光山凉亭金矿地球化学特征及找矿标志

GEOCHEMICAL CHARACTERISTICS AND ORE GUIDE IN LIANGTING DEPOSIT,GUANGSHAN COUNTY,HENAN PROVINCE

凉亭金矿产于信阳群龟山组上部以绢云石英片岩、碳质绢云石英片岩为主的第四岩性段内，严格受东西向构造破碎带控制。破碎带蚀变强烈、种类繁多，与矿化关系密切的有硅化、绢云母化、褐铁矿化，深部有黄铁矿化等。矿化带原生晕表现为高背景值、强异常的特征。Ａｇ、Ａｓ、Ｐｂ、Ｍｏ、Ｂｉ标型元素与Ａｕ密切相关。本文着重讨论最佳指示元素在不同地层中分布规律、蚀变与矿化富集、原生异常与矿化（体）的关系等，同时建立指示元素的垂直和水平侧向分带序列。

The Liangting gold deposit occured in the fourth lithologic segent,upmost of sercite-quartz schist and carbonaceous sercite-quartz schist,controled by E-W zone of structral bro-ken. The broken zone had altered strongly with many sorts of alterations. Alterations haveolosely related with mineralization,silication,limonitication and pyritation occured in deep.The characteristics of primary hole in mineral zone is high backgroud value and strongnomaly. The typochemical elements Ag,As,Pb,Mo,Bi are closely related with Au. Thelistribution law of the best guiding elements in stratum,the relation between alteration andnineral enrichment,primary hole and mineral(body)are discussed in the paper, and the zonesequence of guiding elements in vertical and horizonal side are established.