摘要
下蒿坪金矿K2矿体受店房隐爆角砾岩边缘的环状构造控制,矿床具有明显的岩浆热液特征。对矿体的原生晕特征分析表明,Au、Ag、Cu、Pb、Zn相互之间有较好的相关性,W、Mo与其他元素的相关性均较差,因子分析反映出成矿过程具有多期次叠加特点。计算得到矿体的原生晕轴向分带序列由上到下为Mo-Au-Cu-As-Bi-W-Ag-Sb-Zn-Pb,出现头晕和尾晕元素叠加的"反向分带"特征。研究认为K2矿体具有上金下银的分带模式,预测在478 m标高以下具有较好的银成矿潜力。
The K2 oreboby in Xiahaoping gold deposit is controlled by the ring-shaped structure of the edge of Dianfang cryptoexplosion breccia,Xiahaoping K2 deposit behaves the features of magmatic hydrothermal solution.The primary halo feature research of the orebody shows that Au,Ag,Cu,Pb,Zn has good correlation with each other,but the correlation of W,Mo and other elements is poor.Factor analysis reflects characteristics of superposition of multiple metallogenetic superimposition during the ore-forming process.It is calculated that axial element zoning of the primary halos of this deposit is Mo-Au-Cu-As-Bi-W-Ag-Sb-Zn-Pb from top to bottom,there are characteristics of reversed axial zonality with the element of front halo and tail halo superimposed.Results show that the zoning pattern of this K2 orebody is that silver locates under gold,therefore,we predict that it has good metallogenic potential of silver under 478 m elevation.
出处
《黄金科学技术》
CSCD
2016年第1期35-40,共6页
Gold Science and Technology
基金
中国地质调查局科研项目"河南省熊耳山-外方山金多金属矿整装勘查区关键基础地质研究"(编号:12120114035401)
河南省"两权"价款项目科研基金"嵩县东湾-槐树坪金矿区地球化学特征及成矿预测"(编号:2014-17)联合资助
关键词
原生晕
深部预测
成矿潜力
下蒿坪金矿
河南省
primary halo
deep prediction
metallogenic potential
Xihaoping gold deposit
Henan Province
