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甘肃阳山金矿床花岗岩成因:来自地球化学、Sr-Nd-Pb同位素和年代学的证据
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  • 英文篇名:Petrogenesis of Granites in Yangshan Gold Deposit,Gansu Province:Evidence from Geochemical Characteristics,Sr-Nd-Pb Isotope and Geochronology
  • 作者:杨贵才 ; 袁士松 ; 葛良胜 ; 王治华 ; 齐金忠 ; 闫家盼 ; 赵由之 ; 张玉杰 ; 李鹏
  • 英文作者:YANG Guicai;YUAN Shisong;GE Liangsheng;WANG Zhihua;QI Jinzhong;YAN Jiapan;ZHAO Youzhi;ZHANG Yujie;LI Peng;School of Earth Science and Resources, China University of Geosciences;Gold Geological Institute of Chinese People's Armed Police Force;Gold Headquarters of Chinese People's Armed Police Force;
  • 关键词:花岗岩 ; 碧口地体 ; 岩石成因和源区 ; 阳山金矿床 ; 甘肃
  • 英文关键词:granite;;Bikou terrane;;petrogenesis and source;;Yangshan gold deposit;;Gansu province
  • 中文刊名:DGYK
  • 英文刊名:Geotectonica et Metallogenia
  • 机构:中国地质大学地球科学与资源学院;武警黄金地质研究所;武警黄金指挥部;
  • 出版日期:2016-08-15
  • 出版单位:大地构造与成矿学
  • 年:2016
  • 期:v.40;No.153
  • 基金:国土资源部公益性行业科研专项经费项目(201411048);; 中国地质调查局基础调查与综合研究项目(12011220663);; 整装勘查区综合研究项目(12120114050201)联合资助
  • 语种:中文;
  • 页:DGYK201604009
  • 页数:29
  • CN:04
  • ISSN:44-1595/P
  • 分类号:117-145
摘要
甘肃文县阳山金矿为西秦岭近十年来发现的超大型卡林–类卡林型金矿床,地处扬子板块西北部碧口地体北缘。本文选取阳山矿区与矿体在空间上密切相关的花岗岩样品,进行系统的元素地球化学特征分析,结合前人的年代学和Sr-Nd-Pb同位素数据来探讨其成因。阳山花岗岩SiO_2含量为60.64%~80.77%、Al_2O_3为13.68%~23.71%,K_2O为0.74%~4.32%,A/CNK为1.34~6.02,富集Cs、U、K、Pb等元素,亏损Ba、Nb、La、Ce、Sr、Ti等元素,ΣREE=14.45×10–6~143.14×10–6,平均70.31×10–6,LREE/HREE=1.39~19.52,平均10.12,具有轻稀土富集,重稀土亏损的特征,(La/Yb)N=1.48~37.26,平均17.08,球粒陨石标准化配分模式显示弱负Eu异常(δEu=0.50~1.21,平均0.77),为过铝质钙碱性花岗岩。结合前人对花岗岩、碧口群和泥盆系三河口组的元素地球化学、年代学和Sr-Nd-Pb同位素等测试数据以及区域构造演化历史,认为阳山花岗岩来源于碰撞增厚的地壳物质——碧口群的部分熔融,在上升的过程中与泥盆系发生混染。
        The Yangshan gold deposit, a super-large Carlin-type or Carlin-like gold deposit, was discovered in the western Qinling, Gansu province decade ago. It is located in the north margin of the Bikou Terrane, Northwest Yangtze craton. This paper reports the geochemical characteristics of the granites, which are spatially associated with the orebodies, and discusses the petrogenesis and source of the granites in the Yangshan gold deposit. The SiO_2, K_2O and Al_2O_3 of the Yangshan granites are in the ranges 60.64%~80.77%, 2.27%~4.32%, and 11.83%~23.71% respectively. The A/CNK ratios vary from 1.24 to 4.29. The Yangshan granites are also enriched in Cs, U, K, Pb, and depleted in Ba, Nb, La, Ce, Sr, Ti. Rare earth element(REE) contents of the granites range from 14.45×10~(-6) to 143.14×10~(-6)(average 70.31×10~(-6)), and significantly enriched in LREE with(La/Yb)_N ratios of 1.48~37.26(average 17.08). The REE patterns are characterized by slightly negative Eu anomalies, with δEu=0.50~1.21(average 0.77). Geochemical characteristics of major element and trace element show that these granites belong to peraluminous and calc-alkaline series. Compariing with the major and trace elements, geochronology, and Sm/Nd, Rb/Sr and Pb isotopes of the Yangshan granites, Bikou terrane, and Devonian Sanhekou section of the previous works, we propose that the granites were derived from partial melting of the Bikou group as a result of collision and crustal thickening, and were contaminated by the Devonian sedimentary rocks during ascending.
