云南普朗复式岩体锆石U-Pb年龄和地球化学特征及其地质意义

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英文篇名：Single-grain zircon U-Pb isotopic ages,geochemistry and its implication of the Pulang complex in Ynnnan Province,China. 作者：庞振山 ; 杜杨松 ; 王功文 ; 郭欣 ; 曹毅 ; 李青 英文作者：PANG ZhenShan ; DU YangSong ; WANG GongWen ; GUO Xin ; CAO Yi and LI Qing China University of Geosciences ; Beijing 100083 ; China 关键词：复式侵入岩体 ; 单颗粒锆石U ; Pb年龄 ; 壳幔混源岩浆 ; 多次涌动侵入 ; 云南普朗 英文关键词：Complex ; Single-grain zircon U-Pb age ; Magma derived from mixing source of mantle with crust ; Multi-stages of gushing emplacement ; Pulang ; Yunnan Province 刊名：岩石学报 英文刊名：Acta Petrologica Sinica 出版日期：2009-01-15 出版单位：岩石学报 机构：中国地质大学(北京); 年：2009 期：01 基金：云南迪庆有色金属有限责任公司专项合作项目(编号0632)资助成果. CN：11-1922/P ISSN：1000-0569 页：161-167 页数：7 分类号：P597.3 语种：中文; 文件大小：320K

摘要

根据接触关系和岩石学特征将普朗复式岩体划分为三个阶段的侵入岩,即第一阶段的石英闪长玢岩,第二阶段的石英二长斑岩和第三阶段的花岗闪长斑岩。利用单颗粒锆石U-Pb法测定的早、中、晚三个阶段侵入岩的结晶年龄分别为221.0±1.0Ma、211.8±0.5Ma和206.3±0.7Ma。这些年龄数据结合岩石化学和锶同位素资料,表明普朗复式岩体是在印支期由壳幔混源岩浆多次涌动侵入形成的。
        The Pulang complex in Yunnan Province is divided into three stages of intrusions based on their contacting relationship and petrological characteristics.The lithologies of the intrusions include quartz dioritic porphyry formed in the first stage,quartz monzonitic porphyry in the second stage,and granodioritic porphyry in the third stage.The crystallization ages of the intrusions were determined by using the single-grain zircon U-Pb method.The single-grain zircon U-Pb isotopic ages are defined as 221.0±1.0Ma, 211.8±0.5Ma and 206.3 + 0.7Ma for the first,second and third stages of intrusions,respectively.These data combined with the results of petrochemical and Sr isotopic analyses support the formation of the Pulang complex in the lndo-Chinese epoch by multi-stages of gushing emplacement of the magmas derived from mixing source of mantle with crust.

