• 责任者：Wang Jiasheng (State Key Laboratory of Ore Deposit Geochemistry ; Institute of Geochemistry ; Chinese Academy of Science ; Guiyang 550002 ; China) ; Wen Hanjie
• 刊名：Acta Geologica Sinica
• 出版年：2011
• 卷期：85(6)
• 关键词：金矿 ; gold ores ; 毒砂 ; arsenopyrite ; 铼—锇计时 ; Re-Os dating ; 贵州 ; Guizhou Province
• 页码：p.955-964
• 图表：3 illus., 2 tables, 67 refs.
• 分类号：1001
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

The quartz vein-type gold deposit in southeastern Guizhou Province, being one of the important parts of the Xuefeng polymetallic ore belt, has showed the potential prospect for exploration. The results show that the altered slate type arsenopyrites from the Pingqiu gold deposit yield an isochron age of (400±24) Ma, with an initial ¹⁸⁷Os/¹⁸⁸Os ratio of 1.24±0.57 (MSWD=0.96); while large quartz vein-type arsenopyrites from the Jinjing gold deposit yield an isochron age of (174±15) Ma, with an initial ¹⁸⁷Os/¹⁸⁸Os ratio of 8.04±0.45 (MSWD=1.07). It is firstly reported using sulphide Re-Os isotopic dating that at least two important gold mineralizations occurred in Calidonian and Indosinian-Yanshanian periods. In addition, the initial ¹⁸⁷Os/¹⁸⁸Os ratios also suggest that the metallogenic materials derived from the crust rock.