Geology Reference
In-Depth Information
Figure 3.10
Effect of strike. A depth estimate on a profile recorded along a
traverse line (i.e. one of the set of continuous, approximately straight lines)
must be multiplied by the cosine of the angle A between the traverse lines
and a line drawn at right angles to the magnetic contours. The example is
from an aeromagnetic map (from northern Canada) but the same principle
applies in ground surveys.
the profile must either be measured along a line at right angles to the strike
of the anomaly or else the depth estimate must be multiplied by the cosine
of the intersection angle (A in Figure 3.10).
