stratigraphical [Adjective] + boundary [Noun]

Strength Strength Dispersion
A:
5
CHISQ:
542.29
AWT:
29,963,465
TTEST:
2.22
G2:
46.84
FAWT:
1.81
MI:
6.79
LOGLOG:
15.76
JD:
0.17
MI3:
11.43
DICE:
0.22
RANGE: