New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation
International audience Reconstructing the secular variation of Europe’s geomagnetic field over the past millennium is challenging because of the lack of recently acquired archeomagnetic data from Western Russia. In this paper, we report on nine new archeointensity values obtained from groups of bric...
Published in: | Physics of the Earth and Planetary Interiors |
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Main Authors: | , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2017
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Online Access: | https://hal.sorbonne-universite.fr/hal-01529266 https://hal.sorbonne-universite.fr/hal-01529266/document https://hal.sorbonne-universite.fr/hal-01529266/file/Salnaia_New_archeointensity.pdf https://doi.org/10.1016/j.pepi.2017.05.012 |
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Open Polar |
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HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
Secular variation Geomagnetic field intensity Past millennium North-Western Russia Europe Geomagnetic field modeling [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
Secular variation Geomagnetic field intensity Past millennium North-Western Russia Europe Geomagnetic field modeling [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Salnaia, Natalia Gallet, Yves Genevey, Agnès Antipov, Ilya New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation |
topic_facet |
Secular variation Geomagnetic field intensity Past millennium North-Western Russia Europe Geomagnetic field modeling [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience Reconstructing the secular variation of Europe’s geomagnetic field over the past millennium is challenging because of the lack of recently acquired archeomagnetic data from Western Russia. In this paper, we report on nine new archeointensity values obtained from groups of brick fragments sampled in Novgorod (North-Western Russia) and its vicinities. These fragments were collected from churches whose precise ages range from the beginning of the 12th century to the end of the 17th century AD. All the archeointensity measurements were carried out using the Triaxe experimental protocol, which takes into account the thermoremanent magnetization (TRM) anisotropy effect. Intensity determinations were performed using fast and slow cooling rates for laboratory-TRM acquisition. The results confirm that the Triaxe protocol overcomes the TRM cooling rate dependence. The new data shows that geomagnetic field intensities in North-Western Russia have decreased in the past millennium. Comparisons were made with other data previously obtained in Western Europe, the Balkans and Russia, as well as with intensity values expected in Novgorod from global geomagnetic field models. These comparisons yielded three main results: 1) The new archeointensity data do not show the occurrence of large intensity variations in North-Western Russia, as those observed in the Balkan dataset. Conversely, they appear more compatible with Western European results, which suggests a limited non-dipole field effect across Europe during the past millennium; 2) Our data are weaker than the intensity values expected in Novgorod from the available global geomagnetic field models. This suggests that the field models are inaccurate for the Novgorod area; 3) A constant linear decrease of the geocentric axial dipole moment since 1600 AD does not appear compatible with our younger data. |
author2 |
Institute of Physics of the Earth Moscou Russian Academy of Sciences Moscow (RAS) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Archéologie Moléculaire et Structurale (LAMS) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) St Petersburg State University (SPbU) |
format |
Article in Journal/Newspaper |
author |
Salnaia, Natalia Gallet, Yves Genevey, Agnès Antipov, Ilya |
author_facet |
Salnaia, Natalia Gallet, Yves Genevey, Agnès Antipov, Ilya |
author_sort |
Salnaia, Natalia |
title |
New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation |
title_short |
New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation |
title_full |
New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation |
title_fullStr |
New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation |
title_full_unstemmed |
New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation |
title_sort |
new archeointensity data from novgorod (north-western russia) between c. 1100 and 1700 ad. implications for the european intensity secular variation |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.sorbonne-universite.fr/hal-01529266 https://hal.sorbonne-universite.fr/hal-01529266/document https://hal.sorbonne-universite.fr/hal-01529266/file/Salnaia_New_archeointensity.pdf https://doi.org/10.1016/j.pepi.2017.05.012 |
