Facies architecture and sequence stratigraphy of an early post-rift fluvial succession, Aptian Barbalha Formation, Araripe Basin, northeastern Brazil

Scherer, Claiton Marlon dos Santos; Goldberg, Karin; Bardola, Tatiana Pastro

doi:10.1016/j.sedgeo.2015.03.010

Cited by 101 publications

(54 citation statements)

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“…According to the hypothetical paleogeographic scenario proposed by Arai (2014), the seawaters advanced towards the continental interior in a complete opposite direction of the contemporaneous flowing rivers of the Araripe and Tucano basins. Hundreds of paleocurrent data measured from distinct outcrops in the Aptian fluvial deposits of the Barbalha Formation, Araripe Basin (Assine 1994, Chagas et al 2007, Scherer et al 2015, and in the Marizal Formation, Tucano Basin (Rolim & Mabesoone 1982, Figueiredo et al 2015, indicate a consistent paleoflow towards south and southeast. Considering that the sea transgressions are constrained by the continental drainage, the paleocurrents of Aptian fluvial deposits strongly suggest that the marine transgression advanced towards the continent throughout fluvial valleys, from the Recôncavo-Tucano basin back to the watersheds located at north and northwest (Assine 1994).…”

Section: Letter To the Editormentioning

confidence: 96%

Comments on paper by M. Arai "Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective"

et al. 2016

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Section: Letter To the Editormentioning

confidence: 96%

Comments on paper by M. Arai "Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective"

et al. 2016

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“…Facies analysis indicates that large‐scale fining‐upward cross‐strata and horizontal cross‐strata, bounded by erosive surfaces, may have been deposited during migration of sand bars downstream and are associated with vertical aggradation in fluvial channels (Bridge, ; Jo & Chough, ;Miall, ; Scherer, Goldberg, & Bardola, ). Stratified conglomerates can be formed during migration of longitudinal bars in low sinuosity gravelly fluvial channels (Jo & Chough, ; Therrien, ).…”

Section: Resultsmentioning

confidence: 99%

“…The lenticular sandstones with basal erosional surface and unidirectional palaeocurrents can be interpreted as a fluvial channel system (Miall, ). Limited lateral accretion with vertical aggradation suggests low sinuosity channels with relatively low lateral migration (Miall, ; Scherer, Goldberg, & Bardola, ). Analysis of the equivalent horizons on seismic data and attribute maps in the Khangiran Field shows low‐sinuosity rivers at that time (Figure e).…”

Section: Resultsmentioning

confidence: 99%

“…The occurrence of reddish fine‐grained lithofacies associated with thin sandstone facies and palaeosols is interpreted as a floodplain deposit. The reddish colour and occurrence of calcretes indicate oxidation and development of palaeosols in arid to semiarid climatic conditions (Ghazi & Mountney, ; Jo & Chough, ; Moussavi‐Harami, Mahboubi, Nadjafi, Brenner, & Mortazavi, ; Scherer, Goldberg, & Bardola, ). The floodplain was expanded during deposition of the lower and upper Shurijeh Formation in the gas fields.…”

Section: Resultsmentioning

confidence: 99%

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Facies analyses and depositional setting of the Lower Cretaceous Shurijeh–Shatlyk formations in the Kopeh Dagh–Amu Darya Basin (Iran and Turkmenistan)

