Magma underplating and Hannuoba present crust-mantle transitional zone composition: Xenolith petrological and geochemical evidence

doi:10.1360/04yd0007

	Magma underplating and Hannuoba present crust-mantle transitional zone composition: Xenolith petrological and geochemical evidence
	Fan, QC ; Zhang, HF ; Sui, JL ; Zhai, MG ; Sun, Q ; Li, N
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2005-08-01
卷号	48 期号:8 页码:1089-1105
关键词	Magma Underplating Xenolith Petrology Geochemistry Cust-mantle Boundary Constituent Hammoba
ISSN号	1006-9313
DOI	10.1360/04yd0007
文献子类	Article
英文摘要	On the basis of mineral assemblage, mineralogy, petrology, and major, trace elemental and isotopic geochemistry of the underplated granulite- and eclogite-facies accumulate, peridotite and pyroxenite xenoliths entrained in Hannuoba Cenozoic basalts, this work constrained the petrological constituents for the crust-mantle transitional zone, which is supported by the results of high-temperature and pressure velocity experiments on rocks and geophysics deep survey. Present lower part of lower crust is mainly composed of granulite-facies mafic accumulates (dominantly plagioclase websterite) and crust-mantle transitional zone dominantly composed of eclogite-facies pyroxenites with or without garnet and spinel lherzolites; Archaean terrain granulite is only nominally early lower crust. Magma underplating in the crust-mantle boundary led to the crustal vertical accretion and the formation of the crust-mantle transitional zone, which is a significant mechanism for the chemical adjustment of the crust-mantle boundary since the Phanerozoic.
WOS关键词	NORTH CHINA CRATON ; EASTERN CHINA ; ULTRAMAFIC XENOLITHS ; CONTINENTAL-CRUST ; VOLCANIC-ROCKS ; BOUNDARY ; BENEATH ; LITHOSPHERE ; COMPONENTS ; CHEMISTRY
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000232363900001
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/65524]
专题	中国科学院地质与地球物理研究所
通讯作者	Fan, QC
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Seismol Bur, Inst Geol, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Fan, QC,Zhang, HF,Sui, JL,et al. Magma underplating and Hannuoba present crust-mantle transitional zone composition: Xenolith petrological and geochemical evidence[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48(8):1089-1105.
APA	Fan, QC,Zhang, HF,Sui, JL,Zhai, MG,Sun, Q,&Li, N.(2005).Magma underplating and Hannuoba present crust-mantle transitional zone composition: Xenolith petrological and geochemical evidence.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48(8),1089-1105.
MLA	Fan, QC,et al."Magma underplating and Hannuoba present crust-mantle transitional zone composition: Xenolith petrological and geochemical evidence".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48.8(2005):1089-1105.