Geochemistry and geochronology of acidic rocks in the Beishan region, NW China: Petrogenesis and tectonic implications

doi:10.1016/j.jseaes.2010.12.002

	Geochemistry and geochronology of acidic rocks in the Beishan region, NW China: Petrogenesis and tectonic implications
	Su, Ben-Xun 1,2; Qin, Ke-Zhang 2; Sakyi, Patrick Asamoah 3; Liu, Ping-Ping 4; Tang, Dong-Mei 2; Malaviarachchi, Sanjeewa P. K.5; Xiao, Qing-Hua 2; Sun, He 1,2; Dai, Yu-Cai 6; Hu, Yan 1
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2011-04-30
卷号	41 期号:1 页码:31-43
关键词	Beishan Central Asian Orogenic Belt Dacite Magmatism Rhyolite Zircon U-ph-hf-o Isotopes
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2010.12.002
文献子类	Article
英文摘要	The dacites and granites from the Beishan region are characterized by highly-fractionated REE, enrichments in LILE, and depletion in Nb, Ta and Sr. The dacites contain zircons with ages ranging from 265 to 748 Ma. These features suggest that they were probably derived from the older lower continental crust and were later on subjected to significant crustal assimilation. The rhyolites, diorites and diabases, all of which share similar geochemical features such as trace element patterns, zircon U-Pb ages of similar to 280 Ma, positive epsilon(Hf)(t) and epsilon(Nd)(t), high initial (Sr-87/Sr-86)i and delta O-18 parts per thousand were most likely derived from the juvenile crustal sources and subsequently experienced fractional crystallization and crustal contamination. These acidic igneous rocks (except dacites and granites) and coeval mafic-ultramafic intrusions form a bimodal igneous series. This implies that the Beishan region was a Late Paleozoic rift probably developed in association with the early Permian mantle plume activity in the Tarim Basin. (C) 2010 Elsevier Ltd. All rights reserved.
WOS关键词	ZIRCON U-PB ; MAFIC-ULTRAMAFIC COMPLEXES ; ASIAN OROGENIC BELT ; EMEISHAN FLOOD BASALTS ; NORTHWESTERN CHINA ; NORTHERN XINJIANG ; GEOLOGICAL IMPLICATIONS ; CONTINENTAL GROWTH ; SOUTHERN ALTAIDS ; EASTERN XINJIANG
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000289542200002
资助机构	Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Nature Science Foundation of China(41030424) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese Academy of Sciences(KZCX2-YW-107) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01) ; Chinese State 305 Program(2006BAB07B03-01)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/73766]
专题	中国科学院地质与地球物理研究所
通讯作者	Su, Ben-Xun
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, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Univ Ghana, Dept Earth Sci, Legon, Ghana 4.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 5.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia 6.Xinjiang Bur Geol & Mineral Resources, Hami 839000, Peoples R China
推荐引用方式 GB/T 7714	Su, Ben-Xun,Qin, Ke-Zhang,Sakyi, Patrick Asamoah,et al. Geochemistry and geochronology of acidic rocks in the Beishan region, NW China: Petrogenesis and tectonic implications[J]. JOURNAL OF ASIAN EARTH SCIENCES,2011,41(1):31-43.
APA	Su, Ben-Xun.,Qin, Ke-Zhang.,Sakyi, Patrick Asamoah.,Liu, Ping-Ping.,Tang, Dong-Mei.,...&Hu, Yan.(2011).Geochemistry and geochronology of acidic rocks in the Beishan region, NW China: Petrogenesis and tectonic implications.JOURNAL OF ASIAN EARTH SCIENCES,41(1),31-43.
MLA	Su, Ben-Xun,et al."Geochemistry and geochronology of acidic rocks in the Beishan region, NW China: Petrogenesis and tectonic implications".JOURNAL OF ASIAN EARTH SCIENCES 41.1(2011):31-43.