Evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of Chubut, Argentina

Paleomagnetic studies were carried out on sediments sampled at an archaeological excavation sited on Angostura Blanca, Piedra Parada Valley, Province of Chubut (42°30'S, 69°42'W). The archaeological traces show the occupation of the site during the late holocene; this is confirmed by the C...

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Detalles Bibliográficos
Autores principales: Nami, Hugo G., Sinito, Ana M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1993
Materias:
Geofísica
paleomagnetic studies
Holoceno
natural remanent magnetization
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/134385
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-134385
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geofísica
paleomagnetic studies
Holoceno
natural remanent magnetization
spellingShingle Geofísica
paleomagnetic studies
Holoceno
natural remanent magnetization
Nami, Hugo G.
Sinito, Ana M.
Evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of Chubut, Argentina
topic_facet Geofísica
paleomagnetic studies
Holoceno
natural remanent magnetization
description Paleomagnetic studies were carried out on sediments sampled at an archaeological excavation sited on Angostura Blanca, Piedra Parada Valley, Province of Chubut (42°30'S, 69°42'W). The archaeological traces show the occupation of the site during the late holocene; this is confirmed by the C1 dating of sanóles obtained on the site (2140+50 years). The usual laboratory techniques for paleomagnetic studies were applied to isolate the directions of the stable remanent magnetization (measurements of natural remanent magnetization, demagnetization by increasing temperatures, measurements of residual remanent magnetization after each step of demagnetization). Using the isolated directions, which represent the directions of the geomagnetic field during the deposition and consolidation of the sediments, the virtual geomagnetic poles were obtained. The analysis of the results shows evidence of a possible record of a reversed polarity event on the studied sediments. This conclusion, if it is confirmed by other paleomagnetic data, would agree with the existence of the Etrussia excursion, recorded in Russia, on sediments of about 2700 years.
format Articulo
Articulo
author Nami, Hugo G.
Sinito, Ana M.
author_facet Nami, Hugo G.
Sinito, Ana M.
author_sort Nami, Hugo G.
title Evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of Chubut, Argentina
title_short Evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of Chubut, Argentina
title_full Evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of Chubut, Argentina
title_fullStr Evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of Chubut, Argentina
title_full_unstemmed Evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of Chubut, Argentina
title_sort evidence of a possible reversion of the geomagnetic field registered during the late holocene in the province of chubut, argentina
publishDate 1993
url http://sedici.unlp.edu.ar/handle/10915/134385
work_keys_str_mv AT namihugog evidenceofapossiblereversionofthegeomagneticfieldregisteredduringthelateholoceneintheprovinceofchubutargentina
AT sinitoanam evidenceofapossiblereversionofthegeomagneticfieldregisteredduringthelateholoceneintheprovinceofchubutargentina
bdutipo_str Repositorios
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