Geochronology and petrogenesis of granitic rocks in Gangdese batholith, southern Tibet

doi:10.1007/s11430-009-0131-y

	Geochronology and petrogenesis of granitic rocks in Gangdese batholith, southern Tibet
	Ji WeiQiang 1,2; Wu FuYuan 1; Liu ChuanZhou 1; Chung SunLin 3
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2009-09-01
卷号	52 期号:9 页码:1240-1261
关键词	Tibet Gangdese batholith granitic rock geochronology petrogenesis
ISSN号	1006-9313
DOI	10.1007/s11430-009-0131-y
文献子类	Review
英文摘要	Based on petrological and geochemical characteristics such as rock assemblage, petrogeochemistry, Sr-Nd isotope, zircon U-Pb age, and Hf isotope, we studied geochronological framework, magma types, source characters, and petrogenesis of different stages of magmatism of the granitic rocks from the Gangdese batholith in southern Tibet. The magmatic activities of the Gangdese batholith can be divided into three stages. The Mesozoic magmatism, induced by northern subduction of Neotethyan slab, was continuously developed, with two peak periods of Late Jurassic and Early Cretaceous. The Paleocene-Eocene magmatism was the most intensive, and resulted from a complex progress of Neotethyan oceanic slab, including subduction, rollback, and subsequent breakoff. And the Oligocene-Miocene magmatism was attributed to the convective removal of thickened lithosphere in an east-west extension setting after India-Asia collision. Isotopically, zircons from these granitic rocks are characterized by positive E > (Hf)(t) values, suggesting that the magmatic source of the Gangdese batholith might be an arc terrane, which was accreted to the southern margin of Asia during Late Paleozoic. Therefore, the chronological framework and Hf isotopic characteristics of the Gangdese batholith are distinct from the granitic rocks in adjacent areas, which can be served as a powerful tracer in studying source-to-sink relation of sediments during the uplift and erosion of Tibetan Plateau.
WOS关键词	INDIA-ASIA COLLISION ; ZIRCON U-PB ; TSANGPO SUTURE ZONE ; FORE-ARC BASIN ; EAST-WEST EXTENSION ; VOLCANIC-ROCKS ; CONTINENTAL COLLISION ; TECTONIC EVOLUTION ; EURASIA COLLISION ; LHASA BLOCK
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000269974200002
资助机构	Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; Chinese Academy of Sciences(KZCX2-YW-Q09-06) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062) ; National Natural Science Foundation of China(40721062)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70382]
专题	中国科学院地质与地球物理研究所
通讯作者	Wu FuYuan
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Taiwan Natl Univ, Dept Geosci, Taipei 106, Taiwan
推荐引用方式 GB/T 7714	Ji WeiQiang,Wu FuYuan,Liu ChuanZhou,et al. Geochronology and petrogenesis of granitic rocks in Gangdese batholith, southern Tibet[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2009,52(9):1240-1261.
APA	Ji WeiQiang,Wu FuYuan,Liu ChuanZhou,&Chung SunLin.(2009).Geochronology and petrogenesis of granitic rocks in Gangdese batholith, southern Tibet.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,52(9),1240-1261.
MLA	Ji WeiQiang,et al."Geochronology and petrogenesis of granitic rocks in Gangdese batholith, southern Tibet".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 52.9(2009):1240-1261.