glaciation then exposed huge deposits of frozen methane, a powerful greenhouse gas.
Most of their results are the reverse of those which brought on glaciation.
The development of glaciation was in strict accordance with existing conditions.
The next step in our history of glaciation is to outline the disappearance of the ice sheets.
We have considered the Laurentian highland and the glaciation which centered there.
Geologists will have to reconsider their notions as to glaciation of our Antipodes in the light of the newly discovered evidence.
Yet glaciation is now far less extensive than in the Pleistocene.
Let us now inquire how the cyclonic hypothesis accounts for glaciation in low latitudes.
Within the field of glaciation, so far as the ice rested bodily on the surface, the rocks were rapidly worn away.
But that the larger part of the glaciation of that country has been supramarine, I am willing to concede.