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8th International Scientific Conference on Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2008(1)
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Clustering Disjoint HJ-Biplot: A new tool for identifying pollution patterns in geochemical studies
ArticleAbstract: This paper introduces a new mathematical algorithm termed Clustering Disjoint HJ-Biplot (CDBiplot),Palabras claves:Disjoint factorial axes, HJ-biplot, Sediment pollutionAutores:Carlos Sierra, Nieto-Librero A.B., Purificación Galindo-Villardón, Ruiz Barzola Omar, Vicente-Galindo P.Fuentes:googlescopusCombining raw and compositional data to determine the spatial patterns of Potentially Toxic Elements in soils
ArticleAbstract: When considering complex scenarios involving several attributes, such as in environmental characteriPalabras claves:Compositional data, Local G-clustering, Ordinary kriging, PTEs, Relative enrichment, soil pollutionAutores:Albuquerque T., Boente C., Carlos Sierra, Fernández-Braña A., Gallego J.R., Gerassis S.Fuentes:scopusFunctional data analysis as a tool to correlate textural and geochemical data
ArticleAbstract: This paper discusses the use of functional data analysis to determine the interactions between the cPalabras claves:Element concentration, functional data analysis, Granulometric curveAutores:Albuquerque T., Carlos Sierra, Gallego J.R., Ordóñez C.Fuentes:scopusGeochemical composition of beach tar from the se coast of the paria peninsula, ne venezuela: Derivation from natural seepages
ArticleAbstract: Tar residues ("tarballs") occur frequently on the SE coast of the Paria Peninsula, NE Venezuela. ThiPalabras claves:Gulf of Paria, Los Bajos fault, Marine seepages, Naparima Hill Formation, organic geochemistry, Seepage oils, Tarballs, Trinidad, VENEZUELAAutores:Carlos Sierra, De Freitas K.A., Érica Lorenzo, Escobar M., Fernàndez R., Galarraga F., Gallego J.R., Gonzalo MárquezFuentes:scopusGeochemical interactions study in surface river sediments at an artisanal mining area by means of Canonical (MANOVA)-Biplot
ArticleAbstract: This paper analyzes trace elements concentrations from surface detrital sediments corresponding to 4Palabras claves:Artisanal gold mining, Potentially toxic metals, Quality of representation index (QRI), Surface river sedimentsAutores:Carlos Sierra, Jhonny R. Demey, Menéndez M., Ruiz Barzola Omar, Vicente-Villardon J.L.Fuentes:googlescopusGeochemistry and chemostratigraphy of the Colón -mito juan units (campanian-maastrichtian), Venezuela: Implications for provenance, depositional conditions, and stratigraphic subdivision
ArticleAbstract: A geochemical and chemostratigraphical study was undertaken on Campanian-Maastrichtian sedimentary rPalabras claves:Chemostratigraphy, Colón -mito juan sequence, geochemistry, Lake maracaibo, Stratigraphic subdivisionAutores:Carlos Sierra, Escobar M., Esteves I.H., Gallego J.R., Gonzalo Márquez, Gutiérrez J.V., Manuel Martínez, Montilla L.Fuentes:scopusElement enrichment factor calculation using grain-size distribution and functional data regression
ArticleAbstract: In environmental geochemistry studies it is common practice to normalize element concentrations in oPalabras claves:Functional regression, normalization, Pollutant concentration, regularizationAutores:Carlos Sierra, Gallego J.R., Ordóñez C., Saavedra A.Fuentes:scopusImpact of Old Pb Mining and Metallurgical Production in Soils from the Linares Mining District (Spain)
ArticleAbstract: Mineral processing and metallurgy production centers may leave a far‐reaching finger-print of soil cPalabras claves:Heavy Metals, remediation, Risk Assessment, soil pollutionAutores:Afif E., Antunes I.M.H.R., Boente C., Carlos Sierra, Gallego J.R., Martínez J., Rey J., Rodríguez‐valdés E.Fuentes:scopusTextural distribution of arsenic and heavy metals in soils affected by abandoned mining works: Consequences for soil washing
Conference ObjectAbstract: We introduce an example of a detailed study of soil texture and geochemistry with the aim of designiPalabras claves:arsenic, soil washing, textureAutores:Carlos Sierra, Gallego J.R., González-Coto F., J. M. Menéndez-Aguado, Villa R.Fuentes:scopusOrigin, patterns and anthropogenic accumulation of potentially toxic elements (PTEs) in surface sediments of the Avilés estuary (Asturias, northern Spain)
ArticleAbstract: Sediment quality has been assessed within the Avilés estuary, an important industrial area in the NWPalabras claves:Enrichment factors, Geostatistics, Multivariate analysis, Particulate emissions, Sediment contaminationAutores:Boado C., Carlos Sierra, Gallego J.R., Ordóñez C., Saavedra A.Fuentes:scopus