Application of Geochemical and Statistical Methodsfor Prospecting of Ore Deposits inNorth· East of Khorasan.

For evaluation of the mineral potential of Sirutr area in the north east of Khorasan, 140 stream sediment samples were analyzed for Ni , Co, Ag, Sb, Hg and Au. Results of these analyses ind ica te an unusual assay for most of these elemen ts, especia lly for gold a nd ant imony. Statis tical analyses and co mparison of geologic map with the surrace anomaly maps indicate a posit ive re lations hip between Ni a nd Co with mafic and ultramafic rocks in the area; while the unusual distribution of gold, antimony and to a lesser extent mercury can be related to the hydrotbermal processes. From this study it is concluded th a t the statistical analyses along with the geological and geochemical studies are very useful in recognition of the mineralized areas and understanding of tbe mineralizing processes.