Fluid inclusions in the Sanjia lode gold deposit, Jiaodong Peninsula of eastern China

	Fluid inclusions in the Sanjia lode gold deposit, Jiaodong Peninsula of eastern China
	Hu FangFang 1; Fan HongRui 1; Yu Hu 2; Liu ZhengHao 2; Song LinFu 2; Jin ChengWei 1
刊名	ACTA PETROLOGICA SINICA
	2008-09-01
卷号	24 期号:9 页码:2037-2044
关键词	Fluid inclusion Ore-forming fluids Lode gold deposit Sanjia Jiaodong
ISSN号	1000-0569
文献子类	Article
英文摘要	Sanjia gold deposit is a typical 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 CO(2)-H(2)O-NaCl fluids of three main types, namely H(2)O-CO(2), CO(2)-rich and aqueous inclusion. Early milk white quartz contains original H(2)O-CO(2) inclusions. In the pyrite quartz vein and polymetallic-sulphide quartz vein, CO(2)-rich inclusions occur in isolation or cluster with large range of H(2)O/CO(2), whereas the aqueous inclusions occur as secondary trails in microfractures cutting earlier quartz grains. On occasion CO(2)-rich 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 of the CO(2)-H(2)O inclusions in the early ore-stage fall in the range between 280 and 416 degrees C. Homogenization temperatures, obtained mainly from CO(2)-rich inclusions with relatively small CO(2) bubbles in the main ore-stages, range from 210 to 330 degrees C. Homogenization temperatures of H(2)O aqueous inclusions at same stage with CO(2)-rich inclusions are between 253 and 377 degrees C, Homogenization temperatures (to liquid) of the aqueous inclusions in the late stage range from 176 to 207 degrees C. Fluid immiscibility caused by change of mineralizing stress possibly led to the gold precipitation at Sanjia.
WOS关键词	ORE-FORMING FLUIDS ; NORTH CHINA ; MINERALIZATION ; EVOLUTION ; ZIRCON ; METALLOGENY ; PROVINCE ; CRATON ; ORIGIN ; BELT
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000261153700012
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/69928]
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 Jinzhou Min Ind Grp, Rushan 264501, Peoples R China
推荐引用方式 GB/T 7714	Hu FangFang,Fan HongRui,Yu Hu,et al. Fluid inclusions in the Sanjia lode gold deposit, Jiaodong Peninsula of eastern China[J]. ACTA PETROLOGICA SINICA,2008,24(9):2037-2044.
APA	Hu FangFang,Fan HongRui,Yu Hu,Liu ZhengHao,Song LinFu,&Jin ChengWei.(2008).Fluid inclusions in the Sanjia lode gold deposit, Jiaodong Peninsula of eastern China.ACTA PETROLOGICA SINICA,24(9),2037-2044.
MLA	Hu FangFang,et al."Fluid inclusions in the Sanjia lode gold deposit, Jiaodong Peninsula of eastern China".ACTA PETROLOGICA SINICA 24.9(2008):2037-2044.