Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe
The Sergipe-Alagoas basin is related to the break-up of the Gondwana Superconinent and the onset of the opening of the South Atlantic Ocean. The basin records all evolutive sequences: sineclises, pre-rift, rift, pos-rift and passive margin. The Morro do Chaves Formation, object of this work comprise...
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DGEOL - Departamento de Geologia – São Cristóvão - Presencial
2018
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ftunivfsergipe:oai:ufs.br:riufs/9734 2023-08-20T04:09:50+02:00 Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe Andrade, Larissa Lins Figueiredo, Felipe Torres 2018-03-08 application/pdf http://ri.ufs.br/jspui/handle/riufs/9734 por por DGEOL - Departamento de Geologia – São Cristóvão - Presencial Universidade Federal de Sergipe Andrade, Larissa Lins. Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe. São Cristóvão, SE, 2018. Monografia (bacharelado em Geologia) – Curso de Geologia, Departamento de Geologia, Centro de Ciências Exatas e Tecnologia, Universidade Federal de Sergipe, São Cristóvão, 2018 http://ri.ufs.br/jspui/handle/riufs/9734 Geologia Ensino de geologia Sub-Bacia de Sergipe Análise de proveniência Formação Morro do Chaves Cratáceo Sergipe Alagoas Basin Facies analysis Provenance analysis Morro do Chaves Formation CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIA::HIDROGEOLOGIA Monografia 2018 ftunivfsergipe 2023-07-29T20:25:46Z The Sergipe-Alagoas basin is related to the break-up of the Gondwana Superconinent and the onset of the opening of the South Atlantic Ocean. The basin records all evolutive sequences: sineclises, pre-rift, rift, pos-rift and passive margin. The Morro do Chaves Formation, object of this work comprises a small part of the rift sequence, composed of carbonate rocks, shales, sandstones and conglomerates, interpreted as the product of a carbonate shelf fed by alluvial fan deposits. Although previous interpretations regarding the paleoenvironment is not a matter of concern, one question is still under debate, and concerns the setting of structural highs troughout the rift phase, which could have controlled the distribution of source rocks over the adjacent rift shoulders. The inference of source rocks along the adjacent footwall could help to understand the extension in area of the watershed that fed the basin during its early stage of formation in the lower cretaceous. In order to discuss and contribute to this issue, facies and provenance analyses were applied on one outcrop of the Morro do Chaves Formation, located at the city of Propriá. The results from facies analysis allowed to interpret three facies associations (AF1, AF2 and AF3). AF1 is related to a continental settling, dominated by alluvial fans. AF2 suggests the deposition under a lake environment with secondary contribution of alluvial fans, influenced by wave action. AF3 was interpreted as a deeper lake phase non influenced by current waves or gravitational flows. Provenance analysis showed a major contribution of quartzite and vein quartz pebbles and the prevalence of sub-angulous and angulous lithoclasts, which suggest a local source area, probably at the Macururé Domain. The less contribution of granites lithoclasts from the bottom to top of the stratigraphic section studied indicate a progressive denudation of the basement rocks as the the rift shoulder was uplifted. Although this model is still preliminary, it implies that capture drainage basins ... Book South Atlantic Ocean Repositório Institucional da Universidade Federal de Sergipe (RIUFS) Morro ENVELOPE(-57.500,-57.500,-63.833,-63.833) |
institution |
Open Polar |
collection |
Repositório Institucional da Universidade Federal de Sergipe (RIUFS) |
op_collection_id |
ftunivfsergipe |
language |
Portuguese |
topic |
Geologia Ensino de geologia Sub-Bacia de Sergipe Análise de proveniência Formação Morro do Chaves Cratáceo Sergipe Alagoas Basin Facies analysis Provenance analysis Morro do Chaves Formation CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIA::HIDROGEOLOGIA |
spellingShingle |
Geologia Ensino de geologia Sub-Bacia de Sergipe Análise de proveniência Formação Morro do Chaves Cratáceo Sergipe Alagoas Basin Facies analysis Provenance analysis Morro do Chaves Formation CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIA::HIDROGEOLOGIA Andrade, Larissa Lins Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe |
topic_facet |
Geologia Ensino de geologia Sub-Bacia de Sergipe Análise de proveniência Formação Morro do Chaves Cratáceo Sergipe Alagoas Basin Facies analysis Provenance analysis Morro do Chaves Formation CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIA::HIDROGEOLOGIA |
description |
The Sergipe-Alagoas basin is related to the break-up of the Gondwana Superconinent and the onset of the opening of the South Atlantic Ocean. The basin records all evolutive sequences: sineclises, pre-rift, rift, pos-rift and passive margin. The Morro do Chaves Formation, object of this work comprises a small part of the rift sequence, composed of carbonate rocks, shales, sandstones and conglomerates, interpreted as the product of a carbonate shelf fed by alluvial fan deposits. Although previous interpretations regarding the paleoenvironment is not a matter of concern, one question is still under debate, and concerns the setting of structural highs troughout the rift phase, which could have controlled the distribution of source rocks over the adjacent rift shoulders. The inference of source rocks along the adjacent footwall could help to understand the extension in area of the watershed that fed the basin during its early stage of formation in the lower cretaceous. In order to discuss and contribute to this issue, facies and provenance analyses were applied on one outcrop of the Morro do Chaves Formation, located at the city of Propriá. The results from facies analysis allowed to interpret three facies associations (AF1, AF2 and AF3). AF1 is related to a continental settling, dominated by alluvial fans. AF2 suggests the deposition under a lake environment with secondary contribution of alluvial fans, influenced by wave action. AF3 was interpreted as a deeper lake phase non influenced by current waves or gravitational flows. Provenance analysis showed a major contribution of quartzite and vein quartz pebbles and the prevalence of sub-angulous and angulous lithoclasts, which suggest a local source area, probably at the Macururé Domain. The less contribution of granites lithoclasts from the bottom to top of the stratigraphic section studied indicate a progressive denudation of the basement rocks as the the rift shoulder was uplifted. Although this model is still preliminary, it implies that capture drainage basins ... |
author2 |
Figueiredo, Felipe Torres |
format |
Book |
author |
Andrade, Larissa Lins |
author_facet |
Andrade, Larissa Lins |
author_sort |
Andrade, Larissa Lins |
title |
Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe |
title_short |
Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe |
title_full |
Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe |
title_fullStr |
Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe |
title_full_unstemmed |
Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe |
title_sort |
caracterização de fácies e análise de proveniência de um afloramento da formação morro do chaves na sub-bacia de sergipe |
publisher |
DGEOL - Departamento de Geologia – São Cristóvão - Presencial |
publishDate |
2018 |
url |
http://ri.ufs.br/jspui/handle/riufs/9734 |
long_lat |
ENVELOPE(-57.500,-57.500,-63.833,-63.833) |
geographic |
Morro |
geographic_facet |
Morro |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
Andrade, Larissa Lins. Caracterização de fácies e análise de proveniência de um afloramento da formação Morro do Chaves na sub-bacia de Sergipe. São Cristóvão, SE, 2018. Monografia (bacharelado em Geologia) – Curso de Geologia, Departamento de Geologia, Centro de Ciências Exatas e Tecnologia, Universidade Federal de Sergipe, São Cristóvão, 2018 http://ri.ufs.br/jspui/handle/riufs/9734 |
_version_ |
1774723542423699456 |