矿床地质2026，Vol.45Issue(2)：436-456,21.DOI:10.16111/j.0258-7106.2026.02.013
西藏哲古-雪莎一带锑金等多元素地球化学特征及靶区优选
Geochemical characteristics and target generation of antimony-gold and other elements in Zhegu-Xuesha area,Xizang
摘要
Abstract
The Tibetan Tethyan Himalayan Tectonic Belt boasts superior metallogenic geological conditions and stands as a significant Sb-Au enrichment belt in China.To facilitate prospecting breakthroughs for Au,Sb and other asso-ciated minerals in southern Xizang,this study focuses on the Zhegu-Xuesha area in the eastern segment of this tectonic belt.Based on large-scale geochemical exploration data,analyses of elemental geochemical parameters and element association characteristics were conducted.The subarea-multi background method was employed to determine the anomaly threshold,and regional prospecting prediction was performed with geochemical anomaly characteristics as the core basis.The results indicate that Au,As,Sb,Pb,Zn,and Ag are the primary ore-forming elements or associated elements in the study area.These elements constitute three independent and partially inter-related metallogenic systems,namely the Au-As metallogenic system,Sb-Ag metallogenic system,and Pb-Zn-Ag polymetallic metallogenic system.The subarea-multi background method effectively enhances the prediction ac-curacy.Based on the elemental geochemical anomaly characteristics,4 high prospective areas were delineated in the region,which were further refined into 5 Class A target areas,3 Class B target areas,and 5 Class C target ar-eas.Additionally,4 key prospecting targets were selected for in-depth anomaly analysis.The research findings provide a reliable scientific basis for regional mineral prospecting and exploration program planning searching for Sb,Au,and other polymetallic deposits in the study area.关键词
地球化学特征/锑金多金属/靶区优选/哲古-雪莎/西藏Key words
geochemical characteristics/Sb-Au polymetallic deposits/target generation/Zhegu-Xuesha/Xizang分类
天文与地球科学引用本文复制引用
韩聪,黄勇,张毅明,张晓飞,张方方,范勇刚,夏良智,杨建峰,赵旭婷..西藏哲古-雪莎一带锑金等多元素地球化学特征及靶区优选[J].矿床地质,2026,45(2):436-456,21.基金项目
本文得到中国地质调查局项目(编号:DD202402069、DD20240206901、DD20240206905、DD20240207011)、自然资源部新一轮找矿突破科技支撑项目(编号:ZKKJ202427-03-02、ZKKJ202427-03-04)、西藏科技计划项目(编号:XZ202401YD0006-07)、国家科技重大专项(编号:2025ZD1006304)和甘肃省自然资源厅科技创新项目(编号:202425)联合资助 （编号:DD202402069、DD20240206901、DD20240206905、DD20240207011）
