Editor's note: This paper is based on material presented at SEG's 1998 Annual Meeting.

Airborne electromagnetics (AEM) surveying has been by far the most successful mining geophysical technique ever developed. Since the start of commercial use in early 1951, AEM can be credited with directly aiding in the discovery of more than 80 deposits, with a gross value of more than $100 billion.

During its first decade of development and application, several companies that invested in AEM technology made spectacular discoveries using their in-house systems. This fostered the beginnings of what became one of the strongest and consistent mythologies in...

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