Ore-forming fluids, stable isotope and mineralizing age of the Hubazhuang gold deposit, Jiaodong Peninsula of eastern China
文献类型：期刊论文
| 作者 | Cai YaChun1; Fan HongRui1; Hu FangFang1; Yang KuiFeng1; Lan TingGuang1; Yu Hu2; Liu YuMing2 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2011-05-01 |
| 卷号 | 27期号:5页码:1341-1351 |
| 关键词 | Fluid inclusion Stable isotope Mineralizing age Hubazhuang gold deposit Jiaodong Peninsula |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Hubazhuang gold deposit is a typical pyrite- and polymetallic sulfide-quartz lode deposit in the Muping-Rushan gold belt of Jiaodong Peninsula and gold occurs mainly in pyrite- and polymetallic sulfide-quartz vein. Fluid inclusion studies show that in the different altered wall rocks and gold ores of different mineralization stages there are three major types of fluid inclusions: CO(2)-rich fluid inclusions, CO(2)-H(2)O fluid inclusions and aqueous fluid inclusions. CO(2)-rich fluid inclusions occur mainly in the early mineralizing stage (stage I); the main mineralizing stage (stage II) contains CO(2)-H(2)O fluid inclusions and aqueous fluid inclusions; there are only the aqueous fluid inclusions in the late mineralizing stage (stage M). Microthermometric study shows that in stage I the homogenization temperatures and salinities range respectively from 260 degrees C to 360 degrees C and 1.0% to 7.4% NaCleqv, and stage II the range is 180 degrees C to 269 degrees C and 1.7 to 13.1% NaCleqv, then stage III is 104 degrees C to 189 degrees C and 0.9% to 8.8% NaCleqv. The fluids in stage I were medium-high temperature, volatile-rich and low salinity fluid system. During stage II the fluids evolved to a CO(2)-H(2)O-NaCl fluid system with medium-low temperature, low volatile and wide range of salinity. Finally in stage El the temperature, salinity and volatile content all decreased. The study of hydrogen and oxygen stable isotope indicates that in stage I the mineralizing fluids were mainly magmatic water, but during stage 11 the mineralizing fluids were mixed fluids which originated mainly from meteoric water. Sulfur isotope of the main mineralizing stage reveals that ore-forming materials may mainly come from the wall rocks which were leached by the meteoric water. Temperature decline and fluid immiscibility are the main reason of the gold precipitation. Rb-Sr isochron of sericite in altered rocks shows that the mineralizing age of Hubazhuang gold deposit is 126.5 +/- 5.6Ma. |
| WOS关键词 | RB-SR ; INCLUSIONS ; SHANDONG ; PROVINCE ; METALLOGENY ; EVOLUTION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000292712600009 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74736]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Cai YaChun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Shandong Jinzhou Min Ind Grp, Rushan 264501, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai YaChun,Fan HongRui,Hu FangFang,et al. Ore-forming fluids, stable isotope and mineralizing age of the Hubazhuang gold deposit, Jiaodong Peninsula of eastern China[J]. ACTA PETROLOGICA SINICA,2011,27(5):1341-1351. |
| APA | Cai YaChun.,Fan HongRui.,Hu FangFang.,Yang KuiFeng.,Lan TingGuang.,...&Liu YuMing.(2011).Ore-forming fluids, stable isotope and mineralizing age of the Hubazhuang gold deposit, Jiaodong Peninsula of eastern China.ACTA PETROLOGICA SINICA,27(5),1341-1351. |
| MLA | Cai YaChun,et al."Ore-forming fluids, stable isotope and mineralizing age of the Hubazhuang gold deposit, Jiaodong Peninsula of eastern China".ACTA PETROLOGICA SINICA 27.5(2011):1341-1351. |
入库方式： OAI收割
来源：地质与地球物理研究所
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