scholarly journals OIL GENERATION POTENTIAL ASSESSMENT AND PALEOENVIRONMENTAL INTERPRETATION OF IRATI FORMATION (LOWER PERMIAN) IN NORTHWESTERN OF PARANÁ BASIN (BRAZIL)

2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Rosane Dos Santos Euzébio ◽  
Darlly Erika Silva dos Reis ◽  
Marco António Ruivo de Castro e Brito ◽  
Sérgio Bergamaschi ◽  
Maria Virgínia Alves Martins Alves Martins ◽  
...  
Keyword(s):  
Lower Permian ◽  
Irati Formation ◽  
Oil Generation ◽  
Paleoenvironmental Interpretation ◽  
Paraná Basin ◽  
Parana Basin

scholarly journals FACIES ANALYSIS APPLIED TO IRATI FORMATION IN THE NORTHERN AREA OF THE PARANÁ BASIN, GOIÁS STATE – A CONTRIBUTION FOR A DEPOSITIONAL MODEL

2019 ◽  
Vol 4 (1) ◽  
pp. 72-89
Author(s):  
Andressa Azevedo Oishi ◽  
Egberto Pereira ◽  
Lucas Pinto Heckert Bastos ◽  
Daniel Galvão Carnier Fragoso
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
High Energy ◽  
Lower Permian ◽  
Organic Carbon Content ◽  
Facies Association ◽  
Geological Processes ◽  
Irati Formation ◽  
Paraná Basin ◽  
Parana Basin

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 were developed at Irati Formation in the south and southeast part of Brazil, a better comprehension of the geological processes that took place in the northern portion is still necessary. In this sense, we present a detailed sedimentological analysis coupled with organic carbon content for the Permian rocks of Paraná Basin at Goiás State. Based on sedimentological descriptions, six facies association, including low to high energy facies, were described and interpreted as deposits of an inner to outer ramp domains of a homoclinal ramp system. Our data also indicate a relationship between changes in facies association and organic carbon content variation. TítuloANÁLISE DE FACIES SEDIMENTARES APLICADA À FORMAÇÃO IRATI NA ÁREA NORTE DA BACIA DO PARANÁ, GOIÁS - UMA CONTRIBUIÇÃO PARA O MODELO DE DEPOSIÇÃOResumoA Formação Irati (Permiano inferior da Bacia do Paraná, Brasil) é uma unidade litoestratigráfica caracterizada pela alternância rítmica de carbonatos, folhelhos e margas, considerados depósitos de baixa energia intercalados pela deposição eventual de tempestitos. Apesar de terem sido efetuados muitos estudos na Formação Irati, no sul e sudeste do Brasil, ainda é necessária uma melhor compreensão dos processos geológicos que ocorreram na sua porção norte. Por isso, este trabalho apresenta uma análise sedimentológica detalhada associada ao teor de carbono orgânico em rochas do Permiano da Bacia do Paraná, no estado de Goiás. Com base em descrições sedimentológicas, seis associações de fácies, incluindo fácies de baixa a elevada energia, foram consideradas depósitos de rampa interna a externa, de um sistema de rampa homoclinal. Os dados obtidos permitem também analisar a relação entre mudanças na associação de fácies e a variação do conteúdo de carbono orgânico sedimentar. Palavras-chave: Bacia do Paraná. Formação Irati. Análise de fácies sedimentares. Associação de fácies. Sistema deposicional.

Biomarkers stratigraphy of Irati Formation (Lower Permian) in the southern portion of Paraná Basin (Brazil)

2018 ◽  
Vol 95 ◽  
pp. 110-138 ◽  
Author(s):  
Darlly E.S. dos Reis ◽  
René Rodrigues ◽  
John M. Moldowan ◽  
Cleveland M. Jones ◽  
Marco Brito ◽  
...  
Keyword(s):  
Lower Permian ◽  
Irati Formation ◽  
Paraná Basin ◽  
Parana Basin

scholarly journals Chromans as Signals of Freshwater Incursions Promoting Salinity Stratification in the Lower Permian Irati Formation, ParanÁ Basin

2019 ◽  
Author(s):  
L.L. Martins ◽  
H.-M. Schulz ◽  
H.J.P. Severiano Ribeiro ◽  
E.S. de Souza ◽  
C.A. do Nascimento ◽  
...  
Keyword(s):  
Lower Permian ◽  
Salinity Stratification ◽  
Irati Formation ◽  
Paraná Basin ◽  
Parana Basin

Organic geochemical signals of freshwater dynamics controlling salinity stratification in organic-rich shales in the Lower Permian Irati Formation (Paraná Basin, Brazil)

2020 ◽  
Vol 140 ◽  
pp. 103958
Author(s):  
Laercio Lopes Martins ◽  
Hans-Martin Schulz ◽  
Hélio Jorge Portugal Severiano Ribeiro ◽  
Caroline Adolphsson do Nascimento ◽  
Eliane Soares de Souza ◽  
...  
Keyword(s):  
Lower Permian ◽  
Salinity Stratification ◽  
Irati Formation ◽  
Paraná Basin ◽  
Parana Basin

Not a lycopsid but a cycad-like plant: Iratinia australis gen. nov. et sp. nov. from the Irati Formation, Kungurian of the Paraná Basin, Brazil

2021 ◽  
Vol 289 ◽  
pp. 104415
Author(s):  
Rafael Spiekermann ◽  
André Jasper ◽  
Anelise Marta Siegloch ◽  
Margot Guerra-Sommer ◽  
Dieter Uhl
Keyword(s):  
Irati Formation ◽  
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.

scholarly journals 3D implicit modeling applied to the evaluation of CO2 geological storage in the shales of the Irati Formation, Paraná Basin, Southeastern Brazil

2021 ◽  
Author(s):  
Saulo B. de Oliveira ◽  
Colombo C. G. Tassinari ◽  
Richardson M. A-A. ◽  
Ignacio Torresi
Keyword(s):  
Black Shales ◽  
Hydrocarbon Exploration ◽  
Southeastern Brazil ◽  
Geological Storage ◽  
Spatial Continuity ◽  
Irati Formation ◽  
Aquifer Systems ◽  
Paraná Basin ◽  
Implicit Modeling ◽  
Parana Basin

Abstract The Paris Agreement established global ambitious targets for reducing carbon dioxide (CO2) emissions, requiring the rapid and extensive development of low carbon technologies, and one of the most efficient is CO2 geological storage. Among the deep geological formations used for CO2 storage, the shale layers have been a new emerging topic showing to be efficient because they are abundant and have a high content of organic matter, being favorable for CO2 retention. However, one of the challenges in evaluating a location for possible reservoirs is the adequate geological characterization and storage volume estimates. This research evaluated the Irati Formation of the Paraná Basin, through the information from hydrocarbon exploration wells in Southeastern Brazil, where most stationary sources of carbon emissions are located. Three-dimensional (3D) implicit modeling techniques were applied not only for the volume calculation purpose, but also in the site selection stage, generating thematic 3D models of thickness, depth, structures, and distance to aquifer systems. The limestones, shales, and black shales of the Irati Formation were locally divided into six units according to geological composition and spatial continuity. The E black shale unit was considered for CO2 geological storage indicating a theoretical capacity of 1.85 Gt of CO2. The potential of the achieved capacity is promising not only for been greater than the total of CO2 locally produced but also for supporting the implantation of new projects in this region.

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