
%0 Journal Article
%A Facer, R.A. 
%T When the dipole geomagnetic field dwindles away
%J Exploration Geophysics
%D 1971/06/01
%V 2
%N 2
%P 29-33
%K 
%R https://doi.org/10.1071/EG971229
%U https://www.publish.csiro.au/paper/EG971229 
%X It is now widely accepted that the geomagnetic field changes sign from time to time, generally irregularly, this "reversal" being accompanied by a decrease in intensity. Study of these changes in the past geomagnetic field has been limited to consideration of the dipole field. Unfortunately, the non-dipole geomagnetic field is more significant than has been considered previously - not only in palaeo-magnetism (Facer, 1970), but perhaps in the future in exploration magnetic studies also. 
