安徽月山闪长岩的成因探讨——锆石U-Pb定年及Hf同位素证据Petrogenesis of Yueshan Pluton:Zircon U-Pb Dating and Hf Isotope Evidence
刘园园;马昌前;张超;佘振兵;张金阳;
摘要(Abstract):
对安徽月山岩体开展了锆石原位U-Pb测年及Lu-Hf同位素研究。锆石的LA-ICP-MS年代学研究表明,月山闪长岩的U-Pb年龄为(139.3±1.5)Ma,与长江中下游成矿带早白垩世成铜岩体的年龄一致。月山闪长岩中的锆石具有均一的Hf同位素初始比值,介于0.282 430~0.282 491间。这些锆石的ε(Hf)(t)介于-9.05~-6.90间,亏损地幔模式年龄介于1.06~1.17 Ga间。结合长江中下游地区岩浆岩其他地球化学特征,认为月山岩体可能是在俯冲体系下由幔源岩浆经结晶分异作用且局部伴有一定程度的同化混染作用所形成。
关键词(KeyWords): 锆石;U-Pb定年;Hf同位素;月山岩体
基金项目(Foundation): 国家科学技术部国际科技合作项目(2007DFA21230);; 国家自然科学基金重点项目(40334037);; 国家自然科学基金委员会创新研究群体基金项目(40821061);; 教育部和国家外国专家局高等学校学科创新引智计划项目(B07039)
作者(Author): 刘园园;马昌前;张超;佘振兵;张金阳;
Email:
DOI:
参考文献(References):
- [1]谢家荣.中国之矿产时代与矿产区域[J].地质论评,1936,1(3):363-380.
- [2]常印佛,刘湘培,吴言昌.长江中下游铜铁成矿带[M].北京:地质出版社,1991.
- [3]马昌前,杨坤光,唐仲华,等.花岗岩类岩浆动力学——理论方法及鄂东花岗岩类例析[M].武汉:中国地质大学出版社,1994.
- [4]周涛发,岳书仓,刘晓东.长江中下游铜、金矿床密集区形成条件及矿床成因研究综述[J].地质科技情报,1999,18(3):51-54.
- [5]姚书振.“长江中下游铁、铜等成矿规律及隐伏矿床预测研究”成果[J].地质科技情报,1990,9(4):100-101.
- [6]张旗,王焰,钱青,等.中国东部燕山期埃达克岩的特征及其构造-成矿意义[J].岩石学报,2001,17(2):236-244.
- [7]王元龙,张旗,王焰.宁芜火山岩的地球化学特征及其意义[J].岩石学报,2001,17(4):565-575.
- [8]王强,赵振华,熊小林,等.底侵玄武质下地壳的熔融:来自安徽沙溪Adakite质富钠石英闪长玢岩的证据[J].地球化学,2001,30(4):352-362.
- [9]王强,赵振华,许继峰,等.扬子地块东部燕山期埃达克质(ada-kite-like)岩与成矿[J].中国科学:D辑,2002,32(增刊):127-136.
- [10]Xu J F,Shinjo R,Defant MJ,et al.Origin of mesozoic ada-kitic intrusive rocksinthe Ningzhen area of east China:Partialmelting of delaminatedlower continental crust?[J].Geology,2002,30(12):1 111-1 114.
- [11]王强,赵振华,许继峰,等.鄂东南铜山口、殷祖埃达克质(ada-kitic)侵入岩的地球化学特征对比:(拆沉)下地壳熔融与斑岩铜矿的成因[J].岩石学报,2004,20(2):351-360.
- [12]Wang Q,Xu J F,Zhao Z H,et al.Cretaceous high-potassiumintrusive rocks in the Yueshan-Hongzhen area of east China:Adakites in an extensional tectonic regi me within a continent[J].Geochemical Journal,2004,38(5):417-434.
- [13]Wang Q,Zhao Z H,Bao Z W,et al.Geochemistry and petro-genesis of the Tongshankou and Yinzu adakitic intrusive rocksand the associated porphyry copper-molybdenum mineralizationin southeast Hubei,east China[J].Resource Geology,2004,54(2):137-152.
- [14]Wang Q,Wyman D A,Xu J F,et al.Petrogenesis of Creta-ceous adakitic and shoshoniticigneous rocksinthe Luzong are-a,Anhui Province(eastern China):I mplications for geody-namics and Cu-Au mineralization[J].Lithos,2006,89(3-4):424-446.
- [15]Wang Q,Wyman D A,Xu J F,et al.Partial melting of thick-ened or delaminatedlower crust inthe middle of eastern China:I mplications for Cu-Au mineralization[J].The Journal of Ge-ology,2007,115(2):149-161.
