Abstract
Abstract During 1978 and 1979 the Bureau of Mineral Resources investigated the characteristics of the magnetic anomaly at Elura by a program of airborne, ground, carborne, and down-hole magnetic surveys, and laboratory magnetic measurements on core samples. The results of this work show that the magnetic anomaly at Elura is caused mainly by a remanently magnetised pyrrhotitic zone within the Elura deposit. However, near-surface magnetic sources contribute to the anomaly at low altitudes. Spectral analyses of airborne and carborne magnetic data at Elura indicate that the effects of near-surface and bedrock magnetic sources can be separated by careful attention to data acquisition and filtering.
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