富蕴县阿克塔斯铜金矿床火山岩地球化学

Fuyun County Aktas Copper-gold Deposits,Volcanic Rocks Geochemistry

阿克塔斯铜金矿区位于新疆富蕴县内,矿区主体位于东准噶尔北部,靠近阿尔泰与北准噶尔两个具有不同构造特征和演化历史的构造单元。阿克塔斯金铜矿体主要赋存于石英脉、斜长花岗岩、蚀变安山岩及接触带内的千枚岩破碎带中。根据安山岩的微量元素分配模式的研究发现,岩浆在演化的过程中有大陆地壳的物质加入其中并进行混染。通过对含矿石英脉中黄铁矿和黄铜矿中的硫进行同位素分析,表明黄铁矿、黄铜矿中硫可能都来源于地幔。矿区区域地球化探异常发育,金、铜、砷元素含量高、相关性好,并与火山―岩浆岩有密切空间关系,是寻找评价与火山岩以及浅成岩有关铜金矿的有利地段。

Aktas copper-gold area is located in Fuyun County, the main mining area is located in northern East Junggar, near the Altai and North Junggar two tectonic units with different structural characteristics and evolutionary history. The Aktas gold and copper ore bodies deposits in the quartz veins, plagiogranite, altered andesite contact zone of within phyllite fracture zone. According to the findings of the trace element distribution patterns in andesite magma. In the process of evolution of continental crust material to join and contamination. Isotopic analysis of sulfur bearing quartz veins of pyrite and chalcopyrite indicate that the sulfur of chalcopyrite and pyrite may have derived from the mantle. The area of regional geochemical exploration of abnormal development, gold, copper, arsenic content is high with a good correlation, and the close spatial relationship with the volcanic-magmatic rocks, it is to find favorable areas of the volcanic and hypabyssal rocks of copper and gold.