This is well seen in some of our coal-fields, where the coal has frequently been destroyed over large Areas by the proximity of masses of what was once melted rock.
"Geology"
James Geikie
But as we receded from the shore, and approached Areas which were once deeply submerged, we should find that the change of material was generally from coarse to fine.
"Geology"
James Geikie
In these troubled Areas I had frequent opportunities to measure ice-thickness.
"My Attainment of the Pole"
Frederick A. Cook