History of the Moon's Surface


Clues about the two main kinds of surface Even if we didn't have dates for lunar rocks based on radioactive decays, how could you tell that the rocks in the maria should be younger than the rocks in the highlands?

This suggests a possible history.

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Davison E. Soper, Institute of Theoretical Science, University of Oregon, Eugene OR 97403 USA soper@bovine.uoregon.edu