哈密玉峰石英斑岩体特征及“三位一体”模型初建  

Characteristics of Hami Yufeng Quartz Porphyry and Preliminary Establishment of "Trinity" Model

作　　者：孙海微 SUN Hai-wei(No.704 Geological Party,Xinjiang Geo-Exploration Bureau for Nonferrous Metals,Hami 839000,China)

机构地区：[1]新疆维吾尔自治区有色地质勘查局七〇四队,新疆哈密839000

出　　处：《河北地质大学学报》2020年第5期38-43,共6页Journal of Hebei Geo University

基　　金：新疆维吾尔自治区地质勘查基金项目“新疆哈密市玉峰金矿预查”(T18-3-XJ025)。

摘　　要：玉峰金矿床位于新疆哈密市,该矿床主要矿体的产出严格受石英斑岩体控制,在野外观察、岩矿鉴定、地球化学土壤测量、岩石全分析等综合研究的基础上,总结了石英斑岩体的岩石学特征、化探特征、主要元素特征,认为玉峰金矿含金石英斑岩体具有高硅、富钾、过铝、低镁、贫钠的特征,化探综合异常元素组合为Ag、Au、Bi、Cu、Pb、Zn、Sn、Sb。初步建立了玉峰陆相火山岩型金矿床"三位一体"找矿预测模型及找矿标志,通过分析认为石英斑岩体北西端及深部找矿潜力较大。Yufeng gold deposit is located in Hami City,Xinjiang.The main ore bodies of the deposit are strictly controlled by quartz porphyry.Based on the comprehensive study of field observation,rock and mineral identification,geochemical soil measurement,and complete rock analysis,the petrological characteristics,geochemical exploration characteristics and main element characteristics of quartz porphyry are summarized.It is considered that the gold bearing quartz porphyry of Yufeng gold deposit has high silicon and rich potassium,peraluminium,low magnesium and poor sodium.The comprehensive abnormal element combination of geochemical exploration is AG,Au,Bi,Cu,Pb,Zn,Sn and Sb.The"three in one"prospecting prediction model and prospecting criteria of Yufeng continental volcanic rock type gold deposit have been preliminarily established.Through analysis,it is considered that the north-west end and deep part of quartz porphyry body have great prospecting potential.

关 键 词：石英斑岩 成矿远景 预测模型 

分 类 号：P612[天文地球—矿床学]