ENDOGENIC GOLD DEPOSIT SERIES OF XIONG' ER SHAN AREA

Gold deposits in Xiong'er shan region,according to the factors-controlling and containers, can be divided into several styles as follow:berrias type, quartz vein type, tectonically fractured zone metasomatite type and some complex-controlled types by different containers, spatialy, these deposits are coexisting and gradual changing. In the process of metamorphism,the gold in the rock of Taihua Group which contained high content of gold were removel and remigrated into the favorable tectonically parts and located in it,forming initial mineralization. It can be remobiled and metallized by later magma fluid. It's the assimilating-melting type of cala-alkaline granitic magmation of mid-late Yanshan period,which have been proved to be poly-epoch and same original, that provided the mainly gold for deposit. It is concluded from reserch of stable isotope (s,h,o,c) REE and fluid inclusions that ore-forming hydrothermal mainly come from magma,mixing by different content metamorphic water (earlier) and meteric water (later) in different deposit. It's inferred that there deposits were formed in a uniform tectonically enviroment and ore-forming background,with similar ore-forming material (gold and fluid)origin and gensis. Characterized by breccia type gold deposit.dominated by tectonically fractured zone metasomatite type and breccia type, these deposits composed a special association, named endogenic gold deposit series of Xiong'er shan area.