STATISTICAL INTERPRETATION OF AIRBORNE GAMMA-RAY SPECTROMETRIC DATA, ESH-EL-MILAHA AREA, NORTHERN EASTERN-DESERT, EGYPT

The technique of factor analysis has been applied to airborne gamma-ra y spectrometric data from the Esh Ei Milaha area, northern Eastern Des ert, Egypt This analysis allows the geophysicists to perform a co-ordi nated transformation of the three radioactive element concentrations ( eU, eTh and K%), their ratios and the total count. It is concluded tha t factor one (F1) has an appreciable high positive loading for variabl es Th and K and a negative loading for U/Th and U/K ratios. The second factor (F2) has a high loading for U,U/Th and U/K, while factor three (F3) has a negative loading with the total count. Factor one (F1) rep resents the integrated radioactivity, while F2 and F3 allow the differ entiation of rock types. The calculated factor scores may be used to s patially characterize different rock units in the Esh El Milaha area, Eastern Desert, Egypt.