Now showing items 1-10 of 10
Ediacaran discs from South America: probable soft-bodied macrofossils unlock the paleogeography of the Clymene Ocean
(Scientific Reports, 2016-07-27) [Artigo]
The origin, affinity and paleoecology of macrofossils of soft-bodied organisms of the terminal Ediacaran Period have been highly debated. Previous discoveries in South America are restricted to small shelly metazoans of ...
Rare Carboniferous and Permian glacial and non-glacial bryophytes and associated lycophyte megaspores of the Parana Basin, Brazil: A new occurrence and paleoenvironmental considerations
(Journal Of South American Earth Sciences, 2016-12-01) [Artigo]
Fossil bryophytes are rare because their preservation is compromised by the presence of a thin cuticle (if any) and a lack of lignin. Except for the occurrence of one bryophyte in the glacial Dwyka Group of the Karoo Basin, ...
The 2009 earthquake, magnitude m(b) 4.8, in the Pantanal Wetlands, west-central Brazil
(Anais Da Academia Brasileira De Ciencias, 2016-09-01) [Artigo]
The main goal of this paper is to characterize the Coxim earthquake occurred in June 15th, 2009 in the Pantanal Basin and to discuss the relationship between its faulting mechanism with the Transbrasiliano Lineament. The ...
Avulsive rivers in the hydrology of the pantanal wetland
(Handbook of Environmental Chemistry, 2016-01-01) [Capítulo de livro]
This chapter presents and discusses the avulsive nature of the Pantanal rivers and shows how the ever-changing drainage network influences the surface hydrology and ecology. Besides, the systemic portrait here outlined ...
Evaluation of the toxicity and genotoxicity of percolated from sugarcane vinasse in Oreochromis niloticus (PISCES) by micronucleus test
(Toxicology Letters, 2016-10-01) [Resumo]
Optically stimulated luminescence and isothermal thermoluminescence dating of high sensitivity and well bleached quartz from Brazilian sediments: From Late Holocene to beyond the Quaternary?
(Brazilian Journal of Geology, 2016-06-01) [Artigo]
The development of optically stimulated luminescence (OSL) dating of sediments has led to considerable advance in the geochronology of the Quaternary. OSL dating is a well established technique to determine sediment burial ...
Geophysical modeling of the manganese deposit for Induced Polarization method in Itapira (Brazil)
(Geofisica Internacional, 2016-04-01) [Artigo]
This paper presents the results of the investigation of a supergene manganese occurrence in the southeast of Brazil, using the Induced Polarization geophysical method. This study aims to characterize the surface and ...
Geoelectric modeling of supergenic manganese ocurrence in heliodora region, Southern Minas Gerais
(Revista Brasileira de Geofisica, 2016-01-01) [Artigo]
This paper discusses the results of the combined application of Electric resistivity and Induced Polarization methods into a mineral occurrence of manganese of super-genic origin, characterized by oxides of manganese and ...
Untold muddy tales: Paleoenvironmental dynamics of a barren mudrock succession from a shallow Permian epeiric sea
(Journal Of South American Earth Sciences, 2016-11-01) [Artigo]
During the late Paleozoic, the intracratonic Parana Basin, Brazil, in central Gondwanaland, was covered by a huge (>1.600.000 km(2)), shallow and isolated epeiric sea. Within the Permian succession, oxygen deficient fades ...
Upper Aptian mixed carbonate-siliciclastic sequences from Tucano Basin, Northeastern Brazil: Implications for paleogeographic reconstructions following Gondwana break-up
(Cretaceous Research, 2016-12-01) [Artigo]
The evolution of the Cretaceous basins of the Brazilian northeastern hinterland was associated with the Gondwana rifting and opening of the South Atlantic Ocean. The first marine ingression in northeastern Brazil occurred ...