Search Results - "Antunes, I.M.H.R."

Uranium and arsenic contamination in the former Mondego Sul uranium mine area, Central Portugal by Neiva, A.M.R., Antunes, I.M.H.R., Carvalho, P.C.S., Santos, A.C.T.

“…The abandoned Mondego Sul uranium mine exploited quartz veins containing sulfides, torbernite, meta-uranocircite, saleeite, meta-saleeite and Fe-oxides and…”
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Contaminated water, stream sediments and soils close to the abandoned Pinhal do Souto uranium mine, central Portugal by Neiva, A.M.R., Carvalho, P.C.S., Antunes, I.M.H.R., Silva, M.M.V.G., Santos, A.C.T., Cabral Pinto, M.M.S., Cunha, P.P.

“…The Pinhal do Souto mine exploited a quartz vein containing uranium minerals, mainly autunite and torbernite. This vein intersects a two-mica granite…”
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The mineralized veins and the impact of old mine workings on the environment at Segura, central Portugal by Antunes, I.M.H.R, Neiva, A.M.R, Silva, M.M.V.G

“…At Segura, granitic pegmatite veins with cassiterite and lepidolite, hydrothermal Sn–W quartz veins and Ba–Pb–Zn quartz veins intruded the Cambrian…”
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Provincial and seasonal influences on heavy metals in the Noyyal River of South India and their human health hazards by Karunanidhi, D., Aravinthasamy, P., Subramani, T., Chandrajith, Rohana, Janardhana Raju, N., Antunes, I.M.H.R.

“…This study was carried out to evaluate the heavy metals (Lead (Pb), Nickel (Ni), Chromium (Cr), Copper (Cu), Cadmium (Cd) and Zinc (Zn)) pollution in the…”
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Groundwater management: Effectiveness of mitigation measures in nitrate vulnerable zones – a Portuguese case study by Gomes, Eliana, Antunes, I.M.H.R., Leitão, Bruno

“…Groundwater vulnerability depends on hydrogeological characteristics, land use dynamics and pollutant sources. In Europe, agriculture is the main source of…”
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Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach by Dhaoui, Oussama, Antunes, I.M.H.R., Boente, Carlos, Agoubi, Belgacem, Kharroubi, Adel

“…Groundwater is an important resource used for multiple purposes and should be protected, especially, in arid regions. The aim of this study is to assess the…”
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Developing a new Bayesian Risk Index for risk evaluation of soil contamination by Albuquerque, M.T.D., Gerassis, S., Sierra, C., Taboada, J., Martín, J.E., Antunes, I.M.H.R., Gallego, J.R.

“…Industrial and agricultural activities heavily constrain soil quality. Potentially Toxic Elements (PTEs) are a threat to public health and the environment…”
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Geological and hydrogeological review of a semi-arid region with conflicts to water availability (southeastern Brazil) by Bhering, Apolo P., Antunes, I.M.H.R., Marques, Eduardo A.G., de Paula, Rodrigo S.

“…Groundwater consumption has become increasingly relevant for urban development. The city of Montes Claros (Minas Gerais, Brazil) is located in the border…”
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Using indicator kriging for the evaluation of arsenic potential contamination in an abandoned mining area (Portugal) by Antunes, I.M.H.R., Albuquerque, M.T.D.

“…Mining and mineral-processing activities can modify the environment in a variety of ways. Sulfide mineralization is notorious for producing waters with high…”
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Predictive scenarios for surface water quality simulation - A watershed case study by Antunes, I.M.H.R., Albuquerque, M.T.D., Oliveira, S.F., Sánz, G.

“…Surface water is exposed to contaminants which change the natural hydrological parameters and consequent contaminant dispersion. Water self-depuration is an…”
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Assessment of metal and metalloid contamination in the waters and stream sediments around the abandoned uranium mine area from Mortórios, central Portugal by Neiva, A.M.R., Carvalho, P.C.S., Antunes, I.M.H.R., Albuquerque, M.T.D., Santos, A.C.S., Cunha, P.P., Henriques, S.B.A.

