Mostrando 10 resultados de: 11
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Geochemical Journal(2)
Journal of South American Earth Sciences(2)
Revista de la Facultad de Ingenieria(2)
Sedimentary Geology(2)
Coal and Peat Fires: A Global Perspective(1)
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Geología, hidrología, meteorología(6)
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Origen
scopus(11)
Applying the ratio matching method in the correlation of sedimentary sequences and individual beds in a coal-bearing unit. Advantages and limitations of the technique
Conference ObjectAbstract: Conventional techniques employed in the correlation of sedimentary sequences or single beds make usePalabras claves:Autores:Esteves I.H., Gamboa A., Gutiérrez J.V., Manuel Martínez, Montero-Serrano J.C.Fuentes: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:scopusGeochemical signatures of bedded cherts of the upper La Luna Formation in Táchira State, western Venezuela: Assessing material provenance and paleodepositional setting
ArticleAbstract: Here we undertook an inorganic geochemical study of Cenomanian-Campanian bedded cherts (the TáchiraPalabras claves:Bedded chert, Depositional setting, Modified Murray diagram, Provenance, Táchira Ftanita memberAutores:Escobar M., Esquinas N., Garbán G., Gonzalo Márquez, Manuel Martínez, Rey O.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:scopusGeochemistry 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:scopusGeochemistry of the Mirador Formation (Late Eocene-Early Oligocene), southwestern Venezuela: Chemostratigraphic constraints on provenance and the influence of the sea level
ArticleAbstract: A geochemical study was carried out on Eocene-Lower Oligocene sedimentary rocks (the Mirador FormatiPalabras claves:Chemostratigraphy, geochemistry, paleoenvironments, Provenance, VENEZUELAAutores:Esteves I.H., Gutiérrez J.V., Manuel Martínez, Martínez A., Meléndez W., Reátegui K., Urbani F.Fuentes:scopusLa Cuesta, Lobatera, and Paso Diablo Coal Fires of Venezuela
Book PartAbstract:Palabras claves:Autores:Gonzalo Márquez, 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:scopusSedimentary chemofacies characterization by means of multivariate analysis
ArticleAbstract: Multivariate statistical analysis is applied to geochemical data from three sections forming part ofPalabras claves:Chemostratigraphy, Compositional data, Constrained cluster, geochemistry, Log-ratio transformation, Robust statisticsAutores:Gutiérrez-Martín J.V., Manuel Martínez, Martín-Fernández J.A., Montero-Serrano J.C., Palarea-Albaladejo J.Fuentes:scopusSedimentology and sedimentary geochemistry of El Paraíso Formation, Falcón basin, Venezuela
ArticleAbstract: This paper focuses on the sedimentary environment and sedimentary geochemistry of El Paraíso FormatiPalabras claves:Geochemical associations, Mouth bars, Oligocene, PRODELTA, Recycled orogenAutores:Alezones R., Ariza M., Gutiérrez J.V., Manuel Martínez, Rey O., Romero M., Vera R.Fuentes:scopus