Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate
International audience The Late Cretaceous to early Palaeogene is a period of major deformations of the western part of the Eurasian plate within both the context of the Africa-Eurasia convergence and the North Atlantic opening. Two mechanisms are proposed: (1) surface upwelling caused by flows in t...
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Format: | Conference Object |
Language: | English |
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HAL CCSD
2018
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Online Access: | https://insu.hal.science/insu-01915827 |
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ftinsu:oai:HAL:insu-01915827v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
géomorphologie stratigraphie de bassin déformations laramides bassin de Paris bassin Aquitain Massif central [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
géomorphologie stratigraphie de bassin déformations laramides bassin de Paris bassin Aquitain Massif central [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Baby, Guillaume Guillocheau, François Briais, Justine Lasseur, Eric Bessin, Paul Robin, Cécile Brusset, Stéphane Baby, Patrice Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate |
topic_facet |
géomorphologie stratigraphie de bassin déformations laramides bassin de Paris bassin Aquitain Massif central [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience The Late Cretaceous to early Palaeogene is a period of major deformations of the western part of the Eurasian plate within both the context of the Africa-Eurasia convergence and the North Atlantic opening. Two mechanisms are proposed: (1) surface upwelling caused by flows in the underlying mantle (Iceland Plume upwelling) and/or (2) horizontal lithospheric deformations (Africa, Iberia, Eurasia convergence). Here we discuss the timing, spatial distribution, types and magnitude of these deformations. Two approaches are used:(1) Geomorphology - on the mapping and chronology of all the macroforms (planation surfaces, incised rivers) dated by intersection with the preserved sediments, weathering and volcanics;(2) Basin stratigraphy and structural analysis - on a more classical dataset of seismic lines, wells and field observations, coupled with biostratigraphic re-evaluations.We provide an european-scale cross section that has been restored from the early Turonian to the Oligocene, through the North Pyrenean Zone, Eastern Aquitaine Basin, French Massif Central and Paris-Brussels Basins. We combine two methods to quantify the magnitude of the deformations: (1) depositional domain - 2D accommodation space measurements; (2) erosional domain - difference between the present-day elevation of ancient sea-level markers (marine sediments scattered upon it) and a global sea-level curve.The first outcomes of our study are:- The Late Cretaceous is a period of enhanced subsidence. All the studied area is covered by marine chalk deposits.- A major period of deformation occurs at the Cretaceous-Tertiary boundary possibly sub- divided into two sub-periods: intra-Maastrichtian - pre-middle-Danian and Upper Danian - pre-Thanetian.- Long wavelength (x 100 km) and moderate amplitude uplift (x 100 m) coupled with intense erosion affects the northern border of the French Massif Central and the Paris and Brussels Basins. A major change in the sedimentary system occurs from open marine chalks to siliciclastic shore ... |
author2 |
Géosciences Rennes (GR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS) Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Planétologie et Géodynamique - Géosciences Le Mans (LPG - Le Mans) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Baby, Guillaume Guillocheau, François Briais, Justine Lasseur, Eric Bessin, Paul Robin, Cécile Brusset, Stéphane Baby, Patrice |
author_facet |
Baby, Guillaume Guillocheau, François Briais, Justine Lasseur, Eric Bessin, Paul Robin, Cécile Brusset, Stéphane Baby, Patrice |
author_sort |
Baby, Guillaume |
title |
Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate |
title_short |
Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate |
title_full |
Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate |
title_fullStr |
Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate |
title_full_unstemmed |
Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate |
title_sort |
late cretaceous to early paleogene deformations in the western part of the eurasian plate |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://insu.hal.science/insu-01915827 |
op_coverage |
Lille, France |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_source |
26ème Réunion des Sciences de la terre - RST https://insu.hal.science/insu-01915827 26ème Réunion des Sciences de la terre - RST, Oct 2018, Lille, France. pp.36 https://rst2018-lille.sciencesconf.org/ |
op_relation |
insu-01915827 https://insu.hal.science/insu-01915827 |
_version_ |
1790602194287853568 |
spelling |
ftinsu:oai:HAL:insu-01915827v1 2024-02-11T10:05:16+01:00 Late Cretaceous to early Paleogene deformations in the western part of the Eurasian plate Baby, Guillaume Guillocheau, François Briais, Justine Lasseur, Eric Bessin, Paul Robin, Cécile Brusset, Stéphane Baby, Patrice Géosciences Rennes (GR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS) Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Planétologie et Géodynamique - Géosciences Le Mans (LPG - Le Mans) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Lille, France 2018-10-22 https://insu.hal.science/insu-01915827 en eng HAL CCSD insu-01915827 https://insu.hal.science/insu-01915827 26ème Réunion des Sciences de la terre - RST https://insu.hal.science/insu-01915827 26ème Réunion des Sciences de la terre - RST, Oct 2018, Lille, France. pp.36 https://rst2018-lille.sciencesconf.org/ géomorphologie stratigraphie de bassin déformations laramides bassin de Paris bassin Aquitain Massif central [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/conferenceObject Conference papers 2018 ftinsu 2024-01-24T17:36:49Z International audience The Late Cretaceous to early Palaeogene is a period of major deformations of the western part of the Eurasian plate within both the context of the Africa-Eurasia convergence and the North Atlantic opening. Two mechanisms are proposed: (1) surface upwelling caused by flows in the underlying mantle (Iceland Plume upwelling) and/or (2) horizontal lithospheric deformations (Africa, Iberia, Eurasia convergence). Here we discuss the timing, spatial distribution, types and magnitude of these deformations. Two approaches are used:(1) Geomorphology - on the mapping and chronology of all the macroforms (planation surfaces, incised rivers) dated by intersection with the preserved sediments, weathering and volcanics;(2) Basin stratigraphy and structural analysis - on a more classical dataset of seismic lines, wells and field observations, coupled with biostratigraphic re-evaluations.We provide an european-scale cross section that has been restored from the early Turonian to the Oligocene, through the North Pyrenean Zone, Eastern Aquitaine Basin, French Massif Central and Paris-Brussels Basins. We combine two methods to quantify the magnitude of the deformations: (1) depositional domain - 2D accommodation space measurements; (2) erosional domain - difference between the present-day elevation of ancient sea-level markers (marine sediments scattered upon it) and a global sea-level curve.The first outcomes of our study are:- The Late Cretaceous is a period of enhanced subsidence. All the studied area is covered by marine chalk deposits.- A major period of deformation occurs at the Cretaceous-Tertiary boundary possibly sub- divided into two sub-periods: intra-Maastrichtian - pre-middle-Danian and Upper Danian - pre-Thanetian.- Long wavelength (x 100 km) and moderate amplitude uplift (x 100 m) coupled with intense erosion affects the northern border of the French Massif Central and the Paris and Brussels Basins. A major change in the sedimentary system occurs from open marine chalks to siliciclastic shore ... Conference Object Iceland North Atlantic Institut national des sciences de l'Univers: HAL-INSU |