HOLOCENE PALEO-SEA LEVEL IN SOUTHEASTERN BRAZIL: AN APPROACH BASED ON VERMETIDS SHELLS

• Main Authors: Jesus, Perla Baptista de, Dias, Fábio Ferreira, Muniz, Raquel de Azeredo, Macário, Kita Chaves Damásio, Seoane, José Carlos Sicoli, Quattrociocchi, Daniel Garcez Santos, Cassab, Rita de Cassia Tardin, Aguilera, Orangel, Souza, Rosa Cristina Corrêa Luz de, Alves, Eduardo Queiroz, Chanca, Ingrid Silva, Carvalho, Carla Regina Alves, Araujo, Julia Caon
• Format: Article in Journal/Newspaper
• Language: English
• Published: Universidade do Estado do Rio de Janeiro 2017
• Subjects: Sea level. Petaloconchus. Paleoenvironment; radiocarbon. Quaternary. South Atlantic Ocean. Armação dos Búzios; South Atlantic Ocean
• Online Access: https://www.e-publicacoes.uerj.br/jse/article/view/28158

This paper reconstructs the relative sea level changes during the Holocene on the southeastern Brazilian coastal region (Armação dos Búzios city, at north of Rio de Janeiro state), based on the presence of rocky bottom worm snails, Vermetidae (Mollusca: Gastropoda) as bioindicators. Chronology was established by radiocarbon Accelerator Mass Spectrometry technique. Three evolutionary stages of sea level were established: sea-level lower than the current one between 8,148-6,300 cal yr BP, a rising of sea level between 6,300-4,500 cal yr BP, with a transgressive maximum of about 2.4 m above the present level at 4,700-4,500 cal yr BP, and a sea level drop from 4,500 cal yr BP until the present.