A STUDY ON THE INCLUUION OF MINERALS IN THE ANJIACHA GOLD DEPOSIT,GANSU PKOVINCE

The Anjiacha gold deposit is located in Xihe county,Gansu province,On the basis of the analytical data for inclusion composition in minerals and the measuring results of the homogenization temperatures for the inclusion in quartz,we have calculated the metallogenetic pressure for the deposit, the physico-chemical parameters of the ore-forming fluid and its characterastic ratios of the chemical composition etc,And then we discussed some problems about the gold mineralization together with local-geological features still further. These problems are(1)the variation regularity of the metallogenetic temperatures and some other physico-chemical parameters in different ore-forming stages of the gold mineralization;(2)the nature and source of the mineralizing solution;(3)the direction of flow for the hydrothermal mineralizing solution;(4) the migration-pricipitation of the gold in the hydrothermal fluid;and(5)the relationship between the gold mineralization with the chemical composition of the hydrothermal fluid etc. The results show that the Anjiacha gold deposit possess the genetic characteristic of the reworked strata-bound gold deposit.