全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
矿床地质  2010 

华北北缘张宣地区东坪金矿中的两期锆石:对成矿年龄的约束

Keywords: 地质学,U-Pb定年,岩浆锆石,热液锆石,石英脉,东坪金矿

Full-Text   Cite this paper   Add to My Lib

Abstract:

东坪金矿床位于华北克拉通北部边缘的张宣地区,产于水泉沟碱性杂岩体南部的中细粒正长岩中,属于低硫化物钾长石石英脉型碲金矿床。金矿石包括低硫化物碲金石英脉型和钾质蚀变岩型两种类型。文章对产于东坪金矿1号脉的钾长石石英脉中的锆石进行了成因矿物学和LA-ICP-MSU-Pb年代学的系统研究,结果表明,矿脉中的锆石可以分成岩浆锆石和热液锆石两种成因类型。岩浆锆石具有自形到半自形结构、柱状晶型,在电子探针背散射电子图像(BSE)上呈暗灰色;在阴极发光图像(CL)上具有明显的岩浆振荡环带。热液锆石多呈不规则状充填在岩浆锆石中,也有呈他形晶独立存在的;在BSE图像上呈亮灰白色,而在CL图像上为深黑色(无阴极发光)。岩浆锆石的Th、U含量和Th/U比值相对较低,其U_Pb加权平均年龄为(380.5±2.6)Ma,说明水泉沟碱性杂岩体形成于晚泥盆世。热液锆石的Th、U含量和Th/U比值较岩浆锆石明显增高,U-Pb加权平均年龄为(140.2±1.3)Ma,说明东坪金矿床形成于早白垩世。因此,成岩与成矿年龄相差近240Ma,表明东坪金矿床的形成与水泉沟碱性杂岩体的岩浆侵位事件无直接关系。通过对区域地质背景的综合分析,作者认为成矿流体可能与该区燕山期的岩浆活动有关。

