Data/hora: 14/06/2024 16:36:24

Biblioteca(s): | Embrapa Tabuleiros Costeiros.
Data corrente: | 05/10/1998
Data da última atualização: | 19/10/2007
Autoria: | OLIVEIRA, M. I. M. de; BAGNOLI, E.; FARIAS, C. C.; NOGUEIRA, A. M. B.; SANTIAGO, M.
Título: | Considerações sobre a geometria, petrografia, sedimentologia, diagenese e idade dos Beachrocks do Rio Grande do Norte.
Ano de publicação: | 1990
Fonte/Imprenta: | IN: CONGRESSO BRASILEIRO DE GEOLOGIA, 36., 1990. v. 2, p. 621-634.
Idioma: | Inglês
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).
Palavras-Chave: | Anomalocardia braziliana; Arrecifes; Beachrocks; Brasilian coastal; Costa brasileira; Petrografia; Petrography.
Categoria do assunto: | --
Registro original: | Embrapa Tabuleiros Costeiros (CPATC)
Exemplares: | CPATC - (17085-1) - ADD - SP - -- -  -  - SP4493 - DIS