Experimental study on the P wave velocity in rocks from lower crust and crust-mantle transitional zone beneath the Hannuoba

	Experimental study on the P wave velocity in rocks from lower crust and crust-mantle transitional zone beneath the Hannuoba
	Fan, QC ; Sui, JL ; Zhang, HF ; Zhai, MG ; Xie, HS
刊名	PROGRESS IN NATURAL SCIENCE
	2002-12-01
卷号	12 期号:12 页码:925-929
关键词	lower crust and crust-mantle transitional zone mafic xenolith wave velocity Hammoba
ISSN号	1002-0071
文献子类	Article
英文摘要	Cenozoic basalt-borne mafic granulite-facies plagioclase pyroxenite and eclogite-facies garnet pyroxenite xenoliths from the Hannuoba, as well as nearby Archean terrain granulites, are selected for the experimental study on the P wave velocity at high temperature and high pressure in order to reveal the present-day compositional features for the lower crust and crust-mantle transitional zone. Results show that mafic xenoliths have high V-p(7.0similar to8.0 km/s), in contrast, the Archean terrain granulites have low V-p(<7.0 km/s). High Vp mafic xenoliths can represent the present-day compositional features for the lower crust and crust-mantle transitional zone beneath the Hannuoba. This provides new evidence for the crust vertical growth and the formation of the crust-mantle transitional zone resulting from the magma underplating. Low V-p Archean granulite still remains the characteristics of the early lower crust.
WOS关键词	NORTH CHINA CRATON ; CONTINENTAL-CRUST ; SEISMIC VELOCITIES ; HIGH-TEMPERATURE ; HIGH-PRESSURE ; XENOLITHS ; GEOCHEMISTRY ; GRANULITES ; EVOLUTION ; SECTIONS
WOS研究方向	Materials Science ; Science & Technology - Other Topics
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000179511400009
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/78071]
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.State Seismol Bur, Inst Geol, Beijing 100029, Peoples R China 3.Acad Sinica, Inst Geochem, Guiyang 550002, Peoples R China
推荐引用方式 GB/T 7714	Fan, QC,Sui, JL,Zhang, HF,et al. Experimental study on the P wave velocity in rocks from lower crust and crust-mantle transitional zone beneath the Hannuoba[J]. PROGRESS IN NATURAL SCIENCE,2002,12(12):925-929.
APA	Fan, QC,Sui, JL,Zhang, HF,Zhai, MG,&Xie, HS.(2002).Experimental study on the P wave velocity in rocks from lower crust and crust-mantle transitional zone beneath the Hannuoba.PROGRESS IN NATURAL SCIENCE,12(12),925-929.
MLA	Fan, QC,et al."Experimental study on the P wave velocity in rocks from lower crust and crust-mantle transitional zone beneath the Hannuoba".PROGRESS IN NATURAL SCIENCE 12.12(2002):925-929.