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The uranium containing phosphatic shale sub surface samples collected fromBijawar region Madhya Pradesh (M.P.), India as a part of the uraniumexploration programme of the Atomic Minerals Directorate for Exploration andResearch (AMD), Department of Atomic Energy (DAE) were characterized by avariety of molecular spectroscopic techniques such as photoluminiscence (PL),time resolved photoluminiscence spectroscopy (TRPL), X-ray absorption near edgespectroscopy (XANES), Raman spectroscopy and structural techniques such asX-ray diffraction (XRD) to identify the oxidation state, physical and chemicalform of uranium in this region. Oxidation state analysis by fluorescencespectroscopy revealed majority of the samples in U(VI) oxidation state. Themost abundant form of uranium was identified as uranate (UO66-) ion, as asubstituent of Ca++ in Ca5(PO4)3F, Flourapatite (FAP). Two uranium species inU(VI) and U(IV) state; (UO2)2+ adsorbed on silica and uranium oxide species(UO2) were also identified. The study provided baseline information on thespeciation of uranium in Bijawar region.

Characterization of Phosphorite Bearing Uraniferous Anomalies of Bijawar region, Madhya Pradesh, India