The interpretation of airborne gamma ray spectrometric data from the Magal Gebriel area, Eastern Desert, Egypt, has shown that a statistical treatment of these data in terms of individual geologic units is useful in detecting surface uranium mineralization. This is achieved through outlining the probable boundaries of potential uraniferous provinces.
The locations and magnitudes of deviations in units equal to the standard deviation from the mean for eU, eUleTh and eU/ K are shown on a uramum anomaly map. This map shows two significant groupings of elevated eU values that coincide with elevated eU/eTh and eLJ/K values, associated with granitic rocks. This is in agreement with a recent geological study carried out on the Magal Gebriel area, which has reported the presence of secondary uranium minerals, namely B-uranophane, in these two parts.
From the present study, the granitic bodies are considered to he the most promising for uranium prospecting in the area. The potential for significant uranium mineralization is still a matter of speculation. Uranium, thorium and potassium associations in these granitic bodies were studied applying correlation diagrams, indicating that uranium anomalies have the same pattern and are spatially related to both thorium and potassium anomalies, which suggests that there has been no uranium mobilization in these anomalous granites.