引文
陈衍景,翟明国,蒋少涌.2009.华北大陆边缘造山过程与成矿研究的重要进展和问题.岩石学报,25(11):2695-2726.
    陈衍景,张静,张复新,Pirajno F,李超.2004.西秦岭地区卡林-类卡林型金矿床及其成矿时间,构造背景和模式.地质论评,50(2):134-152.
    陈衍景.2010.秦岭印支期构造背景、岩浆活动及成矿作用.中国地质,37(4):854-865
    程斌,张复新,贺国芬.2006.甘肃文县地区阳山超大微细浸染型金矿床的成因与类型.地质通报,25(11):1354-1360.
    代堰锫,朱玉娣,王根厚,张连昌,陶宏,刘洋,吕亚博.2012.甘肃阳山金矿区安昌河-观音坝断裂带显微构造特征及地质意义.中国地质,39(3):729-739.
    郭俊华,毛世东,陈衍景,秦艳,杨福立,李建忠,南争路.2009.甘肃文县阳山金矿田地质特征及控矿地质因素分析.大地构造与成矿学,33(2):244-253.
    何书成.1989.四川青川-平武地区震旦纪冰成岩.四川地质学报,9(2):29-36.
    赖绍聪,李永飞,秦江锋.2007.碧口群西段董家河蛇绿岩地球化学及LA-ICP-MS锆石U-Pb定年.中国科学(D辑),37(增刊):262-270.
    雷时斌,齐金忠,朝银银.2010.甘肃阳山金矿带中酸性岩脉成岩年龄与成矿时代.矿床地质,29(5):869-880.
    雷时斌.2011.甘肃阳山金矿带构造-岩浆成矿作用及勘查找矿方向.北京:中国地质大学(北京)博士学位论文:39-60
    李建忠,喻光明,廖海龙,皮吉波,张亿其,刘洪波.2008.甘肃省文县阳山金矿带控矿构造特征及找矿方向.矿床地质,27(增刊):96-104.
    李晶,陈衍景,李强之,赖勇,杨荣生,毛世东.2007.甘肃阳山金矿流体包裹体地球化学和矿床成因类型.岩石学报,23(9):2144-2154.
    李晶,陈衍景,李强之,毛世东,秦艳,郭俊华,南争路,杨荣生.2008.甘肃阳山金矿碳氢氧同位素与成矿流体来源.岩石学报,24(4):817-826.
    李楠,杨立强,张闯,张静,雷时斌,王恒涛,王宏伟,高雪.2012.西秦岭阳山金矿带硫同位素特征:成矿环境与物质来源约束.岩石学报,28(5):1577-1587.
    李三忠,张国伟,李亚林,杨永成.2000.勉县地区勉略带内麻粒岩的发现及构造意义.岩石学报,16(2):220-226.
    李献华,刘颖,涂相林.1996.S型花岗岩中锆石U-Pb同位素体系的多阶段演化及年代学意义.矿物学报,16(2):170-177.
    李永飞,赖绍聪,秦江锋,刘鑫,王娟.2007.碧口火山岩系地球化学特征及Sr-Nd-Pb同位素组成--晋宁期扬子北缘裂解的证据.中国科学(D辑),37(增刊):295-306.
    刘红杰,陈衍景,毛世东,赵成海,杨荣生.2008.西秦岭阳山金矿带花岗斑岩元素及Sr-Nd-Pb同位素地球化学.岩石学报,24(5):1101-1111.
    刘伟,马瑛,范永香.2007.甘肃文县阳山金矿床成矿流体特征.资源环境与工程,21(2):87-94.
    刘远华,杨贵才,张轮,齐金忠,李文良.2010.西秦岭阳山超大型金矿床花岗岩岩石地球化学特征.黄金科学技术,18(6):1-7.
    卢海峰,王宗起,王涛.2007.西秦岭关家沟组地层时代、物源及其构造响应.大地构造与成矿学,31(3):315-321.
    卢兆良,林强,刘招君.2004.成因岩石学.长春:吉林大学出版社.
