铀矿地质2025，Vol.41Issue(3)：424-433,10.DOI:10.3969/j.issn.1000-0658.2025.41.029
相山铀矿田西部河元背地区多金属矿化原位硫同位素特征及其指示意义
In Situ Sulfur Isotope Characteristics and Their Implications of Polymetallic Mineralization in Heyuanbei Area,Western Xiangshan Uranium Ore Field
摘要
Abstract
Abstrac:Located in the western part of Xiangshan uranium ore field,Heyuanbei area hosts substantial deep-seated polymetallic mineralization.The metallogenic characteristics,processes,mechanisms,and relationship with uranium mineralization in this polymetallic mineralization have become a focal issue in the geological research of Xiangshan orefield.This study employs SIMS in-situ sulfur isotope analysis to investigate micro-scale sulfur isotopes in pyrites from polymetallic mineralization at different depths and host rocks in Heyuanbei area.Research findings reveal that sulfur isotope compositions of polymetallic pyrites in Heyuanbei area from 3.9‰ to 6.9‰ with an average of 4.9‰,showing characteristics similar to that of volcanic rocks in volcanic basins.This indicated a magmatic sulfur source derived from volcanic rocks.Comparative analysis of pyrite sulfur isotopes from different depths and host rocks demonstrated there were significant fluid-rock interactions during polymetallic mineralization in Heyuanbei area,and the deeper mineralization with greater influence from the metamorphic basement.关键词
黄铁矿/硫化物/硫同位素/多金属矿化/相山铀矿田Key words
pyrite/sulfide/sulfur isotope/polymetallic mineralization/Xiangshan uranium ore field分类
地质学引用本文复制引用
郭建,李子颖,聂江涛,何升,司志发..相山铀矿田西部河元背地区多金属矿化原位硫同位素特征及其指示意义[J].铀矿地质,2025,41(3):424-433,10.基金项目
中国铀业青年创新基金项目"相山矿田西部和北部铀成矿关系与精细对比研究"资助. （）
