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Geochemical 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: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:scopusOrigin and biodegradation of crude oils from the northernmost fields in the bolivar coastal complex (Zulia State, Venezuela)
ArticleAbstract: The organic geochemical features of 30 sampled oils from the northern Bolivar Coastal Complex (LakePalabras claves:Biodegradation scales, Bolivar Coastal Complex, Mixed oils, QEDA analysis, Source faciesAutores:Boente C., Escobar M., Gonzalo Márquez, Guerrero B., Marín P., Permanyer A., Romero E., Sánchez A.B.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