云南腾冲麻栗坝铅锌矿矿床成因

THE GENESIS OF MALIBA PB-ZN DEPOSIT IN TENGCHONG,YUNNAN

云南省腾冲县麻栗坝铅锌矿位于腾冲西北部。该区燕山期花岗岩浆活动剧烈,区内的铅锌矿体产于石炭系上统空树河组中段灰岩或钙质砂岩与燕山期花岗岩接触蚀变带的矽卡岩中,矿体明显受岩体接触蚀变带、地层、矽卡岩多因素控制。

Maliba Pb-Zn Deposit is in the NW part of Tengchong. In this area, Yanshanian granite mag- matism is intense. The Pb-Zn ore body is in the contact alteration skarn between Yanshanian granite and Upper C Kongshuhe Formation Middle Member limestone or calc sandstone. The ore body is controlled evidently by the con- tact alteration zone, strata and skarn, etc factors.