Evolução sedimentar miocênica nos estados do Pará e Maranhão

Rossetti, Dilce de Fátima

doi:10.5327/s1519-874x2006000300003

Cited by 40 publications

(29 citation statements)

References 8 publications

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“…This viewpoint changed radically, when Arai et al (1988) reported marine fossils in Miocene strata of the Barreiras Group. Furthermore, the evidence of marine sedimentation came to be recognized also from sedimentary structures generated by tidal flows (Rossetti et al 1989;Costa et al 1993;Truckenbrodt et al 1994) and from ichnofossils produced by neritic organisms (Costa et al 1993;Rossetti 2006).…”

Section: Letter To the Editormentioning

confidence: 99%

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

Arai

2016

Braz. J. Geol.

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Section: Letter To the Editormentioning

confidence: 99%

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

Arai

2016

Braz. J. Geol.

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“…Fernandes 1984;Góes et al 1990). In this paper, the Pirabas Formation is interpreted as a unit within the Barreiras Group though many authors still interpret these as separate units (e.g., Arai et al 1988;Góes et al 1990;Rossetti 2006).…”

Section: Geological Settingmentioning

confidence: 99%

The first record record of the comatulid crinoid Sievertsella Radwańska, 2003 and its implications for the Miocene of the Bragança-Viseu Basin, Brazil

Manso

Souza-Lima²

2017

Acta Geologica Polonica

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ABSTRACT:Castro Manso, C.L. and Souza-Lima, W. 2017. The first record record of the comatulid crinoid Sievertsella Radwańska, 2003 and its implications for the Miocene of the Bragança-Viseu Basin, Brazil. Acta Geologica Polonica, 67 (3), 425-432. Warszawa.The first record of a comatulid crinoid Sievertsella cf. polonica (Radwańska, 1987), from the Pirabas Formation (Miocene of NE Brazil) is documented. The record points out to a shallow coastal tropical or subtropical paleoecosystem with rocks or reefs in the Miocene from Bragança-Viseu Basin on Brazilian equatorial margin.

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“…Some authors (Suguio and Nogueira 1999, Arai 2006, Rossetti 2006b) commented that a marine transgression should be also reported in northeastern Brazil, though no data have been provided to sustain this claim. In addition, Salim et al (1975) and Menezes et al (1998) documented marine influenced deposits in the Barreiras Formation exposed in the eastern coast of the State of Rio Grande do Norte.…”

Section: Introductionmentioning

confidence: 99%

Marine influence in the Barreiras Formation, State of Alagoas, northeastern Brazil

Rossetti

Góes

2009

An. Acad. Bras. Ciênc.

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Tidal processes were important for deposition of the Barreiras Formation located in northern Brazil, while correlatable deposits in northeastern Brazil have been traditionally related to continental environments. Facies analysis in southern Alagoas revealed that the Barreiras Formation consists of cross-stratified conglomerates and sandstones (facies Sx and Cgx), compound cross-stratified sandstones (facies Cx), and heterolithic beddings (facies H). A significant portion of these deposits occurs within channel morphologies displaying fining and thinning upward successions. An abundance of sedimentary features is comparable to those from the northern Brazilian counterpart. These include: tidal bundles; herringbone cross-stratification; heterolithic beddings with sandstone and mudstone beds in sharp contacts; and ichnofossils mostly consisting of Ophiomorpha nodosa, Skolithos and Planolites. Altogether, these features point to a marginal marine depositional setting dominated by tidal processes, which are related to an estuarine system, an interpretation also provided for the Barreiras Formation in northern Brazil. The widespread occurrence of deposits with unambiguous evidence of tidal processes in the Barreiras Formation of northern Brazil, and now in the State of Alagoas, leads to argue that the early/middle Miocene worldwide marine transgression might have left a much more widespread sedimentary record along the Brazilian coast than currently regarded.

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Evolução sedimentar miocênica nos estados do Pará e Maranhão

Cited by 40 publications

References 8 publications

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

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

The first record record of the comatulid crinoid Sievertsella Radwańska, 2003 and its implications for the Miocene of the Bragança-Viseu Basin, Brazil

Marine influence in the Barreiras Formation, State of Alagoas, northeastern Brazil

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