- [16]Li J W,Zhao X F,Zhou MF,et al.Origin of the Tongshank-ou porphyry skarn Cu Mo deposit,eastern Yangtze craton,Eastern China:Geochronological,geochemical,and Sr Nd Hf i-sotopic constraints[J].MineraliumDeposita,2008,43(3):315-336.
- [17]汪洋,邓晋福,姬广义.长江中下游地区早白垩世埃达克质岩的大地构造背景及其成矿意义[J].岩石学报,2004,20(2):297-314.
- [18]周涛发,岳书仓,袁峰.安徽月山矿田成岩成矿作用[M].北京:地质出版社,2005.
- [19]董树文,邱瑞龙.安庆-月山地区构造作用与岩浆活动[M].北京:地质出版社,1993.
- [20]Dela Roche H,Leterrier J,Grande C P,et al.Aclassificationof volcanic and plutonic rocks using R1-R2 diagrams and majorelement analyses-its relationships and current nomenclature[J].Chemical Geology,1980,29(1-4):183-210.
- [21]路远发.GeoKit:一个用VBA构建的地球化学工具软件包[J].地球化学,2004,33(5):459-464.
- [22]邱瑞龙.安徽月山高钾闪长岩岩石学特征及岩石成因探讨[J].地质论评,1992,38(2):97-108.
- [23]Ludwig K R.User s manual for Isoplot3.00:A geochrono-logical toolkit for Microsoft Excel[M].Berkeley:BerkeleyGeochronlogical Center Special Publication,2003.
- [24]Andersen T.Correction of common lead in U-Pb analysesthat do not report204Pb[J].Chemical Geology,2002,192(1-2):59-79.
- [25]徐平,吴福元,谢烈文,等.U-Pb同位素定年标准锆石的Hf同位素[J].科学通报,2004,49(14):1 403-1 410.
- [26]Blichert-Toft J,Albarede F.The Lu-Hf isotope geochemis-try of chondrites and the evolution of the mantle-crust system[J].Earth and Planetary Science Letters,1997,148(1-2):243-258.
- [27]Griffin WL,Pearson NJ,Belousova E,et al.The Hf isotopecomposition of cratonic mantle:LAM-MC-ICPMS analysis ofzircon megacrysts in ki mberlites[J].Geochi mica et Cosmo-chi mica Acta,2000,64(1):133-147.
- [28]Scherer E,Munker C,Mezger K.Calibration of the lutetium-hafniumclock[J].Science,2001,293:683-687.
- [29]陈江峰,李学明,周泰禧,等.安徽月山岩体的40Ar/39Ar年龄及与其有关的成矿时代估计[J].现代地质,1991,5(1):91-99.
- [30]周涛发,袁峰,张鑫,等.安庆铜牛井热液脉型铜、钼、金矿床石英的40Ar-39Ar快中子活化年龄[J].地质论评,2003,49(2):212-216.
- [31]李波,陈江峰,郑永飞,等.安徽月山石英闪长岩氧同位素分馏、Rb-Sr等时线定年与矿物蚀变之间的关系[J].岩石学报,2004,20(5):1 185-1 192.
- [32]Sun WD,Xie Z,Chen J F,et al.Os-Os Dating of copper andmolybdenumdeposits along the Middle and Lower reaches ofthe Yangtze River,China[J].Economic Geology,2003,98(1):175-180.
- [33]毛景文,Stein H,杜安道,等.长江中下游地区铜金矿Re-Os年龄精测及其对成矿作用的指示[J].地质学报,2004,78(1):121-131.
- [34]陈江峰,喻钢,杨刚,等.安徽沿江江南晚中生代岩浆-成矿年代学格架[J].安徽地质,2005,15(3):161-169.
- [35]王彦斌,刘敦一,蒙义峰,等.安徽铜陵新桥铜-硫-铁-金矿床中石英闪长岩和辉绿岩锆石SHRI MP年代学及其意义[J].中国地质,2004,31(2):169-173.
- [36]吴淦国,张达,狄永军,等.铜陵矿集区侵入岩SHRI MP锆石U-Pb年龄及其深部动力学背景[J].中国科学:D辑,2008,38(5):630-645.
- [37]徐晓春,陆三明,谢巧勤,等.安徽铜陵狮子山矿田岩浆岩锆石SHRI MP定年及其成因意义[J].地质学报,2008,82(4):500-509.
- [38]王彦斌,刘敦一,曾普胜,等.安徽铜陵地区幔源岩浆底侵作用的时代——朝山辉石闪长岩锆石SHRI MP定年[J].地球学报,2004,25(4):423-427.
- [39]张达,吴淦国,狄永军,等.铜陵凤凰山岩体SHRI MP锆石U-Pb年龄与构造变形及其对岩体侵位动力学背景的制约[J].地球科学:中国地质大学学报,2008,31(6):823-829.
