Characteristics of Decrepitation Curves of Fluid Inclusions in Rushan Gold Deposit, Shandong Province
详细信息
- 责任者：Cheng Wei (Shandong Institute and Laboratory of Geological Sciences ; Jinan 250013 ; China) ; Shen Kun
- 刊名：Mineral Deposits
- 出版年：2011
- 卷期：30(4)
- 关键词：金矿 ; gold ores ; 流体包裹体 ; fluid inclusions ; 爆裂法 ; decrepitation methods ; 山东 ; Shandong Province
- 页码：p.699-710
- 图表：10 illus., 27 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
Based on sampling and decrepitation analysis of granitic and altered wall rocks and auriferous quartz veins from the Rushan quartz vein type gold deposit, the authors reveal that the granitic wall rock has high decrepitation intensity (frequency), pronounced decrapitation peak with normal distribution in the temperature interval of ca.360～450 ℃ and a sharp peak at 573 ℃ which is the phase transition temperature of α/β-quartz, whereas the auriferous quartz veins exhibit lower decrepitation frequency, lower decrepitation peak from 360 to 450 ℃ and weak peak at 573 ℃; consequently, negative anomalies of vapor aureole occur in/around the ore bodies.