Ore-Forming Fluids and Genesis of Liucun Gold Deposit in Northwestern Jiaodong Peninsula
详细信息
- 责任者：Jiang Xiaohui (Key Laboratory of Mineral Resources ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Fan Hongrui
- 刊名：Mineral Deposits
- 出版年：2011
- 卷期：30(3)
- 关键词：金矿 ; gold ores ; 成矿流体 ; ore-forming fluids ; 山东 ; Shandong Province
- 页码：p.511-521
- 图表：9 illus., 4 tables, 35 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
Located in the south of the Zhaoyuan-Laizhou gold ore belt of Jiaodong Peninsula, the Liucun gold deposit is a small typical quartz vein type gold deposit. Petrographic and fluid inclusion studies indicate that gold-bearing fluids of the Liucun gold deposit are characterized by H2O-CO2-NaCl with homogenization temperature being 161～354 ℃ and pressure conditions being 80～310 MPa at the main gold mineralization stage. The Rb-Sr data of pyrites yield an isochron age of (151.0±2.7) Ma, which is much earlier than the age of most gold deposits in Jiaodong peninsula ((120±10) Ma). There might have exist a small size gold mineralization in the Jiaodong gold province during 150 Ma.