Concludes that the contact between the Verrucano conglomerate of the Briancon region, France, and underlying Carboniferous deposits is stratigraphic rather than tectonic, on the basis of included reworked Carboniferous pebbles, the superposition of the conglomerate on Carboniferous strata of different ages, the absence of Stephanian beds, the persistence of the detrital facies of the conglomerate, and the existence of an angular unconformity at several localities. Generally assigned to the Permian, the conglomerate exhibits many characteristics similar to those of the basal conglomerate of Triassic quartzites.

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