东天山土屋-延东斑岩铜矿围岩的同位素年代和地球化学研究
Geochronological and geochemical study on the wallrock of Tuwu-Yandong porphyry copper deposits, eastern Tianshan mountains
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摘要: 东天山土屋-延东大型斑岩铜矿的成岩成矿时代及其构造背景还存在很大争议。本文报道了铜矿远矿围岩—企鹅山群的同位素年代和地球化学研究结果。研究表明,企鹅山群安山岩中锆石 SHRIMP U-Pb 谐和年龄值336.5±6.6Ma,玄武岩的透辉石、斜长石和全岩 Sm-Nd 内部等时线年龄值334±36Ma,两个结果一致地表明企鹅山群形成于早石炭世。元素地球化学研究表明,企鹅山群玄武岩样品属于岛弧拉斑玄武岩系列,其稀土元素配分模式显示轻稀土相对富集,重稀土相对亏损的右倾模式,与洋中脊玄武岩相比,具有大离子亲石元素相对富集、高场强元素相对亏损的特征,具有俯冲带岛弧火山岩的典型特征。构造环境判别图解也指示企鹅山群形成于俯冲带环境。本研究对土屋-延东大型斑岩铜矿的成岩成矿作用时代及其构造背景问题提供了重要制约。
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[1] Chen Fuwen,Li Huaqin,Chen Yuchuan,Wang Denghong,Wang Jinliang,Liu Dequan,Tang Yanling,Zhou Ruhong.2005. Zircon SHRIMP U-Pb Dating and Its Geological Significance of Mineralization in Tuwu-Yandong Porphyry CopperMine,East Tian shan Mountain.Aata Geologica Sinica,79(2):256-261 (in Chinese with English abstract)
[2] Chen Wenming and Qu Xiaoming.2002. Host Rock of Tuwu-Yandong (Porphyry) Copper Deposit in Tianshan Mountains.Mineral Deposits,21 (4):331-340 (in Chinese with English abstract)
[3] Compston W,Williams I S,Meyer C.1984. U-Pb geochronology of zircons from lunar breccia 73217 using a sensitive high massresolution ion microprobe.J Geophys Res,89:B525 -534
[4] Ji Jinsheng,Tao Hongxiang,Zeng Zhangren,Yang Xingke,Zhang Lianchang.1994. Geology and deposit of the golden ore belt in Eastern Tianshan mountain.Beijing:Geological Publishing House,1 200 (in Chinese with English abstract)
[5] He G Q,Li M S and Liu D Q.1994. Paleozoic crust evolution and ore deposit of Xinjiang,China.Wulumuqi:People\'s Publishing House of Xinjiang Province,1 -437 (in Chinese)
[6] Hoskin P W O,Black L P.2000. Metamorphic zircon formation by solidstate recrystallization of pretolith igneous zircon.J Metamorphic Geol,18,423 -439
[7] Liu Dequan,Chen Liuchuan,Wang Denghong,Tang Yanling,Zhou Ruhong,Wang Jinliang,Li Huaqin,Chen Fuwen.2003. A Discussion on Problems Related to Mineralization of Tuwu-Yandong Cu-Mo Orefield In Hami,Xinjiang,Mineral Deposits,22 (4):334-344 (in Chinese with English abstract)
[8] Ludwig K R.1999. IsoplotEx v.2.6. Berkeley Geochronological Center Spec Publ no.1 a
[9] Ma Ruishi,Wang Ciyin,Ye Shangfu.1993. Tectonic Framework and Crustal Evolution of Eastern Tianshan mountains.Nanjing,Publishing House of Nanjing University.1 -225 (in Chinese)
[10] Meschede M.1986. A method of discriminating between different types of mid-ocean ridge basalts and continental tholeiites with the Nb-Zr-Y diagram,Chemical Geology,56:207 -218
[11] Miyashiro A.1974. Volcanic rocks series in island arcs and active continental margins,Amer.J.Sci.,274:321 -355
[12] Qin Kezhang,Fang Tonghui,Wang Shulai,Zhu Baoqing,Feng Yimin,Yu Haifeng,Xiou Qunye.2002a.Plate Tectonics Division,Evolution and Metallogenic Settings in Eastern Tianshan Mountains,NW-China,Xinjiang Geology,20 (4):302-307 (in Chinese with English abstract)
[13] Qin Kezhang,Sun Shu,Li Jiliang,Xiao Wenjiao,Hao Jie.2002b.Division of Six stages of Major metallic Deposits in Northern Xinjiang and its Implications.Mineral Deposits,21 (Suppl.):203 -207 (in Chinese)
