3D inversion of magnetic data to recover a distribution of magnetic susceptibility has been successfully used for mineral exploration in the last decade. However, the unknown direction of total magnetization has limited the use of this technique when strong remanence is present. In this paper, we propose a comprehensive methodology for solving this problem by examining a suite of approaches of practical utility. We illustrate these methods with a set of high-resolution aeromagnetic data acquired for diamond exploration in the Canadian Arctic.

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