Specifications

University of Pretoria etd – Combrinck, M (2006)
will be noisier than the other in the overlapping range. If data quality is good for both
frequencies, the conductivity depth sections obtained from the different frequencies
should also overlap for intermediate depths with the high frequencies adding shallower
data and the medium frequencies contributing to the deeper parts of the sections. Two
lines are used to illustrate examples of poor and good correlations between these
frequencies and to determine the reasons for discrepancies. Figure 5-9 is an example of
good correlation between the sections obtained from the two frequencies. Three areas of
interest are indicated by blocks A, B and C. In block A, a conductor is seen on both the
high and medium frequencies.
Figure 5-9: Line 450N showing good correlation between conductivity depth sections obtained
from the high (top) and medium frequencies (bottom).
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