Geochemistry and origin of metal, olivine clasts, and matrix in the Dong Ujimqin Qi mesosiderite

	Geochemistry and origin of metal, olivine clasts, and matrix in the Dong Ujimqin Qi mesosiderite
	Kong, Ping 1,2; Su, Wen 1; Li, Xianhua 1; Spettel, Bernhard ; Palme, Herbert 3; Tao, Kejie 1
刊名	METEORITICS & PLANETARY SCIENCE
	2008-03-01
卷号	43 期号:3 页码:451-460
ISSN号	1086-9379
文献子类	Article
英文摘要	The Dong Ujimqin Qi mesosiderite is the first recorded fall of a stony-iron meteorite in China. According to silicate textures and metal composition, this meteorite is classified as a member of subgroup 1B. Instrumental neutron activation analyses (INAA) of metals show that the matrix metal has lower concentrations of Os, Ir, Re, and Pt, but higher concentrations of Ni and Au than the 7.5 cm metal nodule present in the meteorite. We attribute these compositional differences to fractional crystallization of molten metal. Studies of olivine clasts show that FeO contents are uniform in individual olivine crystals but are variable for different olivine clasts. Although concentrations of rare earth elements (REEs) change within olivine clasts, they all exhibit a vee-shaped pattern relative to Cl chondrites. The relatively high concentrations of REEs in olivine and the shape of REE patterns require a liquid high in REEs and especially in light REEs. As Such a liquid was absent from the region where basaltic and gabbroic clasts formed, rnesosiderite olivine must have formed in a part of the differentiated asteroid that is different from the location where other rnesosiderite silicate clasts formed.
WOS关键词	IRON-METEORITES ; ORDINARY CHONDRITES ; SIDEROPHILE ELEMENTS ; PARENT BODY ; HISTORY ; PETROLOGY ; NODULES ; IIIAB ; CORONAS ; PHASES
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000258566500002
资助机构	National Science Foundation of China(40673054) ; National Science Foundation of China(40673054) ; National Science Foundation of China(40673054) ; National Science Foundation of China(40673054) ; National Science Foundation of China(40673054) ; National Science Foundation of China(40673054) ; National Science Foundation of China(40673054) ; National Science Foundation of China(40673054)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70192]
专题	中国科学院地质与地球物理研究所
通讯作者	Kong, Ping
作者单位	1.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China 3.Univ Cologne, Inst Geol & Mineral, D-50674 Cologne, Germany
推荐引用方式 GB/T 7714	Kong, Ping,Su, Wen,Li, Xianhua,et al. Geochemistry and origin of metal, olivine clasts, and matrix in the Dong Ujimqin Qi mesosiderite[J]. METEORITICS & PLANETARY SCIENCE,2008,43(3):451-460.
APA	Kong, Ping,Su, Wen,Li, Xianhua,Spettel, Bernhard,Palme, Herbert,&Tao, Kejie.(2008).Geochemistry and origin of metal, olivine clasts, and matrix in the Dong Ujimqin Qi mesosiderite.METEORITICS & PLANETARY SCIENCE,43(3),451-460.
MLA	Kong, Ping,et al."Geochemistry and origin of metal, olivine clasts, and matrix in the Dong Ujimqin Qi mesosiderite".METEORITICS & PLANETARY SCIENCE 43.3(2008):451-460.