Early Permian post-glacial bivalve faunas of the Itararé Group, Paraná Basin, Brazil: Paleoecology and biocorrelations with South American intraplate basins

2014 ◽  
Vol 52 ◽  
pp. 203-233 ◽  
Author(s):  
Jacqueline Peixoto Neves ◽  
Luiz Eduardo Anelli ◽  
Marcello Guimarães Simões
Keyword(s):  
South American ◽  
Early Permian ◽  
Paraná Basin ◽  
Parana Basin

scholarly journals Charcoal remains from a tonstein layer in the Faxinal Coalfield, Lower Permian, southern Paraná Basin, Brazil

2011 ◽  
Vol 83 (2) ◽  
pp. 471-481 ◽  
Author(s):  
André Jasper ◽  
Dieter Uhl ◽  
Margot Guerra-Sommer ◽  
Abdalla M. B Abu Hamad ◽  
Neli T. G Machado
Keyword(s):  
Lower Permian ◽  
Published Data ◽  
Early Permian ◽  
Ash Fall ◽  
Potential Source ◽  
Volcanic Events ◽  
Paraná Basin ◽  
Surrounding Areas ◽  
Parana Basin

Fossil charcoal has been discovered in the Faxinal Coalfield, Early Permian, Rio Bonito Formation, in the southernmost portion of the Paraná Basin, Brazil. Three types of pycnoxylic gymnosperm woods recovered from a single tonstein layer are described and confirm the occurrence of paleowildfire in this area. A decrease of the charcoal concentration from the base to the top within the tonstein layer indicates that the amount of fuel declined during the deposition probably due to the consumption of vegetation by the fire. The presence of inertinite in coals overlying and underlying the tonstein layer indicates that fire-events were not restricted to the ash fall interval. The integration of the new data presented in the current study with previously published data for the Faxinal Coalfield demonstrates that volcanic events that occurred in the surrounding areas can be identified as one potential source of ignition for the wildfires. The presence of charcoal in Permian sediments associated with coal levels at different localities demonstrates that wildfires have been relatively common events in the peat-forming environments in which the coal formation took place in the Paraná Basin.

Thermal and depositional history of Early-Permian Rio Bonito Formation of southern Paraná Basin – Brazil

2020 ◽  
Vol 228 ◽  
pp. 103554
Author(s):  
Marcos Müller Bicca ◽  
Wolfgang Kalkreuth ◽  
Taís Freitas da Silva ◽  
Christie Helouise Engelmann de Oliveira ◽  
Frederico Antonio Genezini
Keyword(s):  
Early Permian ◽  
Depositional History ◽  
History Of ◽  
Paraná Basin ◽  
Parana Basin

Hierarchy of tectonic control on stratigraphic signatures: Base-level changes during the Early Permian in the Paraná Basin, southernmost Brazil

2006 ◽  
Vol 22 (3-4) ◽  
pp. 185-204 ◽  
Author(s):  
Michael Holz ◽  
Juliano Küchle ◽  
Ruy Paulo Philipp ◽  
Alan Patrick Bischoff ◽  
Naoki Arima
Keyword(s):  
Early Permian ◽  
Tectonic Control ◽  
Base Level ◽  
Paraná Basin ◽  
Parana Basin

scholarly journals Progress on the palynostratigraphy of the Permian strata in Rio Grande do Sul State, Paraná Basin, Brazil

2005 ◽  
Vol 77 (2) ◽  
pp. 353-365 ◽  
Author(s):  
Paulo A. Souza ◽  
Marleni Marques-Toigo
Keyword(s):  
Rio Grande ◽  
Middle Permian ◽  
Early Permian ◽  
Rio Grande Do Sul ◽  
Reference Sections ◽  
New Material ◽  
Paraná Basin ◽  
Parana Basin

A review of published papers and results of analysis of new material have allowed improvements on the palynostratigraphy of the Permian strata of the Paraná Basin in Rio Grande do Sul State. Based on first and last occurrences of certain species of pollen taxa, two palynozones are formalized, these are the Vittatina costabilis and Lueckisporites virkkiae Interval Zones, in ascending order. The Vittatina costabilis Interval Zone is subdivided into two units, in ascending order the Protohaploxypinus goraiensis and the Hamiapollenites karrooensis Subzones, and is recognized from the glacial (Itararé Group) and post-glacial sequence (Rio Bonito Formation and the base of the Palermo Formation). The Lueckisporites virkkiae Interval Zone occurs from the uppermost Rio Bonito Formation, through the Palermo and Irati formations, and into the Serra Alta and Teresina formations. The main characteristics and reference sections are established, as well as additional criteria to recognize biostratigraphical units, in accordance with the International Stratigraphic Guide. Palynostratigraphical correlation suggests that the Vittatina costabilis Zone concerns the Early Permian (early Cisuralian), while the Lueckisporites virkkiae is regarded as late Early Permian to early Middle Permian (late Cisularian to early Guadalupian).

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