Preliminary research on the characteristics of alteration zone in uranium-rich deposit NO. 374

The characteristics of alteration zone in uranium-rich deposit No.374 is mainly discussed and conformity between zonation of altered prerequisite for metallogenesis and distribution of near-ore alteration is pointed out in this paper. Variation of mineral paragenetic association in the alteration zone corresponds mutually with variation of the contents of principal ore-forming elements and evolutional regularity is in order, which is an important condition for the formation of rich ores. Yolky hydromicazation in near-ore alteration is the most direct prospecting guide