- [40]Di YJ,Wu G G,Zhang D,et al.SHRI MP U-Pb zircon geo-chronology of the xiaotongguanshan and shatanjiao intrusionsand its petrological i mplications in the Tongling area,Anhui[J].Acta Geologica Sinica(English Edition),2005,79(6):795-802.
- [41]杜杨松,李顺庭,曹毅,等.安徽铜陵铜官山矿区中生代侵入岩的形成过程——岩浆底侵、同化混染和分离结晶[J].现代地质,2007,21(1):71-77.
- [42]周涛发,宋明义,范裕,等.安徽庐枞盆地中巴家滩岩体的年代学研究及其意义[J].岩石学报,2007,23(10):2 379-2 386.
- [43]楼亚儿.安徽繁昌中生代侵入岩的特征和成因研究[D].北京:中国地质大学,2005.
- [44]徐夕生,范钦成,O Reilly S Y,等.安徽铜官山石英闪长岩及其包体锆石U-Pb定年与成因探讨[J].科学通报,2004,49(18):1 883-1 891.
- [45]杨小男,徐兆文,张军,等.安徽狮子山矿田南洪冲岩体形成时代及成因机制研究[J].岩石学报,2007,23(6):1 543-1 551.
- [46]陈江峰,谢智,郑永飞,等.皖东侵入岩矿物Rb-Sr和Ar-Ar年代学及其与氧同位素平衡之间的关系[J].高校地质学报,2003,9(2):172-184.
- [47]资锋,王强,戴圣潜,等.皖东滁州、上腰铺埃达克质侵入岩年代学及地球化学特征岩石成因与成矿意义[J].岩石学报,2007,23(6):1 485-1 500.
- [48]吴才来,周若,黄许陈,等.铜陵地区中酸性侵入岩年代学研究[J].岩石矿物学杂志,1996,15(4):299-306.
- [49]Li J W,Zhao X F,Zhou M F,et al.Late Mesozoic mag-matismfromthe Daye region,eastern China:U-Pb ages,petro-genesis,and geodynamic i mplications[J].Contributions toMineralogy and Petrology,2009,157(3):383-409.
- [50]李进文,李旭辉,裴荣富,等.江西武山铜矿南矿带辉钼矿Re-Os同位素年龄及其地质意义[J].地质学报,2007,81(6):801-807.
- [51]吴良士,邹晓秋.江西城门山铜矿铼-锇同位素年龄研究[J].矿床地质,1997,16(4):376-381.
- [52]毛景文,Stein H,杜安道,等.长江中下游地区铜金(钼)矿Re-Os年龄精测及其对成矿作用的指示[J].地质学报,2004,78(1):121-131.
- [53]Wang J Z,Li J W,Zhao X F,et al.Re-Os dating of pyrrho-tite from the Chaoshan gold skarn,eastern Yangtze craton,eastern China[J].International Geology Review,2008,50(4):392-406.
- [54]梅燕雄,毛景文,李进文,等.安徽铜陵大团山铜矿床层状矽卡岩矿体中辉钼矿Re-Os年龄测定及其地质意义[J].地球学报,2005,26(4):327-331.
- [55]蒙义峰,杨竹森,曾普胜,等.铜陵矿集区成矿流体系统时限的初步厘定[J].矿床地质,2004,23(3):271-280.
- [56]余金杰,毛景文.宁芜玢岩铁矿钠长石40Ar-39Ar定年及意义[J].自然科学进展,2002,12(10):1 059-1 063.
- [57]Yu J J,Mao J W.40Ar?39Ar dating of albite and phlogopitefromporphyryiron depositsinthe Ningwu basinsin east-cen-tral China andits significance[J].Acta Geologica Sinica(Eng-lish Edition),2004,78(2):435-442.
- [58]谢桂青,毛景文,李瑞玲,等.鄂东南地区Cu-Au-Mo-(W)矿床的成矿时代及其成矿地球动力学背景探讨:辉钼矿Re-Os同位素年龄[J].矿床地质,2006,25(1):43-52.
- [59]曾普胜,杨竹森,蒙义峰,等.安徽铜陵矿集区燕山期岩浆流体系统时空结构及成矿[J].矿床地质,2004,23(3):298-309.
- [60]王建中,李建威,赵新福,等.铜陵地区朝山矽卡岩型金矿床及含矿岩体的成因:40Ar/39Ar年龄、元素地球化学及多元同位素证据[J].岩石学报,2008,24(8):1 875-1 888.
- [61]Kay R W.Aleutian magnesian andesites:Melts fromsubduc-ted Pacific ocean crust[J].Journal of Volcanology and Geo-thermal Research,1978,4(1-2):117-132.
