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- Title
Thermal History of the Earth.
- Authors
POOLE, J. H. J.
- Abstract
PROF. ARTHUR HOLMES has written to me to point out that I have misunderstood his meaning in his recent paper on the above subject1. In this paper he states (p. 187 and Fig. 9, p. 179) that the condition for permanent convection currents to be possible in the earth's crust below a certain depth is that the adiabatic and freezing point gradients of the fluid substratum should become tangential at that depth. I assumed that he meant that, if the actual numerical values of the two gradients at various depths were plotted against the depth, the two resulting curves would touch at the critical depth, and that consequently if the freezing point gradient were greater above this depth it would also be greater again below it.
- Publication
Nature, 1934, Vol 133, Issue 3363, p574
- ISSN
0028-0836
- Publication type
Article
- DOI
10.1038/133574b0