Were the average temperature of the earth a few tens of degrees less than it is, ice would be the most common crustal rock. The fact that it occurs in its liquid phase over 71 per cent of the earth's surface should not obscure the fact that the oceans are geologic features, particularly in their substructure, their boundary relations, and their history.
Cloud, P. E.
Journal of the Minnesota Academy of Science, Vol. 32 No.2, 109-116.
Retrieved from https://digitalcommons.morris.umn.edu/jmas/vol32/iss2/12