The Rift Evolution and Metallogenic Regularities of Gold Ores of the Western part of Beishan in Xinjiang

The continental rift tectonic belt of western Beishan in Xinjiang province was occurred on the basis of Archean-Proterozoic layers of Tarim block, bearing a block-rift-block,tectonic pattern, which along NEE-NWW had ever underwent 3 distinct large-scale convergence and disconvergence events as well as evolution model changed from South to North in ∈,O-S、C-P, respectively. There were many distinct types of Au ores exposed in the Pelaozoic deposits, and contained many of Au-metallogenic subzone. The discussion presented in this paper is the Pelaozoic Vlevel Au-Cu metallogenic regularity of Beishan in Xinjiang province1 For ore-hosting rock types it can divide in to six types,the ore-bearing rocks were composed of 4 distinct types:quartz vein,cataclastic alteration,quartz vein and cataclastic a lteration, in termediateacid magmatic hydrothermal,among of which the quartz vein and cataclastical teration was a domination. The ore-controlling factors were stratig raphy formation,lithological formation(volcanic rock, clastic rock and Ca rbonaceous series),ductile-brittle fracture,magmatic rock and so on,the first three types are mainly. Mineralization epochis Hercynian,Indo-Chinese and Himalayan,and the tectonic movement is synchronize with the Hercynian.