et al. 2018

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The Lower Cretaceous siliciclastic fluvial to shallow marine Shurijeh-Shatlyk formations together form one of the main reservoir successions in the Kopeh Dagh-Amu Darya Basin (NE Iran, Turkmenistan, and north of Afghanistan). Sedimentary facies and thickness changes in the Shurijeh-Shatlyk formations show complex variations throughout the basin, which highlight the importance of understanding the controlling factors on facies distribution and depositional setting for future hydrocarbon exploration. Integration of 3D seismic data, 13 boreholes, and five surface stratigraphic sections led to identification of lithofacies and facies associations. The results allow subdivision of this siliciclastic succession into four stratigraphic units (A, B, C, and D). Our study indicates that base-level changes interacted with palaeotopography inherited from Middle Jurassic basin rifting, Upper Jurassic carbonate reefs/patch reef distributions, and reactivation of the deep basin faults, to control the Shurijeh-Shatlyk depositional setting and sedimentary facies distribution. Our findings show that the Aghdarband and Badkhyz-Maimana palaeo-highs affected the Kopeh Dagh-Amu Darya Basin throughout deposition of the Shurijeh-Shatlyk formations. Allogeneic processes and active tectonics, related to the Valanginian Late Cimmerian Orogeny, caused a base-level fall, exposure of Upper Jurassic carbonate sediments, and deposition of a carbonate pebbly conglomerate unit in the western part of the study area. This base-level fall led to the deposition of thick evaporites in the western area and conglomerate in the eastern parts of the Kopeh Dagh. Due to a Hauterivian sea-/ base-level rise, several deltas formed in the basin, which form the main reservoir zone in the Murgab Depression and Khangiran Field in Turkmenistan and Iran.

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“…Com base no exposto, interpreta-se a inexistência de discordâncias significantes (regionais) entre as formações Santana e Barbalha, de modo que as unidades seriam contemporâneas, com empilhamento vertical explicado por retrogradação, ao menos até o topo do Membro Crato, na transição Aptiano-Albiano da bacia do Araripe. A mesma ideia é compartilhada por Neumann (1999) e Scherer et al (2015).…”

Section: Considerações Estratigráficasunclassified

Análise de fácies e petrografia de uma seção do Membro Crato em Nova Olinda (CE): contribuições à história deposicional e diagenética do neoaptiano na Bacia do Araripe

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Azevedo

Nascimento

et al. 2017

Geol. USP. Sér. Cient.

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Na Bacia do Araripe, o Membro Crato é uma das mais importantes unidades estratigráficas por seu conteúdo fossilífero, seu contexto análogo ao das “Camadas Pré-Sal” e seu aproveitamento econômico como material de revestimento. Neste trabalho, análises de fácies e petrográficas foram combinadas no estudo de uma seção do Membro Crato em Nova Olinda (CE), com o intuito de investigar sua história deposicional e diagenética. Para tanto, a faciologia de uma seção colunar contínua de cerca de 70 m de espessura foi analisada com a coleta de 13 amostras de rochas carbonáticas, siliciclásticas e evaporíticas. As amostras foram analisadas por petrografia ótica. Foram descritas cinco fácies deposicionais: lamito margoso (Lm), calcilutito laminado (Cl), arenito maciço (Am), siltito com laminação cruzada cavalgante (Scc) e evaporito colunar (Ec). As fácies mais espessas e recorrentes foram interpretadas como lacustres (Lm, Cl), seguidas de sucessões aluviais (Am, Scc) em meio aos intervalos lacustres. A sucessão termina com indícios faciológicos de que condições de extrema aridez (Ec) foram atingidas ao final do intervalo descrito. A petrografia, aqui focada em rochas das fácies Cl, Am e Scc, reforça a ideia de que o intervalo do Aptiano local correspondia a um sistema lacustre árido, eventualmente alimentado por fluxos aluviais imaturos a partir de áreas-fontes próximas. Em particular, o baixíssimo grau de compactação mecânica e cimentação incipiente das rochas terrígenas sugere que a sucessão foi pouco afetada por diagênese após seu soterramento, que foi, por essa razão, pouco profundo. A semelhança dos intervalos terrígenos do Membro Crato com aqueles descritos para a porção final da sotoposta Formação Barbalha sugere contemporaneidade com passagem transicional retrogradante entre as duas unidades.

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Facies architecture and sequence stratigraphy of an early post-rift fluvial succession, Aptian Barbalha Formation, Araripe Basin, northeastern Brazil

Cited by 101 publications

References 46 publications

Comments on paper by M. Arai "Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective"

Comments on paper by M. Arai "Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective"

Facies analyses and depositional setting of the Lower Cretaceous Shurijeh–Shatlyk formations in the Kopeh Dagh–Amu Darya Basin (Iran and Turkmenistan)

Análise de fácies e petrografia de uma seção do Membro Crato em Nova Olinda (CE): contribuições à história deposicional e diagenética do neoaptiano na Bacia do Araripe

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