geosciences Article Holocene Sea-Level Changes in Southern Brazil Based on High-Resolution Radar Stratigraphy Eduardo Guimarães Barboza 1,2,* , Sergio Rebello Dillenburg 1, Matias do Nascimento Ritter 2, Rodolfo José Angulo 3, Anderson Biancini da Silva 4, Maria Luiza Correaa da Camara Rosa 1, Felipe Caron 2 and Maria Cristina de Souza 3 1 Centro de Estudos de Geologia Costeira e Oceânica, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil;
[email protected] (S.R.D.);
[email protected] (M.L.C.d.C.R.) 2 Centro de Estudos Costeiros, Limnológicos e Marinhos, Campus do Litoral, Universidade Federal do Rio Grande do Sul, Imbé 95625-000, RS, Brazil;
[email protected] (M.d.N.R.);
[email protected] (F.C.) 3 Laboratório de Estudos Costeiros, Departamento de Geologia, Universidade Federal do Paraná, Curitiba 81530-000, PR, Brazil; fi
[email protected] (R.J.A.);
[email protected] (M.C.d.S.) 4 Gerência de Licenciamento Ambiental de Atividades Estratégicas, Instituto do Meio Ambiente de Santa Catarina, Florianópolis 88020-300, SC, Brazil;
[email protected] * Correspondence:
[email protected]; Tel.: +55-51984776200 Abstract: This paper focuses on high-resolution coastal stratigraphy data, which were revealed by the Ground Penetrating Radar (GPR) system. Surveys performed with GPR on the surface of prograded barriers reveal patterns of reflections that allow the interpretation of the geometry and stratigraphy of coastal deposits in a continuous mode. At the Curumim prograded barrier in southern Brazil Citation: Barboza, E.G.; Dillenburg, (29◦300 S–49◦530 W), a two-dimensional transverse GPR survey revealed, with high precision, a serial S.R.; do Nascimento Ritter, M.; of contacts between aeolian deposits of relict foredunes and relict beach deposits that have a strong Angulo, R.J.; da Silva, A.B.; da Camara Rosa, M.L.C.; Caron, F.; de correlation with sea level.