Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/3156 |
Resumo: | Detailed geology, bathymetry and sonographic data have been obtained over 80 km of the northern shoreline section of Rio Grande do Sul, the southernmost state of Brazil. This data was collected up until 50 m water depth, to determine the outer limits of the shoreface-inner shelf sediment exchange and evolution. Integrated data of 278 bottom samples, taken from the inner shelf, including 27 cores and 11 transverse shoreface bathymetric profiles, depth of up to 15 m, were analyzed. Geoprocessing data patterns show a regular bottom with gentle slopes, identifying three distinct morpho-sedimentaty sections: North, Central and South. The North and South sections reveal a heterogeneous pattern in the morphology and sedimentary distribution, contrasting with the South section, which has a more gradual sedimentary distribution fining out seaward. Correlations among textural statistic parameters, maps and sonographic records revealed variations, classifying 8 main facies. Bathymetric extended profiles, from the shoreface to the depth of 40 m, characterized the morphological shoreface-inner shelf dynamic boundaries (toe) at 18mon the Northern section, from 16mto 25mat the Central and South sections The shoreface shows marine dynamics over the geological control. Core facies and fauna show a morpho-structural and geological inheritance, responding to a coastline translation displacement. This process was responsible for the local variations of palimpsest and relict sediments, affecting ancient topography control of the coastline translation and past still steady sea levels, of the barrier variability, during the last HoloceneTransgression. |
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Gruber, Nelson Luiz SambaquiCorrea, Iran Carlos StalliviereNicolodi, João LuizBarboza, Eduardo Guimarães2013-03-14T15:06:36Z2013-03-14T15:06:36Z2006GRUBER, Nelson Luiz Sambaqui et al. Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil. Journal of Coastal Research, v. 39, p. 664-668, 2006. Disponível em:<http://siaiacad09.univali.br/ics2004/arquivos/134_gruber.pdf>. Acesso em: 5 jul. 2012.0749-0208http://repositorio.furg.br/handle/1/3156Detailed geology, bathymetry and sonographic data have been obtained over 80 km of the northern shoreline section of Rio Grande do Sul, the southernmost state of Brazil. This data was collected up until 50 m water depth, to determine the outer limits of the shoreface-inner shelf sediment exchange and evolution. Integrated data of 278 bottom samples, taken from the inner shelf, including 27 cores and 11 transverse shoreface bathymetric profiles, depth of up to 15 m, were analyzed. Geoprocessing data patterns show a regular bottom with gentle slopes, identifying three distinct morpho-sedimentaty sections: North, Central and South. The North and South sections reveal a heterogeneous pattern in the morphology and sedimentary distribution, contrasting with the South section, which has a more gradual sedimentary distribution fining out seaward. Correlations among textural statistic parameters, maps and sonographic records revealed variations, classifying 8 main facies. Bathymetric extended profiles, from the shoreface to the depth of 40 m, characterized the morphological shoreface-inner shelf dynamic boundaries (toe) at 18mon the Northern section, from 16mto 25mat the Central and South sections The shoreface shows marine dynamics over the geological control. Core facies and fauna show a morpho-structural and geological inheritance, responding to a coastline translation displacement. This process was responsible for the local variations of palimpsest and relict sediments, affecting ancient topography control of the coastline translation and past still steady sea levels, of the barrier variability, during the last HoloceneTransgression.engContinental shelfSide scan sonarSedimentsMorphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALMorphodynamic Limits of Shoreface and Inner Shelf at the Northern Coast of Rio Grande do Sul, Brazil..pdfMorphodynamic Limits of Shoreface and Inner Shelf at the Northern Coast of Rio Grande do Sul, Brazil..pdfapplication/pdf1189654https://repositorio.furg.br/bitstream/1/3156/1/Morphodynamic%20Limits%20of%20Shoreface%20and%20Inner%20Shelf%20at%20the%20Northern%20Coast%20of%20Rio%20Grande%20do%20Sul%2c%20Brazil..pdf335b26a298b6114ef81f7dd04b0f7a9eMD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81724https://repositorio.furg.br/bitstream/1/3156/2/license.txt5b92b9704b4f13242d70e45ddef35a68MD52open access1/31562014-09-16 14:46:55.246open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2014-09-16T17:46:55Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil |
