Abstract

The use of gravity gradient (GG) data in exploration is becoming more common. However, interpretation of gravity gradient data is not as easy as the familiar vertical gravity data. For a given source, regardless of its simplicity, gravity gradients often produce a complex pattern of anomalies (single, doublet, triplet, or quadruplet) as compared to the simple single (monopolar) gravity anomalies. This paper is a minitutorial on gravity gradients and is designed to provide a simple explanation of the complex pattern of GG anomalies and suggest some guidelines for the interpretation of measured surface GG data.

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