Results 171 to 180 of about 665,702 (201)

Aptian Marine Ingression in the Araripe Basin: Implications for Paleogeographic Reconstruction and Evaporite Accumulation

Marine and Petroleum Geology, 2019
Abstract Integrated sedimentologic and palynological analysis of four outcrops in the Aptian succession of the Araripe Basin provides information on the earliest marine connection of this basin. Palynological samples revealed well-preserved palynomorphs with diverse assemblages composed of pteridophyte spores and gymnospermic pollen grains ...
Paulo A Souza, Karin Goldberg, Eduardo Premaor Premaor   +2 more
exaly   +2 more sources

Reproductive organs of a Grylloidea fossil from the Cretaceous Araripe Basin, Brazil

Journal of the Geological Society
The Crato Formation, an Early Cretaceous lacustrine Lagerstätte in northeastern Brazil, is noteworthy for soft-tissue fossilization. This unit records an abundant and diverse palaeoentomofauna, which preserves external and internal elements, including organs and delicate tissues. Here, we report the oldest and only known fossilized
Jaime Joaquim Dias, Ismar de Souza Carvalho, Pedro G. B. Souza-Dias, Edison Zefa, Cecília de Lima Barros, Gustavo Prado, Gabriel Ladeira Osés   +6 more
openaire   +1 more source

Aptian ostracods from the Santana Group, Araripe Basin, Brazil

Revue de Micropaléontologie, 2022
Juliana Guzmán, Enelise Katia Piovesan, Débora Soares de Almeida-Lima, Ariany de Jesus e Sousa, Virgínio Henrique de Miranda Lopes Neumann   +4 more
openaire   +1 more source

Petrophysics of carbonatic and evaporitic rocks from Araripe Basin

13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26–29 August 2013, 2013
K.G.R. Gurjão, J.A. Soares, A.N. Figueiredo, J.A. Barbosa, I.F. Gomes   +4 more
openaire   +1 more source

Basin inversion, scarp retreat and soil distribution in the Araripe basin (northeast Brazil): implications for denudation history

2013
At the border between the Ceará, Piauí, and Pernambuco states (northeast Brazil), the high sandstone table called Chapada do Araripe overlooks lower and drier plateaus and depressions shaped into underlying post-rift and rift layers, in the east, or in the basement, to the west and south.
Peulvast, Jean-Pierre, Bétard, François   +1 more
openaire   +1 more source

Pedogenesis on Jurassic formations in the Araripe Basin, northeastern Brazil: Weathering and parent material

CATENA, 2023
Carlos Roberto Pinheiro Junior, Tiago Rodrigues Tavares, Marcos Gervasio Pereira, Sheila Aparecida Correia Furquim, Fabrício da Silva Terra, Lúcia Helena Cunha dos Anjos, José Alexandre Melo Demattê, Antônio Carlos de Azevedo, Fábio Soares de Oliveira   +8 more
openaire   +1 more source

Neotectonics of Araripe Basin Near Patos Shear Zone and Araripe Valley: Insights from Geomorphometry

Journal of South American Earth Sciences
Viktor Ferreira de Oliveira, Wellington Ferreira da Silva Filho   +1 more
openaire   +1 more source

Paleomagnetic preliminary results from the Aptian-Albian Araripe Basin, northeastern Brazil

Tectonic opening of the Equatorial Atlantic Gateway (EAG) and its impact on Ocean–Atmosphere dynamics has global implications. Rifting between South America and Africa drove a transition from continental–lacustrine to evaporitic, and ultimately marine, environments, although the timing and duration of these changes remain debated. Over the same period,
Jairo Savian, João Ramos, Caroline Pontel, Josefa Lacerda, Juliano Kuchle, Roberto Silva Jr, Raquel de Mello, Camila Lopes, Sofia Nunes, Gabrieli Almeida, Milene Figueiredo   +10 more
openaire   +1 more source

Provenance Analysis of the Araripe Intracontinental Basin, Northeast Brazil – Routes for Proto-Atlantic Marine Incursions in Northwest Gondwana

Sedimentary Geology, 2022
Yukiyasu Tsutsumi, Yukio Isozaki
exaly  

Tracing Marine Conditions in the Ipubi Black Shales, Araripe Basin, NE Brazil: An Approach by Chemical Elements Contents

Journal of South American Earth Sciences, 2022
Thales Lúcio
exaly