招远大尹格庄金矿床微量元素特征及其意义

The Trace Element Characteristics of Darengezhuang Gold Deposit and Their Geological Significance

该文以山东招远大尹格庄金矿床中微量元素为研究对象,通过对矿床围岩、矿石等微量元素的研究,表明大尹格庄金矿围岩中微量元素以富含Bi,Au,Pb,W,Ag,Sn为特点,矿体和矿化体中元素组合为Au,Ag,As,Sb,Hg,B,Cu,Zn,Bi,Mo,Mn,Co,Ni,W。在5个成矿阶段中,第二阶段与第三阶段微量元素的富集程度较明显,表现为Au,Ag,As,Co,Bi,Cu,Pb,Zn等的富集,成矿元素可分为2个分带序列,主成矿元素为Au-Ag-Cu-Pb-Zn-Bi组合、头晕元素As-Sb-Hg组合和尾晕元素Co-Ni组合。

Taking the trace element of Darengezhuang gold deposit as the research object,characteristics of trace elements in gold ores and country rocks have been analyzed in this paper.It is indicated that the country rocks are characterized by the enrichment of Bi,Au,Pb,W,Ag and Sn,and the element combinations of gold ores are mainly composed of Au,Ag,As,Sb,Hg,B,Cu,Zn,Bi,Mo,Mn,Co,Ni and W.Among five metallogenetic process evolution stages,the second stage and the third stage are characterized by the obvious enrichment of Au, Ag,As,Co,Bi,Cu,Pb and Zn.The ore forming elements combination can be divided into two zoning se-quences.Major ore forming elements are the combination of Au Ag Cu Pb Zn Bi）,initial halo ore forming elements combination of As Sb Hg and late halo combination of As Sb Hg.