U-PH AND RB-SR DATING AT 390 MA OF THE PE YROLLES ORTHOGNEISS (CEVENNES, MASSIF-CENTRAL) - GEODYNAMIC IMPLICATIONS

Citation
C. Caron et J. Lancelot, U-PH AND RB-SR DATING AT 390 MA OF THE PE YROLLES ORTHOGNEISS (CEVENNES, MASSIF-CENTRAL) - GEODYNAMIC IMPLICATIONS, Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes, 323(4), 1996, pp. 305-312
Citations number
11
Categorie Soggetti
Geosciences, Interdisciplinary
ISSN journal
12518050
Volume
323
Issue
4
Year of publication
1996
Pages
305 - 312
Database
ISI
SICI code
1251-8050(1996)323:4<305:UARDA3>2.0.ZU;2-4
Abstract
The Peyrolles orthogneiss (Cevennes) records a U-Pb zircon-apatite age of 382 +/- 16 Ma and a Rb-Sr whole-rock age of 392 +/- 15 Ma. These c oncordant ages refer to the emplacement of the Peyrolles magmatic prot olith that occurred 40 Ma before the Variscan tectonometamorphic event in the Cevennes.