Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil

Detalhes bibliográficos
Autor(a) principal: Weschenfelder, Jair
Data de Publicação: 2006
Outros Autores: Correa, Iran Carlos Stalliviere, Aliotta, Salvador, Pereira, Carla, Vasconcelos, Vinicius
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FURG (RI FURG)
Texto Completo: http://repositorio.furg.br/handle/1/4232
Resumo: A high resolution seismic survey was conducted in the Patos Lagoon, southern Brazil, aboard of the research vessel LARUS of the Fundação Universidade Federal do Rio Grande (FURG). Around 400 km of 3.5 kHz seismic profiles were collected, which provided acoustic signals of good penetration depth and resolution. Seismic anomalies, including turbidity and pocket gas, revealed that gas-charged sediments are common in several areas of the lagoon. The gas accumulations in the Patos Lagoon are controlled by the spatial distribution of the sedimentary facies. Either in ‘curtains’ or in ‘acoustic turbid zones’, the main gas accumulations occur in areas with paleotopographic lows related to fluvial channels and valleys developed in the Rio Grande do Sul coastal plain during regressive/transgressive events of the Quaternary.
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spelling Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil3.5 kHz seismicRio Grande do SulShallow GasCoastal PlainA high resolution seismic survey was conducted in the Patos Lagoon, southern Brazil, aboard of the research vessel LARUS of the Fundação Universidade Federal do Rio Grande (FURG). Around 400 km of 3.5 kHz seismic profiles were collected, which provided acoustic signals of good penetration depth and resolution. Seismic anomalies, including turbidity and pocket gas, revealed that gas-charged sediments are common in several areas of the lagoon. The gas accumulations in the Patos Lagoon are controlled by the spatial distribution of the sedimentary facies. Either in ‘curtains’ or in ‘acoustic turbid zones’, the main gas accumulations occur in areas with paleotopographic lows related to fluvial channels and valleys developed in the Rio Grande do Sul coastal plain during regressive/transgressive events of the Quaternary.2013-11-23T17:29:56Z2013-11-23T17:29:56Z2006info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfWESCHENFELDER, Jair. Et al. Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil. Anais da Academia Brasileira de Ciências, v. 78, n. 3, p. 607-614, 2006. Disponível em: <http://www.scielo.br/pdf/aabc/v78n3/17v78n3.pdf>. Acesso em: 23 nov. 2013.0001-3765http://repositorio.furg.br/handle/1/4232engWeschenfelder, JairCorrea, Iran Carlos StalliviereAliotta, SalvadorPereira, CarlaVasconcelos, Viniciusinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2020-01-06T18:09:29Zoai:repositorio.furg.br:1/4232Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2020-01-06T18:09:29Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false
dc.title.none.fl_str_mv Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
title Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
spellingShingle Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
Weschenfelder, Jair
3.5 kHz seismic
Rio Grande do Sul
Shallow Gas
Coastal Plain
title_short Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
title_full Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
title_fullStr Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
title_full_unstemmed Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
title_sort Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil
author Weschenfelder, Jair
author_facet Weschenfelder, Jair
Correa, Iran Carlos Stalliviere
Aliotta, Salvador
Pereira, Carla
Vasconcelos, Vinicius
author_role author
author2 Correa, Iran Carlos Stalliviere
Aliotta, Salvador
Pereira, Carla
Vasconcelos, Vinicius
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Weschenfelder, Jair
Correa, Iran Carlos Stalliviere
Aliotta, Salvador
Pereira, Carla
Vasconcelos, Vinicius
dc.subject.por.fl_str_mv 3.5 kHz seismic
Rio Grande do Sul
Shallow Gas
Coastal Plain
topic 3.5 kHz seismic
Rio Grande do Sul
Shallow Gas
Coastal Plain
description A high resolution seismic survey was conducted in the Patos Lagoon, southern Brazil, aboard of the research vessel LARUS of the Fundação Universidade Federal do Rio Grande (FURG). Around 400 km of 3.5 kHz seismic profiles were collected, which provided acoustic signals of good penetration depth and resolution. Seismic anomalies, including turbidity and pocket gas, revealed that gas-charged sediments are common in several areas of the lagoon. The gas accumulations in the Patos Lagoon are controlled by the spatial distribution of the sedimentary facies. Either in ‘curtains’ or in ‘acoustic turbid zones’, the main gas accumulations occur in areas with paleotopographic lows related to fluvial channels and valleys developed in the Rio Grande do Sul coastal plain during regressive/transgressive events of the Quaternary.
publishDate 2006
dc.date.none.fl_str_mv 2006
2013-11-23T17:29:56Z
2013-11-23T17:29:56Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv WESCHENFELDER, Jair. Et al. Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil. Anais da Academia Brasileira de Ciências, v. 78, n. 3, p. 607-614, 2006. Disponível em: <http://www.scielo.br/pdf/aabc/v78n3/17v78n3.pdf>. Acesso em: 23 nov. 2013.
0001-3765
http://repositorio.furg.br/handle/1/4232
identifier_str_mv WESCHENFELDER, Jair. Et al. Shallow gas accumulation in sediments of the Patos Lagoon, southern Brazil. Anais da Academia Brasileira de Ciências, v. 78, n. 3, p. 607-614, 2006. Disponível em: <http://www.scielo.br/pdf/aabc/v78n3/17v78n3.pdf>. Acesso em: 23 nov. 2013.
0001-3765
url http://repositorio.furg.br/handle/1/4232
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da FURG (RI FURG)
instname:Universidade Federal do Rio Grande (FURG)
instacron:FURG
instname_str Universidade Federal do Rio Grande (FURG)
instacron_str FURG
institution FURG
reponame_str Repositório Institucional da FURG (RI FURG)
collection Repositório Institucional da FURG (RI FURG)
repository.name.fl_str_mv Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)
repository.mail.fl_str_mv
_version_ 1813187258659897344

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