云南镇沅下岔河金矿成矿地质特征及成因

摘要

The Xiachahe Au deposit of Zhenyuan is in the Ailaoshan Au metallogenesis zone.And the Au ore body is in the quartz vein,which is close related with the alteration of wall rock,such as silisification,pyritization,limonitization,arsenopyritization,etc.It is a Himalayan middle-low T hydrothermal ore deposit.%镇沅下岔河金矿床位于哀牢山金矿带,矿体赋存于石英脉中,金矿化与硅化、黄铁矿化、褐铁矿化、毒砂化等围岩蚀关系密切,为喜马拉雅期的中低温热液矿床。