Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study
International audience The late Cretaceous to early Paleogene is a period of major deformations of the western part of the Eurasian plateknown as the Laramide deformations. These are correlated with major paleogeographic changes - widespreadupper Cretaceous marine platforms (chalk) are uplifted, int...
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Language: | English |
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HAL CCSD
2018
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Online Access: | https://insu.hal.science/insu-01768458 |
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ftunivrennes1hal:oai:HAL:insu-01768458v1 |
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openpolar |
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Open Polar |
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Université de Rennes 1: Publications scientifiques (HAL) |
op_collection_id |
ftunivrennes1hal |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
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[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Baby, Guillaume Guillocheau, François Lasseur, Eric Bessin, Paul Briais, Justine Baptiste, Julien Paquet, Fabien Ortiz, Alexandre Robin, Cécile Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The late Cretaceous to early Paleogene is a period of major deformations of the western part of the Eurasian plateknown as the Laramide deformations. These are correlated with major paleogeographic changes - widespreadupper Cretaceous marine platforms (chalk) are uplifted, intensively eroded and announced the present-dayconfiguration of the geology of north-western Europe.These deformations occur in a complex geodynamic setting within both the context of the Africa-Eurasiaconvergence and the North Atlantic opening. Two main mechanisms are proposed: (1) surface upwelling causedby flows in the underlying mantle (Iceland Plume upwelling); (2) horizontal lithospheric deformations (Africa/Eurasia convergence).The precise ages of these deformations and the type of reliefs created (height, wavelength etc.) are still poorlyknown. Here we link onshore landforms (planation surfaces and incised valleys) located on outcrops of Proterozoicto Paleozoic basement (Armorican Massif, French Massif Central) to onshore-offshore sediment accumulationareas (Aquitanian, Paris, Western Approaches, London, Belgium, North-Sea Basins). The aim is to propose atopographic reconstitution of the reliefs and basins of western Europe - for the uppermost Cretaceous to thePaleogene period - performing restored european scale cross sections (geomorphology and geology).This study is based on two different approaches:- Erosional domain - on the mapping and chronology of all the macroforms (weathering surfaces and associatedalterites, pediments and pediplains, incised rivers) dated by intersection with the few preserved sediments,weathering and the volcanics.- Depositional domain - on a more classical dataset of seismic lines and wells, coupled with biostratigraphicrevaluations (characterization and dating of vertical movements of the basins).This work is founded and carried out in the framework of the BRGM-TOTAL project Source-to-Sink. |
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) 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) Université Paris Sciences et Lettres (PSL) |
format |
Conference Object |
author |
Baby, Guillaume Guillocheau, François Lasseur, Eric Bessin, Paul Briais, Justine Baptiste, Julien Paquet, Fabien Ortiz, Alexandre Robin, Cécile |
author_facet |
Baby, Guillaume Guillocheau, François Lasseur, Eric Bessin, Paul Briais, Justine Baptiste, Julien Paquet, Fabien Ortiz, Alexandre Robin, Cécile |
author_sort |
Baby, Guillaume |
title |
Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study |
title_short |
Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study |
title_full |
Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study |
title_fullStr |
Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study |
title_full_unstemmed |
Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study |
title_sort |
paleogene deformations of the western part of the eurasian plate, a coupled study: stratigraphic analysis - landform study |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://insu.hal.science/insu-01768458 |
op_coverage |
Vienne, Austria |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_source |
European Geosciences Union General Assembly 2018 https://insu.hal.science/insu-01768458 European Geosciences Union General Assembly 2018, Apr 2018, Vienne, Austria. Geophysical Research Abstracts, 20, pp.EGU2018-9078, 2018 |
op_relation |
insu-01768458 https://insu.hal.science/insu-01768458 |
_version_ |
1799482656773111808 |
spelling |
ftunivrennes1hal:oai:HAL:insu-01768458v1 2024-05-19T07:42:57+00:00 Paleogene deformations of the western part of the Eurasian plate, a coupled study: stratigraphic analysis - landform study Baby, Guillaume Guillocheau, François Lasseur, Eric Bessin, Paul Briais, Justine Baptiste, Julien Paquet, Fabien Ortiz, Alexandre Robin, Cécile 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) 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) Université Paris Sciences et Lettres (PSL) Vienne, Austria 2018-04-08 https://insu.hal.science/insu-01768458 en eng HAL CCSD insu-01768458 https://insu.hal.science/insu-01768458 European Geosciences Union General Assembly 2018 https://insu.hal.science/insu-01768458 European Geosciences Union General Assembly 2018, Apr 2018, Vienne, Austria. Geophysical Research Abstracts, 20, pp.EGU2018-9078, 2018 [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/conferenceObject Conference poster 2018 ftunivrennes1hal 2024-05-02T00:02:35Z International audience The late Cretaceous to early Paleogene is a period of major deformations of the western part of the Eurasian plateknown as the Laramide deformations. These are correlated with major paleogeographic changes - widespreadupper Cretaceous marine platforms (chalk) are uplifted, intensively eroded and announced the present-dayconfiguration of the geology of north-western Europe.These deformations occur in a complex geodynamic setting within both the context of the Africa-Eurasiaconvergence and the North Atlantic opening. Two main mechanisms are proposed: (1) surface upwelling causedby flows in the underlying mantle (Iceland Plume upwelling); (2) horizontal lithospheric deformations (Africa/Eurasia convergence).The precise ages of these deformations and the type of reliefs created (height, wavelength etc.) are still poorlyknown. Here we link onshore landforms (planation surfaces and incised valleys) located on outcrops of Proterozoicto Paleozoic basement (Armorican Massif, French Massif Central) to onshore-offshore sediment accumulationareas (Aquitanian, Paris, Western Approaches, London, Belgium, North-Sea Basins). The aim is to propose atopographic reconstitution of the reliefs and basins of western Europe - for the uppermost Cretaceous to thePaleogene period - performing restored european scale cross sections (geomorphology and geology).This study is based on two different approaches:- Erosional domain - on the mapping and chronology of all the macroforms (weathering surfaces and associatedalterites, pediments and pediplains, incised rivers) dated by intersection with the few preserved sediments,weathering and the volcanics.- Depositional domain - on a more classical dataset of seismic lines and wells, coupled with biostratigraphicrevaluations (characterization and dating of vertical movements of the basins).This work is founded and carried out in the framework of the BRGM-TOTAL project Source-to-Sink. Conference Object Iceland North Atlantic Université de Rennes 1: Publications scientifiques (HAL) |