REE composition in scheelite and scheelite Sm-Nd dating for the Xuebaoding W-Sn-Be deposit in Sichuan

doi:10.1007/s11434-007-0355-1

	REE composition in scheelite and scheelite Sm-Nd dating for the Xuebaoding W-Sn-Be deposit in Sichuan
	Liu Yan ; Deng Jun ; Li ChaoFeng ; Shi GuangHai ; Zheng Aili
刊名	CHINESE SCIENCE BULLETIN
	2007-09-01
卷号	52 期号:18 页码:2543-2550
关键词	scheelites REE Sm-Nd isotope dating Xuebaoding deposit Sichuan province
ISSN号	1001-6538
DOI	10.1007/s11434-007-0355-1
文献子类	Article
英文摘要	The scheelite with large size and euhedral shape from Xuebaoding, Sichuan Province is an ideal mineral to study REE patterns and Sm-Nd dating of non-gold deposits. The scheelite has diameters of 1-10 cm and colors of pale beige to deep orange. Most of these scheelites occur in association with beryl, cassiterite and muscovite. The rare earth elements indicate that scheelite samples from Xuebaoding W-Sn-Be deposits contain high concentrations of rare earth elements with total SREE+Y contents in the range of 369-1725 mu g . g(-1) and nearly all of these scheelite samples are enriched in LREE and depleted in HREE and have negative Eu anomalies. The REE patterns of the scheelites are similar to those of A-type granite with obvious tetrad effect, similar to that of type II scheelites. Based on reported fluid inclusion studies, the mineralizing-fluid of the Xuebaoding W-Sn-Be deposit indicates low Na activity. The REE patterns of the scheelite are probably controlled by partition coefficient in hydrothermal fluid. In the Sm-147/Nd-144-Nd-143/Nd-144 diagram, the scheelites show a linear array corresponding to an isochron age of 182.0 +/- 9.2 Ma ( MSWD = 0.52). The Sm-Nd age represents the formation age of the scheelite and can indicate that the W, Sn and Be mineralization at Xuebaoding took place in the Early Yanshanian. The Sm-Nd dating result is important for the study of the multi-metal resources in western Sichuan Province.
WOS关键词	ARCHEAN GOLD DEPOSITS ; A-TYPE GRANITES ; WESTERN-AUSTRALIA ; YUNNAN PROVINCE ; TRACE-ELEMENTS ; SR ISOTOPE ; ICP-MS ; RB-SR ; CHINA ; MINERALIZATION
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000249915500013
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/68646]
专题	中国科学院地质与地球物理研究所
通讯作者	Shi GuangHai
作者单位	1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu Yan,Deng Jun,Li ChaoFeng,et al. REE composition in scheelite and scheelite Sm-Nd dating for the Xuebaoding W-Sn-Be deposit in Sichuan[J]. CHINESE SCIENCE BULLETIN,2007,52(18):2543-2550.
APA	Liu Yan,Deng Jun,Li ChaoFeng,Shi GuangHai,&Zheng Aili.(2007).REE composition in scheelite and scheelite Sm-Nd dating for the Xuebaoding W-Sn-Be deposit in Sichuan.CHINESE SCIENCE BULLETIN,52(18),2543-2550.
MLA	Liu Yan,et al."REE composition in scheelite and scheelite Sm-Nd dating for the Xuebaoding W-Sn-Be deposit in Sichuan".CHINESE SCIENCE BULLETIN 52.18(2007):2543-2550.