Geoscience Reference
In-Depth Information
T
d
A
d
A
b
l
o
section and strike of strata
89°
89°
90°
80°
60°
70°
50°
85°
40°
85°
80°
30°
70°
80°
60°
20°
50°
40°
70°
30°
20°
60°
10°
10°
50°
40°
5°
5°
30°
20°
1°
30´
10°
10´
5°
1°
1°
Figure A10.1
Nomogram to determine the apparent dip given the true dip and the angle between the strike
and the line of section. The dashed line illustrates an example: for a true dip of 43° on a cross-section oriented
at 35° to the strike of the bedding, the apparent dip on the cross-section would be 28°. (Based on Billings
1972.)
