Cenozoic folding in the Cumuruxatiba basin, Brazil: An approach to the deformation trigger by the Abrolhos magmatism

Ferreira, Talles Souza; Araújo, Maria Rizoneide Negreiros de; Silva, Fernando César Alves da

doi:10.1016/j.marpetgeo.2014.02.012

Cited by 9 publications

(3 citation statements)

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“…In the ESB, reservoir-prone elements reveal changing architectures through time as a function of the interaction between salt-controlled topography, the emplacement of the volcanic Abrolhos Bank, and external factors influencing sediment supply to the basin (Fiduk et al, 2004;Mohriak, 2003;Mohriak, 2005;Mohriak et al, 2012). The most important combination of tectonic and depositional events occurred during the mid-Eocene-Oligocene times in the ESB, when intense volcanic activity, tectonic uplift and associated sediment input resulted in widespread halokinesis (Ferreira et al, 2014;Mohriak et al, 2012). These events altered basin morphology, forcing a shift in the strike of the continental slope from N-S to E-W in the northern part of the ESB (Fig.…”

Section: Distribution Of Compartmentalised Sand-prone Strata In the Esbmentioning

confidence: 99%

Spatial and dimensional relationships of submarine slope architectural elements: A seismic-scale analysis from the Espírito Santo Basin (SE Brazil)

Gamboa

Alves

2015

Marine and Petroleum Geology

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Section: Distribution Of Compartmentalised Sand-prone Strata In the Esbmentioning

confidence: 99%

Spatial and dimensional relationships of submarine slope architectural elements: A seismic-scale analysis from the Espírito Santo Basin (SE Brazil)

Gamboa

Alves

2015

Marine and Petroleum Geology

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“…The sialic mass accumulated during the formation of the supercontinent Pangea started at the beginning of the Cretaceous (Bozhko, 2009). To the south of the Cumuruxatiba basin, because the continental crust was less thick, there was invasion of basaltic lava that filled the first depressions of this primitive fracturing (Ferreira et al, 2014). To the north, however, the crust, being thicker, prevented the basaltic effluvium and the basins evolved simply as a terrigenous-, and later, evaporites-and carbonates-fill basin.…”

Section: The Rift Phase and Its Importance In The Development Of The mentioning

confidence: 99%

“…The Recôncavo Basin exhibits a sedimentary column that reaches seven thousand meters in thickness, formed exclusively by terrigenous sediments (Ferreira et al, 2014). The faulted margin of the basin exhibits a conglomerate wrap that exceeds five kilometers in width.…”

Section: The Rift Phase and Its Importance In The Development Of The mentioning

confidence: 99%

Stratigraphic Analysis of the Aratu Stage (Lower Cretaceous), Recôncavo Basin (Brazil), With Hydrocarbon Reservoir Rocks

