rock [Noun] + precambrian [Noun]

Strength Strength Dispersion
A:
9
CHISQ:
452.24
AWT:
18,036,379
TTEST:
2.94
G2:
62.36
FAWT:
3.01
MI:
5.7
LOGLOG:
18.08
JD:
0.45
MI3:
12.04
DICE:
0.2
RANGE: