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	Mineral chemistry of biotite in the qitianling granite associated with the furong tin deposit: tracing tin mineralization signatures
	Li HongLi1,2; Bi XianWu1; Hu RuiZhong1; Peng JianTang1; Shuang Yan1,2; Li ZhaouLi1,2; Li XiaoMin1,2; Yuan ShunDa1,2
刊名	Acta petrologica sinica
	2007-10-01
卷号	23期号:10页码:2605-2614
关键词	Qitianling granite Furong tin deposit Mineral chemistry of biotite Sn mineralization
ISSN号	1000-0569
通讯作者	Li hongli(lihongli@mails.guess.ac.cn)
英文摘要	The qitianling granite complex associated with the furong tin deposit is composed primarily of hornblende-biotite granite and hiotite granite, with the latter being intruded later than the former. electron microprobe analysis indicates that biotite from hornblende-biotite granite is annite and that biotite from biotite granite is siderophyllite. the hiotite from hornblende-biotite granite has higher mgo and tio2 contents but lower al2o3 contents than the biotite from biotite granite. the crystallization temperatures and oxygen fugacities (logf(o2)) of the biotite in hornblende-biotite granite are 680 to 740 degrees c and - 16. 00 to - 15. 31 respectively, and those of the biotite in biotite granite are 530 to 650 degrees c and - 19. 20 to - 17. 5 respectively. the temperatures and oxygen fugacities decrease gradually from hornblende-biotite granite to biotite granite. study of the nature of the hydrothermal fluids coexisting with the qitianling granite indicates that the values of log (f(h2o)/f(hf))(fluid), log(f(h2o)/f(hcl))(fluid) and log fluid of the hydrothermal fluids coexisting with hornblende-biotite granite are 4. 22 to 4. 39, 2. 78 to 3. 24 and - 1. 82 similar to to 1. 73 respectively, and those of the hydrothermal fluids coexisting with hornblende-biotite granite are 3. 27 to 3. 53, 2. 85 to 3. 22 and - 0. 75 to - 0. 22 respectively. therefore the fluids coexisting with the two types of granite are different obviously in nature, and there is a positive correlation between the contents of cl and sn in hydrothermal fluids and the crystallization differentiation index of magmas. from hornblende-biotite granite to biotite granite, hydrothermal fluids separated during magmatic crystallization became cl- and sn-rich with magmatic evolution, and the ore-forming fluids should be mainly derived from the magmatic hydrothermal fluids separated during the crystallization of biotite granitic magma.
WOS关键词	F-CL-OH ; SILICATE MELTS ; AQUEOUS FLUIDS ; SOLUBILITY ; SYSTEMS ; MO ; CU ; GEOCHEMISTRY ; EVOLUTION ; BEHAVIOR
WOS研究方向	Geology
WOS类目	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000254139000026
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2382082
专题	中国科学院大学
通讯作者	Li HongLi
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Li HongLi,Bi XianWu,Hu RuiZhong,et al. Mineral chemistry of biotite in the qitianling granite associated with the furong tin deposit: tracing tin mineralization signatures[J]. Acta petrologica sinica,2007,23(10):2605-2614.
APA	Li HongLi.,Bi XianWu.,Hu RuiZhong.,Peng JianTang.,Shuang Yan.,...&Yuan ShunDa.(2007).Mineral chemistry of biotite in the qitianling granite associated with the furong tin deposit: tracing tin mineralization signatures.Acta petrologica sinica,23(10),2605-2614.
MLA	Li HongLi,et al."Mineral chemistry of biotite in the qitianling granite associated with the furong tin deposit: tracing tin mineralization signatures".Acta petrologica sinica 23.10(2007):2605-2614.

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