On the Representation of the Quaternary and Late Tertiary Geomagnetic Fields in Terms of Dipoles and Quadrupoles

Abstract

Methods of computing relative values of the first eight Gauss coefficients of the geomagnetic field from directional data only are described. The purpose is the analysis of the palaeomagnetic directions for which intensity data are normally lacking and which are characteristically subject to considerable experimental uncertainty of the order of 5°.