Geology, fluid inclusion and stable isotope study of the Yueyang   Ag-Au-Cu deposit, Zijinshan orefield, Fujian Province, China

doi:10.1016/j.oregeorev.2017.02.023

CORC > 北京大学 > 地球与空间科学学院

	Geology, fluid inclusion and stable isotope study of the Yueyang Ag-Au-Cu deposit, Zijinshan orefield, Fujian Province, China
	Zhong, Jun ; Chen, Yan-Jing ; Qi, Jin-Ping ; Chen, Jing ; Dai, Mao-Chang ; Li, Jing
刊名	ORE GEOLOGY REVIEWS
	2017
关键词	Fluid inclusion Stable isotope geochemistry Yueyang Ag-Au-Cu deposit Low-sulfidation Zijinshan orefield Fujian Province, China HYDROTHERMAL ORE-DEPOSITS OHAAKI GEOTHERMAL SYSTEM GOLD-SILVER DEPOSIT U-PB AGES EPITHERMAL DEPOSITS GEOCHEMICAL CHARACTERISTICS SULFIDE COMPLEXES HYDROGEN ISOTOPE SOUTH CHINA NEW-ZEALAND
DOI	10.1016/j.oregeorev.2017.02.023
英文摘要	The large Yueyang Ag-Au-Cu deposit is commonly regarded as a low-sulfidation epithermal deposit in the Zijinshan orefield, Fujian Province, southeastern China. The Ag-Ag-Cu orebodies hosted in the Zijinshan granitic batholith are mainly stratoid and lens in shape, and controlled by a series of NW-trending listric faults with shallow dip angles. Four mineralization stages are recognized on the basis of mineral assemblage, ore fabrics, and crosscutting relationships of the ore veins, namely: pre-ore (pyrite + sericite + quartz chlorite), main Cu (chalcopyrite + pyrite + sericite + quartz +/- bomite), main Ag-Au (Ag and Au minerals + pyrite + quartz + adularia +/- calcite +/- apatite +/- chalcopyrite +/- galena +/- sphalerite) and post-ore (quartz +/- chalcedony +/- calcite) stages. Fluid inclusions (Fis) in the deposit include aqueous liquid-rich (WL-), aqueous vapor-rich (WV-), and minor carbonic (C-) and daughter mineral-bearing (S-) type ones. WL-subtype is the main inclusion type in the Yueyang deposit, accounting for more than 90% in proportion in each stage. Minor WV-subtype inclusions occur in both the main Cu and Ag stages, while the C type and S-type ones are only observed in the main Cu stage. Fluid inclusion and H-O isotope study indicated that the ore-forming fluid of the main Cu stage is primarily magmatic vapor, which further underwent fluid boiling and mixing with meteoric water, while the ore-forming fluid of the main Ag stage is meteoric water-dominated, and the precipitation of silver and gold was mainly resulted from fluid boiling and the precipitation of other sulfides. On the basis of the aforementioned geological, fluid inclusion and stable isotope studies, we proposed a two-stage model for the Yueyang deposit, including a magmatic vapor-related porphyry type Cu mineralization and meteoric water-related low-sulfidation epithermal Ag-Au-Cu mineralization, although the porphyry Cu mineralization is very limited in scale. The mineralization and exhumation depths of the Yueyang deposit are estimated to be 448 527 m and 18 97 m, respectively. By comparison with the exhumation depths of other deposits in the Zijinshan orefield, it is suggested that more epithermal deposits could be found in the southwest of the orefield due to less uplift and exhumation therein. (C) 2017 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [41502083]; Ministry of Science and Technology of China [2009BAB43B04]; Zijin Mining Co. Ltd.; SCI(E); ARTICLE; 254-270; 86
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473034]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhong, Jun,Chen, Yan-Jing,Qi, Jin-Ping,et al. Geology, fluid inclusion and stable isotope study of the Yueyang Ag-Au-Cu deposit, Zijinshan orefield, Fujian Province, China[J]. ORE GEOLOGY REVIEWS,2017.
APA	Zhong, Jun,Chen, Yan-Jing,Qi, Jin-Ping,Chen, Jing,Dai, Mao-Chang,&Li, Jing.(2017).Geology, fluid inclusion and stable isotope study of the Yueyang Ag-Au-Cu deposit, Zijinshan orefield, Fujian Province, China.ORE GEOLOGY REVIEWS.
MLA	Zhong, Jun,et al."Geology, fluid inclusion and stable isotope study of the Yueyang Ag-Au-Cu deposit, Zijinshan orefield, Fujian Province, China".ORE GEOLOGY REVIEWS (2017).