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High-resolution Stratigraphy of Holocene Lagoon Terraces of Southern Brazil

Published online by Cambridge University Press:  20 January 2017

Natália B. dos Santos*
Affiliation:
Programa de Pós-Graduação em Geologia, Universidade do Vale do Rio dos Sinos (Unisinos), São Leopoldo (RS), Brazil
Ernesto L.C. Lavina
Affiliation:
Programa de Pós-Graduação em Geologia, Universidade do Vale do Rio dos Sinos (Unisinos), São Leopoldo (RS), Brazil
Paulo S.G. Paim
Affiliation:
Programa de Pós-Graduação em Geologia, Universidade do Vale do Rio dos Sinos (Unisinos), São Leopoldo (RS), Brazil
*
*Corresponding author at: 950, Av. Unisinos, Cristo Reio, CEP: 93022000, São Leopoldo, RS, Brazil. E-mail addresses:tatabraunsantos@hotmail.com (N.B. dos Santos), lavina@unisinos.br (E.L.C. Lavina), ppaim@unisinos.br (P.S.G. Paim).

Abstract

The northern portion of the coastal plain of the Rio Grande do Sul State (southernmost Brazil) comprises an outer sandy barrier that protects a complex lagoon system formed during the Holocene. The terraces of three different lagoons (Gentil, Malvas and Pinguela) formed along their margins record the depositional processes and the relative base level changes over the past 5000 yr. Therefore, our main objective was to characterize and quantify base level fluctuations from the study of these terraces, to correlate them to sea-level changes and to describe the depositional architecture related to the distinct sea-level stages (high-resolution sequence stratigraphy). Satellite images, topographic and GPR profiles, auger holes and radiometric dating were used. The main results indicate a close relationship between relative base level and relative sea-level changes, a stillstand period just after the last transgressive maximum (4840–4650 cal yr BP) and a subsequent overall relative sea-level fall of about 3 m. Both a normal (highstand systems tract) and a forced regression (falling-stage systems tract) controlled the geological record preserved in the terraces. The highstand (older terrace) is characterized by agradational bedding, whereas the falling stage comprises three progradational sets (terraces) bounded by erosive surfaces related to smaller-scale sea-level drops.

Type
Research Article
Copyright
University of Washington

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References

Angulo, R.J., and Lessa, G.C. (1997). The Brazilian sea-level curves: a critical review with emphasis on the curves from Paranaguá and Cananéia regions.. Marine Geology 140, 141166.Google Scholar
Angulo, R.J., Lessa, G.C., and Souza, M.C. (2006). A critical review of mid- to late-Holocene sea-level fluctuations on the eastern Brazilian coastline.. Quaternary Science Reviews 25, 486506.CrossRefGoogle Scholar
Barboza, E.G. (1999). Terraços da Margem Leste da Laguna dos Patos, Litoral Médio do Rio Grande do Sul: Estratigrafia e Evolução Holocênica Terraces of the Eastern Margin of the Patos Lagoon, Middle Coastline of Rio Grande do Sul: Stratigraphy and Holocene Evolution).. (M. Sc. Thesis) Curso de Pós-Graduação em Geociência/ Universidade Federal do Rio Grande do Sul [Graduate Program in Geosciences/ Federal University of Rio Grande do Sul], Porto Alegre.Google Scholar
Brückner, H., Kelterbaum, D., Marunchak, O., Porotov, A., and Vött, A. (2010). The Holocene sea level story since 7500 BP–lessons from the Eastern Mediterranean, the Black and the Azov Seas.. Quaternary International 225, 160179.Google Scholar
