Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador
International audience Heat flow measurements in 4 deep drillholes near Voisey Bay, Labrador, have yielded the lowest value ever reported in the Canadian Shield, 22 mW m -2 . This very reliable estimate is also one of the lowest continental heat flow values world wide. It requires the crust to be ve...
Published in: | Geophysical Research Letters |
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Online Access: | https://insu.hal.science/insu-03596945 https://insu.hal.science/insu-03596945v1/document https://insu.hal.science/insu-03596945v1/file/Geophysical%20Research%20Letters%20-%202000%20-%20Mareschal%20-%20Low%20mantle%20heat%20flow%20at%20the%20edge%20of%20the%20North%20American%20Continent%20Voisey.pdf https://doi.org/10.1029/1999GL011069 |
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ftsorbonneuniv:oai:HAL:insu-03596945v1 2024-10-13T14:08:49+00:00 Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador Mareschal, J. C. Poirier, A. Rolandone, F. Bienfait, G. Gariépy, C. Lapointe, R. Jaupart, C. 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) 2000 https://insu.hal.science/insu-03596945 https://insu.hal.science/insu-03596945v1/document https://insu.hal.science/insu-03596945v1/file/Geophysical%20Research%20Letters%20-%202000%20-%20Mareschal%20-%20Low%20mantle%20heat%20flow%20at%20the%20edge%20of%20the%20North%20American%20Continent%20Voisey.pdf https://doi.org/10.1029/1999GL011069 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/1999GL011069 BIBCODE: 2000GeoRL.27.823M doi:10.1029/1999GL011069 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-03596945 Geophysical Research Letters, 2000, 27, pp.823-826. ⟨10.1029/1999GL011069⟩ Tectonophysics: Dynamics of lithosphere and mantle-general Tectonophysics: Heat generation and transport [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2000 ftsorbonneuniv https://doi.org/10.1029/1999GL011069 2024-09-29T23:54:56Z International audience Heat flow measurements in 4 deep drillholes near Voisey Bay, Labrador, have yielded the lowest value ever reported in the Canadian Shield, 22 mW m -2 . This very reliable estimate is also one of the lowest continental heat flow values world wide. It requires the crust to be very poor in radioelements in this part of the Archean Nain Province. It also strongly supports the view that mantle heat flow is low (<15 mW m -2 ) throughout the Canadian Shield, with no trend of increasing mantle heat flow near the edges of the continent. It also raises questions about the controlling mechanism for rifting and the opening of the Labrador Sea at 100 Ma. Article in Journal/Newspaper Labrador Sea Nain HAL Sorbonne Université Nain ENVELOPE(-61.695,-61.695,56.542,56.542) Geophysical Research Letters 27 6 823 826 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
Tectonophysics: Dynamics of lithosphere and mantle-general Tectonophysics: Heat generation and transport [SDU]Sciences of the Universe [physics] |
spellingShingle |
Tectonophysics: Dynamics of lithosphere and mantle-general Tectonophysics: Heat generation and transport [SDU]Sciences of the Universe [physics] Mareschal, J. C. Poirier, A. Rolandone, F. Bienfait, G. Gariépy, C. Lapointe, R. Jaupart, C. Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador |
topic_facet |
Tectonophysics: Dynamics of lithosphere and mantle-general Tectonophysics: Heat generation and transport [SDU]Sciences of the Universe [physics] |
description |
International audience Heat flow measurements in 4 deep drillholes near Voisey Bay, Labrador, have yielded the lowest value ever reported in the Canadian Shield, 22 mW m -2 . This very reliable estimate is also one of the lowest continental heat flow values world wide. It requires the crust to be very poor in radioelements in this part of the Archean Nain Province. It also strongly supports the view that mantle heat flow is low (<15 mW m -2 ) throughout the Canadian Shield, with no trend of increasing mantle heat flow near the edges of the continent. It also raises questions about the controlling mechanism for rifting and the opening of the Labrador Sea at 100 Ma. |
author2 |
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) |
format |
Article in Journal/Newspaper |
author |
Mareschal, J. C. Poirier, A. Rolandone, F. Bienfait, G. Gariépy, C. Lapointe, R. Jaupart, C. |
author_facet |
Mareschal, J. C. Poirier, A. Rolandone, F. Bienfait, G. Gariépy, C. Lapointe, R. Jaupart, C. |
author_sort |
Mareschal, J. C. |
title |
Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador |
title_short |
Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador |
title_full |
Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador |
title_fullStr |
Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador |
title_full_unstemmed |
Low mantle heat flow at the edge of the North American Continent, Voisey Bay, Labrador |
title_sort |
low mantle heat flow at the edge of the north american continent, voisey bay, labrador |
publisher |
HAL CCSD |
publishDate |
2000 |
url |
https://insu.hal.science/insu-03596945 https://insu.hal.science/insu-03596945v1/document https://insu.hal.science/insu-03596945v1/file/Geophysical%20Research%20Letters%20-%202000%20-%20Mareschal%20-%20Low%20mantle%20heat%20flow%20at%20the%20edge%20of%20the%20North%20American%20Continent%20Voisey.pdf https://doi.org/10.1029/1999GL011069 |
long_lat |
ENVELOPE(-61.695,-61.695,56.542,56.542) |
geographic |
Nain |
geographic_facet |
Nain |
genre |
Labrador Sea Nain |
genre_facet |
Labrador Sea Nain |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-03596945 Geophysical Research Letters, 2000, 27, pp.823-826. ⟨10.1029/1999GL011069⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/1999GL011069 BIBCODE: 2000GeoRL.27.823M doi:10.1029/1999GL011069 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/1999GL011069 |
container_title |
Geophysical Research Letters |
container_volume |
27 |
container_issue |
6 |
container_start_page |
823 |
op_container_end_page |
826 |
_version_ |
1812815582452514816 |