References

[1]  陆松年,李怀坤,李惠民,杨春亮,胡正德,蒋明媚,金矿床密集区的基底特征及成矿作用研究,北京:地质出版社,1997.
[2]  罗镇宽.苗来成.关康.裘有守.Y.M.Qiu.N.J.McNaughton.D.I.Groves 河北张家口水泉沟岩体SHRIMP年代学研究及其意义 [J].-地球化学2001(2)
[3]  邵济安,魏春景,张履桥,牛树银,牟保磊,张宣隆起核部的转枝莲辉石闪长岩,岩石学报,2004(6).
[4]  沈保丰,陆松年,杨春亮,李俊建,毛德宝,李怀坤,矿床密集区预测的理论和方法 (以华北地台为例),北京:地质出版社,2000.
[5]  宋国瑞,赵振华,河北省东坪碱性杂岩金矿地质,北京:地震出版社,1996.
[6]  唐俊华,顾连兴,张遵忠,吴昌志,三金柱,汪传胜,刘四海,张光辉,东天山咸水泉片麻状花岗岩特征、年龄及成因,岩石学报,2007(8).
[7]  魏菊英,苏琪,河北东坪金矿区水泉沟岩体的地球化学特征,地质科学,1994(3).
[8]  吴元保,郑永飞.锆石成因矿物学研究及其对U-Pb年龄解的制约,科学通报,2004(16).
[9]  翟明国,朱日祥,刘建明,孟庆任,候泉林,胡圣标,李忠,张宏福,刘伟,华北东部中生代构造体制转折的关键时期,中国科学d辑,2003(10).
[10]  张招崇,陈洪新,水泉沟杂岩体的地质学和岩石学研究,贵金属地质,1997(2).
[11]  朱永峰,宋彪,新疆天格尔糜棱岩化花岗岩的岩石学及其SHRIMP年代学研究:兼论花岗岩中热液锆石边的定年,岩石学报,2006(1).
[12]  Andersen T,Correction of common Pb in U-Pb analysis that do not report 2004Pb,Chemical Geology,2002.
[13]  Bao Z W,Zhao Z H,Zhang P H,Wang Y X,REE,Sr,Nd,and Pb isotopic evidence for the petrogenesis of the Shuiquangou syenite complex in NW Hebei Province,China,Geological Review,2003(6).
[14]  Belousova E A,Griffin W L,O\'Reilly S Y,Fisher NI,Igneous zircon:Trace element composition as an indicator of source rock type,Contributions to Mineralogy & Petrology,2002.
[15]  Cherniak D J,Watson E B,Diffusion in zircon,Reviews in Mineralogy and Geochemistry,2003(1).
[16]  Claoué-Long J C,King R W,Kerrich R,Archaean hydrothermal zircon in the Abitibi greenstone belt:Constraints on the timing of gold mineralisation,Earth and Planetary Science Letters,1990(1).
[17]  Dempster T J,Hay D C,Bluck B J,Zircon grows in slate,Geology,2004.
[18]  Deng J F,Mo X X,Zhao H L,Luo Z H,Zhao G C and Dai S Q,The Yanshanian lithosphere-asthenosphere catastrophe and metallogenic environment in east China,Mineral Deposits,1999(4).
[19]  Dubinska E,Bylina P,Kozlowski A,U-Pb dating of serpentinization:Hydrothermal zircon from a metasomatic rodingite shell (Sudetic ophiolite,SW Poland),Chemical Geology,2004(3-4).
[20]  Hart C J R,Goldfarb R J,Qiu Y,Snee L W,Miller L D and Miller M L,Gold deposits of the northern margin of the North China craton:Multiple late Paleozoic-Mesozoic mineralizing events,Mineral Deposits,2002.
[21]  Hoskin P W O,Schaltegger U,The composition of zircon and igneous and metamorphic Petrogenesis,Mineralogical Society of America,2003.
[22]  Hoskin P W O,Trace-element composition of hydrothermal zircon and the alteration of Hadean zircon from the Jack Hills,Australia,Geochimica et Cosmochimica Acta,2005(3).
[23]  Hu F F,Fan H R,Yang J H,Wan Y S,Liu D Y,Zhai M G and Jin C W,Mineralizing age of the Rushan lode gold deposit in the Jiaodong Peninsula:SHRIMP U-Pb dating on hydrothermal zircon,Chinese Science Bulletin,2004(15).
[24]  Hu X D,Chen Z H,Zhao Y M,Wang K Y,The metallongenitic epoch of the Xiaoyingpan gold deposit-the new material of U-Pb isotopic age on single zircon,Progress of Precambrian Research,1997(2).
[25]  Hua R M,Mao J W,A preliminary discussion on the mesozoic metallogenic explosion in east China,Mineral Deposits,1999(4).
[26]  Jiang N,Petrology and geochemistry of the Shuiquangou syenitic complex,northern margin of the North China Craton,Journal of the Geological Society(London),2005.
[27]  Jiang N,Liu Y S,Zhou W G,Yang J H and Zhang S Q,Derivation of Mesozoic adakitic magmas from ancient lower crust in the North China craton,Geochimica et Cosmochimica Acta,2007.
