Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina

In this study we examine the distribution patterns of modern palynological assemblages from different salt marsh zones and microenvironments in order to generate reference data for the north-central sector of Bahía Samborombón, to be used as analogues for interpreting fossil palynological assemblage...

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Autores principales: Luengo, Mariel Samanta, Vilanova, Isabel, Pisano, María Florencia, D'Amico, Gabriela Mariana, Pommarés, Nicole Nadín, Fucks, Enrique Eduardo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Ciencias Naturales
NE-Coastal plain
Bahía Samborombón
Salt marsh zones
Modern palynological assemblages
Paleoenvironments
Holocene sea-level reconstructions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/169190
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-169190
record_format dspace
spelling I19-R120-10915-1691902024-08-28T20:05:06Z http://sedici.unlp.edu.ar/handle/10915/169190 Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina Luengo, Mariel Samanta Vilanova, Isabel Pisano, María Florencia D'Amico, Gabriela Mariana Pommarés, Nicole Nadín Fucks, Enrique Eduardo 2020-11-15 2024-08-28T14:30:29Z en Ciencias Naturales NE-Coastal plain Bahía Samborombón Salt marsh zones Modern palynological assemblages Paleoenvironments Holocene sea-level reconstructions In this study we examine the distribution patterns of modern palynological assemblages from different salt marsh zones and microenvironments in order to generate reference data for the north-central sector of Bahía Samborombón, to be used as analogues for interpreting fossil palynological assemblages. For the modern palynological analysis, 23 surface sediment samples were taken from different tidal environments in the coastal zone, including intertidal, low, middle and high salt marsh. The results allowed to differentiate and characterize the tidal environments from the palynological point of view. Small changes in the microrelief such as tidal channels, cheniers, and depressions areas, modify the local vegetation and therefore determine the final palynological assemblage. Fossil data from the central zone of Bahía Samborombón (PM 1 stratigraphic sequence) was compared with the modern pollen data to interpret vegetation and paleoenvironmental changes; which demonstrated that salinity, mainly related to the tidal influence, drove the paleoenvironmental changes. This study provides new modern palynological data for Bahía Samboromb´on and may constitute an important tool to interpret Holocene fossil sediment sequences. This data could be used in future paleoenvironmental reconstructions in coastal plain deposits whose evolution are linked to relative sea-level fluctuations. Centro de Estudios Integrales de la Dinámica Exógena Consejo Nacional de Investigaciones Científicas y Técnicas Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
NE-Coastal plain
Bahía Samborombón
Salt marsh zones
Modern palynological assemblages
Paleoenvironments
Holocene sea-level reconstructions
spellingShingle Ciencias Naturales
NE-Coastal plain
Bahía Samborombón
Salt marsh zones
Modern palynological assemblages
Paleoenvironments
Holocene sea-level reconstructions
Luengo, Mariel Samanta
Vilanova, Isabel
Pisano, María Florencia
D'Amico, Gabriela Mariana
Pommarés, Nicole Nadín
Fucks, Enrique Eduardo
Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina
topic_facet Ciencias Naturales
NE-Coastal plain
Bahía Samborombón
Salt marsh zones
Modern palynological assemblages
Paleoenvironments
Holocene sea-level reconstructions
description In this study we examine the distribution patterns of modern palynological assemblages from different salt marsh zones and microenvironments in order to generate reference data for the north-central sector of Bahía Samborombón, to be used as analogues for interpreting fossil palynological assemblages. For the modern palynological analysis, 23 surface sediment samples were taken from different tidal environments in the coastal zone, including intertidal, low, middle and high salt marsh. The results allowed to differentiate and characterize the tidal environments from the palynological point of view. Small changes in the microrelief such as tidal channels, cheniers, and depressions areas, modify the local vegetation and therefore determine the final palynological assemblage. Fossil data from the central zone of Bahía Samborombón (PM 1 stratigraphic sequence) was compared with the modern pollen data to interpret vegetation and paleoenvironmental changes; which demonstrated that salinity, mainly related to the tidal influence, drove the paleoenvironmental changes. This study provides new modern palynological data for Bahía Samboromb´on and may constitute an important tool to interpret Holocene fossil sediment sequences. This data could be used in future paleoenvironmental reconstructions in coastal plain deposits whose evolution are linked to relative sea-level fluctuations.
format Articulo
Articulo
author Luengo, Mariel Samanta
Vilanova, Isabel
Pisano, María Florencia
D'Amico, Gabriela Mariana
Pommarés, Nicole Nadín
Fucks, Enrique Eduardo
author_facet Luengo, Mariel Samanta
Vilanova, Isabel
Pisano, María Florencia
D'Amico, Gabriela Mariana
Pommarés, Nicole Nadín
Fucks, Enrique Eduardo
author_sort Luengo, Mariel Samanta
title Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina
title_short Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina
title_full Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina
title_fullStr Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina
title_full_unstemmed Salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the NE coastal plain of Argentina
title_sort salt marsh palynological assemblages as modern analogue tools for interpreting past vegetation zones and environmental conditions in the ne coastal plain of argentina
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/169190
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