The basal siliciclastic Silurian-Devonian Tacaratu formation of the Jatobá basin: Analysis of facies, provenance and palaeocurrents

Carvalho, Rizelda Regadas de; Neumann, Volker; Fambrini, Gélson Luís; Assine, Mário Luís; Vieira, Marcela Marques; Rocha, Dunaldson Eliézer Guedes Alcoforado; Ramos, Germano Mário Silva

doi:10.1016/j.jsames.2018.07.004

Cited by 22 publications

(6 citation statements)

References 15 publications

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“…LA-ICP-MS dating of calcite slickenfibres from brittle fault plane yielded a Lower Cretaceous age (135 ± 4.7 Ma) for the brittle reactivation of the CNSZ. This age is overlapped by This age is overlapped by Early Cretaceous deposits that represent the lacustrine, fan delta and fluvio-eolic depositional systems that comprise the rift phase of the Jatobá Basin (Horn and Melo, 2016;Tomé et al, 2014;Carvalho et al, 2018). This sequence is interpreted as have been deposited in a failed intracontinental rift formed J o u r n a l P r e -p r o o f during the Gondwana break-up due to the opening of South Atlantic Ocean (Szatmari et al, 1987;Magnavita and Cupertino, 1988;Milani and Davison, 1988;Magnavita, 1992;Magnavita et al, 1994;Szatmari and Milani, 1999;Gordon et al, 2017;Heine et al, 2013).…”

Section: Basement Inheritance Structural Controlmentioning

confidence: 99%

The core of Rodinia formed by the juxtaposition of opposed retreating and advancing accretionary orogens

Martin

Spencer

Collins

et al. 2020

Earth-Science Reviews

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The Borborema Province (NE Brazil) is characterized by the development of continental-scale transcurrent shear zones related to the Neoproterozoic Brasiliano-Pan-African Orogeny. These shear zones commonly border Cretaceous intraplate sedimentary basins . This work presents a structural and microstructural study of the Cruzeiro do Nordeste shear zone (CNSZ), which limits the northern border of the Jatobá Basin. The ductile deformation of the CNSZ is marked by high-angle, ENE-trending foliation bearing subhorizontal stretching lineation, with numerous kinematic indicators J o u r n a l P r e -p r o o f showing dextral shearing. We documented a continuous transition from hightemperature (high-T) to low-temperature (low-T) (c. 650 °C to c. 300 °C) ductile fabrics characterized, at the high-T end, by quartz recrystallization by grain boundary migration and feldspar recrystallization by subgrain rotation, and, at the low-T end, by bulging recrystallization of quartz and extensive fracturing of feldspars. The cooler semi-brittle to brittle deformation superimposed on the mylonites is characterized by conjugate pairs of strike-slip mesoscopic faults. The orientation of these faults (WNW-ESE, dextral, and N-S, sinistral) suggests they were formed under the same stress field than the ductile fabrics and thus evidence a continuum deformational from the ductile to the brittle field associated with exhumation during transcurrent tectonics. Brittle reactivation of the CNSZ is characterized by normal faults overprinting the mylonitic foliation. We report a U-Pb age from fault-hosted calcite slickenfibres of 135 ± 4.7 Ma, which provides constraints on the timing of brittle reactivation that can be associated with opening of the South Atlantic Ocean.

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Section: Basement Inheritance Structural Controlmentioning

confidence: 99%

The core of Rodinia formed by the juxtaposition of opposed retreating and advancing accretionary orogens

Martin

Spencer

Collins

et al. 2020

Earth-Science Reviews

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“…Sousa et al ... Estudos Geológicos v 30(1) https://periodicos.ufpe.br/revistas/estudosgeologicos/index A litoestratigrafia foi subdividida nas tectonosequências Beta, Pré-Rifte, Rifte, Pós-Rifte e Zeta por Rocha & Amaral (2007), no entanto, este trabalho apresenta uma divisão litoestratigráfica baseada na proposta de Fambrini et al (2010de Fambrini et al ( , 2011, em base ao modelo de Prosser (1993) para a Bacia do Araripe e a modificação de Kuchle (2010) ao modelo citado e aplicação por Guzmán et al (2015) (Rocha, 2011). Depositada provavelmente no Siluro-Devoniano, a formação possui características típicas de ambiente fluvial entrelaçado (braided), associado, inicialmente, a leques aluviais, evoluindo para uma fácies mediana a distal, com características de planície de inundação e posterior retrabalhamento eólico (Rocha & Leite, 1999, Carvalho et al, 2018. Esta formação pode ser correlacionada ao Grupo Serra Grande, na Bacia do Parnaíba (Caputo & Crowell, 1985, Ghignone, 1972, Assine, 1992, 2007, Caixeta et al, 1994 e à Formação Cariri na Bacia do Araripe (Braun 1966).…”

Section: Contexto Geológico Regionalunclassified

Geologia Da Área Nordeste Da Folha Poço Da Cruz, Bacia De Jatobá, Nordeste Do Brasil

Souza¹,

Fambrini²,

Queiroz³

et al. 2020

Est. Geol.

