BASAL DEVONIAN TRANSGRESSION ON EARLY LOW ER PALEOZOIC IN THE MONT-PEYROUX NAPPE (MONTAGNE-NOIRE, HERAULT) - PETROGRAPHIC SIGNATURE AND GEODYNAMIC IMPLICATIONS

Authors
QUEMART P DABARD MP CHAUVEL JJ FEIST R
Citation
P. Quemart et al., BASAL DEVONIAN TRANSGRESSION ON EARLY LOW ER PALEOZOIC IN THE MONT-PEYROUX NAPPE (MONTAGNE-NOIRE, HERAULT) - PETROGRAPHIC SIGNATURE AND GEODYNAMIC IMPLICATIONS, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 317(5), 1993, pp. 655-661
Citations number
13
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre → ACNP
ISSN journal
07644450
Volume
317
Issue
5
Year of publication
1993
Pages
655 - 661
Database
ISI
SICI code
0764-4450(1993)317:5<655:BDTOEL>2.0.ZU;2-#
Abstract
The southern unit of the Mont Peyroux nappe (meridional part of the Mo ntagne Noire) is marked by a pre-Devonian stratigraphical non-sequence . Petrographic analysis of facies corresponding to the basal Early Dev onian restart of sedimentation shows, in comparison with the underlyin g Arenigian sedimentation, a significant change of the source area. It is characterized in particular, by the presence of debris derived fro m volcanic and metamorphic rocks respectively. Part of the Early Devon ian clastic supply could have resulted from the erosion of post-Arenig ian terrains emergent towards the end of Silurian times.