Search Results - "NOGUEIRA, AFONSO C. R."

palaeobiogeographic model for biotic diversification within Amazonia over the past three million years by Ribas, Camila C, Aleixo, Alexandre, Nogueira, Afonso C. R, Miyaki, Cristina Y, Cracraft, Joel

“…Many hypotheses have been proposed to explain high species diversity in Amazonia, but few generalizations have emerged. In part, this has arisen from the…”
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Multiple sulfur isotope evidence for massive oceanic sulfate depletion in the aftermath of Snowball Earth by Sansjofre, Pierre, Cartigny, Pierre, Trindade, Ricardo I. F., Nogueira, Afonso C. R., Agrinier, Pierre, Ader, Magali

“…The terminal Neoproterozoic Era (850–542 Ma) is characterized by the most pronounced positive sulfur isotope ( 34 S/ 32 S) excursions in Earth’s history, with…”
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High‐frequency palaeoenvironmental changes in the mixed siliciclastic–carbonate sedimentary system from a lower Permian restricted basin (West Gondwana, southern Brazil) by Brito, Ailton S., Nogueira, Afonso C. R., Dos Santos, Renan F., Angélica, Rômulo S., Rodrigues, René

“…ABSTRACT Global climatic and palaeogeographical changes generated a siliciclastic–carbonate system with high organic matter accumulations in a shallow sea…”
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Environmental changes in the western Amazônia: morphological framework, geochemistry, palynology and radiocarbon dating data by Horbe, Adriana M C, Behling, Hermann, Nogueira, Afonso C R, Mapes, Russell

“…The sediments from the Coari lake, a "terra firme" lake sculpted into Plio-Pleistocene deposits, and the Acará lake, a flooding-type lake developed on…”
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Constraining the diagenesis of the Puga cap carbonate from U–Pb in‐situ dating of seafloor crystal fans, southern Amazonian craton, Brazil by Carvalho, Davi F., Nogueira, Afonso C. R., Macambira, Moacir J. B., Lana, Cristiano C., Santos, Renan F., Guélard, Julia, Sansjofre, Pierre

“…Cap carbonates overlying Marinoan (635 Ma) glacial deposits worldwide record extreme paleoceanographic changes that may have triggered the rise of macroscopic…”
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Ocean redox structure across the Late Neoproterozoic Oxygenation Event: A nitrogen isotope perspective by Ader, Magali, Sansjofre, Pierre, Halverson, Galen P., Busigny, Vincent, Trindade, Ricardo I.F., Kunzmann, Marcus, Nogueira, Afonso C.R.

“…The end of the Neoproterozoic Era (1000 to 541 Ma) is widely believed to have seen the transition from a dominantly anoxic to an oxygenated deep ocean. This…”
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The anastomosing pattern and the extensively distributed scroll bars in the middle Amazon River by Rozo, Max G., Nogueira, Afonso C. R., Truckenbrodt, Werner

“…ABSTRACT The middle Amazon River, between the confluences of the Negro and Madeira Rivers in Brazil, shows an anastomosing morphology with relatively stable,…”
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Permian paleogeography of west-central Pangea: Reconstruction using sabkha-type gypsum-bearing deposits of Parnaíba Basin, Northern Brazil by Abrantes, Francisco R., Nogueira, Afonso C.R., Soares, Joelson L.

“…Extreme aridity during Late Permian – Early Triassic period was the main factor for resetting the entire paleoclimate of the planet. Permian evaporite basins…”
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Provenance of Upper Pennsylvanian siliciclastic‐carbonate deposits from the Monte Alegre and Itaituba formations, North Brazil: An integrated study of sandstone petrography, heavy mineral analysis and garnet geochemistry by Mendes, Anderson Conceição, Silva, Eduardo Francisco, Fonseca, Arthur Iven T., Nogueira, Afonso C.R., Silva, Thays Ferreira, Nascimento, Jornada do S.S., Igreja, Haroldo F.E., Somerville, I.

“…The Monte Alegre and Itaituba formations record the transition from a fluvial‐aeolian to a carbonate platform system during the Pennsylvanian on the southern…”
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Carbon and strontium isotope fluctuations and paleoceanographic changes in the late Neoproterozoic Araras carbonate platform, southern Amazon craton, Brazil by Nogueira, Afonso C.R., Riccomini, Claudio, Sial, Alcides N., Moura, Candido A.V., Trindade, Ricardo I.F., Fairchild, Thomas R.

