Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments

Recent archaeomagnetic studies carried out on Mid-to Late Holocene burnt anthropogenic cave sediments have shown that under certain conditions, these materials are suitable geomagnetic field recorders. Archaeomagnetic analyses carried out on these contexts constitute a rich source of information not...

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Autores: Carrancho Alonso, Ángel, Herrejón Lagunilla, Ángela, Vergés, Josep Maria .
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Universidad de Burgos (UBU)
Repositorio:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/4594
Acceso en línea:http://hdl.handle.net/10259/4594
Access Level:acceso abierto
Palabra clave:Fumiers
Holocene
Thermoremanent magnetization
Secular variation
Ashes
Bronze Age
Physics
Paleontology
Física
Paleontología
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spelling Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sedimentsCarrancho Alonso, ÁngelHerrejón Lagunilla, ÁngelaVergés, Josep Maria .FumiersHoloceneThermoremanent magnetizationSecular variationAshesBronze AgePhysicsPaleontologyFísicaPaleontologíaRecent archaeomagnetic studies carried out on Mid-to Late Holocene burnt anthropogenic cave sediments have shown that under certain conditions, these materials are suitable geomagnetic field recorders. Archaeomagnetic analyses carried out on these contexts constitute a rich source of information not only for geophysical purposes -in terms of reconstructing the variation of Earth's magnetic field in the past- but also from the archaeological point of view, for example by archaeomagnetic dating. Here, we report three different archaeomagnetic applications to the study of burnt cave sediments: (i) archaeomagnetic dating; (ii) determining palaeotemperatures and (iii) assessing post-depositional processes. The first case study is a dating attempt carried out on a Late Holocene (Bronze Age) burnt level from El Mirador Cave (Burgos, Spain). Using the directional European secular variation curve, several dating intervals were obtained for the last burning of this combustion feature. Considering the archaeological evidence and the independent radiometric (14C) dating available the possible ages obtained are discussed. This is the first archaeomagnetic dating obtained in these contexts so far. The second case study is an application of the method to determine the last heating temperatures reached by the carbonaceous facies of these fires. Stepwise thermal demagnetization of oriented samples can be used to quantitatively estimate heating temperatures. An intermediate normal polarity component interpreted as a partial thermo-remanence (pTRM) with maximum unblocking temperatures of 400 e450 C was systematically identified, revealing the last heating temperatures experienced by this facies. These temperatures were confirmed with partial thermomagnetic curve experiments. Finally, archaeomagnetic analyses on a partially bioturbated burning event were performed in order to evaluate until what spatial extent the burnt sediments were affected by post-depositional mechanical alteration processes. For each case study, the archaeological implications are discussed highlighting the potential of archaeomagnetic methods to retrieve archaeological information.MINECO projects CGL2012-32149 and CGL2012- 38481Elsevier201720182016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10259/4594reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)instname:Universidad de Burgos (UBU)InglésQuaternary International. 2016, V. 414, p. 244-257https://doi.org/10.1016/j.quaint.2015.10.010Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riubu.ubu.es:10259/45942026-05-28T07:56:11Z
dc.title.none.fl_str_mv Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
title Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
spellingShingle Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
Carrancho Alonso, Ángel
Fumiers
Holocene
Thermoremanent magnetization
Secular variation
Ashes
Bronze Age
Physics
Paleontology
Física
Paleontología
title_short Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
title_full Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
title_fullStr Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
title_full_unstemmed Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
title_sort Three archaeomagnetic applications of archaeological interest to the study of burnt anthropogenic cave sediments
dc.creator.none.fl_str_mv Carrancho Alonso, Ángel
Herrejón Lagunilla, Ángela
Vergés, Josep Maria .
author Carrancho Alonso, Ángel
author_facet Carrancho Alonso, Ángel
Herrejón Lagunilla, Ángela
Vergés, Josep Maria .
author_role author
author2 Herrejón Lagunilla, Ángela
Vergés, Josep Maria .
author2_role author
author
dc.subject.none.fl_str_mv Fumiers
Holocene
Thermoremanent magnetization
Secular variation
Ashes
Bronze Age
Physics
Paleontology
Física
Paleontología
topic Fumiers
Holocene
Thermoremanent magnetization
Secular variation
Ashes
Bronze Age
Physics
Paleontology
Física
Paleontología
description Recent archaeomagnetic studies carried out on Mid-to Late Holocene burnt anthropogenic cave sediments have shown that under certain conditions, these materials are suitable geomagnetic field recorders. Archaeomagnetic analyses carried out on these contexts constitute a rich source of information not only for geophysical purposes -in terms of reconstructing the variation of Earth's magnetic field in the past- but also from the archaeological point of view, for example by archaeomagnetic dating. Here, we report three different archaeomagnetic applications to the study of burnt cave sediments: (i) archaeomagnetic dating; (ii) determining palaeotemperatures and (iii) assessing post-depositional processes. The first case study is a dating attempt carried out on a Late Holocene (Bronze Age) burnt level from El Mirador Cave (Burgos, Spain). Using the directional European secular variation curve, several dating intervals were obtained for the last burning of this combustion feature. Considering the archaeological evidence and the independent radiometric (14C) dating available the possible ages obtained are discussed. This is the first archaeomagnetic dating obtained in these contexts so far. The second case study is an application of the method to determine the last heating temperatures reached by the carbonaceous facies of these fires. Stepwise thermal demagnetization of oriented samples can be used to quantitatively estimate heating temperatures. An intermediate normal polarity component interpreted as a partial thermo-remanence (pTRM) with maximum unblocking temperatures of 400 e450 C was systematically identified, revealing the last heating temperatures experienced by this facies. These temperatures were confirmed with partial thermomagnetic curve experiments. Finally, archaeomagnetic analyses on a partially bioturbated burning event were performed in order to evaluate until what spatial extent the burnt sediments were affected by post-depositional mechanical alteration processes. For each case study, the archaeological implications are discussed highlighting the potential of archaeomagnetic methods to retrieve archaeological information.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10259/4594
url http://hdl.handle.net/10259/4594
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Quaternary International. 2016, V. 414, p. 244-257
https://doi.org/10.1016/j.quaint.2015.10.010
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)
instname:Universidad de Burgos (UBU)
instname_str Universidad de Burgos (UBU)
reponame_str Repositorio Institucional de la Universidad de Burgos (RIUBU)
collection Repositorio Institucional de la Universidad de Burgos (RIUBU)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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