Sea-level fluctuations and coastal evolution in the state of Rio de Janeiro, southeastern Brazil

Castro, João Wagner Alencar; Suguio, Kenitiro; Seoane, José Carlos Sícoli; Cunha, Aline Meneguci da; Dias, Fábio Ferreira

doi:10.1590/0001-3765201420140007

Cited by 78 publications

(107 citation statements)

References 19 publications

(107 reference statements)

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“…As a result, their final paleo-sea level curve is not a relative curve but a curve showing the altitude of the paleosea level indicators (vermetids and beachrock shells). Castro et al (2014) postulate that one of the greatest challenges in generating an RSL curve is defining the altitude of the biological and geological samples in reference to "zero" (i.e., the current mean sea-level). It has been well known since the seminal papers of Hartt (1870) and Branner (1902Branner ( , 1904 that paleo-sea level reconstructions must consider the vertical distance between a given indicator and its present homologous one.…”

Section: Resultsmentioning

confidence: 99%

“…Martin et al 1982, Van de Plassche 1986, Pirazzoli 1996. Castro et al (2014) also postulate that several investigations conducted on the South American coasts regarding relative sea-level variations have not clearly or precisely defined the reference level of the samples used in the vertical plane. This is true because it is not necessary.…”

Section: Resultsmentioning

confidence: 99%

“…To use the beachrock, or any coastal sedimentary deposit, as an indication of paleo-sea levels demands knowledge of its sedimentary facies association. No information about the beachrock facies is provided by Castro et al (2014). The authors only inform that the sedimentological and stratigraphic characteristics of the beach environment, which include a tabular morphology with smooth dips below >3° and a micro-tidal regime with variations of <1.0 m on the coast of the state of Rio de Janeiro, confer accuracy to these rocks as indicators of the mean sea-level.…”

Section: (B) Shells From Beachrocksmentioning

confidence: 99%

“…Stoddart and Cann 1965, Hopley 1986, Turner 2005, Vousdoukas et al 2007. One of the samples used by Castro et al (2014) to build their curve corresponds to mollusk shell fragments from Jaconé beachrock described and dated by Mansur et al (2011). After analyzing the beachrock facies, Mansur et al (2011) concluded that the dated shells fragments were deposited at the lower part of the beach face at a time when sea-level was a little lower than the present one.…”

Section: (B) Shells From Beachrocksmentioning

confidence: 99%

“…This works aims to comment and provide alternative interpretations to the data used by Castro et al (2014) to discuss the behavior of the paleo-sea level at Rio de Janeiro coast during the Mid to Late Holocene. Castro et al (2014) paper presents new relevant information to aid with Holocene relative sealevel (RSL) reconstructions along the coast of Rio de Janeiro. The data set is extensive (29 listed indicators, out of which 14 were used in the sea level curve) and from different sources.…”

Section: Introductionmentioning

confidence: 99%

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Holocene paleo-sea level changes along the coast of Rio de Janeiro, southern Brazil: Comment on Castro et al. (2014)

Angulo

Giannini²,

Souza

et al. 2016

An. Acad. Bras. Ciênc.

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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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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: (B) Shells From Beachrocksmentioning

confidence: 99%