title |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil |
spellingShingle |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil Gruber, Nelson Luiz Sambaqui Continental shelf Side scan sonar Sediments |
title_short |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil |
title_full |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil |
title_fullStr |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil |
title_full_unstemmed |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil |
title_sort |
Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil |
author |
Gruber, Nelson Luiz Sambaqui |
author_facet |
Gruber, Nelson Luiz Sambaqui Correa, Iran Carlos Stalliviere Nicolodi, João Luiz Barboza, Eduardo Guimarães |
author_role |
author |
author2 |
Correa, Iran Carlos Stalliviere Nicolodi, João Luiz Barboza, Eduardo Guimarães |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gruber, Nelson Luiz Sambaqui Correa, Iran Carlos Stalliviere Nicolodi, João Luiz Barboza, Eduardo Guimarães |
dc.subject.por.fl_str_mv |
Continental shelf Side scan sonar Sediments |
topic |
Continental shelf Side scan sonar Sediments |
description |
Detailed geology, bathymetry and sonographic data have been obtained over 80 km of the northern shoreline section of Rio Grande do Sul, the southernmost state of Brazil. This data was collected up until 50 m water depth, to determine the outer limits of the shoreface-inner shelf sediment exchange and evolution. Integrated data of 278 bottom samples, taken from the inner shelf, including 27 cores and 11 transverse shoreface bathymetric profiles, depth of up to 15 m, were analyzed. Geoprocessing data patterns show a regular bottom with gentle slopes, identifying three distinct morpho-sedimentaty sections: North, Central and South. The North and South sections reveal a heterogeneous pattern in the morphology and sedimentary distribution, contrasting with the South section, which has a more gradual sedimentary distribution fining out seaward. Correlations among textural statistic parameters, maps and sonographic records revealed variations, classifying 8 main facies. Bathymetric extended profiles, from the shoreface to the depth of 40 m, characterized the morphological shoreface-inner shelf dynamic boundaries (toe) at 18mon the Northern section, from 16mto 25mat the Central and South sections The shoreface shows marine dynamics over the geological control. Core facies and fauna show a morpho-structural and geological inheritance, responding to a coastline translation displacement. This process was responsible for the local variations of palimpsest and relict sediments, affecting ancient topography control of the coastline translation and past still steady sea levels, of the barrier variability, during the last HoloceneTransgression. |
publishDate |
2006 |
dc.date.issued.fl_str_mv |
2006 |
dc.date.accessioned.fl_str_mv |
2013-03-14T15:06:36Z |
dc.date.available.fl_str_mv |
2013-03-14T15:06:36Z |
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.citation.fl_str_mv |
GRUBER, Nelson Luiz Sambaqui et al. Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil. Journal of Coastal Research, v. 39, p. 664-668, 2006. Disponível em:<http://siaiacad09.univali.br/ics2004/arquivos/134_gruber.pdf>. Acesso em: 5 jul. 2012. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/3156 |
dc.identifier.issn.none.fl_str_mv |
0749-0208 |
identifier_str_mv |
GRUBER, Nelson Luiz Sambaqui et al. Morphodynamic limits of shoreface and inner shelf at the northern coast of Rio Grande do Sul, Brazil. Journal of Coastal Research, v. 39, p. 664-668, 2006. Disponível em:<http://siaiacad09.univali.br/ics2004/arquivos/134_gruber.pdf>. Acesso em: 5 jul. 2012. 0749-0208 |
url |
http://repositorio.furg.br/handle/1/3156 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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