引文

[1]云南迪庆有色金属有限责任公司.2007.云南迪庆普朗铜矿首采区补充地质勘探报告
    Campbell IH,Ballard JR,Palin.JM,Allen C and Faunes A.2006.U-Pb zircon geochronology of granitic rocks from the Chuquicamata-El Abra porphyry copper belt of northern Chile:Excimer laser ablation ICP-MS analysis.Economic Geology and the Bulletin of the Society of Economic Geologists,101(7):1327-1344
    Chambefort I,Morits R and von Quadt A.2007.Petrology,geochemistry and U/Pb geochronology of magmatic rocks from the high sulfidation epithermad Au-Cu Chelopech Deposit,Srednogorie Zone,Bulgaria Mineralium Deposita,42(7):665 -690
    Chen XM,Lu JJ,Liu CS,Zhao LZ,Wang DZ and Li HM.1999. Single grain zircon U-Pb isotopic ages of the volcanic intrusive complexes in Tonglu and Xiangshan areas.Acta Petrologica Sinica, 15(2):272 -278(in Chinese with English abstract)
    Ding X,Jiang SY,Ni P,Gu LX and Jiang YH.2005.Zircon SIMS U-Pb geochronology of host granitoids in Wushan and Yongping copper deposits,Jiangxi Province.Geological Journal of China Universities, 11(3 ):383 - 389(in Chinese with English abstract)
    Fan YH and Li WC.2006.Geological characteristics of the Pulang porphyry copper deposit,Yunnan.Geology in China,23(2):352 - 362(in Chinese with English abstract)
    Harris AC,Allen CM,Bryan SE,Campbell IH,Holcombe RJ and Palin JM.2004.ELA-ICP-MS U-Pb zircon geochronology of regional volcanism hosting the Bajo de la Alumbrera Cu-Au deposit: Implications for porphyry-related mineralization.Mineralium Deposita,39(1 ):46 -67
    Mo JH,Liang HY,Yu HX,Xie YW and Zhang YQ.2006.Comparison of ELA-ICP-MS and SHRIMP U-Pb zircon ages of the Chongjiang and Qulong ore-bearing porphyries in the Gangdesc porphyry copper belt.Geotectonica et Metallogenia,30(4):303 - 331(in Chinese with English abstract)
    Krogh T.1973.A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations.Geochimica et Cesmochimica Acta,37(3 ):485 - 494
    Li XH and Gui XT.1990.Dating of granitoid rocks:A brief methodological discussion.Geochimica,15(4 ):303 - 331(in Chinese with English abstract)
    Li WC and Zeng PS.2007.Characteristics and metallogenic model of the Pulang suporlarge porphyry copper deposit in Yunnan, China.Journal of Chengdu University of Technology(Science & Technology Edition),34(4 ):436 - 446(in Chinese with English abstract)
    Valencia VA,Ruiz J,Barra F,Gehrels G,Ducea M,Titley SR and Ochoa-Landin L 2005.U/Pb zircon and Re/Os molybdenite geochronology from La Caridad porphyry copper deposit:Insights for the duration of magmatism and mineralization in the Nacozari District,Sonora,Mexico.Mineralium Deposita,40(2):175 - 191
    yon Quadt A,Peytcheva I,Kamenov B,Fanger L,Heinrich CA and Frank M.2002.The Elatsite porphyry copper deposit in the Panagyurishie ore district,Srednogorie Zone,Bulgaria:U-Pb zircon geochronology and isotope-geochemical investigations of magmatism and ore genesis.Geological Society Special Publications,204:119 - 135
    von Quadt A,Moritz R,Peytcheva I and Heinrich CA.2005. Geochronology and geodynamics of Late Cretaceous magmatism and Cu-Au mineralization in the Panagyurishte region of the Apuseni-Banat -Timok-Srednogorie Belt,Bulgaria Ore Geology Reviews,27 (1 -4):95 - 126
