Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering
International audience A palaeomagnetic study was carried out on the Borne de Fer ferricrete in north-eastern France, close to the Luxembourg border. This ferricrete is overlain by kaolinitic red clay and caps a silto-argilaceous saprolite 15 to 40 m thick showing weathering features, evolution of t...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal-brgm.archives-ouvertes.fr/hal-00739079 https://doi.org/10.1016/j.palaeo.2007.01.010 |
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ftccsdartic:oai:HAL:hal-00739079v1 2023-05-15T16:19:39+02:00 Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering Théveniaut, Hervé Quesnel, Florence Wyns, Robert Hugues, Gérard Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) Direction des GéoRessources, Unité Géologie de l'Aménagement des Territoires Projet de recherche ANDRA-BRGM Sedimor et Programme de la Carte géologique de France 2007 https://hal-brgm.archives-ouvertes.fr/hal-00739079 https://doi.org/10.1016/j.palaeo.2007.01.010 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2007.01.010 hal-00739079 https://hal-brgm.archives-ouvertes.fr/hal-00739079 doi:10.1016/j.palaeo.2007.01.010 ISSN: 0031-0182 Palaeogeography, Palaeoclimatology, Palaeoecology https://hal-brgm.archives-ouvertes.fr/hal-00739079 Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2007, 253 (3-4), pp.271-279. ⟨10.1016/j.palaeo.2007.01.010⟩ Palaeomagnetism Ferricrete France Palaeosurface Palaeoweathering Geomorphology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftccsdartic https://doi.org/10.1016/j.palaeo.2007.01.010 2021-10-17T01:45:39Z International audience A palaeomagnetic study was carried out on the Borne de Fer ferricrete in north-eastern France, close to the Luxembourg border. This ferricrete is overlain by kaolinitic red clay and caps a silto-argilaceous saprolite 15 to 40 m thick showing weathering features, evolution of the clay minerals from the base to the top and karstic solution pipes beneath. This weathering profile lies above Jurassic marl and limestone from around 425 to 450 m a.s.l. and may correspond to a scarce remnant of an old weathering palaeosurface. Palaeomagnetic, rockmagnetic and petrographic analyses reveal presence of a dominant hydroxide contribution with a magnetic remanence carried by goethite. A small contribution of maghemite or hematite carries a more scattered but similar direction. The virtual geomagnetic pole derived from the goethite component lies at lat 73.4°N, lon. 205.9°E, dp 4.3, dm 6.2. This location close to the 120-140 Ma reference poles and presence of normal and reversed polarities are consistent with a Lower Cretaceous age close to the Long Normal Cretaceous Superchron. Our results are consistent with the ones obtained recently in Germany, Belgium and France and prepare the ground for reconstructing the Lower Cretaceous continental palaeosurface geometry and palaeogeography. Article in Journal/Newspaper Geomagnetic Pole Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Palaeogeography, Palaeoclimatology, Palaeoecology 253 3-4 271 279 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Palaeomagnetism Ferricrete France Palaeosurface Palaeoweathering Geomorphology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
Palaeomagnetism Ferricrete France Palaeosurface Palaeoweathering Geomorphology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Théveniaut, Hervé Quesnel, Florence Wyns, Robert Hugues, Gérard Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering |
topic_facet |
Palaeomagnetism Ferricrete France Palaeosurface Palaeoweathering Geomorphology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience A palaeomagnetic study was carried out on the Borne de Fer ferricrete in north-eastern France, close to the Luxembourg border. This ferricrete is overlain by kaolinitic red clay and caps a silto-argilaceous saprolite 15 to 40 m thick showing weathering features, evolution of the clay minerals from the base to the top and karstic solution pipes beneath. This weathering profile lies above Jurassic marl and limestone from around 425 to 450 m a.s.l. and may correspond to a scarce remnant of an old weathering palaeosurface. Palaeomagnetic, rockmagnetic and petrographic analyses reveal presence of a dominant hydroxide contribution with a magnetic remanence carried by goethite. A small contribution of maghemite or hematite carries a more scattered but similar direction. The virtual geomagnetic pole derived from the goethite component lies at lat 73.4°N, lon. 205.9°E, dp 4.3, dm 6.2. This location close to the 120-140 Ma reference poles and presence of normal and reversed polarities are consistent with a Lower Cretaceous age close to the Long Normal Cretaceous Superchron. Our results are consistent with the ones obtained recently in Germany, Belgium and France and prepare the ground for reconstructing the Lower Cretaceous continental palaeosurface geometry and palaeogeography. |
author2 |
Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) Direction des GéoRessources, Unité Géologie de l'Aménagement des Territoires Projet de recherche ANDRA-BRGM Sedimor et Programme de la Carte géologique de France |
format |
Article in Journal/Newspaper |
author |
Théveniaut, Hervé Quesnel, Florence Wyns, Robert Hugues, Gérard |
author_facet |
Théveniaut, Hervé Quesnel, Florence Wyns, Robert Hugues, Gérard |
author_sort |
Théveniaut, Hervé |
title |
Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering |
title_short |
Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering |
title_full |
Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering |
title_fullStr |
Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering |
title_full_unstemmed |
Palaeomagnetic dating of the "Borne de Fer" ferricrete (NE France): Lower Cretaceous continental weathering |
title_sort |
palaeomagnetic dating of the "borne de fer" ferricrete (ne france): lower cretaceous continental weathering |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal-brgm.archives-ouvertes.fr/hal-00739079 https://doi.org/10.1016/j.palaeo.2007.01.010 |
genre |
Geomagnetic Pole |
genre_facet |
Geomagnetic Pole |
op_source |
ISSN: 0031-0182 Palaeogeography, Palaeoclimatology, Palaeoecology https://hal-brgm.archives-ouvertes.fr/hal-00739079 Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2007, 253 (3-4), pp.271-279. ⟨10.1016/j.palaeo.2007.01.010⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2007.01.010 hal-00739079 https://hal-brgm.archives-ouvertes.fr/hal-00739079 doi:10.1016/j.palaeo.2007.01.010 |
op_doi |
https://doi.org/10.1016/j.palaeo.2007.01.010 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
253 |
container_issue |
3-4 |
container_start_page |
271 |
op_container_end_page |
279 |
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