Geochronology and geochemistry of granitoid rocks from the Zhibo syngenetic volcanogenic iron ore deposit in the Western Tianshan Mountains (NW-China): Constraints on the age of mineralization and tectonic setting

doi:10.1016/j.gr.2011.06.007

	Geochronology and geochemistry of granitoid rocks from the Zhibo syngenetic volcanogenic iron ore deposit in the Western Tianshan Mountains (NW-China): Constraints on the age of mineralization and tectonic setting
	Zhang, Xi 1,2,3; Tian, Jingquan 4; Gao, Jun 1,2; Klemd, Reiner 5; Dong, Lianhui 6; Fan, Junjia 7; Jiang, Tuo 1,2,3; Hu, Chengjian 4; Qian, Qing 1
刊名	GONDWANA RESEARCH
	2012-09-01
卷号	22 期号:2 页码:585-596
关键词	Granitoid rocks U-Pb zircon ages The Zhibo iron ore deposit Tianshan
ISSN号	1342-937X
DOI	10.1016/j.gr.2011.06.007
文献子类	Article
英文摘要	Several large syngenetic volcanogenic iron ore deposits including the Chagangnuoer Fe-Cu, the Zhibo Fe and the Beizhan Fe deposits occur in the Awulale Fe-Cu Metallogenetic Belt (AMB) which is located in the southeastern corner of the Yili block in the Western Tianshan Mountains (NW-China). In the present study, we report geochronological and geochemical data for granitoid rocks associated with the Zhibo iron ore deposit in order to constrain the age of the stratiform Fe mineralization and tectonic setting of this deposit. Laser ablation-ICPMS (LA-ICPMS) U-Pb zircon ages of 318.9 +/- 1.5 Ma and 304.1 +/- 1.8 Ma were obtained for a diorite and a granite pluton, respectively, both of which intruded the volcanic-volcaniclastic rocks of the Early Carboniferous Dahalajunshan Formation, Additional LA-ICPMS U-Pb zircon ages of 320.3 +/- 2.5 Ma and 294.5 +/- 1.6 Ma were obtained for two crosscutting granite dikes, respectively. The ca. 319 Ma diorite has a high-potassium calc-alkaline, weakly peraluminous composition and is characterized by large ion lithophile element (LILE) and light rare earth element (LREE) enrichment and flat heavy rare earth element (HREE) patterns. It further shows distinct negative anomalies of Nb. Ta and Ti. In contrast, the ca. 304 Ma granite classifies as A(2) type granite and is characterized by an enrichment of LILE and LREE, flat HREEs and distinct negative anomalies of Ba, Nb, Ta and Ti. The ca. 320 Ma granite dike has a low-potassium and weakly peraluminous composition and is characterized by LILE and LREE enrichment and a distinct depletion of Nb,Ta, Ti and HREE. The ca. 295 Ma granite displays a high-potassium calc-alkaline and weakly peraluminous composition and is characterized by a slight enrichment of LILE and LREE, flat HREEs and a distinct depletion of Nb, Ta and Ti. The data presented here in conjunction with previously published data suggest a submarine, syngenetic volcanogenic mineralization age of ca. 320 Ma for the Zhibo iron ore deposit. The Zhibo and other submarine volcanogenic iron ore deposits of the AMB are inferred to have formed in a continental arc-setting related to subduction tectonics. Furthermore, post-collisional granitic magmatism from 304 to 295 Ma was superimposed on the entire AMB. Crown Copyright (c) 2011 Published by Elsevier B.V. on behalf of International Association for Gondwana Research. All tights reserved.
WOS关键词	CARBONIFEROUS VOLCANIC-ROCKS ; TRACE-ELEMENT GEOCHEMISTRY ; PHANEROZOIC CRUSTAL GROWTH ; ASIA OROGENIC BELT ; A-TYPE GRANITES ; TIEN-SHAN ; NORTHWESTERN CHINA ; POSTCOLLISIONAL GRANITES ; COLLISIONAL TECTONICS ; YILI BLOCK
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000307602000017
资助机构	National Basic Research Program of China(2007CB411302) ; National Basic Research Program of China(2007CB411302) ; National Natural Science Foundation of China(41025008 ; National Natural Science Foundation of China(41025008 ; 40872057) ; 40872057) ; National Basic Research Program of China(2007CB411302) ; National Basic Research Program of China(2007CB411302) ; National Natural Science Foundation of China(41025008 ; National Natural Science Foundation of China(41025008 ; 40872057) ; 40872057) ; National Basic Research Program of China(2007CB411302) ; National Basic Research Program of China(2007CB411302) ; National Natural Science Foundation of China(41025008 ; National Natural Science Foundation of China(41025008 ; 40872057) ; 40872057) ; National Basic Research Program of China(2007CB411302) ; National Basic Research Program of China(2007CB411302) ; National Natural Science Foundation of China(41025008 ; National Natural Science Foundation of China(41025008 ; 40872057) ; 40872057)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84144]
专题	中国科学院地质与地球物理研究所
通讯作者	Gao, Jun
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Xinjiang Bur Geol & Mineral Resources, Kuerle 841000, Peoples R China 5.Univ Erlangen Nurnberg, GeoZentrum Nordbayern, D-91054 Erlangen, Germany 6.Xinjiang Bur Geol & Mineral Resources, Urumqi 83000, Peoples R China 7.CNPC, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xi,Tian, Jingquan,Gao, Jun,et al. Geochronology and geochemistry of granitoid rocks from the Zhibo syngenetic volcanogenic iron ore deposit in the Western Tianshan Mountains (NW-China): Constraints on the age of mineralization and tectonic setting[J]. GONDWANA RESEARCH,2012,22(2):585-596.
APA	Zhang, Xi.,Tian, Jingquan.,Gao, Jun.,Klemd, Reiner.,Dong, Lianhui.,...&Qian, Qing.(2012).Geochronology and geochemistry of granitoid rocks from the Zhibo syngenetic volcanogenic iron ore deposit in the Western Tianshan Mountains (NW-China): Constraints on the age of mineralization and tectonic setting.GONDWANA RESEARCH,22(2),585-596.
MLA	Zhang, Xi,et al."Geochronology and geochemistry of granitoid rocks from the Zhibo syngenetic volcanogenic iron ore deposit in the Western Tianshan Mountains (NW-China): Constraints on the age of mineralization and tectonic setting".GONDWANA RESEARCH 22.2(2012):585-596.