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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
05/10/1998 |
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Data da última atualização: |
19/10/2007 |
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Autoria: |
OLIVEIRA, M. I. M. de; BAGNOLI, E.; FARIAS, C. C.; NOGUEIRA, A. M. B.; SANTIAGO, M. |
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Título: |
Considerações sobre a geometria, petrografia, sedimentologia, diagenese e idade dos Beachrocks do Rio Grande do Norte. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
IN: CONGRESSO BRASILEIRO DE GEOLOGIA, 36., 1990. v. 2, p. 621-634. |
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Idioma: |
Inglês |
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Conteúdo: |
The present work deals with the beachrocks that occur between the forte and barra do cunhau beachs, covering about 60km of the east coast of the Rio Grande do Norte State. Two subparallel lines of beachrocks are present in this area, reaching locally continuous extensions of up to 8km. They are constituted by coarse grained, mature, bioclastic quartzarenites. The most continuous beachrock line, informally called beachrock 1, is about 4700 Y.B.P. in age and has undergone many phases of exposure and submersion due to sea-level fluctuations. These phases have been reconstituted by studying the diagenetic evolution of this beachrock, and the results were correlated to the Salvador(BA), sea-level fluctuation curve, established by Suguio et al.(1985). |
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Palavras-Chave: |
Anomalocardia braziliana; Arrecifes; Beachrocks; Brasilian coastal; Costa brasileira; Petrografia; Petrography. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01513naa a2200253 a 4500
001 1370099
005 2007-10-19
008 1990 bl --- 0-- u #d
100 1 $aOLIVEIRA, M. I. M. de
245 $aConsiderações sobre a geometria, petrografia, sedimentologia, diagenese e idade dos Beachrocks do Rio Grande do Norte.
260 $c1990
520 $aThe present work deals with the beachrocks that occur between the forte and barra do cunhau beachs, covering about 60km of the east coast of the Rio Grande do Norte State. Two subparallel lines of beachrocks are present in this area, reaching locally continuous extensions of up to 8km. They are constituted by coarse grained, mature, bioclastic quartzarenites. The most continuous beachrock line, informally called beachrock 1, is about 4700 Y.B.P. in age and has undergone many phases of exposure and submersion due to sea-level fluctuations. These phases have been reconstituted by studying the diagenetic evolution of this beachrock, and the results were correlated to the Salvador(BA), sea-level fluctuation curve, established by Suguio et al.(1985).
653 $aAnomalocardia braziliana
653 $aArrecifes
653 $aBeachrocks
653 $aBrasilian coastal
653 $aCosta brasileira
653 $aPetrografia
653 $aPetrography
700 1 $aBAGNOLI, E.
700 1 $aFARIAS, C. C.
700 1 $aNOGUEIRA, A. M. B.
700 1 $aSANTIAGO, M.
773 $tIN: CONGRESSO BRASILEIRO DE GEOLOGIA, 36., 1990.$gv. 2, p. 621-634.
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