胶东焦家金矿蚀变岩中元素的质量迁移

焦家金矿蚀变构造发育，且有良好的分带性。根据各蚀变带组分的变化计算表明：早期的红化蚀变金仅有少量的富集，增加约０．７倍，相当于金的预富集阶段，而红化基础上的绢英岩化蚀变，金大量富集，为原来的５０倍左右。焦家金矿主成矿阶段表现为体积增加型，体系外有大量成矿流体的加入。

MASS TRANSFER OF ALTERED ROCKS IN JIAOJIA GOLD DEPOSIT,JIAODONG

Calculation of mass transfer with equation presented by Grant(1986) shows that gold has been little enriched in the early mineralization stage of red alteration in Jiaojia gold deposit,gold content in red altered rock is about as 0.7 times as that in the mother rock.But gold has been extremely enriched in the later stage of phyllic alternation,gold content in phyllic zone is about as 50 times as that in the red altered rock,the volume is increased and lots of materials are immigrated into the system during the main mineralization stage in Jiaojia gold deposit.