On the age of mylonites within the Mont Blanc massif
- 1 January 1988
- journal article
- research article
- Published by Taylor & Francis in Geodinamica Acta
- Vol. 2 (1) , 13-16
- https://doi.org/10.1080/09853111.1988.11105151
Abstract
Three generations of mylonites occur in the Mont Blanc Massif : — the first one has produced mylonitic schists trending N20°E, of regional extension; the late Variscan Mont Blanc granite intruded these mylonites; — the second one has affected large areas in the Mont Blanc granite, with the same N20°E direction; — the third one is located along rather narrow bands N45°E, in the granite as well as in the older mylonitic schists. All theses mylonites have been generated under (Bi) - greenschist facies conditions. They exhibit steeply plunging schistosity and lineation. They are all ante-Alpine; paradoxically, Alpine structures within the massif do not exhibit a striking appearence.Keywords
This publication has 1 reference indexed in Scilit:
- La deformation du socle et des couvertures delphino-helvetiques dans la region du Mont-Blanc (Alpes Occidentales)BSGF - Earth Sciences Bulletin, 1986