Fluid inclusions in the Denggezhuang lode gold deposit at Muping, Jiaodong Peninsula
文献类型：期刊论文
| 作者 | Hu FangFang; Fan HongRui; Yang KuiFeng; Shen Kun; Zhai MingGuo; Jin ChengWei |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2007-09-01 |
| 卷号 | 23期号:9页码:2155-2164 |
| 关键词 | fluid inclusion ore-forming fluids lode gold deposit Denggezhuang Jiaodong |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Degezhuang gold deposit is currently the second largest lode gold deposit in the Muping-Rushan gold belt of Jiaodong Peninsula, eastern China. Gold occurs mainly in pyrite- and polymetallic sulfide-quartz vein/veinlet stockworks. Fluid inclusions in the altered wallrocks and gold ores show C-O-H fluids of three main types, namely H2O-CO2, CO2-H2O +/- CH4 and aqueous inclusion. Early milk white quartz contains original H2O-CO2 inclusions and secondary CO2-H2O +/- CH4 inclusions. In the pyrite quartz vein and polymetallic-sulphide quartz vein, CO2-H2O +/- CH4 inclusions occur in isolation with large range of H2O/CO2, whereas the aqueous inclusions occur as secondary trails in microfractures cutting earlier quartz grains. On occasion CO2-H2O +/- CH4 inclusions with variable aqueous phase were co-occurrence within the same clusters, and mostly homogenize to liquid or vapor at the same temperatures, indicating immiscibility did occur at the deposit. Quartz and calcite in the late ore-forming stage developed original aqueous inclusion. Microthermometric data show the homogenization temperatures (to liquid) of the CO2-H2O inclusions in the early ore-stage fall in the range between 254 and 365 degrees C. Homogenization temperatures, obtained mainly from inclusions with relatively small CO2 +/- CH4 bubbles in the main ore-stages, range from 195 to 317 degrees C. Homogenization temperatures ( to liquid) of the aqueous inclusions in the late stage range from 156 to 219 degrees C . The initial auriferous fluids were CO2-dominant, and were gradually evolved into the increased amount of CH4 in the main ore-stages and into H2O-riched fluids with low temperature in the late stage. Fluid-wallrock interaction and fluid immiscibility possibly led to the gold precipitation. |
| WOS关键词 | ORE-FORMING FLUIDS ; EASTERN SHANDONG ; RE-EQUILIBRATION ; CHINA ; EVOLUTION ; MINERALIZATION ; SOLUBILITY ; DIFFUSION ; HYDROGEN ; PROVINCE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000251471600014 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/67302]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Hu FangFang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Shandong Inst Geol Sci, Jinan 250013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu FangFang,Fan HongRui,Yang KuiFeng,et al. Fluid inclusions in the Denggezhuang lode gold deposit at Muping, Jiaodong Peninsula[J]. ACTA PETROLOGICA SINICA,2007,23(9):2155-2164. |
| APA | Hu FangFang,Fan HongRui,Yang KuiFeng,Shen Kun,Zhai MingGuo,&Jin ChengWei.(2007).Fluid inclusions in the Denggezhuang lode gold deposit at Muping, Jiaodong Peninsula.ACTA PETROLOGICA SINICA,23(9),2155-2164. |
| MLA | Hu FangFang,et al."Fluid inclusions in the Denggezhuang lode gold deposit at Muping, Jiaodong Peninsula".ACTA PETROLOGICA SINICA 23.9(2007):2155-2164. |
入库方式： OAI收割
来源：地质与地球物理研究所
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