[28]  Jiang N,Zhang S Q,Zhou W G,Liu Y S,Origin of a Mesozoic granite With A-type characteristics from the North China craton:Highly fractionated from I-type magmas,Contributions to Mineralogy & Petrology,2009.
[29]  Jiang S H,Nie F J,Nd-isotope constrants on origin of the Shuiquangou intrusive complex,North-Western Hebei,China,Geological Review,2003(4).
[30]  Kerrich R,Hydrothermal zircon and baddeleyite in Val-d\'Or Archean mesothermal gold deposits:Characteristics,compositions,and fluid-inclusion properties,with implications for timing of primary gold mineralization,Canadian Journal of Earth Sciences,1993.
[31]  Li C M,Relationship between the gold source of Dongping gold deposit and archean TTG-greenstone belt,Progress of Precambrian Research,1999(1).
[32]  更多...
[33]  Li J W,Vasconcelos P M,Zhou M F,Geochronology of the Pengjiakuang and Rushan gold deposits,eastern Jiaodong gold province,northeastern China:Implications for regional mineralization and geodynamic setting,Economic Geology,2006.
[34]  Liang H Y,Mo C H,Wang X Z,Single zircon Pb-evaporation 207Pb/206Pb age of the gold -bearing Shuiquangou alkaline rock in Zhangjiakou area,Hebei Province,China,Geochimica,1998(1).
[35]  Liati A,Gebauer D,Wysoczanski R,U-Pb SHRIMP-dating of zircon domains from UHP garnet-rich mafic rocks and late pegmatoids in the Rhodope zone(N Greece):Evidence for early Cretaceous crystallization and late Cretaceous metamorphism,Chemical Geology,2002.
[36]  Lu D L,Luo X Q,Wang J J,Zhang S H and Zheng B Y,The metallogenic epoch of the Dongping gold deposit,Mineral Deposits,1993(2).
[37]  Lu S N,Li H K,Li H M,Yang C L,Hu Z D and Jiang M M,Study on the precambrian basement and mineralization in the gold-concentrated regin,北京:地质出版社,1997.
[38]  Ludwig K R,Squid 1.02:A user manual,Berkeley Geochronological Center Special Publication,2001.
[39]  Luo Z K,Miao L C,Guan K,Qiu Y S,Qiu Y M,McNaughton N J and Groves D I,SHRIMP chronological study of Shuiquangou intrusive body in Zhangjiakou area,Hebei Province and its geochemical significance,Geochimica,2001(2).
[40]  Mao J W,Hua R M,Li X B,A Preliminary study of large-scale metallogenesis and large clusters of mineral deposits,Mineral Deposits,1999(4).
[41]  Mao J W,Li Y Q,Fluid Inclusions of the Dongping gold telluride deposit in Hebei Province,China:Involvement of mantle fluid in metallogenesis,Mineral Deposits,2001(1).
[42]  Mao J W,Li Y Q,Fluid inclusion and noble gas studies of the Dongping gold deposit,Hebei Province,China:A mantle connection for mineralization,Economic Geology,2003.
[43]  Mao J W,Zhang Z H,Yu J J,Wang Y T and Niu B G,Geodynamic setting of Mesozoic large-scale mineralization in the North China and adjacent areas:Implication from the highly precise and accurate ages of metal deposit,Science in China(Series D),2003(4).
[44]  Mao J W,Xie G Q,Zhang Z H,Li X F,Wang Y T,Zhang C Q and Li Y F,Mesozoic large-scale metallogenic pulses in North China and corresponding geodynamic setting,Acta Petrologica Sinica,2005(1).
[45]  Miao L C,Qiu Y M,McNaughton N J,Groves D I,Zhai Y S,Fan W M,Zhai M G and Guan K,SHRIMP U-Pb Zircon geochronology of granitoids from Dongping area,Hebei Province,China:Constraints on tectonic evolution and geodynamic setting for gold metallogeny,Ore Geology Reviews,2002.
[46]  Mo C H,Liang H Y,Wang X Z,Cheng J P and Li H M,Zircon U-Pb dating of the Shuiquangou intrusive complex,north-western Hebei,China,Chinese Science Bulletin,1997(1).