    罗锡明,齐金忠,袁士松,李志宏.2004.甘肃阳山金矿床微带元素及稳定同位素的地球化学研究.现代地质,18(2):203-209.
    骆金诚,赖绍聪,秦江锋,李学军,臧文娟,李海波.2010.碧口地块王坝楚花岗岩成因及其地质意义.西北大学学报(自然科学版),40(6):1505-1563.
    毛世东,杨荣生,秦艳,郭俊华.2009.甘肃阳山金矿田载金矿物特征及金赋存状态研究.岩石学报,25(11):2776-2790.
    毛世东,余金元,李建忠,南争路.2012.甘肃阳山超大型金矿地质地球化学特征及矿床成因.四川地质学报,32(增刊):50-59.
    孟献真,王根厚,王行军,陈胜男,陶宏.2012.甘肃阳山金矿构造-流体-金成矿作用关系.地质与勘探,48(3):580-591.
    齐金忠,李莉,杨贵才.2008.甘肃省阳山金矿床成因及成矿模式.矿床地质,27(1):81-87.
    齐金忠,杨贵才,罗锡明.2006.甘肃阳山金矿带构造岩浆演化与金矿成矿.现代地质,20(4):564-572.
    齐金忠,袁士松,李莉,范永香,刘伟,高秋斌,孙斌,郭俊华,李志宏.2003.甘肃省文县阳山特大型金矿床地质特征及控矿因素分析.地质评论,49(1):85-92.
    邱家骧.1991.应用岩浆岩岩石学.武汉:中国地质大学出版社:254-255.
    孙骥,魏启荣,杨奇荻,王志军,郝伟,梁云汉,张小强,王敬元.2012.阳山金矿带安坝里南斑岩脉锆石U-Pb年龄及岩石地球化学特征.地质科技情报,31(6):88-97.
    陶洪祥.1993.扬子板块北缘构造演化史.西安:西北大学出版社:9-13.
    王学明,邵世才,汪东波,陈源,林国芳.1999.甘肃文康地区金矿地质特征与找矿标志.有色金属矿产与勘查,8(4):220-226.
    王宗起,闫全人,闫臻,王涛,姜春发,高联达,李秋根,陈隽璐,张英利,刘平,谢春林,向忠金.2009.秦岭造山带主要大地构造单元的新划分.地质学报,83(11):1527-1546.
    文成敏.2006.甘肃省阳山金矿带金矿成矿特征及矿床成因研究.四川地质学报,26(4):223-227.
    吴春俊,王金荣,喻光明,吴继承,贾志磊.2008.甘肃省阳山金矿田金的赋存状态和金矿物特征.矿产与地质,22(4):353-356.
    夏林圻,夏祖春,徐学义,李向民,马中平.2007.碧口群火山岩岩石成因研究.地学前缘,14(3),84-101.
    肖庆辉,邓晋福,马大铨,洪大卫,莫宣学,卢欣祥,李志昌,汪雄武,马昌前,吴福元,罗照华,王涛.2002.花岗岩研究思维与方法.北京:地质出版社.
    徐夕生,贺振宇.2012.花岗岩研究进展.矿物岩石地球化学通报,31(3):205-209.
    闫全人,Hanson A D,王宗起,闫臻,Druschke P A,王涛,刘敦一,宋彪,姜春发.2004.扬子板块北缘碧口群火山岩的地球化学特征及其构造环境.岩石矿物学杂志,23(1):1-11.
    闫全人,王宗起,Hanson A D,Druschke P A,王涛,闫臻.2002.南秦岭横丹群浊积岩系:晚古生代发育于扬子板块被动陆缘上的弧前盆地充填物.地质通报,21(8-9):495-500.
    闫全人,王宗起,闫臻,Hanson A D,刘敦一,宋彪,简平,王涛.2003.碧口群火山岩的时代--SHRIMP锆石U-Pb测年结果.地质通报,22(6):456-458.
    阎凤增,齐金忠,郭俊华.2010.甘肃省阳山金矿地质与勘查.北京:地质出版社.
    杨贵才,齐金忠,董华芳,郭俊华,李志宏.2007.甘肃省文县阳山金矿床地质及同位素特征.地质与勘探,43(3):37-41.
    杨贵才,齐金忠.2008.甘肃省文县阳山金矿床地质特征及成矿物质来源.黄金科学技术,16(4):20-24.
