Abstract
A high-intensity aeromagnetic anomaly zone located in the region of Gangampalli-Peruru with an amplitude range of 500–1000 nT in the midst of peninsular granite-gneissic complex in a part of the Eastern Dharwar Craton (EDC) is associated with quartz monzodiorite with abundant titanite, Zr, and REE elements. This zone is situated between the eastern part of the Closepet granite (2513 Ma) and western part of the Ramagiri schist belt (2614 Ma). Spectral analysis and modeling of the aeromagnetic anomaly field of the Gangampalli-Peruru complex has been carried out to estimate the thickness of the complex. The analysis has yielded an average thickness ranging from 1700–2250 m.
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