Back to the bases: Building a terrestrial water δ18O baseline for archaeological studies in North Patagonia (Argentina)

Archaeology has been using stable oxygen as an isotopic tracer linked with water consumption for decades, and it has been demonstrated to be a powerful tool to assess paleomobility in bioarchaeology. Central-eastern North Patagonia (Argentina) is an especially appropriate region to apply it since it...

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Autores principales: Serna, Alejandro, Prates, Luciano Raúl, Valenzuela, Luciano O., Salazar García, Domingo C.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Ciencias Naturales
Oxygen isotopes
Isotopic baseline
Paleomobility
Archaeology
Patagonia
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128301
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128301
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Oxygen isotopes
Isotopic baseline
Paleomobility
Archaeology
Patagonia
spellingShingle Ciencias Naturales
Oxygen isotopes
Isotopic baseline
Paleomobility
Archaeology
Patagonia
Serna, Alejandro
Prates, Luciano Raúl
Valenzuela, Luciano O.
Salazar García, Domingo C.
Back to the bases: Building a terrestrial water δ18O baseline for archaeological studies in North Patagonia (Argentina)
topic_facet Ciencias Naturales
Oxygen isotopes
Isotopic baseline
Paleomobility
Archaeology
Patagonia
description Archaeology has been using stable oxygen as an isotopic tracer linked with water consumption for decades, and it has been demonstrated to be a powerful tool to assess paleomobility in bioarchaeology. Central-eastern North Patagonia (Argentina) is an especially appropriate region to apply it since it presents a high density of huntergatherer burials, it was a nodal zone criss-crossed by an extensive network of important routes, and it is characterized by a high environmental fragmentation due to the scarcity of fresh water sources. The aim of this paper is to build an empirical stable oxygen isotope baseline of terrestrial surface waters to assess the potentiality of tracing past human movement. We analyzed 46 water samples from 13 locations with permanent sources (rivers, springs, streams), compared it with predictions of precipitation and evaluated it considering seasonal variation, altitude and distance from the coast. Our results show that different post-precipitation processes change the isotopic signal from the sources with respect to the local precipitation, and highlight the relevance of analyzing terrestrial water sources. According to their oxygen isotope values we defined five hydrologic zones: Colorado River, Negro River, Closed Basins and Plains, Eastern and Western Somuncurá Foothills. Their identification shows the potential to address past human movement using stable oxygen water baselines in central-eastern North Patagonia.
format Articulo
Articulo
author Serna, Alejandro
Prates, Luciano Raúl
Valenzuela, Luciano O.
Salazar García, Domingo C.
author_facet Serna, Alejandro
Prates, Luciano Raúl
Valenzuela, Luciano O.
Salazar García, Domingo C.
author_sort Serna, Alejandro
title Back to the bases: Building a terrestrial water δ18O baseline for archaeological studies in North Patagonia (Argentina)
title_short Back to the bases: Building a terrestrial water δ18O baseline for archaeological studies in North Patagonia (Argentina)
title_full Back to the bases: Building a terrestrial water δ18O baseline for archaeological studies in North Patagonia (Argentina)
title_fullStr Back to the bases: Building a terrestrial water δ18O baseline for archaeological studies in North Patagonia (Argentina)
title_full_unstemmed Back to the bases: Building a terrestrial water δ18O baseline for archaeological studies in North Patagonia (Argentina)
title_sort back to the bases: building a terrestrial water δ18o baseline for archaeological studies in north patagonia (argentina)
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/128301
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