The Geology of Mont Blanc

Abstract

MONT BLANC and its aiguilles present some difficult problems to both petrologists and physical geologists; problems, which, though they have something in common, are to a great extent distinct. The authors, however, have grappled with both. Their monograph, as a study of the petrography of the region, is full of valuable information; but we think they have not been quite so successful in dealing with what it is now the fashion to call the tectonics. This portion no doubt contains much that is valuable, but the physical structure of the massif of Mont Blanc has been treated too much as if the latter were isolated instead of being, as is really the case, inseparable from the western and central part, perhaps even from the whole, of the Alpine chain.