Mostrando 10 resultados de: 11
Filtros aplicados
Subtipo de publicación
Article(11)
Publisher
Journal of South American Earth Sciences(2)
Revista Tecnica de la Facultad de Ingenieria Universidad del Zulia(2)
Estudios Geologicos(1)
Geochemical Journal(1)
International Journal of Environmental Studies(1)
Área temáticas
Geología económica(5)
Química inorgánica(3)
Ciencias de la tierra(2)
Geología, hidrología, meteorología(2)
Aceites, grasas, ceras y gases industriales(1)
Área de conocimiento
Geoquímica(8)
Biogeografía(1)
Fertilidad del suelo(1)
Geografía(1)
Ingeniería química(1)
Origen
scopus(11)
Cu (II), Cd (II) and Zn (II) adsorption by the Cuare Mangrove Peat, Falcon State, in different degrees of artificial maturation
ArticleAbstract: The high adsorption capacity of peat for heavy metals constitutes a complex phenomenon of economic aPalabras claves:Adsorption, Artificial maturation, Heavy Metals, PeatAutores:Escobar M., Manuel Martínez, Martinez V., Reátegui K.Fuentes:scopusGeochemical behavior of molybdenum and its isotopes in the sedimentary environment - A bibliographic review
ArticleAbstract: Numerous studies have been devoted to trace metals and their value in assessing the paleoredox condiPalabras claves:geochemistry, Molybdenum isotopes, paleoenvironments, Paleoredox conditionsAutores:Garbán G., Manuel Martínez, Montero-Serrano J.C., Riboulleau A., Tribovillard N.Fuentes:scopusGeochemical study of products associated with spontaneous oxidation of coal in the Cerro Pelado Formation, Venezuela
ArticleAbstract: The aim of this research work is a geochemical, mineralogical, and textural characterization of sponPalabras claves:Ammonium thiosulfate, Bituminous coal, Clinker material, Fumarolic mineralizations northwestern Venezuela, Spontaneous oxidationAutores:Del Río J., Gonzalo Márquez, Hurtado A., Manuel Martínez, Sánchez F.J.A.Fuentes:scopusEffect of coal weathering on some geochemical parameters
ArticleAbstract: The effect of coal weathering on some geochemical parameters was studied. Seven pairs of fresh and aPalabras claves:Bitumen, Coal, floatability, geochemistry, humic substances, VENEZUELA, WeatheringAutores:Escobar M., Manuel MartínezFuentes:scopusEffect of temperature, oxidation time and substrate: Oxidant agent ratio in the yield and composition of humic acids derived from coal, monitored by <sup>1</sup>H NMR and FT-ir
ArticleAbstract: The yield and composition of coal-derived humic acids (AH) was studied, obtained by oxidation of a VPalabras claves:Coal, FT-ir, Humic acids, NMR, OXIDATION, WeatheringAutores:Contreras E., Leal E., Manuel MartínezFuentes:scopusDistribution and geochemical significance of biphenyls and related bicyclic aromatic structures in oils from Ancon oilfield (Tertiary Progreso Basin), Ecuador
ArticleAbstract: A set of oils from Ancon oilfield (Neogene Progreso Basin, Ecuador), were studied by GC-MS in termsPalabras claves:ANCON, Biphenyls, Cyclohexylbenzenes, Diphenylmethanes, ECUADORAutores:Antonio Morato Medina, Érica Lorenzo, Gamboa A., Manuel MartínezFuentes:scopusDistribution of trace elements in offshore sediments of the Orinoco Delta
ArticleAbstract: Surficial sediments from 56 stations on the Orinoco Delta offshore zone were analyzed by x-ray fluorPalabras claves:geochemistry, Heavy Metals, Surface sediments, VENEZUELA, X-ray fluorescenceAutores:Alfonso J.A., Benzo Z., Flores S., Manuel MartínezFuentes:scopusNon-parametric approach to analysing PAHs data in atmospheric settled particles: Valencia City, Venezuela
ArticleAbstract: Non-parametric statistics and cluster analysis have been found useful to evaluate differences/similaPalabras claves:Atmospheric, categorical, non-parametric, PAHs, Pollutants, VENEZUELAAutores:Esteves I.H., Fernàndez R., Gamboa A., Laurent-Singh C., Manuel MartínezFuentes:scopusPhysicochemical composition of acidic waters from two coal mines: Lobatera, Tachira State, Venezuela
ArticleAbstract: Groundwater pollution can derive from many sources, being acid coal mine drainage one of the most imPalabras claves:Acid waters, Geochemical weathering, leaching, pyrite, Water-coal interactionAutores:Manuel Martínez, Montero R.Fuentes:scopusTrace elements of Paleocene Táchira coals, Southwestern Venezuela: A geochemical study
ArticleAbstract: The concentration and distribution of 35 elements in 78 coal samples from the Táchira State coal fiePalabras claves:Coal, factor analysis, geochemistry, Trace elements, VENEZUELAAutores:Carmen Milena López, Escobar M., Esteves I.H., Galarraga F., González R., Manuel MartínezFuentes:scopus