云南鹤庆北衙金多金属矿床成矿地质条件  

Ore-forming geological condition for Beiya gold polymetallic deposit in Heqing,Yunnan province

作　　者：李志钧 

机构地区：[1]云南鹤庆北衙矿业有限公司,云南鹤庆671507

出　　处：《矿产与地质》2010年第3期198-203,共6页Mineral Resources and Geology

摘　　要：鹤庆北衙金多金属矿床位于德格—中甸陆块、巴颜喀拉—扬子陆块与昌都—思茅陆块三个Ⅰ级构造单元结合部东侧。成矿作用主要受北衙组灰岩、喜山期富碱斑岩、次级构造控制,由岩浆高、中、低温热液交代、蚀变、充填形成金矿床。岩体的接触带、蚀变斑岩体内的构造破碎带、围岩内的层间滑脱带和陡倾斜断裂是重要的赋矿场所。Beiya gold polymetallic ore deposit in Heqing county of Yunnan is located at east side of the joining part of threeⅠclass tectonic units,namely Dege-Zhongdian landmass,Bayankela-Yangtze landmass and Changdu-Simao landmass.The mineralization is mainly controlled by Beiya group limestone,alcali-rich porphyry of Himalayan period and second-grade tectonics,and gold deposits was formed through replacement,alteration and filling of high to mesothermal and epithermal fluid.The contact zone with magmata body,crush belts in altered porphyry and interlayer detachment zones and steep fractures are important ore bearing places.

关 键 词：金多金属矿床 成矿地质条件 控矿条件 鹤庆北衙 云南 

分 类 号：P618.51[天文地球—矿床学]