Figure 7. Latitude dependence of (a) H a and (b) dH for two geomagnetic field regimes. (1) Central axial dipole field (Figure 7a); (2) stable polarity field (Kiaman superchron); (3) frequent-reversal field (45-0 Ma). Data are averaged over paleolatitude intervals of 10o and 20o (double circles). Vertical bars are standard deviations (dH) in a given paleolatitude interval.