Abstract
BIOSTRATIGRAPHY (FORAMINIFERIDA) OF THE 1-SCS-3B DRILL-HOLE, PLATAFORMA DE FLORIANOPOLIS, PELOTAS BASIN, BRAZIL. Planktonic foraminifers recovered from 1-SCS-3B drill hole, Florianopolis Platform, State of Santa Catarina, Brazil, represent 60 species and subspecies belonging to 13 genera, whose stratigraphic range indicates a Neogene age for the sediments herein studied. The analysis of this assemblage allowed the recognition of eight zones, in stratigraphic order: Catapsydrax dissimilis, C. stainforthi, Globorotalia fohsi fohsi, Globigerinoides ruber, Globorotalia mayeri, G. acostaensis/ G. menardii, G. margaritae evoluta and Globigerinoides trilobus fistulosus. Four important hiatuses were observed in the studied sedimentary sequence, whose are situated at Oligocene-Miocene boundary, Early Miocene, Early Miocene-Middle Miocene and Miocene-Pliocene boundary. Correlations with previous zonations for the area are discussed.
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