Underground tower gravity vertical gradient (UTGVG) measurements made in mine workings have been applied to the detection of caverns, old mine workings, dislocations, and erosive or karstic forms. Since UTGVG measurements are subject to large errors, Kotelnikov’s criterion can be used to determine the probability of isolation of the useful anomalies. The properties of the UTGVG reduce the ambiguity of interpretation of underground gravity surveys. Simultaneous Δg and UTGVG measurements carried out in the same underground profile frequently replace a three‐dimensional or multilevel gravity survey. The paper presents some applications of the UTGVG.
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