When I consider thy heavens, the work of thy fingers, the moon and the stars,...
Psalm 8:3
"The ages of the lunar rocks based on radiometric dating have caused confusion and concern to those involved in the Apollo project. 
Apollo 11 rocks and soils gave fairly concordant ‘ages’ which, however, “were unacceptably high” even for evolutionists.
Apollo 11 rocks and soils gave fairly concordant ‘ages’ which, however, “were unacceptably high” even for evolutionists.
Apollo 14 gave primary ‘ages’ of rocks and soils which were “discordantly old”.
By the time the Apollo 16 results came in, the statement was made that “all highland soils yield very discordant ages”.
According to evolutionary theory, the moon should be giving ‘ages’ in the range from 3 to 4 billion years by radioactive dating methods since the solar system is presumed to be about 4.5 billion years old.
In actual fact, the ‘ages’ given by these methods ranged from 2.3 billion up to 4.9 billion years, though odd samples extended these limits marginally.
A further problem is the wide variation in ‘ages’ from highland soils and rocks even in the same locality. Also, while the mare plains gave reasonably concordant results, the different plains gave widely different ‘ages’.
From a creationist point of view with changing c, one would expect the datings of the highland soils to give greatly differing results due to the wide variety of events occurring at different times during Creation Week.
---To understand this it is only necessary to point out that the 
highlands are the heavily cratered regions on the visible side of the moon.
From the very nature of the whirlpool approach we would expect that there would be impact craters left as a residuum of the rapid supernatural processes involved in the formation of solar system objects.
Thus we would expect the highlands to give a wide variation in ages. The dark mare plains would have formed in the latter part of the Week.
--There are two reasons for suggesting this.
First, they are very lightly cratered, which suggests that most of the cratering activity was over by the time of their formation, and secondly, by analogy with the earth’s interior, it was only later in the Week that a supply of molten material was available through the medium of radioactive heating.
Small- scale local melting of the crustal region probably occurred with the impact of the larger objects at any time, as evidenced by the small lava-filled areas on similar structures on the far side of the moon, such as Mare Orientalae." CMI