    杨荣生,陈衍景,谢景林.2009.甘肃阳山金矿床含砷黄铁矿及毒砂的XPS研究.岩石学报,25(11):2791-2800.
    杨荣生,陈衍景,张复新,李志宏,毛世东,刘红杰,赵成海.2006.甘肃阳山金矿独居石Th-U-Pb化学年龄及其地质和成矿意义.岩石学报,22(9):2603-2610.
    余金元,李建忠,李勇.2010.甘肃省文县阳山金矿床成因探讨.四川地质学报,30(2):170-173.
    袁士松,李文良,张勇,常春郊.2008.甘肃省文县阳山超大型金矿床成矿作用及成矿模式.地质与资源,17(2):92-101.
    袁士松,张继武,齐金忠,刘志杰,金宝义.2004.甘肃阳山金矿构造控矿模式.黄金地质,10(4):32-34.
    袁士松.2007.甘肃省文县阳山特大型金矿床成矿作用研究.矿产与地质,21(4):404-409.
    张静,李临位,杨立强,宛家俊.2012.西秦岭阳山金矿床元素地球化学特征.矿床地质,31(增刊):815-816.
    张本仁,高山,张宏飞,韩吟文.2002.秦岭造山带地球化学.北京:中国科学出版社.
    张复新,侯俊富,张存旺,李晶,杨荣生.2007.甘肃阳山超大型卡林-类卡林型复合式金矿床特征.中国地质,34(6):1062-1070.
    张国伟,程顺有,郭安林,董云鹏,赖绍聪,姚安平.2004.秦岭-大别中央造山系南缘勉略古缝合带的再认识--兼论中国大陆主体的拼合.地质通报,23(9-10):846-853.
    张国伟,董云鹏,赖绍聪,郭安林,孟庆任,刘少锋,程顺有,姚安平,张宗清,裴先治,李三忠.2003.秦岭-大别造山带南缘勉略构造带与勉略缝合带.中国科学(D辑),33(12):1121-1135.
    张国伟,张本仁,袁学诚,肖庆辉.2001.秦岭造山带与大陆动力学.北京:科学出版社:855.
    张莉,杨荣生,毛世东,鲁颖淮,秦艳,刘红杰.2009.阳山金矿床锶铅同位素组成特征与成矿物质来源.岩石学报,25(11):2811-2822.
    张宗清,唐索寒,王进辉,张国伟,许继锋,杨永成.2002.秦岭勉略带中安子山麻粒岩的年龄.科学通报,47(22):1751-1755.
    赵成海.2009.甘肃阳山超大型金矿成因研究述评.矿物岩石地球化学通报,28(3):286-293.
    赵祥生,马少龙,邹湘华,修泽雷.1990.秦巴地区碧口群的时代、层序、火山作用及含矿性研究.中国地质科学院西安地质矿产研究所所刊,29:5-21.
    周乐尧.1991.甘肃省西成铅锌矿田矿源层的确定及其Pb-Zn活化机理研究.地球科学,16(2):199-206.
    Allegre C J and Minster J F.1978.Quantitative method of trace element behavior in magmatic processes.Earth and Planetary Science Letters,38:1-25.
    Brown G C and Fyfe W S.1970.The production of granitic melts during ultrametamorphism.Contributions to Mineralogy and Petrology,28:310-318.
    Calvin F M,Susanne M M and Russell W M.2003.Hot and cold granites?Implications of zircon saturation temperatures and preservation of inheritance.Geology,31(6):529-532.
    Collins W J.1998.Evaluation of petrogenetic models for Lachlan Fold Belt granitoids:Implications for crustal architecture and tectonic models.Australian Journal of Earth Sciences,45:483-500.
    Dong Y P,Zhang G W,Neubaue R F,Liu X M and Genser J.2011.Tectonic evolution of the Qinling orogen,China:Review and synthesis.Journal of Asian Earth Sciences,41:213-237.
    Druschke P,Andrew D H,Yan Q R,Wang Z Q and Wang T.2006.Stratigraphic and U-Pb SHRIMP detrital zircon evidence for a Neoproterozoic continental arc,central China:Rodinia implications.The Journal of Geology,114:627-636.
    Gromet L P and Silver L T.1987.REE variations across the Peninsular Ranges Batholith:Implications for batholithic petrogenesis and crustal growth in magmatic arcs.Journal of Petrology,28:75-125.
