Rift Stage
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. 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
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2. Arquitetura deposicional e evolução tectono-estratigráfica das sequências pré-rifte e rifte, na porção central do Vale do Cariri, Bacia do Araripe, NE do Brasil
Uma complexa história deposicional, relacionada ao rifteamento do Atlântico, caracteriza a evolução geológica durante o final do Jurássico e o início do Neocomiano na Bacia do Araripe, NE do Brasil. Com base na integração de dados de afloramentos, seções sísmicas e sensores remotos, apresenta-se neste trabalho, um novo modelo de evolução tecton
Publicado em: 2009
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3. Análise tectono-estratigráfica da Faixa de dobramento Paraguai meridional na Serra da Bodoquena e depressão do Rio Miranda, MS / Tectonostratigraphic analysis of the southern Paraguay fold belt in Serra da Bodoquena and Rio Miranda depression, MS
This work aims to characterize the geological and structural context of the Southern Paraguay Folded Belt, and to understand the stratigraphic relationships between the Puga Formation, Corumbá and Cuiabá groups. Regional geological reconnaissance work and detailed geological-structural field sections were carried out, with petrographic and structural analy
Publicado em: 2009
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4. Estratigrafia de sequências do intervalo aptiano ao albino na Bacia do Araripe, NE do Brasil / Estratigrafia de sequências do intervalo aptiano ao albino na Bacia do Araripe, NE do Brasil
This study has as a main objective to make a detailed stratigraphic analysis of the Aptian-Albian interval in the east part of Araripe Basin, NE of Brazil which correspond, litostratigraphically, to Rio Da Batateira, Crato, Ipubi and Romualdo formations. The stratigraphic analysis was based on three different stages, the 1D, 2D and 3D analysis; these ones we
Publicado em: 2009
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5. Caracterização tectono-estratigráfica da sequência transicional na sub-bacia de Sergipe
This thesis deals with the tectonic-stratigraphic evolution of the Transitional Sequence in the Sergipe Sub-basin (the southern segment of the Sergipe-Alagoas Basin, Northeast Brazil), deposited in the time interval of the upper Alagoas/Aptian stage. Sequence boundaries and higher order internal sequences were identified, as well as the structures that affec
Publicado em: 2008
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6. Taxonomia e Paleoecologia de Ostracodes de Aptiano, Bacia do Cedro, Estado de Pernambuco, Ne-Brasil: ImplicaÃÃes Paleoambientais BioestratigrÃficas
In the Cedro basin, during the Alagoas Stage, the deposition of sediments occurs during the Pos-rift stage, correspondent to the Crato Formation. The sampling carries through in these sediments allowed to the identification of five genus and 18 lÃmnicos species of ostracodas: Harbinia angulata (KrÃmmelbein &Weber, 1971), Harbinia micropapillosa (Bate, 1972
Publicado em: 2007
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7. Reavaliação do contexto tectonico dos basaltos do greenstone belt do Rio Itapicuru (Bahia), com base na geoquimica de elementos-traço / Tectonic setting of basalts from the Rio Itapicuru greenstone belt revisited (Bahia, Bazil) by trace-element geochemistry
The Paleoproterozoic Rio Itapicuru Greenstone Belt, situated in the Serrinha Block - northeast São Francisco Craton, has a sequence of basaltic rocks whose tectonic setting is under discussion, i.e whether a back arc setting or intracontinental rift. The basalt geochemistry was revisited on the basis of incompatible trace elements data, such as high field s
Publicado em: 2007
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8. A interação entre os eventos tectônicos e a evolução geomorfológica da Serra da Bocaina, Sudeste do Brasil / The interaction between tectonic events and the landscape evolution of Bocaina Ridge, Southeastern Brazil
The Bocaina Ridge landscape is strongly controlled by both ductile and brittle structures related to the Ribeira Belt (Brasiliano Orogeny ca. 790-480Ma) and also to the mesozoic-cenozoic reactivations. The rocks were subdivided in four tectonic terrains accreted in the brasiliano collisional stages. The most prominent structures related to these collisions a
Publicado em: 2006
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9. Geologia, Geocronologia, Geoquímica e Petrogênese das Rochas Ígneas Cretácicas da Província Magmática do Cabo e suas Relações com as Unidades Sedimentares da Bacia de Pernambuco (NE do Brasil)
The area studied forms a thin NNE-directed belt situated south of Recife town (Pernambuco state), northeastern Brazil. Geologically, it comprises the Pernambuco Basin (PB), which is limited by the Pernambuco Lineament to the north, the Maragogi high to the south and the Pernambuco Alagoas massif to the west, all of them with Precambrian age. This thesis repo
Publicado em: 2003
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10. Litoestratigrafia e deformação cenzóica na região de Icapuí, Ceará, e implicações para a estruturação de campos de petróleo na borda ocidental da bacia Potiguar(NE do Brasil)
This thesis deals with the sedimentological/stratigraphic and structural evolution of the sedimentary rocks that occur in the NW continental border of the Potiguar Basin. These rocks are well exposed along coastal cliffs between the localities of Lagoa do Mato and Icapuí, Ceará State (NE Brazil). The sedimentological/stratigraphic study involved, at the ou
Publicado em: 2003
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11. Nuts, nut cracking, and pitted stones at Gesher Benot Ya‘aqov, Israel
The Acheulian site of Gesher Benot Ya‘aqov (Israel) has revealed a unique association of edible nuts with pitted hammers and anvils. Located in the Dead Sea rift, on the boundary between the Arabian and African plates, the site dates to the Early-Middle Pleistocene, oxygen isotope stage 19. In a series of strata, seven species of nuts, most of which can be
The National Academy of Sciences.