%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Amaral, P. G. C.
%A Giannini, P. C. F.
%A Sylvestre, Florence
%A Pessenda, L. C. R.
%T Paleoenvironmental reconstruction of a Late Quaternary lagoon system in southern Brazil (Jaguaruna region, Santa Catarina state) based on multi-proxy analysis
%D 2012
%L fdi:010055850
%G ENG
%J Journal of Quaternary Science
%@ 0267-8179
%K Late Quaternary ; lagoon system ; sedimentary dynamics ; geochemistry ; diatom analysis ; pollen analysis
%M ISI:000303057300007
%N 2
%P 181-191
%R 10.1002/jqs.1531
%U https://www.documentation.ird.fr/hor/fdi:010055850
%> https://www.documentation.ird.fr/intranet/publi/2012/05/010055850.pdf
%V 27
%W Horizon (IRD)
%X This paper provides a paleoenvironmental reconstruction of a Late Quaternary lagoon system in the Jaguaruna region of Santa Catarina state, southern Brazil. Integrated results of bulk sedimentary organic matter characterization (delta C-13, delta N-15 and C/N), microfossil (pollen and diatom) and grain-size analysis from three shallow cores (similar to 2.5m depth) allowed us to propose an evolving paleogeographic scenario in this coastal region for the last ca. 5500 cal a BP. The lagoonal system in this area was more extensive during the mid-Holocene than today, with a gradual and continuous lagoon-sea disconnection until the present. We add to the debate regarding relative sea-level (RSL) variations for the Brazilian coast during the Holocene and discuss the importance of sedimentary dynamics for interpreting changes in coastal ecosystems. The multi-proxy analysis suggests that changes in coastal ecosystems could be directly related to local sedimentary processes, which are not necessarily linked to RSL fluctuations and/or to climatic variations.
%$ 064 ; 036