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- Explains isostasy by assuming earth's crust has same density everywhere and differences in elevation result from differences in thickness of outer layer.
Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall
- A concept of the mechanism of isostasy, proposed by George Bedell Airy, that postulates an equilibrium of crustal blocks of the same density but of different thickness; thus the topographically higher mountains would be of the same density as other crustal blocks but would have greater mass and deeper roots. CF: Pratt hypothesis
Source: Dictionary of Mining, Mineral, and Related Terms