Chemical Zone of Nephrite in Alamas, Xinjiang, China

doi:10.1111/j.1751-3928.2010.00135.x

	Chemical Zone of Nephrite in Alamas, Xinjiang, China
	Liu, Yan 1,2; Deng, Jun 1,2; Shi, Guanghai 1,2; Lu, Taijin 3; He, Huaiyu 4; Ng, Yi-Nok 1,2; Shen, Chonghui 3; Yang, Liqiang 1,2; Wang, Qingfei 1,2
刊名	RESOURCE GEOLOGY
	2010
卷号	60 期号:3 页码:249-259
关键词	Chemical Composition Tremolite Nephrite Zonal Structure Xinjiang China
ISSN号	1344-1698
DOI	10.1111/j.1751-3928.2010.00135.x
文献子类	Article
英文摘要	The Hetian deposit, located south of the Tarim Basin in Xinjiang, China, is one of the world's largest dolomite-related nephrite deposits. In the Alamas orebody of the deposit, nephrite occurs as veins or lenses along faults or fissures of the adjacent dolomitic marble. Chemical analyses using electronic microscope probe analysis and X-ray fluorescence spectroscope were carried out on nephrite and dolomitic marble samples collected from a cross section in Alamas to investigate zonal structure of the orebody. The nephrite in Alamas is predominately composed of tremolite with minor calcite, titanite and phlogopite, and that dolomitic marble is relatively pure with a FeO content less than 0.20 wt. %. Contents of color-inducing elements, such as Fe, Mn, and Cr, increase gradually as color changes from white through white-green and then to green, resulting in the formation of color-distinctive zones. Tremolite grain size increases as color changes from white through white-green to green. The trend may be consistent with temperature changes from dolomitic marble to granodiorite, which, in turn, suggests that both change in color from white to green and variations of grain size with increasing temperature resulting in formation of the nephrite zonal structure. Both nephrite zonal structure and minor minerals, such as calcite, titanite and phlogopite found in the contact, indicate that this dolomite-related nephrite orebody is of a metasomatic origin under assumed pressure of 100-200 MPa and temperature < 550 degrees C.
WOS关键词	MYANMAR JADEITITE ; NEW-ZEALAND ; EVOLUTION ; ORIGIN ; SKARN ; DEPOSITS ; FLUIDS ; JADE ; ISOTOPE ; BELT
WOS研究方向	Geology ; Mineralogy
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000281216300004
资助机构	Major State Basic Research Program of China(2009CB421008) ; Major State Basic Research Program of China(2009CB421008) ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; "111" Project(B07011) ; "111" Project(B07011) ; GPMR200838 ; GPMR200838 ; 0736) ; 0736) ; Major State Basic Research Program of China(2009CB421008) ; Major State Basic Research Program of China(2009CB421008) ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; "111" Project(B07011) ; "111" Project(B07011) ; GPMR200838 ; GPMR200838 ; 0736) ; 0736) ; Major State Basic Research Program of China(2009CB421008) ; Major State Basic Research Program of China(2009CB421008) ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; "111" Project(B07011) ; "111" Project(B07011) ; GPMR200838 ; GPMR200838 ; 0736) ; 0736) ; Major State Basic Research Program of China(2009CB421008) ; Major State Basic Research Program of China(2009CB421008) ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for the New Century Excellent Talents in China(NCET-07-0771 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; "111" Project(B07011) ; "111" Project(B07011) ; GPMR200838 ; GPMR200838 ; 0736) ; 0736)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/73116]
专题	中国科学院地质与地球物理研究所
通讯作者	Deng, Jun
作者单位	1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.China Univ Geosci, Minist Educ, Key Lab Lithosphere Tecton & Lithoprobing Technol, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Natl Gems & Jewelry Technol Adm Ctr, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Lab Paleomagnetism & Geochronol SKL LE, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yan,Deng, Jun,Shi, Guanghai,et al. Chemical Zone of Nephrite in Alamas, Xinjiang, China[J]. RESOURCE GEOLOGY,2010,60(3):249-259.
APA	Liu, Yan.,Deng, Jun.,Shi, Guanghai.,Lu, Taijin.,He, Huaiyu.,...&Wang, Qingfei.(2010).Chemical Zone of Nephrite in Alamas, Xinjiang, China.RESOURCE GEOLOGY,60(3),249-259.
MLA	Liu, Yan,et al."Chemical Zone of Nephrite in Alamas, Xinjiang, China".RESOURCE GEOLOGY 60.3(2010):249-259.