    Harrison T M,Aleinkoff J N and Compston W.1987.Observation and controls on the occurrence of inherited zircon in concord-type granitoids,New Hampshire.Geochimicaet Cosmochimica Acta,5l:2549-2568.
    Kemp A I S.2003.Plutonic boninite-like rocks in an anatectic setting:Tectonic implications for the Delamerian orogen in southeastern Australia.Geology,31:371-374.
    Li N,Chen Y J,Santosh M and Pirajno F.2015.Compositional polarity of Triassic granitoids in the Qinling Orogen,China:Implication for termination of the northernmost paleo-Tethys.Gondwana Research,27:244-257.
    Li N,Deng J,Yang L Q,Goldfarb R J,Zhang C,Marsh E,Lei S B,Koenig A and Lowers H.2013.Paragenesis and geochemistry of ore minerals in the epizonal gold deposits of the Yangshan gold belt,West Qinling,China.Mineralium Deposita,32:1-23.
    Mao S D,Chen Y J,Zhou Z J,Lu Y H,Qin Y and Yu J Y.2014.Zircon geochronology and Hf isotope geochemistry of the granitoids in the Yangshan gold field,western Qinling,China:Implications for petrogenesis,ore genesis and tectonic setting.Geological Journal,DOI:10.1002/gj.2589
    Mc Donough W F and Sun S S.1995.The composition of the Earth.Chemical Geology,120:23-53.
    Qi J Z,Yuan S S,Liu Z J,Liu D Y,Wang Y B,Li Z H,Guo JH,Sun B.2004.U-Pb SHRIMP dating of zircon from quartz veins of the Yangshan gold deposit in Gansu Province and its geological significance.Acta Geologica Sinica,78(2):443-451.
    Sun S S and Mcdonough W F.1989.Chemical and isotopic systematics of oceanic basalts:Implications for mantle composition and processe.Geological Society,London,Special Publications,42(1):313-345.
    Sun W D,Li S G,Chen Y D and Li Y J.2002.Timing of synorogenic granitoids in the South Qinling,central China:constraints on the evolution of the QinlingDabie orogenic belt.Journal of Geology,110:457-468.
    Sylvester P J.1998.Post-collision strongly peraluminous granites.Lithos,45(1):29-44.
    Tilton G R,Schreyer W and Schertl H P.1991.Pb-Sr-Nd isotopic behavior of deeply subducted crustal rocks from the Dora Maira massif,Western Alps,Italy:What is the age of the ultra-high pressure metamorphism.Contribution to Mineralogy Petrology,108:22-23.
    Tuttle O F and Bowen N L.1958.Origin of granite in the light of experimental studies in the system Na Al Si3O8-KAl Si3O8-Si O2-H2O.Geological Society of America Bulletin,74:1-200.
    Wang X C,Li X H,Li W X,Li Z X,Liu Y,Yang Y H,Liang X R and Tu X L.2008.The Bikou basalts in the northwestern Yangtze block,South China:Remnants of820-810 Ma continental flood basalts?Geological Society of America Bulletin,120:1478-1492.
    Wang X X,Wang T and Zhang C L.2013 Neoproterozoic,Paleozoic,and Mesozoic granitoid magmatism in the Qinling Orogen,China:Constraints on orogenic process.Journal of Asian Earth Sciences,72:129-151.
    Yan F Z and Li Q Z.2008.Yangshan gold deposit:The largest Carlin and Carlin-like type gold deposit in China.Acta Geologica Sinica,82:804-810.
    Yan Q R,Hanson A D,Wang Z Q,Druschke P A,Yan Z,Wang T,Liu D Y,Song B,Jian P,Zhou H and Jiang C F.2004.Neoproterozoic subduction and rifting on the northern margin of the Yangtze Plate,China:Implications for Rodinia reconstruction.International Geology Review,46:817-832.
    Yan Q R,Wang Z Q,Hanson A D,Drushke P A,Liu D Y,Song B,Jian P,Wang T and Jiang C F.2003.SHRIMPage and geochemistry of Bikou vocanic terrane:Implication for Neoproterozoic tectonics on the north margin of the Yangtze craton.Acta Geological Sinica,77(4):479-490.
    Zhang H F,Xiao L,Zhang L,Yuan H L and Jin L L.2007.Geochemical and Pb-Sr-Nd isotopic compositions of Indosinian granitoids from the Bikou block,northwest of the Yangtze plate:Constraints on petrogenesis,nature of deep crust and geodynamics.Science in China(Series D),50:972-983.

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