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Morphodynamics and chronology of quaternary aeolian depositional systems in Brazil

Grant number: 09/54232-4
Support Opportunities:Regular Research Grants
Duration: April 01, 2012 - March 31, 2014
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal Investigator:Paulo César Fonseca Giannini
Grantee:Paulo César Fonseca Giannini
Host Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This project aims to establish the stratigraphic and cronological framework of aeolian depositional systems in the Quatemary of Brazil. To this scientific purpose, two methodological goals are associated. The first one consists in contribute to application, development and diffusion, in Brazil, of new procedures of dating terrígenous Quatemary sediments by optically stimulated luminescence (OSL) techniques. The second methodological aim consists in construct a conceptual model for the configuration and dynamics of aeolian systems, from a systemic perspective. To reach these aims, the main objectives drawn are: to define by remote sensing the spatial distribution of aeolian morphologic elements and morpho-stratigraphic unities in coastal and interior Brazilian dune fields; to make the depositional facies and stratigraphic unities analysis in selected dune fields; to date these unities by OSL and to do their textural, mineralogical and petrographic characterization; to integrate the field, laboratory and dating data set, aiming to evaluate possible relations between ages and sedimentary supply variations; to link these supply variations with changes in the fundamental control factors of the aeolian sedimentation, with special attention to the relative sea level (RSL) and to the climate. The realization of this late objective demands to know, in a secure and precise way, the variation of these control factors along the geological time. Thus, two parallel objectives are established: the critical bibliographic compilation and correlation of Quatemary paleoclimatic reconstructions in different regions of Brazil, from distinct kinds of data (palinogical, isotopic etc); and the refinement of the Holocene RSL curve, in strategic sectors of the Brazilian coast, by means of leveling and 14C dating of fossil vermetidae shells. (AU)

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Scientific publications (10)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
VINÍCIUS RIBAU MENDES; PAULO CÉSAR FONSECA GIANNINI; CARLOS CONFORTI FERREIRA GUEDES; REGINA DEWITT; HELENA ASMAR DE ABREU ANDRADE. Cronologia dos campos de dunas da costa central catarinense e a influência do nível relativo do mar e das mudanças climáticas. BRAZILIAN JOURNAL OF GEOLOGY, v. 45, p. 79-95, . (09/53988-8, 09/54232-4)
MENDES, VINICIUS RIBAU; FONSECA GIANNINI, PAULO CESAR. Coastal dunefields of south Brazil as a record of climatic changes in the South American Monsoon System. Geomorphology, v. 246, p. 22-34, . (09/54232-4, 09/53988-8)
ZULAR, ANDRE; SAWAKUCHI, ANDRE O.; GUEDES, CARLOS C. F.; GIANNINI, PAULO C. F.. Attaining provenance proxies from OSL and TL sensitivities: Coupling with grain size and heavy minerals data from southern Brazilian coastal sediments. Radiation Measurements, v. 81, n. SI, p. 39-45, . (09/54232-4, 09/53988-8)
HELBERT MEDEIROS PRADO; MARCELO NIVERT SCHLINDWEIN; RUI SÉRGIO SERENI MURRIETA; DANIEL RODRIGUES DO NASCIMENTO JÚNIOR; ELIEL PEREIRA DE SOUZA; MARILIA CUNHA-LIGNON; MICHEL MICHAELOVITCH DE MAHIQUES; PAULO CÉSAR FONSECA GIANNINI; RIGUEL FELTRIN CONTENTE. O CANAL DO VALO GRANDE NO COMPLEXO ESTUARINO CANANÉIA-IGUAPE (SP, BRASIL): HISTÓRIA AMBIENTAL, ECOLOGIA E PERSPECTIVAS FUTURAS. Ambiente & Sociedade, v. 22, . (17/25105-0, 09/54232-4)
RODRIGUES, SELMA ISABEL; PORSANI, JORGE LUIS; FONSECA GIANNINI, PAULO CESAR; FORNARI, MILENE; ATORRE, TIAGO; DEBLASIS, PAULO; GAETA RUIZ, DANIELLA MAGALHAES. Radarfacies and sedimentological analysis: Study of sedimentary substrate from an archaeological site (shell mound), southern Brazil. HOLOCENE, v. 25, n. 8, p. 1257-1270, . (10/11617-0, 04/11038-0, 09/54232-4)
TONIOLO, THIAGO DE FREITAS; FONSECA GIANNINI, PAULO CESAR; ANGULO, RODOLFO JOSE; DE SOUZA, MARIA CRISTINA; RUIZ PESSENDA, LUIZ CARLOS; SPOTORNO-OLIVEIRA, PAULA. Sea-level fall and coastal water cooling during the Late Holocene in Southeastern Brazil based on vermetid bioconstructions. MARINE GEOLOGY, v. 428, . (09/54232-4, 13/21941-8)
ZULAR, ANDRE; SAWAKUCHI, ANDRE O.; WANG, HONG; GUEDES, CARLOS C. F.; HARTMANN, GELVAM A.; JAQUETO, PLINIO F.; CHIESSI, CRISTIANO M.; CRUZ, FRANCISCO W.; GIANNINI, PAULO C. F.; DAROS, VINICIUS K.; et al. The response of a dune succession from Lencois Maranhenses, NE Brazil, to climate changes between MIS 3 and MIS 2. QUATERNARY INTERNATIONAL, v. 537, p. 97-111, . (09/53988-8, 09/54232-4)
RODRIGUES, FERNANDA C. G.; GIANNINI, PAULO C. F.; FORNARI, MILENE; SAWAKUCHI, ANDRE O.. Deglacial climate and relative sea level changes forced the shift from eolian sandsheets to dunefields in southern Brazilian coast. Geomorphology, v. 365, . (09/53988-8, 09/54232-4)
ZULAR, ANDRE; UTIDA, GISELLE; CRUZ, FRANCISCO W.; SAWAKUCHI, ANDRE O.; WANG, HONG; BICEGO, MARCIA; GIANNINI, PAULO C. F.; RODRIGUES, I, SELMA; GARCIA, GUILHERME P. B.; VUILLE, MATHIAS; et al. The effects of mid-Holocene fluvio-eolian interplay and coastal dynamics on the formation of dune-dammed lakes in NE Brazil. QUATERNARY SCIENCE REVIEWS, v. 196, p. 137-153, . (09/54232-4, 09/53988-8)
FERREIRA GUEDES, CARLOS CONFORTI; FONSECA GIANNINI, PAULO CESAR; SAWAKUCHI, ANDRE OLIVEIRA; DEWITT, REGINA; PAULINO DE AGUIAR, VICTOR ANGELO. Weakening of northeast trade winds during the Heinrich stadial 1 event recorded by dune field stabilization in tropical Brazil. Quaternary Research, v. 88, n. 3, p. 369-381, . (09/10521-2, 09/54232-4)

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