- [62]Defant MJ,Drummond MS.Derivation of some modern arcmagmas by melting of young subducted lithosphere[J].Na-ture,1990,347:662-665.
- [63]Atherton M P,Petford N.Generation of sodium-rich mag-mas fromnewly underplated basaltic crust[J].Nature,1993,362:144-146.
- [64]Petford N,Atherton M.Na-rich partial melts from newlyunderplated basaltic crust:The Cordillera Blanca Batholith,Peru[J].Journal of Petrology,1996,37(6):1 491-1 521.
- [65]Xu W L,Hergt J M,Gao S,et al.Interaction of adakiticmelt-peridotite:I mplications for the high-Mg#signature ofMesozoic adakitic rocksin the eastern North China Craton[J].Earth and Planetary Science Letters,2008,265(1-2):123-137.
- [66]Gao S,Rudnick R L,Yuan HL,et al.Recyclinglower conti-nental crust inthe North China craton[J].Nature,2004,432:892-897.
- [67]Macpherson C G,Dreher S T,Thirl wall MF.Adakites with-out slab melting:High pressure differentiation of island arcmagma,Mindanao,the Philippines[J].Earth and PlanetaryScience Letters,2006,243(3-4):581-593.
- [68]Castillo P R,Janney P E,Solidum R U.Petrology and geo-chemistry of Camiguin island,southern Philippines:Insightsto the source of adakites and other lavas in a complex arc set-ting[J].Contributions to Mineralogy and Petrology,1999,134(1):33-51.
- [69]陈江峰,周泰禧,李学明,等.安徽南部燕山期中酸性侵入岩的源区锶、钕同位素制约[J].地球化学,1993,22(3):261-268.
- [70]邢凤鸣,徐祥.铜陵地区高钾钙碱系列侵入岩[J].地球化学,1996,25(1):29-38.
- [71]Zhang S B,Zheng Y F,Wu Y B,et al.Zircon isotope evi-dence for≥3.5 Ga continental crust in the Yangtze craton ofChina[J].Precambrian Research,2006,146(1):16-34.
- [72]Zhang S B,Zheng Y F,Wu Y B,et al.Zircon U-Pb age andHf isotope evidence for 3.8 Ga crustal remnant and episodic re-working of Archean crust in South China[J].Earthand Plan-etary Science Letters,2006,252(1-2):56-71.
- [73]邢凤鸣,徐祥,李志昌.长江中下游早元古代基底的发现及意义[J].科学通报,1993,38(20):1 883-1 886.
- [74]Rapp R P,Shi mizu N,Norman MD,et al.Reaction betweenslab-derived melts and peridotite in the mantle wedge:Ex-peri mental constraints at 3.8 GPa[J].Chemical Geology,1999,160(4):335-356.
- [75]陈江峰,周泰禧,邢凤鸣,等.长江中下游岩带含铜岩体的Pb、Sr、Nd同位素特征[J].地球学报,1994,30-31(1-2):111-116.
- [76]周涛发,岳书仓,袁峰,等.安徽月山岩体地球化学特征及成因机理分析[J].高校地质学报,2001,7(1):70-80.
- [77]周涛发,岳书仓.安徽月山地区闪长岩类地质地球化学研究[J].火山地质与矿产,1995,16(3):20-30.
- [78]闫峻,陈江峰,喻钢,等.长江中下游晚中生代中基性岩的铅同位素特征:富集地幔的证据[J].高校地质学报,2003,9(2):195-206.
- [79]高庚,徐兆文,杨小男,等.安徽铜陵白芒山辉石闪长岩体的成因:Sr-Nd-Pb-O同位素制约[J].高校地质学报,2006,42(3):269-279.
- [80]闫峻,陈江峰,谢智,等.长江中下游地区蝌蚪山晚中生代玄武岩的地球化学研究:岩石圈地幔性质与演化的制约[J].地球化学,2005,34(5):455-469.
- [81]谢智,李全忠,陈江峰,等.庐枞早白垩世火山岩的地球化学特征及其源区意义[J].高校地质学报,2007,13(2):235-249.
- [82]刘洪,邱检生,罗清华,等.安徽庐枞中生代富钾火山岩成因的地球化学制约[J].地球化学,2002,31(2):129-140.
- [83]Ma C Q,Carl E,Xu C H,et al.The roots of the Dabieshanultrahigh-pressure metamorphic terrane:constraints fromgeo-chemistry and Nd-Sr isotope systematics[J].Precabrian Re-search,2000,102(3-4):279-301.
- [84]马昌前,明厚利,杨坤光.大别山北麓的奥陶纪岩浆弧:侵入岩年代学和地球化学证据[J].岩石学报,2004,20(3):393-402.