• 责任者：Yang Yongchun (School of Earth Science and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Liu Jiajun
• 刊名：Geology in China
• 出版年：2011
• 卷期：38(3)
• 关键词：金矿 ; gold ores ; 砷 ; arsenic ; 赋存形式 ; presence modes ; 秦岭 ; Qinling Mountains
• 页码：p.701-715
• 图表：10 illus., 4 tables, 35 refs.
• 分类号：1001
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

Located in Zhen’an-Xunyang basin of southern oft-com:office:smarttags" />Qinling Mountains, the Jinlongshan gold deposit is a superlarge Carlin-type disseminated gold deposit discovered in the 1980’s.The ore deposit occurs in Upper Devonian and Lower Carboniferous clastic and carbonate strata composed of calcareous siltstone, silty shale, silty limestone and argillaceous limestone intercalated with flyschoid formation. The results show that As of low content is likely to be concentrated in pyrite, and As in pyrite is stable. The dissolution of ferruginous limestone in the host rocks, the sulfidation of the dissolved iron by H₂S, and the exsolution of partial metastable auriferous arsenian pyrite may provide favorable conditions for gold precipitation in the Jinlongshan gold deposit.