Buchmann, F.S.C., and Tomazelli, L.J. (2003). Relic nearshore shoals of RS, southern Brazil: origin and effects on nearby modern beaches.. Journal of Coastal Research 35, 318322.Google Scholar
Caron, F. (2007). Depósitos sedimentares associados a atual desembocadura do Arroio Chuí (Planície Costeira do Rio Grande do Sul) e sua relação com as variações do nível do mar durante o Holoceno Sedimentary Deposits Associated with the Current Mouth of the Arroio Chuí (Coastal Plain of Rio Grande do Sul) and its Relation to Changes in Sea Level During the Holocene).. (M. Sc. Thesis) Curso de Pós-Graduação em Geociências, Universidade Federal do Rio Grande do Sul [Graduate Degree in Geosciences. Federal University of Rio Grande do Sul].Google Scholar
Clark, P.U., and Mix, A.C. (2002). Ice sheets and sea level of the Last Glacial Maximum.. Quaternary Science Reviews 21, 17.Google Scholar
Côrrea, I.C.S. (1990). Analyse Morphostructurale et Évolution Paléogéographique de la Plate-Forme Continentale Atlantique Sud Brésilienne (Rio Grande do Sul, Brésil) Morphostructural Analysis and Paleogeographic Evolution of the Brazilian South Atlantic Continental Shelf (Rio Grande do Sul, Brazil)).. (Dissertation) Université de Bordeaux I, Bordeaux.Google Scholar
Côrrea, I.C.S. (1995). Les variations du niveau de la mer durant les derniers 17.500 ans BP: 1'exemple de la plate-forme continentale du Rio Grande do Sul- Brésil Changes in sea level during the last 17,500 yr BP: an example of the continental shelf of Rio Grande do Sul " Brazil.. Marine Geology 130, 163178.Google Scholar
Delaney, P.J.V. (1960). Lagoas cordiformes do Rio Grande de Sul, Brasil Cordiform lagoons of Rio Grande do Sul).. Boletim da Escola de Geologia 3, Universidade Federal do Rio Grande do Sul, Porto Alegre.124.Google Scholar
Delaney, P.J.V. (1965). Fisiografia e geologia da superfície da planície costeira do Rio Grande do Sul (Physiography and geology of the coastal plain surface of Rio Grande do Sul).. Publicação Especial da Escola de Geologia 6, Universidade Federal do Rio Grande do Sul, 1195.Google Scholar
Dillenburg, S.R. (1994). A Laguna de Tramandaí: Evolução Geológica e Aplicação do Método Geocronológico da Termoluminescência na Datação de Depósitos Sedimentares Lagunares (Tramandaí Lagoon: Geological Evolution and Application of the Geochronological Method of Thermoluminescence Dating of Lagoon Sedimentary Deposits).. (Doctorate Dissertation) Curso de Pós-Graduação em Geociências, Universidade Federal do Rio Grande do Sul [Graduate Degree in Geosciences–Federal University of Rio Grande do Sul].Google Scholar
Dillenburg, S.R. (1996). O potencial de preservação dos registros sedimentares do sistema deposicional Laguna/Barrier IV na costa do estado do Rio Grande do Sul (The potential for preservation of sedimentary records of the deposition system Laguna/Barrier IV in the coast of the state of Rio Grande do Sul).. Notas Técnicas do CECO 9, 111.Google Scholar
Dillenburg, S.R., Roy, P.S., Cowell, P.J., and Tomazelli, J.L. (2000). Influence of antecedent topography on coastal evolution as tested by the shoreface translation barrier model (STM).. Journal of Coastal Research 16, 7181.Google Scholar
Dillenburg, S.R., Tomazelli, L.J., Martins, L.R., and Barboza, E.G. (2005). Modificações de longo período da linha de costa das Barriers costeiras do Rio Grande do Sul (Long-term changes in the coastline of coastal barriers of Rio Grande do Sul).. Gravel 3, 914.Google Scholar
Heaton, T.J., Blackwell, P.G., and Buck, C.E. (2009). A Bayesian approach to the estimation of radiocarbon calibration curves: the INTCAL09 methodology.. Radiocarbon 51, 4 11511164.CrossRefGoogle Scholar
