Petrology of ultrabasic and basic xenoliths from the Kerguelen Islands. The mineralogical and thermobarometric constraints and their geodynamical implications.

• Main Author: Grégoire, Michel
• Other Authors: 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), Université de Saint Etienne, Jean-Yves Cottin, André Giret
• Format: Doctoral or Postdoctoral Thesis
• Language: French
• Published: HAL CCSD 1994
• Subjects: Kerguelen Islands; Indian Ocean; Petrology; Magmatism; UB-B xenoliths; Harzburgites; Dunites; Oceanic granulites; Sapphirine; Cumulates; Mantle-magmas interaction; underplating; Iles Kerguelen; Océan Indien; Pétrologie; Magmatisme; Enclaves UB-B; Granulites océaniques; Saphirine; Cumulats; Interactions manteau-magmas; sous-placage; [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography; [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy; [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry; Kerguelen; Indian; Îles Kerguelen
• Online Access: https://theses.hal.science/tel-01293475; https://theses.hal.science/tel-01293475/document; https://theses.hal.science/tel-01293475/file/theseMGregoire1994.pdf

The Southeast province of the Kerguelen Islands display several localities of ultrabasic-basic xenoliths (UB-B) that were entrained by highly alkaline lavas. Except Eclogitic, all known types of xenoliths from continental and oceanic areas are represented. This variety has led to a hierarchical typo...