Geochemical characteristics and genesis of the granitic gneisses from;the southeastern Dabie Mountains

	Geochemical characteristics and genesis of the granitic gneisses from;the southeastern Dabie Mountains
	Xue, HM 4; Dong, SW ; Liu, XC
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2001
卷号	75 期号:2 页码:175-183
关键词	granitic gneiss A-type granite UHP complex Proterozoic Dabie Mountains
ISSN号	1000-9515
英文摘要	The granitic gneisses from the ultrahigh-pressure (UHP) metamorphic terrain of the southeastern Dabie Mountains encompass two types: monzonitic granitic gneiss and alkali-feldspar granitic gneiss, which are characterized by rich alkalis, poor CaO, high FeO/MgO, particularly high Ba, Rb, Th, Ta, REE (except Eu), Ga, Nb and Zn, and low Sr, Eu, Cr, Co and Ni. The gneisses, particularly the alkali-feldspar granitic gneiss, have typical chemical characteristics of A-type granites. They resulted from partial melting of crustal materials existing in the rift zone along the northern margin of the South China block during the Neoproterozoic. These gneisses might not have undergone UHP metamorphism during the late Triassic, but were involved into UHP rocks by the tectonic mixing process and kept the exhumation message of the UHP rocks from the middle and upper crust.
学科主题	变质岩岩石学
WOS关键词	ULTRAHIGH-PRESSURE METAMORPHISM ; CENTRAL CHINA ; ROCKS ; COESITE ; SHAN ; GEOCHRONOLOGY ; OROGEN ; PETROGENESIS ; EXHUMATION ; ECLOGITES
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC CHINA
WOS记录号	WOS:000169598600007
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37490]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Beijing 100037, Peoples R China. 2.Nanjing Inst Geol & Mineral Resources, Nanjing 210016, Peoples R China. 3.Inst Geomech, Beijing 100081, Peoples R China. 4.中国地质科学院（院部）
推荐引用方式 GB/T 7714	Xue, HM,Dong, SW,Liu, XC. Geochemical characteristics and genesis of the granitic gneisses from;the southeastern Dabie Mountains[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2001,75(2):175-183.
APA	Xue, HM,Dong, SW,&Liu, XC.(2001).Geochemical characteristics and genesis of the granitic gneisses from;the southeastern Dabie Mountains.ACTA GEOLOGICA SINICA-ENGLISH EDITION,75(2),175-183.
MLA	Xue, HM,et al."Geochemical characteristics and genesis of the granitic gneisses from;the southeastern Dabie Mountains".ACTA GEOLOGICA SINICA-ENGLISH EDITION 75.2(2001):175-183.