There is very little evidence, as far as I see, for the ice interpretation. I think the deep-sea and explanation suits best. Previous to the Levies the country was either faulted or folded (rather the former) and rock slides produced. In general the material got to the sea in small pieces and the constantly rising sea on the land finally consumed most of these rock slides. In the places of their origin they made the local conglomerates, and only in the two most southern zones is the material still preserved as the rock slide material.