Heyetang meteorite: Petrological and geochemical characteristics of the L3 ordinary chondrite

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	Heyetang meteorite: Petrological and geochemical characteristics of the L3 ordinary chondrite
	Wang GuiQin 1; Miao BingKui 2; Lin YangTing 3
刊名	ACTA PETROLOGICA SINICA
	2015-09-01
卷号	31 期号:9 页码:2724-2736
关键词	Ordinary chondrite L3. 4 Mineralogy Petrography Geochemistry
文献子类	Article
英文摘要	Petrography, mineral chemistry and bulk composition of Heyetang meteorite falling in China have been studied. The Heyetang meteorite has typical chondritic texture, with 80vol% chondrules, 5vol% metal and 15vol% matrix. Chondrules are very sharply defined. The matrix is opaque, no recrystallization. Mineral compositions in molecular percent are: olivine, Fa(0.41-34.1) (PMD = 51); low-Ca pyroxene, Fs(1.82-27.2) (PMD = 88) , Wo(0.18-3.13) (PMD = 103). The chemical-petrographic type of Heyetang is presented an ordinary chondrite (OC) of unequilibrated 3 type. It indicates a L group feature with total content of Fe-Ni metal and troilite is as low as 5vol% in whole meteorite, and average Co is 0.62% (PMD = 20) in Kamacite. Bulk compositions suggest that the lithophile elements and siderophile elements are also consistent with the average contents in L group of OC. The subclassification of Heyetang meteorite is a L3. 4. The stage of shock metamorphism is S2, and the weathering grade is W1. Some olivine grain show zonal texture with the higher Fe contents in rim than that in core. The compositions show a large variation between chondrules, matrix and mesostasis, which indicate the different material source of these components.
WOS关键词	EARLY SOLAR-SYSTEM ; CARBONACEOUS CHONDRITE ; METAMORPHIC HISTORY ; CLASSIFICATION ; COMPONENTS ; ELEMENTS ; EARTH
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000362800400019
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62209]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位	1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.Guilin Univ Technol, Guilin 541004, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Wang GuiQin,Miao BingKui,Lin YangTing. Heyetang meteorite: Petrological and geochemical characteristics of the L3 ordinary chondrite[J]. ACTA PETROLOGICA SINICA,2015,31(9):2724-2736.
APA	Wang GuiQin,Miao BingKui,&Lin YangTing.(2015).Heyetang meteorite: Petrological and geochemical characteristics of the L3 ordinary chondrite.ACTA PETROLOGICA SINICA,31(9),2724-2736.
MLA	Wang GuiQin,et al."Heyetang meteorite: Petrological and geochemical characteristics of the L3 ordinary chondrite".ACTA PETROLOGICA SINICA 31.9(2015):2724-2736.