STUDY ON THE FORMING OF ALBITITE AND GOLD DEPOSIT IN DAGOUGU, WESTERN GUANGDONG

Dagougu gold deposit,occurring majorly in the albitite belt of Sinian Lechangxia group,is a new type of deposit related to albitite.The study on the geochemistry,trace elements and REE of the Au-rich albitite shows that the albitite has no genetical relation to the schist of Lechangxia group and nearby granite.The Au-rich albitite was formed mainly by hydrothermal sedimentation.The albitite is closely related to gold deposit.The genesis of the albitite-type gold deposit is hydrothermal sedimentation + reformation.