Open AccessAnálise de Polens para a Interpretação Paleoambiental de Sedimentos com 3520 anos A.P. na Baía de Guanabara, Rio de Janeiro, Brasil
Author(s) -
Ortrud Monika Barth,
Cíntia Ferreira Barreto,
Claudia Gutterres Vilela,
José Antônio Baptista-Neto
Publication year - 2011
Publication title -
anuário do instituto de geociências
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.202
H-Index - 12
eISSN - 1982-3908
pISSN - 0101-9759
DOI - 10.11137/2011_2_9-13
Subject(s) - bay , dominance (genetics) , palynology , sediment , geology , forestry , vegetation (pathology) , holocene , transgressive , geography , oceanography , ecology , geomorphology , pollen , biology , medicine , sedimentary depositional environment , biochemistry , pathology , structural basin , gene
The intention of the present investigation was to understand the dynamic of different types of vegetation that occurred in the Guanabara Bay region, Rio de Janeiro, during the recent Holocene, analyzing a sediment level of conventional 3520 À 50 years B.P. old, obtained in the Jurujuba sound. Palynological analysis of the sediment showed dominance of the Ombrophilous Forest, and plant taxa of the field vegetation were not frequent. Environment conditions were favorable to hygrophyte plant development. Similar dynamic of this transgressive sea level event was detected also in other coastal areas of the state of Rio de Janeiro, far from the Guanabara Bay.