Des impacts d'astéroïdes ont-ils pu initier des points chauds et provoquer la dislocation de la Pangée

• Main Author: Lelièvre, Gérard
• Other Authors: Galaxies, Etoiles, Physique, Instrumentation (GEPI), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
• Format: Report
• Language: French
• Published: HAL CCSD 2007
• Subjects: Hotspots; plate tectonics; Pangea; Gondwana; asteroids; CAMP; valles marineris; autres; [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]; Valles; Bathurst Inlet; North Atlantic
• Online Access: https://hal-insu.archives-ouvertes.fr/insu-00174802; https://hal-insu.archives-ouvertes.fr/insu-00174802/document; https://hal-insu.archives-ouvertes.fr/insu-00174802/file/article_FR-v31finale.pdf

Fifteen major meteorite impacts have hit the Earth between -90 My and -250 My and are reviewed. The purpose of this study is to check if they could have been involved in long-term and/or long distance geophysical effects. Using plate tectonic reconstructions, it appears that, in 11 out of these 15 c...