    Wang GW,Guo YS,Du YS,Fan YH,Guo X,Pang ZS and Chen JP. 2007.Three-dimensional metallogenic prediction of Pulang porphyry copppor deposit in Yunnan Province by using GIS technology. Mineral Depsoits,26(6 ):651 - 658(in Chinese with English abstract)
    Wang SX,Zhang XC,Leng CB and Qin CJ.2007a.A tentative study of ore geochemistry and ore-forming mechanism of Pulang porphyry copper deposit in Zhongdian,northwestern Yunnan.Mineral Deposits,26(3):377 -288(in Chinese with English abstract)
    Wang SX,Zhang XC,Qin CJ,Shi SH,Leng CB and Chen YJ.2007b. Fluid inclusions in quartz veins of Pulang porphyry copper deposit, Zhongdian,northwestern Yunnan,China.Geochimica,26(3)467 - 478(in Chinese with English abstract)
    Wilson A J,Cooke DR,Stein HJ,Fanning Ck,Holliday JR and Tedder IJ.2007.U-Pb and Re-Os geochronologic evidence for two alkalic porphyry ore-forming events in the Cadia District,New South Wales, Australia.Economic Geology and the Bulletin of the Society of Economic Geologists,102(1):3 -26
    Yang YQ,Hou ZQ,Huang DH and Qu XM.2002.Collision orogenic process and magmatic metallogenic system in zhongdian arc.Acta Geosicientia Sinica,23(1 ):17 - 24(in Chinese with English abstract)
    Zeng PS,Hon ZQ,Li LH,Qu WJ,Wang HP,Li WC,Meng YF and Yang ZS.2004.Age of the Pulang porphyry copper deposit in NW Yunnan and its geological significance.Regional Geology of China, 23(3):1127 - 1131(in Chinese with English abstract)
    Zeng PS,Li WC,Wang HP and Li H.2006.The lndosinian Pulang superlarge porphyry copper deposit in Yunnan,China:Petrology and Chronology.Acta Petrologica Sinica,22(1 ):989 - 1000(in Chinese with English abstract)
    Zeng PS,Mo XX,Yu XH,Hou ZQ,Xu QD,Wang HP,Li H and Yang CZ.2003.Porphyries and porphyry copper deposits in Zhongdian area,northwestern Yunnan Mineral Deposits,22(4):393 - 400(in Chinese with English abstract)
    Zheng YF,Fu B and Gong B.1996.The thermal history of the Huangmeijian granite intrusion in Anhui and its relation to mineralization:Isotopic evidence.Acta Geologica Sinica,9(2):168 -180
    陈小明,陆建军,刘昌实,赵连泽,王德滋,李惠民.1999.桐庐、相山火山-侵入杂岩单颗粒锆石U-Pb年龄.岩石学报,15(2): 272-278
    丁昕,蒋少涌,倪培,顾连兴,姜耀辉.2005.江西武山和永平铜矿含矿花岗质岩体锆石SIMS U-Pb年代学.高校地质学报,11 ??(3):383-389
    范玉华,李文昌.2006.云南普朗斑岩铜矿床地质特征.中国地质, 23(2):352-362
    莫济海,梁华英,喻亨祥,谢应雯,张玉泉.2006.冈底斯斑岩铜矿带冲江及驱龙含矿斑岩体锆石ELA2 ICP-MS及SHRIMP定年对比研究.大地构造与成矿学,30(4):504-509
    李献华,桂训唐.1990.花岗岩的定年方法学讨论.地球化学,15 (4):303-33l
    李文昌,曾普胜.2007.云南普朗超大型斑岩铜矿特征及成矿模型.成都理工大学学报(自然科学版),34(4):436-446
    王功文,郭远生,杜杨松,范玉华,郭欣,庞振山,王建平.2007.基于GIS的云南普朗斑岩铜矿床三维成矿预测.矿床地质,26 (6):651-658
    王守旭,张兴春,冷成彪,秦建朝.2007a.滇西北中甸普朗斑岩铜矿床地球化学与成矿机理初探.矿床地质,26(3):277-288
    王守旭,张兴春,秦朝建,石少华,冷成彪,陈衍景.2007b.滇西北中甸普朗斑岩铜矿流体包裹体初步研究.地球化学,26(3): 467-478
    杨岳清,侯增谦,黄典豪,曲晓明.2002.中甸弧碰撞造山作用和岩浆成矿系统.地球学报,23(1):17-24
    曾普胜,侯增谦,李丽辉,屈文俊,王海平,李文昌,蒙义峰,杨竹森.2004.滇西北普朗斑岩铜矿床成矿时代及其意义.地质通报,23(3):1127-1131
    曾普胜,李文昌,王海平,李红.2006.云南普朗印支期超大型斑岩铜矿床:岩石学及年代学特征.岩石学报,22(1):989-1000
    曾普胜,莫宣学,喻学惠,侯增谦,徐启东,王海平,李红,杨朝志. 2003.滇西北中甸斑岩及斑岩铜矿.矿床地质,22(4):393 -400

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