ANALYSIS OF ROCK SAMPLES BY ATOMIC-ABSORPTION AND X-RAY-FLUORESCENCE

Geological investigations are usually made by a number of techniques. The purpose of present work was to explore the chemical composition of the samples under study and also to see the reliability of the differ ent instrumental techniques used for rock and mineral analysis. Chemic al tests were performed prior to the use of any other technique in ord er to determine the nature of these rocks. The chemical analysis indic ated the silica dominance in the rock composition, hence the acidic na ture of the rock. The major, minor and trace elements were determined by employing X-ray fluorescence and atomic adsorption spectroscopic me thods.