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12.812  Articles
1 of 1.282 pages  |  10  records  |  more records»
This paper describes the bivalve Modiolopsis (?) clarkei n. sp, coming from the Curva I outcrop, Ponta Grossa Formation. The species name was given in honor to J. M. Clarke, who first studied it. This fossil also occurs in the Durazno Group, in Uruguay, r... see more

The Irati Formation (Lower Permian of Paraná Basin) is a lithostratigraphic unit characterized by the rhythmic alternation between carbonates, shales, and marls, interpreted as low energy deposits with eventual storm deposition. Despite many studies that ... see more

This work analyzes the taphofloras collected from two Lower Devonian localities (PISA and Ponta Grossa/Carambeí) of the eastern border of the Paraná Basin (Southern Brazil). This association is of late Lochkovian age. It includes a large number of records... see more

This work analyses organic geochemistry (total organic carbon - TOC, total Sulphur - S and Rock Eval pyrolysis data) and detailed organic petrography results of the Eo-Permian interval (Rio Bonito Formation, Paraná Basin) in the Grande Candiota area, Rio ... see more

This work had as objective to monitor water quality in the Pirapó River basin, which is the main supply source to the city of Maringá, Paraná State, and adjacent regions. Five sampling spots were established downstream from the main creeks and streams of ... see more

A Bacia do Alto Iguaçu/Paraná, localizada no sul do Brasil, encontra-se exposta a riscos derivados das inundações, sobretudo nos meses de verão (dezembro, janeiro e fevereiro). Durante este período a bacia experimenta precipitações convectivas associadas ... see more

A Bacia do Alto Iguaçu/Paraná, localizada no sul do Brasil, encontra-se exposta a riscos derivados das inundações, sobretudo nos meses de verão (dezembro, janeiro e fevereiro). Durante este período a bacia experimenta precipitações convectivas associadas ... see more

The Rb-Sr method has been successfully applied to argillaceous sedimentary rocks in order to supply parameters for the definition of their depositional ages. In many studied cases, despite the geologically significant results, there are doubts concerning ... see more

The site of Morro do Papaléo in Mariana Pimentel town is one of the best outcrops of Rio Grande do Sul State, southern Brazil, both in terms of diversity and abundance of fossils plants. The record of plants with frond-like foliage for Permian strata of t... see more

1 of 1.282 pages  |  10  records  |  more records»