Abstract
Laboratory investigations have been carried out on the uranium mineralization in the Maugi-Reshian area, Azad Kashmir, Pakistan. In order to study the nature of uranium and associated mineralization, fission track radiography was employed. In this context, thin polished sections of solid rock samples having sizes 2.8×3.5 cm were placed in close contact with “lexan” polycarbonate detectors and loaded in a pure aluminium container. These samples were then irradiated with thermal neutrons of fluence 5 × 10 16 n/cm 2 and etched in 6N NaOH at 80°C for 6 minutes. Two types of fission track sources has been found in the detector: point sources matching with the grain shapes and disseminated sources indicating presence of uranium dispersed in the rock. The fission track point sources indicate two types of uranium mineral phases namely brannerite and xenotime. Whilst the mineral phase related to disseminated tracks indicate the presence of uranium associated with geothite veins and matrix in the graphite schist breccia.
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Schedule a callMore From: International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements
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