Late Quaternary in a South Atlantic estuarine system: Stratigraphic and paleontologic indicators of coastal evolution.

Authors
Aliotta, Salvador; Ginsberg, Silvia Susana; Spagnuolo, Jorge Osvaldo; Farinati, Ester Amanda; Giagante, Dario Andres; Vecchi, Laura Gabriela
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
The decisive influence of Late Quaternary sea level changes on the geological evolution of the coastal plain and adjacent continental shelf around the world has long been recognized. Coastal environments evolve actively during transgressiveeregressive cycles whose development depends on sea level and sediment supply variations. The interaction of these variables was key to the current morphological and sedimentological configuration of coastal regions. Particularly, the estuarine system of Bahía Blanca (Argentina) presents various types of deposits and marine fossil accumulations, such as paleochannels in the subbottom, sand-shell ridges and extensive layers with fossils in life position. These features are important geological indicators, because its analysis allows us to define different paleoenvironmental conditions that prevailed during the coastal evolutionary process.
Fil: Aliotta, Salvador. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Arg.de Oceanografia (i); Argentina;
Fil: Ginsberg, Silvia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Arg.de Oceanografia (i); Argentina;
Fil: Spagnuolo, Jorge Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Arg.de Oceanografia (i); Argentina;
Fil: Farinati, Ester Amanda. Universidad Nacional del Sur; Argentina;
Fil: Giagante, Dario Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Arg.de Oceanografia (i); Argentina;
Fil: Vecchi, Laura Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Arg.de Oceanografia (i); Argentina;
Subject
Marine deposits
Paleochannels
Seismic stratigraphy
Paleontology
Ciencias Naturales y Exactas
Ciencias de la Tierra y Relacionadas Con El Medio Ambiente
Geología
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/1026