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Article(10)
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Geochemical Journal(2)
Boletin de Geologia(1)
Estudios Geologicos(1)
Journal of Coastal Research(1)
Journal of South American Earth Sciences(1)
Assessment of the oil source-rock potential of the Pedregoso Formation (Early Miocene) in the Falcón Basin of northwestern Venezuela
ArticleAbstract: The early Miocene Pedregoso Formation is one of the numerous formations rich in organic matter withiPalabras claves:Biomarkers, Carbonate turbidites, Catagenesis, Falcón Basin, geochemistry, Organic matter, Redox conditions, Thermal maturity, VENEZUELAAutores:Gonzalo Márquez, Gutiérrez-Martín J.V., Manuel Martínez, Montero-Serrano J.C., Riboulleau A., Tribovillard N.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 correlation between oils and rocks of the petroleum system of the Santa Elena peninsula and the gulf of Guayaquil
ArticleAbstract: The southeastern of the Ecuadorian coast is a traditionally oil producing region, but the petroleumPalabras claves:ECUADOR, geochemistry, Gulf of Guayaquil, Source rock, Thermal maturityAutores:Antonio Morato Medina, Cristian Paul Álvarez-Domínguez, Érica Lorenzo, Manuel Martínez, Paulo Escandón-Panchana, Wladimir Andrés Roca-BeltránFuentes: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: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: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: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: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: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:scopusThe effects of sulfur on the weathering extent of carbon. A companson of two mines in Hato de la Virgin, State of Tachira, Venezuela
ArticleAbstract: Ten bituminous coal samples, showing several weathering levels, were collected at different depths iPalabras claves:Coal, geochemistry, OXIDATION, Sulfur, VENEZUELA, WeatheringAutores:Escobar M., Esteves I.H., Galarraga F., González R., Manuel MartínezFuentes:scopus