6 articles in this issue
Gabriel Soares de Almeida,Eduardo Duarte Marques,Francisco José da Silva,Claiton Piva Pinto,Emmanoel Vieira Silva-Filho
A new methodology based on a portable X-ray fluorescence (pXRF) was applied in this work to analyze the geochemical dispersion halo of a sulfide mineralization along the Bule Stream sediments (Ouro Branco, Minas Gerais State, Brazil). The study area, loca... see more
Lazaro Laut,Maria Virgina Alves Martins,Pierre Belart,Maria Lucia Lorini,Iara Clemente,Leandro Nogueira,Anna Juliace,Luiz Francisco Fontana
Bottom sediment is a natural trap for organic matter and different kinds of pollutants. The accumulation of large amount of organic matter gives rise to the eutrophication of the aquatic ecosystems. The analyses of the quantity and quality of the organic ... see more
Shéron Joyce Díaz Morales,Josefa Varela Guerra,Márcia Andréia da Silva Nunes,Ariadne Marra de Souza,Mauro César Geraldes
Sepetiba Bay located in Rio de Janeiro State (RJ), Southeast Brazil, is a region under heavy influence of seaports and mining. This feature puts at risk the quality of the local water system, especially due to the deposition of trace metals on the sedimen... see more
Guilherme Loriato Potratz,Felipe Saliba de Souza e Almeida,João Wagner de Alencar Castro,Maria Virginia Alves Martins,Mauro Cesar Geraldes
Paleoenvironmental reconstructions in coastal environments have been carried out using indicators of relative sea level oscillation (RSL), among them, mollusk shells, beachrocks and sedimentary records. Data from eleven geological-geotechnical drilling co... see more
Jorge Carlos Della Fávera,Hernani Aquini Fernandes Chaves,Marco André Malmann Medeiros,Jorge Tiago Lancates Villares,Sheila Fabiana Marcelino de Souza,Siana Soares de Oliveira,Maria Virginia Alves Martins
The section between the 7 and 11 electric markers in the Aratu Stage of the Recôncavo Basin (Lower Cretaceous) has been studied in order to perform a stratigraphic analysis. This section bear reservoir rocks known as Imbé, Cambuqui and Miranga sandstones.... see more
Márcio Inácio Alves,Bruna Saar de Almeida,Letícia Muniz da Costa Cardoso,Anderson Costa dos Santos,Ciro Appi,Anelise Losangela Bertotti,Farid Chemale,Armando Dias Tavares Jr,Maria Virginia Alves Martins,Mauro César Geraldes
The Lu-Hf method has been used in the investigation of geological samples in order to understand processes and sources of magmatic rocks. This paper discusses the reference materials GJ-01, 91.500 and Mud Tank isotopic composition by LA-ICP-MS to investig... see more