摘要
攀西宁南地区是我国重要的铅锌矿成矿区。对该区四大块铅锌矿床矿石、围岩微量、稀土元素特征研究表明,矿体顶底、板白云岩均具有弱的或较高的正铕异常,δEu为1.13~2.23;而铅锌矿化白云岩却具有弱的负铕异常,δEu为0.64~1.00。这一特征反映了海底喷流卤水参与了铅锌矿床的成矿作用,具有SEDEX型铅锌矿的成因特点。
The Ningnan area is an important lead-zinc mineralization area in China. The δEu values for dolomite as wallrock vary from 1.13 to 2.23, while 6Eu values for Pb-Zn-mineralized dolomite range from 0.64 to 1.00. This indicates that submarine brine took part in the mineralization of lead-zinc deposits and the deposit is a SEDEX type one.
作者
韩兆诣
梁斌
钟长洪
HAN Zhao-yi;LIANG Bin;ZHONG Chang-hong(College of Environment and Resources,Southwest University of Science and Technology,Mianyang,Sichuan 621000;Panxi Geological Party,BGEEMRSP,Xichang,Sichuan 615000)
出处
《四川地质学报》
2018年第3期394-397,共4页
Acta Geologica Sichuan
基金
中国地质调查局项目(1212010610206)资助
关键词
铅锌矿
地球化学
矿床成因
宁南地区
lead-zinc deposit
geochemistry
ore genesis
Ningnan area
