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地质学报  2006 

江苏东海片麻状碱性花岗岩的地球化学及其构造指示意义

, PP. 1877-1891

Keywords: 片麻状碱性花岗岩,地球化学,构造环境,新元古代,江苏东海

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Abstract:

江苏东海地区构造上位于苏鲁造山带的西南缘,区内出露新元古代片麻状碱性花岗岩,其特征矿物组合为石英+钾长石+钠-更长石+霓(辉)石、亚铁钠闪石。地球化学上,该套岩石具有富硅(SiO2=73.43%~77.38%)、富碱(ALK=8.19%~9.53%),铁镁比值高[FeO*/(FeO*+MgO)=0.83~0.94],CaO、MgO含量低,富Ga、Y、Zr、Hf,贫Sr、P、Ti,镓铝比值高(104×Ga/Al=2.76~5.15),轻重稀土分馏显著[(La/Yb)N=2.08~17.89],并具有中―强的铕亏损(δEu=0.12~0.66)等特点。在花岗岩成因类型判别图解中,它们均投影在A型花岗岩区,结合岩石具有过碱(AKI=0.99~1.22)和相对贫铝(A/NKC=0.78~0.93)的化学组成特征,表明它们应属过碱性A型花岗岩。在微量元素蛛网图上,这套岩石表现出较明显的Nb、Ta、Ti负异常,保留有先期“弧”岩浆作用产物的地球化学印记,其Y/Nb和Y/Ta值也较高(分别为1.85~9.72和4.71~30.14),在A型花岗岩岩石学亚类判别图解中,它们均投影在产于后造山环境的A2型花岗岩区。根据对矿物化学和全岩地球化学组成及产出动力地质背景的全面分析,表明这套岩石应形成于从碰撞造山转向伸展塌陷(collapse)的最早阶段,而不应是同裂谷阶段岩浆作用(syn-riftmagmatism)的产物。这一认识对于进一步了解新元古代苏鲁造山带的构造演化及深入探讨Rodinia超大陆的裂解机制具有重要意义。

