BACKGROUND OF Pt AND Pd IN WESTERN GUIZHOU PROVINCE AND THEIR ENLIGHTENMENT FOR EXPLORING THE Pt AND Pd ORE DEPOSITS

The background values of Pt and Pd are respectively 2.46×10-9 and 1.60×10^-9 in stream sediment and 1.04×10^-9 and 0.76×10^-9 in rock in western Guizhou province. Results obtained from the Pt and Pd background of various rocks indicate that there is a geochemical block in western Guizhou province, and a new type of Pt and Pd ore deposits should be found in this geochemical block.