云南景东县长发铜矿特征及矿床成因

THE GEOLOGICAL FEATURE AND GENESIS OF CHANGFA CU DEPOSIT IN JINGDONG,YUNNAN

长发铜矿位于澜沧江火山岩带上,矿区存在两种不同特征的铜矿,主要的一种为火山喷发沉积的似层状铜矿,含矿层位为上三叠统小定西组第四段(T3xd4);次要的一种为断层控制的热液充填型脉状铜矿。

Changfa Cu deposit is in Lancangjiang volcanic rock zone. There are 2 different Cu deposits. The main one is the stratoid Cu deposit of volcanic eruption sedimentation, the ore-beating bed is Upper Triassic Xiaod- ingxi Formation Member 4 （ T3xd^4） ; the secondary one is the hydrothermal filling type veined Cu deposit controlled by the fault.