References

[1]  程裕淇,刘敦一,Williams I S,简平,庄育勋,高天山.2000.大别山碧溪岭深色榴辉岩和片麻状花岗质岩石SHRIMP 分析--晋宁期高压-超高压变质作用的同位素年代学依据.地质学报,74(3):193~205.
[2]  樊金涛.2001.苏东北多期A型花岗岩及其成岩构造环境.江苏地质,25(4):206~214.
[3]  黄洁,郑永飞,吴元保,赵子福.2005.苏鲁造山带五莲地区岩浆岩元素和同位素地球化学研究.岩石学报,21(3):545~568.
[4]  刘昌实,陈小明,陈培荣,王汝成,胡欢.2003.A型岩套的分类、判别标志和成因.高校地质学报,9(4):573~591.
[5]  刘福来,许志琴,杨经绥,张泽明,薛怀民,李天福.2004.中国大陆科学钻探工程主孔及周边地区花岗质片麻岩的地球化学性质和超高压变质作用标志的识别.岩石学报,20(1):9~26.
[6]  刘建文,张希道,栾元滇,王兰中,张忠义,王炳颖.1997.岚山头一带含霓石碱长花岗岩的基本特征及其地质意义.山东地质,13(1):50-59.
[7]  孟繁聪,许志琴,张泽明,刘福来.2003.苏北中生代碰撞后花岗岩的地球化学特征及其地质意义.地质学报,77(4):566~576.
[8]  王沛成,刘建文,宋志勇,徐洪岩,周汝国.2001.胶南-威海造山带与罗迪尼亚(Rodinia)超大陆相关问题的初步探讨.山东地质,17(6):27~31.
[9]  许志琴,刘福来,戚学祥,张泽明,杨经绥,曾令森.2006.南苏鲁超高压变质地体中罗迪尼亚超大陆裂解事件的记录.岩石学报,22(7):1745~1760.
[10]  杨启军,钟增球.2004.大别-苏鲁超高压地体中面理化含榴花岗岩的成因研究.地球科学,29(2):169~176.
[11]  Xu S T,Okay A I,Ji S Y,Sengor A M C,Su W,Liu Y,Jiang L.1992.Diamond from the Dabieshan metamorphic rocks and its implication for tectonic setting.Science,265:80~82.
[12]  Yang J J,Jahn B M.2000.Deep subduction of mantle-derived garnet peridotites from the Su-Lu UHP metamorphic terrane in China.Journal of Metamorphic Geology,18:167~180.
[13]  Zheng Y F,Wu Y B,Zhao Z F,Zhang S B,Xu P,Wu F Y.2005.Metamorphic effect on zircon Lu-Hf and U-Pb isotope systems in ultrahigh-pressure eclogite-facies metagranite and metabasite.Earth and Planet Science Letters,240:378~400.
[14]  张成立,陈丹玲,刘良,袁洪林,张国伟,柳小明,王涛,晏云翔.2004.北秦岭新元古代后碰撞花岗岩的确定及其构造意义.地学前缘,11(3):33~42.
[15]  张宏飞,钟增球,高山.2001.大别山西部面理化含榴花岗岩锆石U-Pb年龄.科学通报,46(10):843~846.
[16]  赵子福,郑永飞,陈斌,吴元保.2005.中国大陆科学钻探工程主孔(734~933m)榴辉岩和片麻岩元素及Sr-Nd同位素地球化学研究.岩石学报,21(2):325~338.
[17]  Ames L,Tilton G R,Zhou G.1993.Timing of collision of the Sino-Korean and Yangtze cratons:U-Pb zircon dating of coesite-bearing eclogites.Geology,21:339~342.
[18]  Ayers J C,Dunkle S,Gao S,Miller C F.2002.Constraints on timing of peak and retrograde metamorphism in the Dabie Shan ultrahigh-pressure metamorphic belt,east-central China,using U-Th-Pb dating of zircon and monazite.Chemical Geology,186:315~331.
[19]  Eby G N.1990.The A-type granitoids:A review of their occurrence and chemical characteristics and speculations on their petrogenesis.Lithos,26:115~134.
[20]  Gilbert M C,Helz R T,Popp R K,Spear F S.1982.Experimental studies of amphibole stability.In:Veblen D R,Ribbe P H,eds.Amphiboles:Petrology and Experimental Phase Relations.Mineral.Soc.Am.Rev.Mineral.9B,229~353.
[21]  Irber W.1999.The lanthanide tetrad effect and its correlation with K/Rb,Eu/Eu?,Sr/Eu,Y/Ho,and Zr/Hf of evolving peraluminous granite suites.Geochimica et Cosmochimica Acta,63(3~4):489~508.
[22]  Jahn B M.1998.Geochemical and isotopic characteristics of UHP eclogites and ultramafic rocks of the Dabie orogen:In:Hacker B R,Liou J G,eds.When Continents Collide:Geochemistry of Ultrahigh-Pressure Rocks.Kluwer Academic Publishing,Dordrecht,203~239.
[23]  Jung S,Mezger K,Hoernes S.1998.Petrology and geochemistry of syn-to post-collisional metaluminous A-type granites-a major and trace element and Nd-Sr-Pb-O-isotope study from the Proterozoic Damara Belts,Namibia.Lithos,45:147~175.
[24]  Katongo C,Koller F,Kloetzli U,Koeberl C,Tembo F,Waele B D.2004.Petrography,geochemistry,and geochronology of granitoid rocks in the Neoproterozoic-Paleozoic Lufilian-Zambezi belt,Zambia:Implications for tectonic setting and regional correlation.Journal of African Earth Sciences,40:219~244.
[25]  Leake B E,Woolley A R,Arps C E S,Birch W D,Gilbert M C,Grice J D,Hawthorne F C,Kato A,Kisch H J,Krivovichev V G,Linthout K,Laird J,Mandarino J A,Maresch W V,Nickel E H,Rock N M S,Schumacher J C,Smith D C,Stephenson N C N,Ungaretti L,Whittaker E J W,Youzhi G,1997.Nomenclature of amphiboles:report of the subcommittee on amphiboles of the international mineralogical association,commission on new minerals and mineral names.Canadian Mineralogist,35:219~246.
