Reconstrucción de paleoambientes holocenos de la costa de Miramar (provincia de Buenos Aires, Argentina) basada en diatomeas.
2001; Asociación Paleontológica Argentina; Volume: 38; Issue: 1 Linguagem: Inglês
ISSN
1851-8044
Autores Tópico(s)Diatoms and Algae Research
ResumoA sequence developed as a result of Holocene sea level fluctuations is described based on diatom-assemblage analysis. The 1.5 m section is close to Punta Hermengo, Miramar. Life habits and salinity tolerances of diatom taxa were used for the environmental reconstruction; multivariate analytical techniques were also applied. At the base of the section, high percentages of brackish-planktonic taxa represent a tidal channel infilling. Mesohalobous, benthical epiphytic taxa characterize the overlying sediments, suggesting a brackish, shallow, stable environment such as a swamp with a restricted connection to the sea.
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