genre |
North-Western Russia |
genre_facet |
North-Western Russia |
op_source |
ISSN: 0031-9201 EISSN: 0031-9201 Physics of the Earth and Planetary Interiors https://hal.sorbonne-universite.fr/hal-01529266 Physics of the Earth and Planetary Interiors, 2017, 269, pp.18 - 28. ⟨10.1016/j.pepi.2017.05.012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pepi.2017.05.012 hal-01529266 https://hal.sorbonne-universite.fr/hal-01529266 https://hal.sorbonne-universite.fr/hal-01529266/document https://hal.sorbonne-universite.fr/hal-01529266/file/Salnaia_New_archeointensity.pdf doi:10.1016/j.pepi.2017.05.012 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.pepi.2017.05.012 |
container_title |
Physics of the Earth and Planetary Interiors |
container_volume |
269 |
container_start_page |
18 |
op_container_end_page |
28 |
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1798851749179555840 |
spelling |
ftsorbonneuniv:oai:HAL:hal-01529266v1 2024-05-12T08:08:39+00:00 New archeointensity data from Novgorod (North-Western Russia) between c. 1100 and 1700 AD. Implications for the European intensity secular variation Salnaia, Natalia Gallet, Yves Genevey, Agnès Antipov, Ilya Institute of Physics of the Earth Moscou Russian Academy of Sciences Moscow (RAS) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Archéologie Moléculaire et Structurale (LAMS) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) St Petersburg State University (SPbU) 2017 https://hal.sorbonne-universite.fr/hal-01529266 https://hal.sorbonne-universite.fr/hal-01529266/document https://hal.sorbonne-universite.fr/hal-01529266/file/Salnaia_New_archeointensity.pdf https://doi.org/10.1016/j.pepi.2017.05.012 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pepi.2017.05.012 hal-01529266 https://hal.sorbonne-universite.fr/hal-01529266 https://hal.sorbonne-universite.fr/hal-01529266/document https://hal.sorbonne-universite.fr/hal-01529266/file/Salnaia_New_archeointensity.pdf doi:10.1016/j.pepi.2017.05.012 info:eu-repo/semantics/OpenAccess ISSN: 0031-9201 EISSN: 0031-9201 Physics of the Earth and Planetary Interiors https://hal.sorbonne-universite.fr/hal-01529266 Physics of the Earth and Planetary Interiors, 2017, 269, pp.18 - 28. ⟨10.1016/j.pepi.2017.05.012⟩ Secular variation Geomagnetic field intensity Past millennium North-Western Russia Europe Geomagnetic field modeling [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2017 ftsorbonneuniv https://doi.org/10.1016/j.pepi.2017.05.012 2024-04-18T03:49:49Z International audience Reconstructing the secular variation of Europe’s geomagnetic field over the past millennium is challenging because of the lack of recently acquired archeomagnetic data from Western Russia. In this paper, we report on nine new archeointensity values obtained from groups of brick fragments sampled in Novgorod (North-Western Russia) and its vicinities. These fragments were collected from churches whose precise ages range from the beginning of the 12th century to the end of the 17th century AD. All the archeointensity measurements were carried out using the Triaxe experimental protocol, which takes into account the thermoremanent magnetization (TRM) anisotropy effect. Intensity determinations were performed using fast and slow cooling rates for laboratory-TRM acquisition. The results confirm that the Triaxe protocol overcomes the TRM cooling rate dependence. The new data shows that geomagnetic field intensities in North-Western Russia have decreased in the past millennium. Comparisons were made with other data previously obtained in Western Europe, the Balkans and Russia, as well as with intensity values expected in Novgorod from global geomagnetic field models. These comparisons yielded three main results: 1) The new archeointensity data do not show the occurrence of large intensity variations in North-Western Russia, as those observed in the Balkan dataset. Conversely, they appear more compatible with Western European results, which suggests a limited non-dipole field effect across Europe during the past millennium; 2) Our data are weaker than the intensity values expected in Novgorod from the available global geomagnetic field models. This suggests that the field models are inaccurate for the Novgorod area; 3) A constant linear decrease of the geocentric axial dipole moment since 1600 AD does not appear compatible with our younger data. Article in Journal/Newspaper North-Western Russia HAL Sorbonne Université Physics of the Earth and Planetary Interiors 269 18 28 |