Hermany, G. (2009). Paleoecologia do Sistema Piguela-Palmital-Malvas, Holoceno da Bacia de Pelotas, RS, Brasil. Uma abordagem focada na utilização de diatomáceas (Bacillariophyta) como descritores paleoambientais (Paleoecology of the Piguela-Palmital-Malvas System, Pelotas Basin Holocene, Rio Grande do Sul (RS), Brazil).. (Doctorate Dissertation) Curso de Pós-Graduação em Geociências, Universidade Federal do Rio Grande do Sul [Graduate Degree in Geosciences–Federal University of Rio Grande do Sul].Google Scholar
Krusche, N., Saraiva, J.M.B., and Reboita, M.S. (2002). Normais Climatológicas Provisórias de 1991 a 2000 para Rio Grande, RS (Climatological Provisional Patterns from 1991 to 2000 for Rio Grande, RS).. Imprensa Universitária, Santa Maria.Google Scholar
Lima, L.G. (2008). Estratigrafia e evolução da Barrier holocênica na praia do Hermenegildo (RS) Stratigraphy and evolution of the Holocene barrier on Hermenegildo beach (Rio Grande do Sul)).. (M. Sc. Thesis) Programa de Pós-Graduação em Geociências, Universidade Federal do Rio Grande do Sul [Graduate Program in Geosciences–Federal University of Rio Grande do Sul].Google Scholar
Lima, L.G., Dillenburg, S.R., Medeanic, S., Barboza, E.G., Rosa, M.L.C.C., Tomazelli, L.J., Dehnhardt, B.A., and Caron, F. (2013). Sea-level rise and sediment budget controlling the evolution of a transgressive barrier in southern Brazil.. Journal of South American Earth Sciences 42, 2738.Google Scholar
Manzolli, R.P. (2011). Geomorfologia do Complexo de Cordões Litorâneos Lagunares do Pontal da Feitoria - Margem Oeste-Sul da Laguna dos Patos (Geomorphology of the Complex of Coastal Lagoon Ridges of Pontal da Feitoria - South-West Shore of Patos Lagoon).. (M. Sc. Thesis) Programa de Pós Graduação em Geociência - Universidade Federal do Rio Grande do Sul [Graduate Program in Geosciences – Federal University of Rio Grande do Sul], Porto Alegre.Google Scholar
Martin, L., and Suguio, K. (1992). Variation of coastal dynamics during the last 7000 yr recorded in beach-ridge plains associated with river mouths: example from the central Brazilian coast.. Palaeogeography, Palaeoclimatology, Palaeoecology 99, 119140.Google Scholar
Martin, L., Bittencourt, A.C.D.P., and Dominguez, J.M.L. (1998). Oscillations or not oscillations, that is the question: comment on Angulo, R. J. and Lessa, C.C. “The Brazilian sea-level curves: A critical review with emphasis on the curves from the Paranagua and Cananeia regions” [Marine Geology 140, 141-166].. Marine Geology 150, 179187.Google Scholar
Martin, L., Dominguez, J.M.L., and Bittencourt, A.C.S.P. (2003). Fluctuating Holocene sea levels in Eastern and Southeastern Brazil: Evidence from multiple fossil and geometric indicators.. Journal of Coastal Research 19, 101124.Google Scholar
Mason, O.K. (1993). The geoarchaeology of beach ridges and cheniers: studies of coastal evolution using archaeological data.. Journal of Coastal Research 9, 126146.Google Scholar
Medeanic, S., and Correa, I.C.S. (2010). Climatic changes in the coastal plain of the Rio Grande do Sul state in the Holocene: palynomorph evidences.. Pan-American Journal of Aquatic Sciences 5, 287297.Google Scholar
Motta, V.F. (1969). Relatório diagnóstico sobre a melhoria e o aprofundamento do acesso pela Barra do Rio Grande (Diagnostic report on improving and deepening the access through Barra do Rio Grande).. Instituto de Pesquisas Hidráulicas, UFRGS [Institute of Hydraulic Research, Federal University of Rio Grande do Sul], Porto Alegre.Google Scholar
