Abstract

A detailed analysis of the aeromagnetic data over the Budgell Harbour Stock indicates that the stock can be modelled as a vertical prism having a depth to the bottom of approximately 5.5 km. The depth of the body has been calculated using the measured magnetic susceptibility and NRM data for 6 sample sites from the stock. The modelling results indicate that the apparent susceptibility determined from the surface rock samples are too small to explain the observed anomaly. This indicates that the true apparent susceptibility for the stock is larger than the observed apparent susceptibility.

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