Abstract
The problem of the accumulation of the Moon is discussed on the assumption that the Moon is a captured object. If it is such, it is highly improbable that it is the only object of this kind present in the early solar system. Evidence indicating that other massive objects were present at that time is presented. Also, it is pointed out that interior of the Moon must contain normal solar proportions of the elements of intermediate volatility in the lunar interior, if the Moon accumulated in a gas sphere.
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References
Alfvén, H.: 1954,On the Origin of the Solar System, Clarendon Press, Oxford.
Chandrasekhar, S.: 1955,Vistas Astron. 1, Pergamon Press, p. 344.
Duke, M. B. and Silver, L. T.: 1967,Geochim. Cosmochim. Acta 31, 1637.
Freemanet al.: 1972, this conference.
Jeans, J. H.: 1929,Astronomy and Cosmogony, Cambridge Univ. Press.
King, A.: 1971, Private communication and several addresses at conferences.
Lal, D. and Rajan, R. S.: 1969,Nature 223, 269.
Marti, K., Wilkening, L., and Suess, H.: 1971,Astrophys. J., in press.
Pellas, P., Poupeau, G., Loren, J. C., Reeves, H., and Audause, J.: 1969,Nature 223, 272.
Singer, S. F.: 1968,Geophys. J. Roy. Astron. Soc. 15, 205.
Urey, H. C.: 1958,Proc. Chem. Soc., p. 67.
Urey, H. C.: 1964,Rev. Geophys. 2, 1.
Urey, H. C.: 1966,Monthly Notices Roy. Astron. Soc. 131, 199–233.
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Urey, H.C. Evidence for objects of lunar mass in the early solar system. The Moon 4, 383–389 (1972). https://doi.org/10.1007/BF00562005
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DOI: https://doi.org/10.1007/BF00562005