Articles | Volume 15, issue 4
Research article
22 Jul 2019
Research article |  | 22 Jul 2019

Mid–late Holocene event registered in organo-siliciclastic sediments of Lagoa Salgada carbonate system, southeast Brazil

Anna Paula Soares Cruz, Cátia Fernandes Barbosa, Angélica Maria Blanco, Camila Areias de Oliveira, Cleverson Guizan Silva, and José Carlos Sícoli Seoane

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Cited articles

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Barbosa, C. F.: Reconstituição paleoambiental de fácies lagunares com base em foraminiferos: O nível do mar no Quaternário Superior na área de Cabo Frio, RJ, Universidade de São Paulo, Instituto de Geociências, 278 pp., 1997. 
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Behling, H.: Late Quaternary vegetational and climatic changes in Brazil, Rev. Palaeobot. Palyno., 99, 143–156,, 1998. 
Bernal, J. P., Cruz, F. W., Stríkis, N. M., Wang, X., Deininger, M., Catunda, M. C. A., Ortega-Obregón, C., Cheng, H., Edwards, R. L., and Auler, A. S.: High-resolution Holocene South American monsoon history recorded by a speleothem from Botuverá Cave, Brazil, Earth Planet. Sc. Lett., 450, 186–196,, 2016. 
Short summary
Salgada Lagoon is a hypersaline lake investigated for its sedimentation history in order to interpret past climatic events. We studied the geochemistry of sediments from 5800 years ago until the present and found sea level oscillations, different climatic conditions, and proxies for vegetation cover and productivity, which highlight a dry event 4200 years ago that matches a global event of the same age, marking changes to favorable conditions for carbonates microbial mats and stromatolites.