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Polar Wandering and Mantle Convection

Published online by Cambridge University Press:  27 June 2016

H. Takeuchi  and
N. Sugi
H. Takeuchi
Affiliation:
Geophysical Institute, Faculty of Science, University of Tokyo, Japan
N. Sugi
Affiliation:
Geophysical Institute, Faculty of Science, University of Tokyo, Japan

Abstract

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According to the mantle convection theory, mantle materials come up to the surface of the Earth at the mid-oceanic ridge system, go off in two horizontal directions, and finally at the trench and orogenic belt system they return to the interior of the Earth. We assume no return flow in the deeper part of the mantle and calculate the change of products of inertia of the Earth due to the above mass transfer. The polar wandering thus calculated is towards the direction of about 90° east and its absolute value is about 0.9 × 10−2 s/yr.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 48: Rotation of the Earth , 1972 , pp. 212 - 214
Copyright
Copyright © Reidel 1972 

References

Munk, W. H. and MacDonald, G. J. F.: 1960, The Rotation of the Earth, Cambridge University Press, p. 176.Google Scholar
Wilson, J. T.: 1967, in Gaskell, T. F. (ed.), The Earth's Mantle, Academic Press, New York and London.Google Scholar