Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas Basin
Abstract The oldest petroleum discoveries on the Brazilian offshore margin are in Paleogene reservoirs of the Guaricema and Dourado fields in the structural Mosqueiro Low, the Southern Sergipe-Alagoas Basin. Study of well logs and biostratigraphic data of the Eocene Series allowed its subdivision in...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Geologia
2021-09-01
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| Series: | Brazilian Journal of Geology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892021000300303&tlng=en |
| _version_ | 1798020250388660224 |
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| author | Cristiano Camelo Rancan Rosemarie Rohn Wagner Souza-Lima Claudio Borba |
| author_facet | Cristiano Camelo Rancan Rosemarie Rohn Wagner Souza-Lima Claudio Borba |
| author_sort | Cristiano Camelo Rancan |
| collection | DOAJ |
| description | Abstract The oldest petroleum discoveries on the Brazilian offshore margin are in Paleogene reservoirs of the Guaricema and Dourado fields in the structural Mosqueiro Low, the Southern Sergipe-Alagoas Basin. Study of well logs and biostratigraphic data of the Eocene Series allowed its subdivision into three stratigraphic intervals representing the Ypresian, Lutetian-Bartonian, and Priabonian stages. The Ypresian depocenter is in the Dourado Trough, whereas the Lutetian-Bartonian and Priabonian depocenters are in the Vaza-Barris Trough, controlled by halokinesis in the first one and basement deformation in the others. The Ypresian interval mainly comprises retrogradational deposits related to the Early Eocene Climate Optimum. The Middle-Eocene Basal Unconformity is the main erosive feature in the Series. The Lutetian-Bartonian and Priabonian depositional systems are progradational. Their deposition is related to basement uplift due to both intense deep-water magmatism and to the Incaica Phase of the Andean Orogeny. |
| first_indexed | 2024-04-11T16:54:13Z |
| format | Article |
| id | doaj.art-6f09c74b87c3444a839d58b2a1f41663 |
| institution | Directory Open Access Journal |
| issn | 2317-4692 |
| language | English |
| last_indexed | 2024-04-11T16:54:13Z |
| publishDate | 2021-09-01 |
| publisher | Sociedade Brasileira de Geologia |
| record_format | Article |
| series | Brazilian Journal of Geology |
| spelling | doaj.art-6f09c74b87c3444a839d58b2a1f416632022-12-22T04:13:20ZengSociedade Brasileira de GeologiaBrazilian Journal of Geology2317-46922021-09-0151310.1590/2317-4889202120210028Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas BasinCristiano Camelo Rancanhttps://orcid.org/0000-0002-4294-3352Rosemarie Rohnhttps://orcid.org/0000-0001-6110-4194Wagner Souza-Limahttps://orcid.org/0000-0002-9075-1080Claudio Borbahttps://orcid.org/0000-0002-3088-9221Abstract The oldest petroleum discoveries on the Brazilian offshore margin are in Paleogene reservoirs of the Guaricema and Dourado fields in the structural Mosqueiro Low, the Southern Sergipe-Alagoas Basin. Study of well logs and biostratigraphic data of the Eocene Series allowed its subdivision into three stratigraphic intervals representing the Ypresian, Lutetian-Bartonian, and Priabonian stages. The Ypresian depocenter is in the Dourado Trough, whereas the Lutetian-Bartonian and Priabonian depocenters are in the Vaza-Barris Trough, controlled by halokinesis in the first one and basement deformation in the others. The Ypresian interval mainly comprises retrogradational deposits related to the Early Eocene Climate Optimum. The Middle-Eocene Basal Unconformity is the main erosive feature in the Series. The Lutetian-Bartonian and Priabonian depositional systems are progradational. Their deposition is related to basement uplift due to both intense deep-water magmatism and to the Incaica Phase of the Andean Orogeny.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892021000300303&tlng=enBrazilian offshoregravity flowshalokinesisbasement deformationpaleogeography |
| spellingShingle | Cristiano Camelo Rancan Rosemarie Rohn Wagner Souza-Lima Claudio Borba Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas Basin Brazilian Journal of Geology Brazilian offshore gravity flows halokinesis basement deformation paleogeography |
| title | Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas Basin |
| title_full | Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas Basin |
| title_fullStr | Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas Basin |
| title_full_unstemmed | Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas Basin |
| title_short | Stratigraphy and paleogeography of the Eocene in the Mosqueiro Low, Sergipe-Alagoas Basin |
| title_sort | stratigraphy and paleogeography of the eocene in the mosqueiro low sergipe alagoas basin |
| topic | Brazilian offshore gravity flows halokinesis basement deformation paleogeography |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892021000300303&tlng=en |
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