[26]  Li S G,Jagoutz E,Chen Y Z,Li Q L.2000.Sm-Nd and Rb-Sr isotopic chronology and cooling history of ultrahigh pressure metamorphic rocks and their country rocks at Shuanghe in the Dabie Mountains,Central China.Geochimica et Cosmochimica Acta,64(6):1077~1093.
[27]  Li Z X,Li X H,Kinny P D,Wang J,Zhang S,Zhou H W.2003.Geochronology of Neoproterozoic syn-rift magmatism in the Yangtze Craton,South China and correlations with other continents:evidence for a mantle superplume that broke up Rodinia.Precambrian Research,122:85~109.
[28]  Liou J G,Zhang R Y,Bor-ming Jahn.1997.Petrology,geochemistry and isotope data on an ultrahigh-pressure jadeite quartzite from Shuanghe,Dabie Mountains,east-central China.Lithos,41:59~78.
[29]  Liu F L,Xu Z Q,Katayama I,Yang J S,Maruyama S,Liou J G.2001.Mineral inclusions in zircon of para-and orthogneiss from pre-pilot drillhole CCSD-PP1,Chinese Continental Scientific Drilling Project.Lithos,59:199~215.
[30]  Liu F L,Xu Z Q,Xue H M.2004b.Tracing the protolith,UHP metamorphism,and exhumation ages of orthogneiss from the SW Sulu terrane(eastern China):SHRIMP U-Pb dating of mineral inclusion-bearing zircons.Lithos,78:411~429.
[31]  McLelland J,Daly J S,McCulloch J M.1996.The Grenville Orogenic Cycle (ca.1350-1000 Ma):an Adirondack perspective.Tectonophysics,256:1~28.
[32]  Munyanyiwa H,Hanson R E,Blenkinsop T G,Treloar P J.1997.Geochemistry of amphibolites and quartzofeldspathic gneisses in the Pan-African Zambezi belt,northwest Zimbabwe:evidence for bimodal magmatism in a continental rift setting.Precambrian Research,81:179~196.
[33]  Nesbitt H,Young G M.1982.Early Proterozoic climates and plate motions inferred from major elements chemistry of lutites.Nature,299:715~717.
[34]  Qiu J S,Wang D Z,McInnes B I A,Jiang S Y,Wang R C,Kanisawa S.2004.Two subgroups of A-type granites in the coastal area of Zhejiang and Fujian Provinces,SE China:age and geochemical constraints on their petrogenesis.Transactions of the Royal Society of Edinburgh:Earth Sciences,95:227~236.
[35]  Schumacher J C.1997.The estimation of the proportion of ferric iron in the electron-microprobe analysis of amphiboles.Canadian Mineralogist,35:238~246.
[36]  Spear F S,Kimball C.1984.RECAMP-a FORTRAN IV program for estimating Fe3+ contents in amphiboles.Comput.Geosci.,10:317~325.
[37]  Tollo R P,Aleinikoff J N,Bartholomew M J,Rankin D W.2004.Neoproterozoic A-type granitoids of the central and southern Appalachians:intraplate magmatism associated with episodic rifting of the Rodinian supercontinent.Precambrian Research,128:3~38.
[38]  Volkova N I,Frenkel A E,Budanov V I,Lepezin G G.2004.Geochemical signatures for eclogite protolith from the Maksyutov Complex,South Urals.Journal of Asian Earth Science,23:745~759.
[39]  Wang X M,Liou J G.1991.Regional ultrahigh-pressure coesite-bearing eclogitic terrane in central China:evidence from country-rocks,gneiss,marble,and metapelite.Geology,19:933~936.
[40]  Watson E B,Harrison T M.1983.Zircon saturation revisited:temperature and composition effects in a variety of crustal magma types.Earth and Planet Science Letters,64:295~304.
[41]  樊金涛.2000.苏北牛山花岗片麻岩原岩成因类型、成岩时代及其地质意义.前寒武纪研究进展,23(4):213~220.
[42]  洪大卫,王式?,韩宝福,靳满元.1995,碱性花岗岩的构造环境分类及其鉴别标志.中国科学(B辑),25(4):418~426.
[43]  简平,刘敦一,杨巍然,Williams I S.2000.大别山西部河南罗山熊店加里东期榴辉岩锆石特征及SHRIMP分析结果.地质学报,74(4):259~264.
[44]  刘福来,许志琴,宋彪.2003.苏鲁地体超高压和退变质时代的厘定:来自片麻岩锆石微区SHRIMP U-Pb定年的证据,地质学报,77:229~237.
