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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: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:googlescopusGrade control in a quartz deposit using universal fuzzy kriging
ArticleAbstract: We adapt the universal kriging method of pbkp_rediction to contexts with uncertainty and imprecise dPalabras claves:3D model, Fuzzy number, Quartz quality, Selective mining, universal krigingAutores:Carlos Sierra, Castro J.T., Galán C.O., González A.S., Pérez E.G.Fuentes:scopusErratum to: Particle size distribution fitting of surface detrital sediment using the Swrebec function (Journal of Soils and Sediments, (2015), 15, 9, (2004-2011), 10.1007/s11368-015-1156-9)
OtherAbstract:Palabras claves:Autores:Carlos Sierra, J. M. Menéndez-Aguado, Peña ElizabethFuentes:scopusMultivariate study of trace element distribution in the geological record of Roñanzas Peat Bog (Asturias, N. Spain). Paleoenvironmental evolution and human activities over the last 8000calyr BP
ArticleAbstract: Trace element concentrations in the Roñanzas peat bog record reveal a contribution of natural procesPalabras claves:Multivariate statistics, Northern Spain, Peat bog, Pollution, Trace elementsAutores:Carlos Sierra, Gallego J.R., Llamas J.F., Ortiz J.E., Torres T.Fuentes:scopusSediment particle size distributions apportionment by means of functional cluster analysis (FCA)
ArticleAbstract: The development of mathematical models for cluster creation has been addressed by scientists in manyPalabras claves:CLÚSTER ANALYSIS, Detrital sediment, functional data analysis, Particle size distributionAutores:Carlos Sierra, Ordóñez C., Ruiz Barzola OmarFuentes:scopus