DATING OF THE VARISCAN MAGNESIAN PLUTONIS M OF THE EXTERNAL CRYSTALLINE MASSIFS OF THE ALPS - THE SEPT-LAUX GRANITE (BELLEDONNE MASSIF, FRANCE)

Authors
DEBON F COCHERIE A MENOT RP VIVIER G BARFETY JC
Citation
F. Debon et al., DATING OF THE VARISCAN MAGNESIAN PLUTONIS M OF THE EXTERNAL CRYSTALLINE MASSIFS OF THE ALPS - THE SEPT-LAUX GRANITE (BELLEDONNE MASSIF, FRANCE), Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 318(11), 1994, pp. 1497-1504
Citations number
28
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
318
Issue
11
Year of publication
1994
Part
2
Pages
1497 - 1504
Database
ISI
SICI code
0764-4450(1994)318:11<1497:DOTVMP>2.0.ZU;2-G
Abstract
The emplacement of the Sept Laux granite has been dated at 332 +/- 13 Ma by the single-zircon lead-evaporation technique. This age is placed in the framework of the tectono-metamorphic evolution of the Belledon ne massif. Taken with earlier age determinations, it highlights the ex istence of two major Carboniferous plutonic suites in the external cry stalline massifs of the Alps, one early (almost-equal-to 330 Ma) and m agnesian, the other later (almost-equal-to 300 Ma) and more ferriferou s.