桂林理工大学学报2017，Vol.37Issue(1)：21-28,8.DOI:10.3969/j.issn.1674-9057.2017.01.003
湘南江永银铅锌矿床成矿物质来源的S、Pb同位素证据
S and Pb isotopic evidences on ore-forming material sources from the Ag-Pb-Zn ore deposit in Jiangyong, southern Hunan
摘要
Abstract
In Jiangyong,Ag-Pb-Zn deposit is the typical skarn type deposit in Qinzhou-Hangzhou Cu-Au-Pb-Zn-Ag polymetallic metallogenic belt.The deposit is located at the west of Tongshanling rock,generated in the contact zone of Tongshanling rock with strata nearby.The main metal minerals in the ore are galena,sphalerite,pyrrhotite and pyrite.The analysis results of S and Pb isotopic composition of metal sulfides of ore,show that the δ34S value varies from 0.1‰ to 3.6‰,with the average of 1.7‰ and homogeneous S isotopic composition,implying the main source of sulfur coming from the magma.The Pb isotope composition is stable.The range and average of 206Pb/204Pb,207Pb/204Pb and 208Pb/204Pb are 18.776-18.953,15.724-15.847,39.017-39.448 and 18.884,15.775,39.224,respectively,the metal sulfides of ore and the granodiorite of Tongshanling with consistent Pb isotopic composition of upper crust Pb.According to the study results,it can be concluded that the ore-forming materials of Jiangyong Ag-Pb-Zn deposit mainly come from deep magmatic hydrothermal.关键词
S、Pb同位素/银铅锌矿床/成矿物质来源/江永/湘南Key words
S and Pb isotopic/Ag-Pb-Zn deposit/ore-forming material source/Jiangyong/southern Hunan province分类
天文与地球科学引用本文复制引用
张遵遵,卢友月,付建明,吴迎春,程顺波,马丽艳..湘南江永银铅锌矿床成矿物质来源的S、Pb同位素证据[J].桂林理工大学学报,2017,37(1):21-28,8.基金项目
中国地质调查局地质矿产调查评价项目(121201009000150002 （）
121201010000150011-05) （）
国家重点研发计划“深地资源勘查开采”重点专项(2016YFC0600205) （2016YFC0600205）