[47]  Mo C H,Wang X Z,Liang H Y,Cheng J P,Single zircon U-Pb dating of Shangshuiquan granite,Dongping gold deposit,Hebei Province,Acta Mineralogica Sinica,1998(3).
[48]  Shao J A,Wei C J,Zhang L Q,Niu S Y and Mu B L,The Zhuanzhilian pyroxene diorite in core of Zhuang-Xuan upwarp,Acta Petrologica Sinica,2004(6).
[49]  Shen B F,Lu S N,Yang C L,Li J J,Mao D B and Li H K,The forecasting theory and method of the metallogenic focus-area-Example by the gold deposits of North China Platform,北京:地质出版社,1997.
[50]  Simon E,Jackson,Norman J,Pearson and William L,The application of laser ablation-inductively coupled plasma-mass spectrometry to in situ U-Pb zircon geochronology,Chemical Geology,2004.
[51]  Song G R,Zhao Z H,Geology of Dongping alkaline complex-hosted gold deposit in Hebei Province,北京:地质出版社,1996.
[52]  Tang J H,Gu L X,Zhang Z Z,Wu C Z,San J Z,Wang C S,Liu S H and Zhang G H,Charaeteristics,age and origin of the Xianshuiquan gneissose granite in eastern Tianshan,Acta Petrologica Sinica,2007(8).
[53]  Tomaschek F,Kennedy A K,Villa I M,Zircons from Syros,Cyclades,Greece-recrystalli-zation and mobilization of zircon during high-pressure metamorphism,Journal of Petrology,2003(11).
[54]  Wang X,Chen J,Luo D,Study on petrogenesis of zircons from the Danzhu granodiorite and its geological implications,Geological Review,2008(3).
[55]  Wei J Y,Su Q,Geochemistry characteristics of Shuiquangou rock body in Dongping gold ore district,Hebei Province,Scientia Geologica Sinica,1994(3).
[56]  Wei Z L,Zhang H,Liu X M,Zhang Y Q,LA-ICP-MS geochronology of volcanics of the Zhangjiakou Formation in Zhangjiakou area,Hebei Province and its geological significance,Progress in Natural Science,2008(5).
[57]  Wu Y B,Zhen Y F,The research of the genesis mineralogy of zircon and the restriction to the explanation of the U-Pb dating,Chinese Science Bulletin,2004(16).
[58]  Zhai M G,Zhu R X,Liu J M,Men Q R,Hou Q L,Hu S B,Li Z,Zhang H F and Liu W,The critical time limit of Mesozic tectonic regime transformation in eastern north China,Science in China(Series D),2003(10).
[59]  Zhang Z C,Chen H X,Geology and petrology of Shuiquangou complex,northern Hebei Province,Journal of Precious Metallic Geology,1997(2).
[60]  Zhu Y F,Song B,Petrology and SHRIMP chronology of mylonitized Tianger granite,Xinjiang:Also about the dating on hydrothermal zircon rim in granite,Acta Petrologica Sinica,2006(1).
[61]  包志伟,赵振华,张佩华,王一先,张家口水泉沟正长岩杂岩体成因的REE和Sr、Nd、Pb同位素证据,地质论评,2003(6).
[62]  邓晋福.莫宣学.赵海玲.罗照华.赵国春.戴圣潜 中国东部燕山期岩石圈-软流圈系统大灾变与成矿环境 [J].-矿床地质1999(4)
[63]  胡小蝶,陈志宏,赵彦明,王魁元,河北小营盘金矿成矿时代--单颗粒锆石U-Pb同位素年龄新证据,前寒武纪研究进展,1997(2).
[64]  华仁民.毛景文 试论中国东部中生代成矿大爆发 [J].-矿床地质1999(4)
[65]  江思宏.聂凤军 冀西北水泉沟杂岩体成因的Nd同位素证据 [J].-地质论评2003(4)
[66]  李长民,东坪金矿金质来源与张宣地区花岗岩-绿岩地体的关系探讨,前寒武纪研究进展,1999(1).
[67]  梁华英.莫测辉.王秀璋 张家口水泉沟碱性杂岩体单颗粒锆石207Pb/206Pb年龄分析 [J].-地球化学1998(1)
[68]  卢德林.罗修泉.汪建军.张思红.郑宝英 东坪金矿成矿时代研究 [J].-矿床地质1993(2)
[69]  毛景文.华仁民.李晓波 浅议大规模成矿作用与大型矿集区 [J].-矿床地质1999(4)
[70]  毛景文.李荫清 河北省东坪碲化物金矿床流体包裹体研究:地幔流体与成矿关系 [J].-矿床地质2001(1)
[71]  毛景文,谢桂青,张作衡,李晓峰,王义天,张长青,李永峰,中国北方中生代大规模成矿作用期次及其地球动力学背景,岩石学报,2005(1).
[72]  毛景文,张作衡,余金杰,王义天,牛宝贵,华北及邻区中生代大规模成矿的地球动力学背景:从金属矿床年龄精测得到启示,中国科学d辑,2003(4).
[73]  莫测辉,梁华英,王秀璋,程景平,李惠民,冀西北水泉沟碱性杂岩体锆石U-Pb定年,科学通报,1997(1).
[74]  汪相,陈洁,罗丹,浙西南淡竹花岗闪长岩中锆石的成因研究及其地质意义,地质论评,2008(3).
[75]  韦忠良,张宏,柳小明,张晔卿,张家口地区张家口组火山岩的LA-ICP-MS测年及其地质意义,自然科学进展,2008(5).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133