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	Fluid inclusion study of the tongshan porphyry copper deposit, heilongjiang province, china.
	Wu Guang1,2; Liu Jun1,3; Zhong Wei1; Zhu MingTian1,3; Mei Mei1; Wan Qiu4
刊名	Acta petrologica sinica
	2009-11-01
卷号	25期号:11页码:2995-3006
关键词	Fluid inclusion Fluid boiling Tongshan porphyry copper deposit Heilongjiang province Lesser hinggan range
ISSN号	1000-0569
通讯作者	Wu guang(wuguang@gig.ac.cn)
英文摘要	The large-sized tongshan porphyry copper deposit is located in the northwestern part of lesser hinggan range, which is one of the most famous porphyry copper deposits in the northeast section of central asian-mongolian-hinggan orogenic belt. its copper orebodies are mainly hosted in caledonian granodiorite and middle ordovician dubaoshan formation andesite and tuff. copper mineralization is closely associated with silicification and sericitization. in quartz veins three types of fluid inclusions are distinguished, namely aqueous two-phase, co(2)-bearing phase and daughter mineral-bearing multiphase inclusions. the evolution of the hydrothermal mineralization system includes three stages. fluid inclusions of the early stage in quartz are mainly aqueous two-phase inclusion with minor daughter mineral-bearing multiphase inclusion, their homogenization temperatures and salinities vary from 420 degrees c to >550 degrees c and from 13.72 wt% to 59.76 wt% nacl equivalent, respectively. the middle-stage fluid inclusions are mainly composed of aqueous two-phase inclusion and co(2)-bearing phase inclusion, their homogenization temperatures and salinities vary from 241 degrees c to 417 degrees c and from 2.96 wt% to 14.04 wt% nacl equivalent, respectively. the middle stage is main stage of ore-forming material enrichment, with affinities to h(2)o-co(2)-nacl fluid system. the late-stage fluid inclusions are characterized by aqueous two-phase inclusion, with homogeneous temperatures of 122 degrees c to 218 degrees c and salinities of 3.71 wt% to 15.96 wt% nacl equivalent respectively, suggesting that this stage of ore-forming fluid is significantly mixed with meteoric water. both early- and middle-stage fluids belong to immiscibility fluid, and the boiling action of ore-forming fluid is the dominant factor for metallic sulfide deposition. we conclude that the tongshan porphyry copper deposit may occur in continental arc.
WOS关键词	FREEZING-POINT DEPRESSION ; ORE-FORMING FLUID ; CU-AU DEPOSIT ; GEOLOGICAL SIGNIFICANCE ; HIGH-TEMPERATURE ; GOLD DEPOSITS ; MO DEPOSIT ; MINERALIZATION ; SALINITY ; TIBET
WOS研究方向	Geology
WOS类目	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000273455000028
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2397895
专题	中国科学院大学
通讯作者	Wu Guang
作者单位	1.Chinese Acad Sci, Key Lab Metallogen Dynam, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 4.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R China
推荐引用方式 GB/T 7714	Wu Guang,Liu Jun,Zhong Wei,et al. Fluid inclusion study of the tongshan porphyry copper deposit, heilongjiang province, china.[J]. Acta petrologica sinica,2009,25(11):2995-3006.
APA	Wu Guang,Liu Jun,Zhong Wei,Zhu MingTian,Mei Mei,&Wan Qiu.(2009).Fluid inclusion study of the tongshan porphyry copper deposit, heilongjiang province, china..Acta petrologica sinica,25(11),2995-3006.
MLA	Wu Guang,et al."Fluid inclusion study of the tongshan porphyry copper deposit, heilongjiang province, china.".Acta petrologica sinica 25.11(2009):2995-3006.

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