Abstract
Model calculations show that the thermal history of a Moon which originated by fission from the proto-Earth is the same as that for the Moon as it is currently understood. In particular, a fissioned Moon currently has a small percent of partial melt or at least near solidus temperatures below depths of 800 km in accord with the seismic data which show that the deep interior of the Moon has a very lowQ. The models have moderate (20–50%) degrees of partial melting in the upper mantle (depths < 300 or 200 km) in the period between 3 to 4 × 109 years ago and, therefore, can account for the mare filling epoch. Finally the heat flow of the models is 18 ergs cm−2 s−1 which is close to the average of 19 ergs cm−2 s−1 derived from the Apollo heat flow experiments. These findings add further support for the fission origin of the Moon.
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Binder, A.B., Lange, M. On the thermal history of a moon of fission origin. The Moon 17, 29–45 (1977). https://doi.org/10.1007/BF00566851
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DOI: https://doi.org/10.1007/BF00566851