et al. 2019

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The section between the 7 and 11 electric markers in the Aratu Stage of the Recôncavo Basin (Lower Cretaceous) has been studied in order to perform a stratigraphic analysis. This section bear reservoir rocks known as Imbé, Cambuqui and Miranga sandstones. It produces petroleum in fields like Miranga, Araçás, Taquipe, Miranga Norte and Imbé.The isopach map showed a general trend of increased subsidence for south and southeast. A series of structural lows surround the platform region known as Quiricó High. Southwestward, the Taquipe Canyon is an indication of the lake deepening in that region.In terms of depositional systems, it was interpreted that the Aratu Stage presented a river-dominated deltaic system all over its depositional history. In the proximal regions, located to the north and northwest, the main facies belong to the fluvial and delta plain associations and to the delta front and prodelta in the most distal system. The isolithic map and the sand percentage map indicates a main axial sand distribution. The main sedimentary inflow comes from north and northwest. Near the southeastern faulted border there is a slight contribution from the alluvial fans attached to the Salvador fault.As a natural consequence, the stratigraphic sections showed a decrease of sand south and southeastward as well as the Spontaneous Potential (SP) logs indicate a progressive change from fluvial (normal bell shapes) to deltaic patterns (inverted bell shapes).The sedimentary cyclicity is strongly depicted in the Aratu section. Part of it can be observed in resistivity and SP logs, where auto-correlation can be obtained. Peaks in the resistivity logs indicate lag deposits due to periodic lake flooding. The resistivity value, as a function of the thickness of ostracodal and fish remains calciferous sandstones and shales, allows to separate several orders of peaks (four to six orders). Conventional cyclicity analyses indicate clearly an orbital control due to precession and axial obliquity. The calculated sedimentation ratio is 60 cm/1000 years, and the time interval of 1.44 Ma for deposition of the entire section. ANÁLISE ESTRATIGRÁFICA DO ANDAR ARATU (CRETÁCIO INFERIOR), BACIA RECÔNCAVO (BRASIL), COM ROCHAS RESERVATÓRIO DE HIDROCARBONETOS Este trabalho efetua uma análise estratigráfica da seção entre os marcos elétricos 7 e 11, no Andar Aratu, da Bacia do Recôncavo (Cretáceo Inferior). Esta seção possui rochas reservatório conhecidas como arenitos de Imbé, Cambuqui e Miranga. Produz petróleo em campos como Miranga, Araçás, Taquipe, Miranga Norte e Imbé.O mapa de isopacas mostrou uma tendência geral de aumento da subsidência para o sul e sudeste. Uma série de baixos estruturais cercam a região da plataforma conhecida como a elevação Quiricó. A sudoeste, o canyon de Taquipe constitui uma indicação do aprofundamento do lago naquela região.Os dados obtidos indicam que o Andar Aratu apresentou um sistema deltaico dominado por rio em toda a sua história deposicional. Nas regiões proximais, localizadas a norte e noroeste, as principais facies pertencem às associações fluvial e planicie deltaica, marcando a área mais distal do sistema deposicional, a frente deltaica e o prodelta. O mapas de isolinhas e de percentagem de areia indicam que a distribuição de areia é sobretudo axial. O principal influxo sedimentar vem do norte e do noroeste. Perto da fronteira com a falha do sudeste há uma pequena contribuição de leques aluviais associados à falha de Salvador.Como consequência natural, as seções estratigráficas mostraram um decréscimo de areia para sul e sudeste. Os registros geofisicos de Potencial Espontâneo indicam uma mudança progressiva dos padrões fluviais (em forma de sino) para padrões deltaicos (em forma de sino invertido).A ciclicidade sedimentar é fortemente representada no Andar Aratu. Parte dela pode ser observada nos registros geofísicos de resistividade e de Potencial Espontâneo. Picos nos registros de resistividade indicam inundações periódicas do ambiente lacustre. O valor da resistividade, dependente da espessura de arenitos calcários e xistos com vestigions de ostracodes e peixes, permite separar várias ordens de picos (quatro a seis ordens). Análises de ciclicidade convencionais indicam claramente um controle orbital devido a precessão e obliquidade axial. A taxa de sedimentação calculada é de 60 cm / 1000 anos, correspondente ao intervalo de tempo de deposição de toda a seção (andar Aratu) de 1,44 Ma. Palavras-chave: Exploração de Petróleo. Mapas de Isopacas. Mapas de Isolinhas. Resistividade. Análises de Ciclicidade. Controle Orbital. Sistemas Deposicionais. Sistema Deltaico Dominado por Rio.

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The Abrolhos Magmatic Province, the largest postbreakup magmatism of the Eastern Brazilian margin

Stanton

Gordon

Valente

et al. 2022

Meso-Cenozoic Brazilian Offshore Magmatism

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Cenozoic folding in the Cumuruxatiba basin, Brazil: An approach to the deformation trigger by the Abrolhos magmatism

Cited by 9 publications

References 6 publications

Spatial and dimensional relationships of submarine slope architectural elements: A seismic-scale analysis from the Espírito Santo Basin (SE Brazil)

Spatial and dimensional relationships of submarine slope architectural elements: A seismic-scale analysis from the Espírito Santo Basin (SE Brazil)

Stratigraphic Analysis of the Aratu Stage (Lower Cretaceous), Recôncavo Basin (Brazil), With Hydrocarbon Reservoir Rocks

The Abrolhos Magmatic Province, the largest postbreakup magmatism of the Eastern Brazilian margin

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