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Last name: BOSSE
First name: Valérie
International audience
This work presents petrologic data obtained from shielded mineral inclusions within large garnets from the Beni-Bousera metamorphic unit (internal Rif belt, northern Morocco) combined with in situ U‒Th‒Pb dating of monazite inclusions. In the considered Beni-Bousera metapelites, the occurrence of mineral inclusions of kyanite + rutile +...
Detailed 40Ar/39Ar geochronology on single grains of muscovite was performed in the Variscan Tanneron Massif (SE France) to determine the precise timing of the post-collisional exhumation processes. Thirty-two plateau ages, obtained on metamorphic and magmatic rocks sampled along an east–west transect through the massif, vary from 302 ± 2 to...
RbSr and 40Ar/39Ar data mainly ranging from 345 5 to 361 5 Ma and from 348.4 1.4 to 364.6 1.4 Ma, respectively, have been obtained on phengite from the HP/LT rocks from the Ile de Groix (Armorican Massif, France), which represents one of the few occurrences of Variscan blueschists. Petrological data show two blueschist-facies units,...