“…The late Neoproterozoic Araras Group is exposed along the southern border of the Amazon craton and at the northern Paraguay belt, central Brazil. It comprises…”
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A red algal bloom in the aftermath of the Marinoan Snowball Earth by Elie, Marcel, Nogueira, Afonso C.R., Nédélec, Anne, Trindade, Ricardo I.F., Kenig, Fabien

“…Organic matter from the cap dolostones overlying the Marinoan‐age glacigenic diamictites of the Araras Group, Amazon craton, has been studied to reconstruct…”
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Rare earth elements as indicators of post-Marinoan (∼635 Ma) paleoceanographic changes from the Amazon Craton by dos Santos, Renan F., Sansjofre, Pierre, Nogueira, Afonso C.R., Crockford, Peter W., Uhlein, Gabriel J., Fogret, Laurane, Pereira, Fábio S., Romero, Guilherme R., Lalonde, Stefan V.

“…[Display omitted] •Early relative sea-level fall attributed to the loss of ice gravity.•Syndepositional dolomite is restricted to the post-Marinoan coastal…”
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The unconventional petroleum system of a mixed siliciclastic-carbonate sequence: Irati Formation, Paraná Basin, Brazil by Brito, Ailton S., Nogueira, Afonso C. R., de Souza, Alexandre A., Rodrigues, René, de Lima, Sidney G.

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Evidence for the Central Atlantic magmatic province (CAMP) in Precambrian and Phanerozoic sedimentary basins of the southern Amazonian Craton, Brazil by Rezende, Gabriel L., Martins, Cristiano Mendel, Nogueira, Afonso C.R., Domingos, Fabio Garcia, Ribeiro-Filho, Nelson

“…The Triassic-Jurassic emplacement of large volumes of basaltic rocks termed the Central Atlantic magmatic province (CAMP), preceded the Pangea break-up and the…”
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New stratigraphic proposal of a Paleoproterozoic siliciclastic succession: Implications for the evolution of the Carajás Basin, Amazonian craton, Brazil by Araújo Filho, Roberto Costa, Nogueira, Afonso C.R., Araújo, Raphael Neto

“…In this study, we propose a new stratigraphic framework for a well-preserved Paleoproterozoic succession of the Carajás Basin (Amazonian craton) in northern…”
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Diagenesis of the Marinoan cap dolostone, Southern Amazon Craton: An unconventional petroleum system in the evolution of the Araras-Alto Paraguai Basin by Santos, Renan F.dos, Nogueira, Afonso C.R., da Costa, Juliane B., Sepeda, Leandro F., Okubo, Juliana, Barros, Isabele S., Sodré, Argel A.N., Oliveira, Pedro G.A., Barrera, Ivan A.R., Sansjofre, Pierre

“…The post-snowball Earth world favors the development of hydrocarbon source rock intimately linked to periods of post-glacial marine transgression generating…”
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Characterization and genesis of waterfalls of the Presidente Figueiredo region, Northeast State of Amazonas, Brazil by NOGUEIRA, AFONSO C. R., SARGES, ROSEANE R.

“…The waterfalls of the Presidente Figueiredo municipality represent a fascinating natural scenery of northeast state of Amazonas, northern Brazil. The falls,…”
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Palaeontological framework from Pirabas Formation (North Brazil) used as potential model for equatorial carbonate platform by Aguilera, Orangel, Oliveira de Araújo, Olga M., Hendy, Austin, Nogueira, Anna A.E., Nogueira, Afonso C.R., Maurity, Clovis Wagner, Kutter, Vinicius Tavares, Martins, Maria Virgínia Alves, Coletti, Giovanni, Dias, Bruna Borba, da Silva-Caminha, Silane A.F., Jaramillo, Carlos, Bencomo, Karen, Lopes, Ricardo Tadeu

“…The Pirabas Formation (early to middle Miocene) from the equatorial margin of North Brazil is characterized by a shallow-marine carbonate platform with high…”
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Incision and aggradation phases of the Amazon River in central-eastern Amazonia during the late Neogene and Quaternary by Bezerra, Isaac Salém A.A., Nogueira, Afonso C.R., Motta, Marcelo B., Sawakuchi, André O., Mineli, Thays D., Silva, Arnaldo de Q., Silva, Antônio G., Domingos, Fábio H.G., Mata, Giovanni A.T., Lima, Felipe J., Riker, Sílvio R.L.

“…The development of the Amazon River as a transcontinental drainage has been narrated in terms of the sedimentary record in western Amazonia and in marine…”
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High-frequency/low amplitude eustatic parasequences in Neoproterozoic Alto Paraguai basin (Mato Grosso, Brazil) by NOGUEIRA, AFONSO C. R., RICCOMINI, CLAUDIO

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