摘要
刘屯金矿床为含金硫化物 石英脉型 ,以其品位富、埋藏浅为特点。本文通过矿床的稳定同位素研究认为 ,矿石硫同位素组成与围岩硫相似 ,具幔源岩浆成因特征 ;矿石氢氧同位素组成显示出成矿溶液具备多成因的特点 ;锶、铅同位素组成具壳幔混合成因。以此推断矿床为岩浆热源
Liutun gold deposit,a quartz vein type deposit,is characterized by its high grade,shallow buried depth.Having studied stable isotopes of the deposit the authors conclude the following:the S isotope composition of ores is similar to that of the wall rock indicating the mantle-sourced magma origin;H and O isotope compositions of ores show the polygenetic origin of ore-forming solution;and Sr and Pb isotope compositions indicate the mantle and lower crust source.Based on the above data,the genesis of the deposit considers to be of magma-mixed hydrothermal type.
出处
《铀矿地质》
CAS
CSCD
2002年第3期155-159,179,共6页
Uranium Geology
关键词
刘屯金矿床
稳定同位素
成矿物质来源
矿床成因
Liutun gold deposit
stable isotope
source of ore-forming substance
genesis of deposit