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The Jatobá Basin is located in the south-central portion of Pernambuco state and northern Bahia and Alagoas, it has an area of approximately 5000 km² in a NE-SW preferred direction and sedimentary record has approximately 3 km. It is a rift basin developed under extensional tectonic events related to the rupture of the Gondwana supercontinent and it marks the northern limit of the aborted Recôncavo-Tucano-Jatobá rift system. The stratigraphic succession in the Campos district, Ibimirim (PE), comprises the Syneclise sequence and Rift Initiation sequence as well as part of the Rift Climax sequence of the basin. Using columnar sections and identifying sedimentary facies, six stratigraphic units were recognized, in addition to the quaternary coverage. The two lower fluvial-marine units are related to the siluro-devonian sedimentary records of the Syneclise sequence,while fluvial-eolic and lacustrine sediments of the upper units mark the Rift Initiation and Rift Climax sequences. The Aliança Formation, discussed in a particular way in this paper, represents the first sedimentary records of the beginning of the Neojurassic rift (Dom João stage). Since it was deposited in a lacustrine system, this formation has highly fossiliferous decimetric carbonate levels arranged in thick pelitic packages, suggesting deposition during times of energy variations within a shallow lake. The detailing of the stratigraphy of these deposits, associated with petrographic and paleontological studies, brings a new understanding of the depositional system that occurred in this environment and the first processes that started the opening of the rift during the Upper Jurassic.

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“…A Sequência Sinéclise é composta pelas formações Tacaratu e Inajá (Grupo Jatobá), e foi posicionada no Siluro-Devoniano (Braun, 1966;Barreto, 1968), podendo ser mais antiga (Carvalho et al, 2018). A primeira compreende camadas de arenitos grossos e conglomerados depositados preferencialmente em sistemas continentais (leques aluviais que gradam para sistemas fluviais entrelaçados .…”

Section: Contexto Geológico Regionalunclassified

Análise Faciológica E Deposicional Dos Depósitos Flúvio-Eólicos Da Formação São Sebastião (Eocretáceo), Região De Campos - Ibimirim, Bacia De Jatobá, Pe, Nordeste Do Brasil

et al. 2019

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A Bacia de Jatobá pertence ao denominado Rifte Recôncavo-Tucano-Jatobá, estrutura geotectônica constituída por extenso rifte abortado no Cretáceo durante as fases de fragmentação do Supercontinente Gondwana. Este trabalho enfoca inédita análise de facies e sistemas deposicionais da Formação São Sebastião (Eocretáceo). As facies foram identificadas segundo a litologia predominante, geometria dos corpos, estruturas sedimentares e padrão de paleocorrentes. As principais litofacies reconhecidas foram: (i) conglomerados sustentados pela matriz e arenitos grossos a médios, conglomeráticos com estratificações cruzadas acanaladas de pequeno porte, ou maciços; (ii) arenitos grossos a médios com estratificações cruzadas acanaladas de médio e grande porte; (iii) arenitos médios com boa seleção e estratificação plano-paralela e (iv) arenitos médios com estratificação cruzada tabular de médio porte, bem selecionados. As facies (i) foram interpretadas como geradas por sistemas fluviais entrelaçados efêmeros. O conjunto de facies (ii), (iii) e (iv) foi interpretado como originado em campo de dunas eólicas, lenções de areia eólica e interduna. A Formação São Sebastião representa a interação de dois sistemas deposicionais: eólico e fluvial. As características sedimentológicas dos arenitos da Formação São Sebastião indicam ambiente de sedimentação inicialmente fluvial, com posterior retrabalhamento por vento, e a superior, um ambiente desértico, tipicamente eólico, com interações fluviais.

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The basal siliciclastic Silurian-Devonian Tacaratu formation of the Jatobá basin: Analysis of facies, provenance and palaeocurrents

Cited by 22 publications

References 15 publications

The core of Rodinia formed by the juxtaposition of opposed retreating and advancing accretionary orogens

The core of Rodinia formed by the juxtaposition of opposed retreating and advancing accretionary orogens

Geologia Da Área Nordeste Da Folha Poço Da Cruz, Bacia De Jatobá, Nordeste Do Brasil

Análise Faciológica E Deposicional Dos Depósitos Flúvio-Eólicos Da Formação São Sebastião (Eocretáceo), Região De Campos - Ibimirim, Bacia De Jatobá, Pe, Nordeste Do Brasil

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