Les concentrations à sillimanite du Sud Velay et l'èvolution P-T-t fini-hercynienne dans le Massif central (France)  [Sillimanite concentrations in the southern Velay and late Hercynian P-T-t evolution in the French Central Massif]

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doi: 10.1016/j.crte.2005.04.006
Alternate Title:Sillimanite concentrations in the southern Velay and late Hercynian P-T-t evolution in the French Central Massif
Authors:Barbey, Pierre; Macaudière, Jean; Marignac, Christian; Jabbori, Jamila
Author Affiliations:Primary:
CNRS, CRPG, Nancy, France
Volume Title:Comptes Rendus - Académie des Sciences. Géoscience
Source:Comptes Rendus - Académie des Sciences. Géoscience, 337(9), p.872-879. Publisher: Elsevier, Paris, France. ISSN: 1631-0713
Publication Date:2005
Note:In French with English summary. 27 refs.; illus., incl. geol. sketch map
Summary:The late Hercynian evolution in the French Massif Central corresponds to the transition from a LP-HT (M3 event at 314 ± 5 Ma) to a higher temperature metamorphism corresponding to the emplacement of the Velay granite dome (M4 event at 301 ± 5 Ma). This transition is outlined by the development of sillimanite folia, which represent planes of base-cation leaching, associated with ductile deformation. This evolution implies a counterclockwise retrograde P-T-t path under subsolidus conditions between M3 and M4. To cite this article: P. Barbey et al., C. R. Geoscience 337 (2005). Abstract Copyright (2005) Elsevier, B.V.
Subsections:Metamorphism: regional, dynamic
Subjects:Concentration; Deformation; Ductile deformation; Metamorphic rocks; Metamorphism; Mineral assemblages; Mineral composition; Nesosilicates; Orogeny; Orthosilicates; P-T conditions; P-T-t paths; Partial melting; Silicates; Sillimanite; Tectonics; Variscan Orogeny; Central Massif; Europe; France; Haute-Loire France; Velay; Western Europe
Coordinates:N445500 N451500 E0043000 E0030000
Abstract Numbers:06M/3685
Record ID:2007030054
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands
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