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Yandong porphyry Cu deposit, Xinjiang, China-Geology, geochemistry and SIMS U-Pb zircon geochronology of host porphyries and associated alteration and mineralization

文献类型：期刊论文

作者Shen, Ping1; Pan, Hongdi1,2; Dong, Lianhui1,3
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2014-02-05
卷号80页码:197-217
关键词Volcanic complex Porphyry Alteration Zircon U-Pb age Yandong Xinjiang
ISSN号1367-9120
DOI10.1016/j.jseaes.2013.11.006
文献子类Article
英文摘要The Yandong porphyry copper deposit, located in the Eastern Tianshan Mountains, Xinjiang, China, is part of the Central Asian Orogenic Belt. The Yandong deposit is hosted by a volcanic complex in the Early Carboniferous Qi'eshan Group and a felsic intrusion. The complex consists of andesite, basalt, diorite porphyry, and porphyritic quartz diorite. The felsic intrusion is a plagiogranite porphyry emplaced within the complex. The diorite porphyry and plagiogranite porphyry yield SIMS zircon U-Pb ages of 340.0 +/- 3 and 332.2 +/- 2.3 Ma, respectively. Element geochemistry shows that both the complex and plagiogranite porphyry formed in the Dananhu-Tousuquan island arc, a Carboniferous magmatic arc. The diorite porphyry and plagiogranite porphyry are host porphyries, but the plagiogranite porphyry is a productive porphyry. It caused the porphyry-style Cu mineralization and associated alteration. The alteration assemblages include early potassic and propylitic assemblages. These were overprinted by a chlorite-sericite assemblage, which in turn was overprinted by a late phyllic assemblage. The phyllic alteration is associated with the highest Cu grades. The mineralization is recognized to include three stages, from early to late: stage 1, a potassic alteration associated with a chalcopyrite + pyrite assemblage; stage 2, represented by chlorite-sericite alteration with a chalcopyrite + pyrite assemblage; and stage 3, the main-ore stage that is marked by phyllic alteration with chalcopyrite +/- pyrite molybdenite and producing more than 70% of the total copper production at Yandong. Yandong may represent a common scenario for Paleozoic porphyry Cu systems in the Central Asian Orogenic Belt. (C) 2013 Elsevier Ltd. All rights reserved.
WOS关键词EASTERN TIANSHAN ; SUBDUCTED LITHOSPHERE ; COPPER-DEPOSITS ; NATURAL ZIRCON ; TRACE-ELEMENT ; VOLCANIC ARC ; WEST JUNGGAR ; NW CHINA ; MAGMAS ; CONSTRAINTS
WOS研究方向Geology
语种英语
WOS记录号WOS:000331154800016
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Science Fund(41272109 ; National Science Fund(41272109 ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; National International cooperation in science and technology project(2010DFB23390) ; National International cooperation in science and technology project(2010DFB23390) ; National 305 Project(2011BABO6B01) ; National 305 Project(2011BABO6B01) ; 40972064) ; 40972064) ; National Science Fund(41272109 ; National Science Fund(41272109 ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; National International cooperation in science and technology project(2010DFB23390) ; National International cooperation in science and technology project(2010DFB23390) ; National 305 Project(2011BABO6B01) ; National 305 Project(2011BABO6B01) ; 40972064) ; 40972064) ; National Science Fund(41272109 ; National Science Fund(41272109 ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; National International cooperation in science and technology project(2010DFB23390) ; National International cooperation in science and technology project(2010DFB23390) ; National 305 Project(2011BABO6B01) ; National 305 Project(2011BABO6B01) ; 40972064) ; 40972064) ; National Science Fund(41272109 ; National Science Fund(41272109 ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; Innovative Project of the Chinese Academy of Sciences(KZCX-EW-LY02) ; National International cooperation in science and technology project(2010DFB23390) ; National International cooperation in science and technology project(2010DFB23390) ; National 305 Project(2011BABO6B01) ; National 305 Project(2011BABO6B01) ; 40972064) ; 40972064)
源URL[http://ir.iggcas.ac.cn/handle/132A11/85336]  
专题中国科学院地质与地球物理研究所
通讯作者Shen, Ping
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Changan Univ, Coll Earth Sci, Xian 710054, Peoples R China
3.Xinjiang Bur Geol & Mineral Resources, Uramuqi 830000, Peoples R China
推荐引用方式
GB/T 7714		 Shen, Ping,Pan, Hongdi,Dong, Lianhui. Yandong porphyry Cu deposit, Xinjiang, China-Geology, geochemistry and SIMS U-Pb zircon geochronology of host porphyries and associated alteration and mineralization[J]. JOURNAL OF ASIAN EARTH SCIENCES,2014,80:197-217.
APA Shen, Ping,Pan, Hongdi,&Dong, Lianhui.(2014).Yandong porphyry Cu deposit, Xinjiang, China-Geology, geochemistry and SIMS U-Pb zircon geochronology of host porphyries and associated alteration and mineralization.JOURNAL OF ASIAN EARTH SCIENCES,80,197-217.
MLA Shen, Ping,et al."Yandong porphyry Cu deposit, Xinjiang, China-Geology, geochemistry and SIMS U-Pb zircon geochronology of host porphyries and associated alteration and mineralization".JOURNAL OF ASIAN EARTH SCIENCES 80(2014):197-217.

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来源：地质与地球物理研究所

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