Neal, A., and Roberts, C.L. (2000). Applications of ground-penetrating radar (GPR) to sedimentological, geomorphological and geoarchaeological studies in coastal environments.. In: Pye, K., Allen, J.R.L. (Eds.), Coastal and Estuarine Environments: Sedimentology, Geomorphology and Geoarchaeology. Geological Society, Special Publication. 175, pp. 139171.Google Scholar
Nimer, E. (1977). Clima (Climate).. Geologia do Brasil, Região SulGeology of Brazil, Southern RegionSERGRAF-IBGE, Rio de Janeiro.3579.Google Scholar
Oliveira, M.A.T., Porsani, J.L., Lima, G.L., Pieruschka, V.J., and Behling, H. (2012). Upper Pleistocene to Holocene peatland evolution in Southern Brazilian highlands as depicted by radar stratigraphy, sedimentology and palynology.. Quaternary Research 77, 397407.Google Scholar
Otvos, E.G. (2000). Beach ridges–definitions and significance.. Geomorphology 32, 83108.CrossRefGoogle Scholar
Peltier, W.R. (2002). Global glacial isostatic adjustment: palaeogeodetic and space-geodetic tests of the ICE-4G (VM2) model.. Journal of Quaternary Science 1, 491510.Google Scholar
Porsani, J.L. (1999). Ground Penetrating Radar (GPR): Proposta Metodológica de Emprego em Estudos Geológico-geotécnicos nas Regiões de Rio Claro e Descalvado–SP (Methodological Proposal for the Use in Geological and Geotechnical studies in the Regions of Rio Claro and Descalvado–SP).. (Doctorate Dissertation) Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista - UNESP, Campus de Rio Claro–SP [Institute of Geosciences and Exact Sciences, São Paulo State University Campus - UNESP, Rio Claro Campus–SP], .Google Scholar
Rosa, M.L.C.C. (2012). Geomorfologia, estratigrafia de sequencias e potencial de preservação dos sistemas Laguna-Barreira do Quaternário costeiro do Rio Grande do Sul(Tese de Doutorado) Instituto de Geociência, Universidade Federal do Rio Grande do Sul.Google Scholar
Silva, A.B. (2011). Análise estratigráfica da Barrier Transgressiva holocênica na Região da Lagoa do Sombrio–SC (Stratigraphic Analysis of the Holocene Transgressive Barrier in the Sombrio Lagoon Region–SC).. (M.Sc. Thesis) Curso de Pós-Graduação em Geociências, Universidade Federal do Rio Grande do Sul [Graduate Degree in Geosciences, Federal University of Rio Grande do Sul].Google Scholar
Suguio, K., Martin, L., and Bittencourt, A.C.S.P. (1985). Flutuações do nível do mar durante o Quaternário superior ao longo do litoral brasileiro e suas implicações na sedimentação costeira (Fluctuations in sea level during the upper Quaternary along the Brazilian coast and its implications for coastal sedimentation).. Revista Brasileira de Geociencias 15, 273286.Google Scholar
Tamura, T. (2012). Beach ridges prograded beach deposit as paleoenvironment records.. Earth Science Reviews 114, 279297.CrossRefGoogle Scholar
Tamura, T., Murakami, F., Nanayama, F., Watanabe, K., and Saito, Y. (2008). Ground-penetrating radar profiles of Holocene raised-beach deposits in the Kujukuri strand plain, Pacific coast of eastern Japan.. Marine Geology 248, 1127.Google Scholar
Tamura, T., Murakami, F., and Watanabe, K. (2010). Holocene beach deposits for assessing coastal uplift of the northeastern Boso Peninsula, Pacific coast of Japan.. Quaternary Research 74, 227234.Google Scholar
Tanner, W.F. (1995). Origin of beach ridge and swales.. Marine Geology 129, 149161.Google Scholar
Taylor, M.J., and Stone, G.W. (1996). Beach ridges: a review.. Journal of Coastal Research 12, 612621.Google Scholar
