CONTRASTED METAMORPHIC EVOLUTION IN TWO SERIES
OF THE VOSGES MASSIF (FRANCE): ARGUMENTS FOR A THRUSTING EVENT OF VARISCAN
AGE
P.F. Rey*, J.P. Burg**, J.M. Lardeaux and P. Fluck***
*Laboratoire des Sciences de la Terre, ENS Lyon, 69364 LYON Cedex 07,
France
**Centre Geologique et Geophysique, USTL, 34095 Montpellier Cedex 05,
France
***Laboratoire de Mineralogie et Petrologie, Universite Louis Pasteur,
1 Rue Blessig, 67084 Strasbourg, France
in: C. R. Acad. Sci. Paris (1989), t.309, Serie II, p.815-821.
ABSTRACT
Thermobarometric data combined with tectonic studies of two metamorphic
units in the Vosges Massif, give evidence for two different P-T-t paths.
Granulite facies rocks were metamorphosed at relatively high pressure before
being thrust onto lower biotite-sillimanite gneisses, probably during the
variscan orogen.
ACKNOWLEDGMENTS
This study was financed by the INSU-CNRS (Projet: ECORS-Graben du Rhin
seismic profile).
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