Potentials of Airborne Hyperspectral AVIRIS-NG Data in the Exploration of Base Metal Deposit—A Study in the Parts of Bhilwara, Rajasthan

In this study, we have processed the spectral bands of airborne hyperspectral data Advanced Visible Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) for delineating surface signatures associated with base metal mineralization in Pur-Banera area Bhilwara district, Rajasthan, India.The primaryhost rocks Cu, Pb, Zn are Banded Magnetite Quartzite (BMQ), unclassified calcareous silicates, and quartzite. We used ratio images derived from scale root mean squares (RMS) error imagesusing multi-range feature fitting (MRSFF) methodto delineate host AVIRIS-NG image. The False Color Composites (FCCs) different relative band depth images, bands, were also few minerals. These minerals areeither alteration resulting ore-bearing fluid migration orassociated redox-controlled supergene enrichments ore deposit.The results show that image products study can 1:10000 to 1:15000 scales narrow down targets detailed exploration.This alsoidentified possible structural control over knownsurface distribution lithocap mineralizationusing ground-based residual magnetic anomaly map. This observationstrengthens importance identified proxiesas an indicator mineralization. X-ray fluorescence analysis samples collectedfromselected locations within confirms Cu-Pb-Zn enrichment. sulfide microphotographs polished sections rock collected places where proxies observed field. justified investigation utilize using dataand validated field observations, geophysical, geochemical, petrographical data.