Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration

The Middle Holocene is a particular time period in which there are uneven environmental dynamics all along the southern portion of the continent. Whereas in the Puna, extreme aridity and high temperatures (the so-called " Hypsithermal" period) have been recorded, a more humid and rainy pha...

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Detalles Bibliográficos
Autor principal: Maidana, Nora Irene
Publicado: 2012
Materias:
archaeological evidence
aridity
diatom
exploration
high temperature
Holocene
paleoenvironment
peat
swamp
water level
Argentina
Puna
Staten Island [Tierra del Fuego]
Tierra del Fuego [(PRV) Argentina]
Aulacoseira
Bacillariophyta
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10406182_v256_n_p78_Fernandez
http://hdl.handle.net/20.500.12110/paper_10406182_v256_n_p78_Fernandez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10406182_v256_n_p78_Fernandez
record_format dspace
spelling paper:paper_10406182_v256_n_p78_Fernandez2023-06-08T16:00:49Z Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration Maidana, Nora Irene archaeological evidence aridity diatom exploration high temperature Holocene paleoenvironment peat swamp water level Argentina Puna Staten Island [Tierra del Fuego] Tierra del Fuego [(PRV) Argentina] Aulacoseira Bacillariophyta The Middle Holocene is a particular time period in which there are uneven environmental dynamics all along the southern portion of the continent. Whereas in the Puna, extreme aridity and high temperatures (the so-called " Hypsithermal" period) have been recorded, a more humid and rainy phase dominated southern Tierra del Fuego. The present paper explores the palaeoenvironmental situation of Isla de los Estados (Staaten Island, 54°38'-54°55' S; 63°48'-64°46' W) and its relationship with the archaeological record left behind by ancient canoeing people. The considered period is characterized by exceptionally windy conditions. The palaeoenvironmental information could be used as an explanation for the absence of cultural remains and also for the scarce archaeological record for Península Mitre. At the beginning of the Middle Holocene, the diatom record shows a large amount of . Aulacoseira sp that could indicate either windy conditions or higher water levels at the site core. The more distinctive changes in the diatom assemblages occurred at ca. 5000 cal B.P., suggesting a shallower water level and more acidic conditions. By 3000 cal B.P., the diatom species are strongly linked to peat and swampy environments. However, during the late Holocene, milder conditions might have favored seasonal travelling to the outer islands of the Fuegian Archipelago, though no definitive or permanent settlements have been found. © 2011 Elsevier Ltd and INQUA. Fil:Maidana, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10406182_v256_n_p78_Fernandez http://hdl.handle.net/20.500.12110/paper_10406182_v256_n_p78_Fernandez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic archaeological evidence
aridity
diatom
exploration
high temperature
Holocene
paleoenvironment
peat
swamp
water level
Argentina
Puna
Staten Island [Tierra del Fuego]
Tierra del Fuego [(PRV) Argentina]
Aulacoseira
Bacillariophyta
spellingShingle archaeological evidence
aridity
diatom
exploration
high temperature
Holocene
paleoenvironment
peat
swamp
water level
Argentina
Puna
Staten Island [Tierra del Fuego]
Tierra del Fuego [(PRV) Argentina]
Aulacoseira
Bacillariophyta
Maidana, Nora Irene
Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration
topic_facet archaeological evidence
aridity
diatom
exploration
high temperature
Holocene
paleoenvironment
peat
swamp
water level
Argentina
Puna
Staten Island [Tierra del Fuego]
Tierra del Fuego [(PRV) Argentina]
Aulacoseira
Bacillariophyta
description The Middle Holocene is a particular time period in which there are uneven environmental dynamics all along the southern portion of the continent. Whereas in the Puna, extreme aridity and high temperatures (the so-called " Hypsithermal" period) have been recorded, a more humid and rainy phase dominated southern Tierra del Fuego. The present paper explores the palaeoenvironmental situation of Isla de los Estados (Staaten Island, 54°38'-54°55' S; 63°48'-64°46' W) and its relationship with the archaeological record left behind by ancient canoeing people. The considered period is characterized by exceptionally windy conditions. The palaeoenvironmental information could be used as an explanation for the absence of cultural remains and also for the scarce archaeological record for Península Mitre. At the beginning of the Middle Holocene, the diatom record shows a large amount of . Aulacoseira sp that could indicate either windy conditions or higher water levels at the site core. The more distinctive changes in the diatom assemblages occurred at ca. 5000 cal B.P., suggesting a shallower water level and more acidic conditions. By 3000 cal B.P., the diatom species are strongly linked to peat and swampy environments. However, during the late Holocene, milder conditions might have favored seasonal travelling to the outer islands of the Fuegian Archipelago, though no definitive or permanent settlements have been found. © 2011 Elsevier Ltd and INQUA.
author Maidana, Nora Irene
author_facet Maidana, Nora Irene
author_sort Maidana, Nora Irene
title Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration
title_short Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration
title_full Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration
title_fullStr Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration
title_full_unstemmed Palaeoenvironmental conditions during the Middle Holocene at Isla de los Estados (Staaten Island, Tierra del Fuego, 54° S, Argentina) and their influence on the possibilities for human exploration
title_sort palaeoenvironmental conditions during the middle holocene at isla de los estados (staaten island, tierra del fuego, 54° s, argentina) and their influence on the possibilities for human exploration
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10406182_v256_n_p78_Fernandez
http://hdl.handle.net/20.500.12110/paper_10406182_v256_n_p78_Fernandez
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