“…In the abandoned Mortórios uranium mine area there are quartz veins containing wolframite and sulphides and basic rock dykes with torbernite and autunite…”
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Spatial Mobility of U and Th in a U-enriched Area (Central Portugal) by Antunes, Margarida, Santos, António, Valente, Teresa, Albuquerque, Teresa

“…Uranium and thorium are toxic in different environments. The exploitation of uranium mines and associated mine drainage leaching towards streams, sediments,…”
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Predicting ore content throughout a machine learning procedure – An Sn-W enrichment case study by Iglesias, C., Antunes, I.M.H.R., Albuquerque, M.T.D., Martínez, J., Taboada, J.

“…The distribution patterns of trace elements are very useful for predicting mineral deposits occurrence. Machine learning techniques were used for the…”
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Potential risk assessment in stream sediments, soils and waters after remediation in an abandoned W>Sn mine (NE Portugal) by Antunes, I.M.H.R., Gomes, M.E.P., Neiva, A.M.R., Carvalho, P.C.S., Santos, A.C.T.

“…The mining complex of Murçós belongs to the Terras de Cavaleiros Geopark, located in Trás-os-Montes region, northeast Portugal. A stockwork of NW-SE-trending…”
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Geochemical and isotopic constraints on the petrogenesis of Early Ordovician granodiorite and Variscan two-mica granites from the Gouveia area, central Portugal by Neiva, A.M.R., Williams, I.S., Ramos, J.M.F., Gomes, M.E.P., Silva, M.M.V.G., Antunes, I.M.H.R.

“…A biotite granodiorite and seven Sn-bearing two-mica granites crop out in the Gouveia area, central Portugal. A SHRIMP U–Th–Pb zircon age from the…”
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The genesis of I- and S-type granitoid rocks of the Early Ordovician Oledo pluton, Central Iberian Zone (central Portugal) by Antunes, I.M.H.R., Neiva, A.M.R., Silva, M.M.V.G., Corfu, F.

“…The Early Ordovician Oledo pluton consists of four distinct granodioritic to granitic phase (G1–G4), which intruded a Cambrian schist-metagraywacke complex,…”
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Spatio-Temporal Groundwater Vulnerability Assessment - A Coupled Remote Sensing and GIS Approach for Historical Land Cover Reconstruction by Albuquerque, M. T. D., Sanz, G., Oliveira, S. F., Martínez-Alegría, R., Antunes, I. M. H. R.

“…This paper presents a spatial-temporal groundwater vulnerability assessment, based on a coupled remote sensing and GIS approach for historical land cover…”
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Geochemistry of S-type granitic rocks from the reversely zoned Castelo Branco pluton (central Portugal) by Antunes, I.M.H.R., Neiva, A.M.R., Silva, M.M.V.G., Corfu, F.

“…The zoned pluton from Castelo Branco consists of Variscan peraluminous S-type granitic rocks. A muscovite>biotite granite in the pluton's core is surrounded…”
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A Multivariate Geostatistical Methodology to Delineate Areas of Potential Interest for Future Sedimentary Gold Exploration by Goovaerts, Pierre, Albuquerque, M. T. D., Antunes, I. M. H. R.

“…This paper describes a multivariate geostatistical methodology to delineate areas of potential interest for future sedimentary gold exploration, with an…”
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Petrogenetic links between lepidolite-subtype aplite-pegmatite, aplite veins and associated granites at Segura (central Portugal) by Antunes, Isabel Margarida Horta Ribeiro, Neiva, Ana Margarida Ribeiro, Ramos, João Manuel Farinha, Silva, Paulo Bravo, Silva, Maria Manuela Vinha Guerreiro, Corfu, Fernando

“…In the Segura area, Variscan S-type granites, aplite veins and lepidolite-subtype granitic aplite-pegmatite veins intruded the Cambrian schist-metagraywacke…”
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