[14] Pearce J.A.1996. A user\'s guide to basalt discrimination diagrams.in:Wymann,D.A.(eds.).Trace element Geochemistry of volcanic rocks:applications for massive sulphide exploration.Geological Association of Canada,Short Course Notes,12:79 -113
[15] Rui Zongyao,Wang Futong,Li Henghai,Dong Lianhui,Wang Lei,Jiang Lifeng,Liu Yulin,Wang Longsheng,Chen Weishi.2001. New Progress of Twwu Porphyry Copper Deposit Belt,Xinjiang.Chinese Geology,28 (2):11-16 (in Chinese with English abstract)
[16] Rui Zongyao,Wang Longsheng,Wang Yitian,Liu Yulin.2002a.Discussion on Metallogenic Epoch of Twwu and Yandong Porphyry Copper Deposits in Eastern Tianshan Mountains,Xinjiang.Mineral Deposits,21 (1):16 -22 (in Chinese with English abstract)
[17] Rui Zongyao,Liu Yulin,Wang Longsheng,Wang Yitian.2002b.The Eastern Tianshan Porphyry Copper Belt in Xinjiang and Its Tectonic Frame Work.Acta Geologica Sinica,76 (1):83-94 (in Chinese with English abstract)
[18] Song Biao,Li Jinyi,Li Wenqian,Wang Kezhuo,Wang Yu.2002. SHRIMP dating of zircons from Dannahu and Kezirkalasayi granitoid batholith in southern margin of Tuha Basin and their geological implication,Xinjiang Geology,20(4):342 -345 (in Chinese with English abstract)
[19] Sun S.S.and McDonough W.F.1989. Chemical and istopic systematics of oceanic basalts:implications for mantle composition and process.in:Saunders A.D.,Norry M.J.(eds.).Magmatism in the Oceanic Basins.Geol.Soc.Spec.Publ.,313-345
[20] Wang Futong,Feng Jing,Hu Jianwei,Wang Lei,Jiang Lifeng,Zhang Zheng,2001. The Character of Tuwu Porphyry Copper Deposit and the significance of its being found,Xinjiang.Chinese Geology,28(1):36 -39 (in Chinese with English abstract)
[21] Wood D.A.1980. The application of a Th-Hf-Ta diagram to problems of tectonomagmatic classification and to establishing the nature of crustal contamination of basaltic lavas of the British Tertiary Volcanic Province.Earth Planet.Sci.Lett.,45:326-336
[22] Zhang LC,Qin KZ,Ying JF,Xia B and Shu JS.2004,The relationship between ore-forming processes and adakitic rock in Tuwu-Yandong porphyry copper metallogenic belt,eastern Tianshan mountains.Acta Petrologica Sinica,20 (2):259-268 (in Chinese with English abstract)
[23] 陈富文,李华芹,陈毓川,王登红,王金良,刘德权,唐延龄,周汝洪.2005.东天山土屋-延东斑岩铜矿田成岩时代精确测定及其地质意义.地质学报,79(2):256-261
[24] 陈文明,曲晓明.2002.论东天山土屋-延东(斑岩)铜矿的容矿岩.矿床地质,21(4):331-340
[25] 姬金生,陶洪祥,曾章仁,杨兴科,张连昌.1994.东天山康古尔金矿带地质与成矿.北京:地质出版社,1-200
[26] 刘德权,陈毓川,王登红,唐延龄,周汝洪,王金良,李华芹,陈富文.2003.土屋-延东铜钼矿田与成矿有关问题的讨论.矿床地质,22(4):334-344
[27] 何国琦,李茂松,刘德权.1994.中国新疆古生代地壳演化与成矿.乌鲁木齐:新疆人民出版社,1-437
[28] 马瑞士,王赐银,叶尚夫.1993.东天山构造格架及地壳演化.南京:南京大学出版社,1-225
[29] 秦克章,方同辉,王书来,朱宝清,冯益民,于海峰,修群业.2002a.东天山板块构造分区、演化与成矿地质背景研究.新疆地质,20(4):302-307
[30] 秦克章,孙枢,李继亮,肖文交,郝杰.2002b.北疆古生代矿床组合的六大构造阶段划分及其意义.矿床地质,21(增刊),203-207
[31] 芮宗瑶,王福同,李恒海,董连慧,王磊,姜立丰,刘玉琳,王龙生,陈伟十.2001.新疆东天山斑岩铜矿带的新进展.中国地质,28(2):11-16
[32] 芮宗瑶,王龙生,王义天,刘玉琳.2002a.东天山土屋和延东斑岩铜矿床时代讨论.矿床地质,21(1):16-22
[33] 芮宗瑶,刘玉琳,王龙生,王义天.2002b.新疆东天山斑岩型铜矿带及其大地构造格局.地质学报,76(1):83-94
[34] 宋彪,李锦轶,李文铅,王克卓,王瑜.2002.吐哈盆地南缘克孜尔卡拉萨依和大南湖花岗质岩基锆石SHRIMP定年及其地质意义.新疆地质,20(4):342-345
[35] 王福同,冯京,胡建卫,王磊,姜立丰,张征.2001.新疆土屋大型斑岩铜矿床特征及发现意义.中国地质,28(1):36-39
[36] 张连昌,秦克章,英基丰,夏斌,舒建生.东天山土屋-延东斑岩铜矿带埃达克岩及其与成矿作用的关系.2004.岩石学报,20(2):259-268
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