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Jacques Belliere 《Geodinamica Acta》2013,26(1):13-16
AbstractThree 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. 相似文献
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