
TY  - JOUR
A1  - Runcorn, S.K. 
T1  - Geomagnetic reversal transitions and d" layer
JF  - Exploration Geophysics
JO  - Explor. Geophys.
Y1  - 1993
VL  - 24
IS  - 2
SP  - 135
EP  - 138
KW  - 
UR  - https://doi.org/10.1071/EG993135 
N2  - To have found geological sections that record polarity reversals and could be sampled in detail is a great advance in palaeomagnetism (Laj et al., 1991). Reversals over the last 11 Myr (Laj et al., 1988; Valet et al., 1988; Tric et al., 1991a,b) suggest that the core dynamo reverses by the rotation of the dipole through 180°, at least in many cases, rather than, as was thought previously, by the field becoming non-dipolar or by disappearing. The paths of the virtual geomagnetic poles (VGP's) during these transitions seem to fall in two longitude sectors, one through the Americas and the other, 180° away, through Australia and Eastern Asia. 
ER  -

