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Updated: Jul 25, 2026

Sediment Core Extrusion Method at Millimeter Resolution Using a Calibrated, Threaded-rod
Published on: August 17, 2016
Holocene paleo-sea level changes along the coast of Rio de Janeiro, southern Brazil: Comment on Castro et al. (2014)
Rodolfo J Angulo1, Paulo C F Giannini2, Maria Cristina DE Souza1
1Centro Politécnico, Departamento de Geologia, UFPR, Laboratório de Estudos Costeiros/Lecost, Av. Cel. Francisco H. dos Santos, 210, Jardim das Américas, 81531-970 Curitiba, PR, Brazil.
Abstract:
The present work discusses and reinterprets paleo-sea level indicators used to build Holocene sea-level curve for the coast of Rio de Janeiro at former works. We conclude that: (a) the paleo-sea levels inferred by vermetid remains show that sea-level has fallen over the past 4400 years, at least; (b) the paleo-sea level inferred by the beachrock facies and dated shells of Jaconé shows that sea-level was near the present elevation between 8198 and 5786 years before present; and (c) several shells from other beachrocks were deposited probably thousands of years after the specimens died and consequently do not allow precise reconstructions of paleo-sea levels. These conclusions differ from the conclusions of the original paper.
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