Tomazelli, L.J. (1990). Contribuição ao estudo dos sistemas deposicionais holocênicos do nordeste da Província Costeira do Rio Grande do Sul - com ênfase no sistema eólico (Contribution to the study of Holocene depositional systems in northeastern Coastal Province of Rio Grande do Sul - with emphasis on the wind system).. (Doctorate Dissertation) Curso de Pós-Graduação em Geociências/Universidade Federal do Rio Grande do Sul [Graduate Degree in Geosciences, Federal University of Rio Grande do Sul].Google Scholar
Tomazelli, L.J. (1993). O regime dos ventos e a taxa de migração das dunas eólicas costeiras do Rio Grande do Sul, Brasil (The wind regime and the migration rate of coastal eolian dunes of Rio Grande do Sul, Brazil).. Pesquisas 20, 1826.Google Scholar
Tomazelli, L.J., and Dillenburg, S.R. (2007). Sedimentary facies and stratigraphy of a last interglacial coastal barrier in south Brazil.. Marine Geology 244, 3345.Google Scholar
Tomazelli, L.J., and Villwock, J.A. (1991). Geologia do Sistema Lagunar Holocênico do Litoral Norte do Rio Grande do Sul, Brasil (Geology of the Holocene lagoon system of the north coast of Rio Grande do Sul, Brazil).. Pesquisas 18, 1324.Google Scholar
Tomazelli, L.J., and Villwock, J.A. (2000). O Cenozóico no Rio Grande do Sul: Geologia da Planicie Costeira.. In: Holz, L.F, Deros, L.F (Eds.), Geologia do Rio Grande do Sul. Instituto de Geociências, Universidade Federal do Rio Grande do Sul, pp. 375406.Google Scholar
Tomazelli, L.J., and Vilwock, J.A. (2005). Mapeamento geológico da planície costeira: a exemplo da Costa do Rio Grande do Sul (Geologic mapping of the Coastal Plain: the Example of the Rio Grande do Sul Coast).. Gravel 3, 109115.Google Scholar
Tomazelli, L.J., Dillenburg, S.R., and Villwock, J.A. (2000). Late quaternary geological history of Rio Grande do Sul coastal plain, Southern Brazil.. Revista Brasileira de Geociencias 30, 470472. (Porto Alegre).Google Scholar
Travessas, F.A., Dillenburg, S.R., and Clerot, L.C.P. (2005). Estratificação e evolução da barreira Holocênica do Rio Grande do Sul no Trecho Tramandaí–Cidreira (Stratification and evolution of the Holocene barrier of Rio Grande do Sul between Tramandaí and Cidreira).. Boletim Paranaense de Geociências 57, 5773.CrossRefGoogle Scholar
Van Dam, R.L. (2001). Causes of ground-penetrating radar reflections in sediment. (PhD Thesis)University of Amsterdam, .Google Scholar
Villwock, J.A. (1972). Contribuição " Geologia do Holoceno da Província Costeira do Rio Grande do Sul (Contribution to the Holocene Geology of the Coastal Province of Rio Grande do Sul).. (M. Sc. Thesis) Curso de Pós-Graduação em Geociências, Universidade Federal do Rio Grande do Sul [Graduate Degree in Geosciences, Federal University of Rio Grande do Sul].Google Scholar
Villwock, J.A. (1984). Geology of the coastal province of Rio Grande do Sul, southern Brazil: a synthesis.. Pesquisas 16, 549.Google Scholar
Villwock, J.A., and Tomazelli, L.J. (1995). Geologia costeira do Rio Grande do Sul (Coastal geology of Rio Grande do Sul).. Notas Técnicas 8, 145.Google Scholar
Villwock, J.A., Tomazelli, L.J., Loss, E.L., Dehnhardt, E.A., Horn, F.N.O., Bachi, F.A., and Dehnhardt, B.A. (1986). Geology of the Rio Grande do Sul coastal province.. Rabasa, J. (Ed.), Quaternary of South America and Antarctic Peninsula. 4, pp. 7997.Google Scholar
Weschenfelder, J., Corrêa, I.C.S., and Aliotta, S. (2005). Elementos arquiteturais do substrato da Lagoa dos Patos revelados por sísmica de alta resolução (Architectural elements of the Patos Lagoon substrate revealed by high-resolution seismic survey).. Pesquisas em Geociências 32, 5767.Google Scholar
Zenkovitch, V.P. (1959). On the genesis of cuspate spits along lagoon shores.. Journal of Geology 67, 269277.Google Scholar