Albian
Mostrando 1-12 de 26 artigos, teses e dissertações.
-
1. The Neostratotype of Itapecuru Formation (Lower-Middle Albian) and Its Impact for Mesozoic Stratigraphy of Parnaíba Basin
Abstract Abstract: This study defines the neostratotype of the Lower-Middle Albian Itapecuru Formation in the Parnaíba Basin, Northeast Brazil. In this sedimentary succession along the right bank of the Itapecuru River near the Itapecuru-Mirim City, Maranhão State, three lithofacies associations are recognized. The first is silty claystone with some very f
An. Acad. Bras. Ciênc.. Publicado em: 06/05/2019
-
2. Microfacies and diagenetic evolution of the limestones of the upper part of the Crato Formation, Araripe Basin, northeastern Brazil
Abstract This paper presents the results of a petrographic and diagenetic study of the laminated limestones of the upper part of the Aptian to Albian Crato Formation, northeast of Brazil. The applied techniques were optical microscopy, cathodoluminescence and scanning electron microscopy (SEM) coupled to a wavelength-dispersive spectrometer (WDS). Petrograph
Braz. J. Geol.. Publicado em: 08/04/2019
-
3. Stratigraphic Relations of the Ipubi Formation: Siliciclastic-Evaporitic Succession of the Araripe Basin
ABSTRACT The Ipubi Formation represents the Aptian-Albian siliciclastic-evaporitic succession of Araripe Basin, NE Brazil. This succession comprises siliciclastic rocks (bituminous shales and claystones) and evaporites (gypsum and secondary anhydrite) and represents part of the lacustrine-shallow marine post-rift phase I. This study used sequence stratigraph
An. Acad. Bras. Ciênc.. Publicado em: 25/06/2018
-
4. Simultaneous prestack seismic inversion in a carbonate reservoir
Abstract We applied a method of Simultaneous Prestack Seismic Inversion (SPSI) in a hydrocarbon field located in the Campos Basin, Brazil. The goal was to study the application of this method to Albian carbonate rocks of the Quissamã Formation. Based on what is found in nearby fields, this Formation potentially contains hydrocarbon accumulations that can be
REM, Int. Eng. J.. Publicado em: 2018-03
-
5. New plant fossils from the Lower Cretaceous of the Parnaíba Basin, Northeastern Brazil: Southern Laurasia links
ABSTRACT: This study reports on the presence of a diverse set of gymnosperm and angiosperm macrofossils from the Codó Formation, Parnaíba Basin, whose assemblage was previously known only by the occurrence of pollen grains, spores, wood fragments, leaves and roots associated with Nympheaceae. In the Brejo municipality, northeastern Maranhão State, marl le
Braz. J. Geol.. Publicado em: 2018-01
-
6. Distributional patterns of Aptian-Albian paleoichthyofauna of Brazil and Africa based on Track Analysis
ABSTRACT The Aptian-Albian paleoichthyofauna in Brazil and Africa is quite diverse, yet their geographic patterns still require accounts. This work consists of a panbiogeographical analysis of paleoichthyofauna from Aptian-Albian through track analysis. Geographic coordinates were obtained and converted into paleocoordinates. Individual Tracks (ITs) and Gene
An. Acad. Bras. Ciênc.. Publicado em: 02/03/2017
-
7. Réplica aos comentários de Assine et al. (Discussão do artigo "Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective" de M. Arai)
Braz. J. Geol.. Publicado em: 2016-03
-
8. Discussão do artigo "Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective" de M. Arai
Braz. J. Geol.. Publicado em: 2016-03
-
9. The Cogollo Group and the oceanic anoxic events 1a and 1b, Maracaibo basin, Venezuela
ABSTRACTCarbonates of Cogollo Group (Apón, Lisure and Maraca formations) constitute the broader calcareous platform system originated during Aptian and Albian of Cretaceous in north-western South America, Maracaibo Basin, Venezuela. On the shallow shelf, a variety of calcareous sedimentary facies were deposited during marine transgressive and regressive cyc
Braz. J. Geol.. Publicado em: 2015-08
-
10. Shrimps from the Santana Group (Cretaceous: Albian): new species (Crustacea: Decapoda: Dendrobranchiata) and new record (Crustacea: Decapoda: Caridea)
O camarão fóssil Araripenaeus timidus n. gen. n. sp. é o primeiro Penaeoidea fóssil descrito para o Brasil. No presente trabalho ele é descrito, ilustrado e comparado com Paleomattea deliciosa, um Sergestoidea fóssil (Dendrobranchiata), previamente descrito para a mesma região. O material do Cretáceo inferior (Albiano) foi coletado na cidade Jardim,
An. Acad. Bras. Ciênc.. Publicado em: 29/04/2014
-
11. Arquitetura estratigráfica e arcabouço estrutural dos depósitos fluviais albianos da base da Formação São Mateus no Norte da Bacia do Espírito Santo
The main aim of this dissertation is make at the high-resolution stratigraphic subdivision of the basal section from the São Mateus Formation, Albian the Espírito Santo Basin. The interval studied is consists predominantly of alluvial deposits. Against the difficulties presented for the stratigraphic correlation of these deposits, as discussed by Wright &M
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
-
12. Análise da deformação pós-Rifte na Bacia do Araripe, Nordeste do Brasil
The Araripe Basin is located over Precambrian terrains of the Borborema Province, being part of Northeast Brazil inner basins. Its origin is related to the fragmentation of the Gondwana supercontinent and consequently opening of South Atlantic during early Cretaceous. The basin has a sedimentary infill encompassing four distinct evolution stages, comprising
Publicado em: 2010