Now showing items 11-20 of 42
Paleoecology and paleoenvironments of Permian bivalves of the Serra Alta Formation, Brazil: Ordinary suspension feeders or Late Paleozoic Gondwana seep organisms?
(Journal Of South American Earth Sciences, 2017-08-01) [Artigo]
This is the first record of a Permian seep deposit and an associated, morphologically bizarre, bivalve-dominated fauna from the Passa Dois Group, Parana Basin, Brazil. Shales of the outer-shelf facies of the Serra Alta ...
Permian woods with preserved primary structures from the southeast of Brazil (Irati Formation, Paraná basin)
(Palaeobiodiversity and Palaeoenvironments, 2018-09-01) [Artigo]
This research described fossil woods with preserved pith and primary xylem from strata of the Irati Formation (Artinskian) of the Paraná Basin (southeastern Brazil). The three specimens studied are all related to the ...
The Inventory of Geological Heritage of the State of So Paulo, Brazil: Methodological Basis, Results and Perspectives
(Geoheritage, 2018-06-01) [Artigo]
An inventory of geological sites based on solid and clear criteria is a first step for any geoconservation strategy. This paper describes the method used in the geoheritage inventory of the State of So Paulo, Brazil, and ...
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 ...
Sedimentary record of a fluctuating ice margin from the Pennsylvanian of western Gondwana: Parana Basin, southern Brazil
(Sedimentary Geology, 2015-08-01) [Artigo]
The Parana Basin is a key locality in the context of the Late Paleozoic Ice Age (LPIA) because of its location east of the Andean proto-margin of Gondwana and west of contiguous interior basins today found in western Africa. ...
Exhumed subglacial landscape in Uruguay: Erosional landforms, depositional environments, and paleo-ice flow in the context of the late Paleozoic Gondwanan glaciation
(Sedimentary Geology, 2018-07-01) [Artigo]
A well-exposed glacial surface sculpted on Precambrian crystalline basement rocks occurs below the glacial succession of the San Gregorio Formation on the eastern border of the Chaco-Parana Basin in Uruguay and was formed ...
Late Quaternary Cuiabá megafan, Brazilian Pantanal: Channel patterns and paleoenvironmental changes
(Quaternary International, 2017-05-05) [Artigo]
The Brazilian Pantanal wetlands comprise some of the largest Quaternary megafans in South America. The origin of these megafans has been linked to climate changes during the Late Quaternary. This study focuses on the Cuiabá ...
Tectonic and environmental controls on palaeozoic fluvial environments: Reassessing the impacts of early land plants on sedimentation
(Journal of the Geological Society, 2017-05-01) [Artigo]
The apparent increase in occurrence of meandering fluvial channel systems in the Middle Palaeozoic has long been related to the effects of land-plant colonization. However, evidence for meandering channels in non-vegetated ...