Figure 39. Summary of spectra of variations of the geomagnetic field direction in the process of cooling of the Bushveld, Kivakka and Monchegorsk intrusions. Results of the wavelet analysis (see Tables 10, 14, 16, and 17). Black bars are rhythms of oscillations of D and I. Crosshatched rectangles are intervals of rhythms changed in time. Height of the bars and rectangles reflects the number of oscillations (or the number of splashes) of one rhythm. Different methods of obtaining the paleomagnetic record are marked in different hatching. The most striking rhythms with the highest amplitude are marked with red.