Interpretation of vertical magnetic anomalies due to inclined veins striking neither north nor east

Abstract

In the present paper an attempt has been made to interpret irregular vertical magnetic anomalies due to magnetite ore in the form of inclined thin veins, pods or lenses striking neither north nor east. A chart has been prepared for varying percentage of magnetite ore using arbitrary values of susceptibility contrast for Singhbhum and Palamau districts (Bihar), which would be helpful while interpreting magnetic anomalies to be found in these areas. Depth to width ratio against parameter c as well as two theoretical curves have also been presented. Further two field profiles are being matched with theoretical curves. The depths and widths of thin veins have been calculated using simple rules. An overall checking of these quantities is possible by curve-matching process. © 1971 Birkhäuser Verlag.