1887
Volume 65, Issue 4
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

The aim of this paper is to add confidence to existing methods using decay shape analysis to detect superparamagnetic responses in airborne electromagnetic data. While expensive to acquire, vertical spatial gradient measurements of the electromagnetic signals can discriminate near‐surface superparamagnetic sources. This research investigated the use of horizontal spatial gradients and amplitude information as further indicators of superparamagnetic. High horizontal gradients were shown both theoretically and in field data to help discriminate superparamagnetic from deep mineral targets. Further, superparamagnetic responses have characteristically small amplitudes inconsistent with realistic mineral exploration targets at shallow depths.

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2016-09-21
2024-03-28
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  • Article Type: Research Article
Keyword(s): Data Processing; Electromagnetics; Interpretation; Magnetics

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