The moon

, Volume 1, Issue 4, pp 429–439 | Cite as

On the fissions of a solid body under influence of tidal force; with application to the problem of twin craters on the moon

  • N. Sekiguchi


The internal strain due to the tidal force in the proximity of a tide-generating body (in the present case, the Moon) is calculated according to the Lord Kelvin theory of Earth tides. The conditions for which uniform elastic sphere possessing a definite tensile strength is crushed near the surface of the Moon is investigated. The state of internal stress is almost independent of the value of elastic constants. Many lunar features, such as twin craters, craterous walled plains of irregular forms, compound craters, may be explained by fission of the meteoritic material before impact.


Tensile Strength Elastic Constant Internal Stress Solid Body Internal Strain 
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  1. Baldwin, R. B.: 1949,The Face of the Moon, Univ. of Chicago Press, p. 216.Google Scholar
  2. Fielder, G.: 1961,Structure of the Moon's Surface, Pergamon Press, p. 222.Google Scholar
  3. Kelvin, Lord: 1863, ‘Dynamical Problem Regarding Elastic Spheroid Shell; On the Rigidity of the Earth’,Phil. Trans. Roy. Soc. London, Treatise on Natural Philosophy 2, 837.Google Scholar
  4. Shoemaker, E. M.: 1962, ‘Interpretation of Lunar Craters’,in Physics and Astronomy of the Moon (ed. by Z. Kopal), Chapter 8, p. 340.Google Scholar

Copyright information

© D. Reidel Publishing Company 1970

Authors and Affiliations

  • N. Sekiguchi
    • 1
  1. 1.Tokyo Astronomical ObservatoryUniversity of TokyoMitaka, TokyoJapan

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