 2022)This paper reports the first-ever study on nanoscale mineralogy in pyrite from the volcanogenic massive sulfide (VMS) deposits of the Iberian Pyrite Belt, southwestern Iberian Peninsula. It targeted colloform-textured ... -
Potential release and bioaccessibility of metal/loids from mine wastes deposited in historical abandoned sulfide mines
(Elsevier, 2022)This study deals with the potential release of metal/loids from sulfide mine wastes upon weathering and the health risks associated with their accidental ingestion. To address this, a complete chemical and mineralogical ... -
Rare earth element signature modifications induced by differential acid alteration of rocks in the Iberian Pyrite Belt
(Elsevier, 2023)The efficient use of REE as tracers of weathering processes requires further data acquisition to establish robust connections between mechanisms, mineral assemblages and REE concentration patterns. Here, results are provided ... -
El registro geoambiental del estuario holoceno de Huelva como indicador de la historia evolutiva de sus asentamientos ribereños
(Universidad de Huelva, 2021)El litoral constituye uno de los medios naturales más dinámicos, frágiles y complejos del planeta. Esta área de transición entre los sistemas terrestres y marinos se caracteriza por intensos procesos de intercambio de ...