礼社江中上游微粒金矿矿田地质及控矿因素

THE OREFIELD GEOLOGY AND ORE CONTORL FACTOR OF MICROGRAINED GOLD DEPOSIT IN MIDDLE-UPPER REACHES OF LISHE RIVER AREA

礼社江中上游微粒型金矿田,以其特有的地质特征和成矿规律,于红河大断裂东侧、依皮堵复式破背斜上形成一系列不同规模、以金矿为主的矿床(点);即将勘查或评价的一系列Au,As,Sb,Hg元素组合异常;不断发现的不同规模的金矿床(点)。使该矿田成为一个非常重要的黄金后备资源及生产基地。本文运用新的专业理论从矿田地质特征、控矿因素、找矿标志等方面给予论述,为在本区进一步发展提供思路。

A series of deposits mainly of Au ore in different scale are formed in the Yipidu broken anticlinorium east of Honghe great fault with special geological characteristics and metallogenetic rule of micrograined gold orefield in the middleupper reaches of Lishe river area.This ordfield will be a production basis with very important gold reserves because of the Au,As,Sb,Hg assemblage anomaly and Au deposit of different scale discovered continously.The geological characteristics,ore control factors and prospecting indicators of the ordfield are discussed with the new professional theory in this paper.