兰坪县中排-兔峨铜矿床分布特征及成因分析

THE DISTRIBUTION FEATURE AND GENESIS ANALYSIS OF ZHONGPAI-TU'E CU DEPOSIT IN LANPING COUNTY

云南兰坪县中排—兔峨地区澜沧江沿岸分布着众多的铜矿床,这些铜矿床呈串珠状南北向展布,它们共同的特点是矿体均赋存于断层构造破碎带中,矿体的近矿围岩均为中生界侏罗系或白垩系之碎屑岩,单个矿体规模不大,但矿石品位较高,各矿床围岩蚀变相近,矿床成因类型相同,均为中-低温热液型矿床。

There are many Cu deposits on the bank along Lancangjiang river in Zhongpai-Tu e area in Lanping,Yunnan,which are extended as a NS string of balls.The orebodies of them are all in the fault fracture zone.And the wall rocks near orebodies are all Mesozoic Jurassic or Cretaceous clastic rocks.The single orebody isn t very large,whereas the ore grade is rather high.The alteration of wall rock of ore deposit is similar and genesis type the same,ie they all belong to the middle-low T hydrothermal deposit.