[45]  刘福来,许志琴,杨经绥,张泽明,薛怀民,孟繁聪,李天福,陈世忠.2005.中国大陆科学钻探工程主孔2000~3000米正、副片麻岩的地球化学性质及其成因机制.岩石学报,21(2):305~324.
[46]  陆松年,陈志宏,李怀坤,郝国杰,周红英,相振群.2004.秦岭造山带中-新元古代(早期)地质演化.地质通报,23(2):107~112.
[47]  宋明春,金振民,王来明,张希道,李远友.2003.鲁东官山榴辉岩与围岩接触关系的新发现及其对年代学的启示.地质学报,77(2):238~244.
[48]  王超,刘良,车自成,陈丹玲,张安达,罗金海.2006.阿尔金南缘榴辉岩带中花岗片麻岩的时代及构造环境探讨.高校地质学报,12(1):74~82.
[49]  王涛,张宗清,王晓霞,王彦斌,张成立.2005.秦岭造山带核部新元古代碰撞变形及其时代.地质学报,79(2):220~232.
[50]  吴荣新,郑永飞,吴元保.2005.皖南石耳山新元古代花岗岩锆石U-Pb定年以及元素和氧同位素地球化学研究.高校地质学报,11(3):364~382.
[51]  鄢全树,钟增球,周汉文.2005.大别超高压变质地体四道河地区岩石学研究.岩石矿物学杂志,24(3):186~196.
[52]  杨经绥,刘福来,吴才来,万渝生,张建新,史仁灯,陈松永.2003.中央碰撞造山带中两期超高压变质作用:来自含柯石英锆石的定年证据.地质学报,77(4):463~477.
[53]  杨启军,钟增球,周汉文.2003.大别-苏鲁超高压地体折返过程中岩石组合演化的地球化学约束.地球科学,28(3):241~249.
[54]  杨巍然,简平,韩郁菁.2002.大别造山带加里东期高压超高压变质作用的确定及其意义.地学前缘,9(4):273~283.
[55]  张利,钟增球,张本仁,刘勇胜,胡圣虹.2004.桐柏-大别造山带高压变质单元面理化(含榴)花岗岩地球化学及其对岩石成因的限制.地球化学,33(3):232~242.
[56]  Ames L,Zhou G,Xiong B.1996.Geochronology and isotopic character of ultrahigh-pressure metamorphism with implications for collision of the Sino-Korean and Yangtze cratons,central China.Tectonics,15:472~489.
[57]  Culshaw N,Dostal J.1997.Sand Bay gneiss association,Grenville Province,Ontario:a Grenvillian rift-(and-drift) assemblage stranded in the Central Gneiss Belt? Precambrian Research,85:97~113.
[58]  Eby G N.1992.Chemical subdivision of the A-type granitoids:Petrogenetic and tectonic implications.Geology,20(7):641~644.
[59]  Hacker B R,Ratschbacher L,Webb L,Ireland T,Walker D,Dong S W.1998.U/Pb zircon ages constrain the architecture of the ultrahigh-pressure Qinling-Dabie orogen.Earth and Planetary Science Letters,161:215~230.
[60]  Jahn B M,Rumble D,Lion J G.2003.Geochemistry and isotope tracer study of UHP metamorphic rocks.In:Carswell D A,Compagnoni R,eds.Ultrahigh Pressure Metamorphism.EMU Notes Minera1,5:365~414.
[61]  Kebede T,Koeberl C.2003.Petrogenesis of A-type granitoids from the Wallagga area,western Ethiopia:constraints from mineralogy,bulk-rock chemistry,Nd and Sr isotopic compositions.Precambrian Research,121:1~24.
[62]  King P L,White A J R,Chappell B W,Allen C M.1997.Characterization and origin of aluminous A-type granites from the Lachlan Fold belt,Southeastern Australia.Journal of Petrology,38:371~391.
[63]  Li S G,Chen Y,Ge N J,Liu D L,Zhang Z,Zhang Q D,Zhao D M.1993.U-Pb zircon ages of eclogite and gneiss from the Qingdao area:evidence for the Later Proterozoic magmatism in the Jiaonan Group.Chinese Science Bulletin,38:1773~1777.
[64]  Li X H,Li Z X,Ge W C,Zhou H W,Li W X,Liu Y,Wingate M T D.2003.Neoproterozoic granitoids in South China:crustal melting above a mantle plume at ca.825 Ma? Precambrian Research,122:45~83.
[65]  Lindsay J F,Korsch R J,Wilford J R.1987.Timing the breakup of a Neoproterozoic supercontinent:Evidence from Australian intrac-ratonic basins.Geology,15:1061~1064.
[66]  Ling W L,Gao S,Zhang B R,Li H M,Liu Y,Cheng J P.2003.Neoproterozoic tectonic evolution of the northwestern Yangtze craton,South China:implications for amalgamation and break-up of the Rodinia Supercontinent.Precambrian Research,122:111~140.
[67]  Liou J G,Hacker B R,Zhang R Y.2000.Into the forbidden zone.Science,287:1215~1216.
[68]  Liu F L,Xu Z Q.2004a.Fluid inclusions hidden in coesite-bearing zircons in ultrahigh-pressure metamorphic rocks from southwestern Sulu terrane in eastern China.Chinese Science Bulletin,49:396~404.
[69]  McDonough W F,Sun S S.1995.The composition of the Earth.Chemical Geology,120:223~253.
[70]  Meert J G,Torsvik T H.2003.The making and unmaking of a supercontinent:Rodinia revisited.Tectonophysics,375 (1-4):261~288.
[71]  Morimoto N,Fabries J,Ferguson A K,Ginzburg I V,Ross M,Seifert F A,Zussman J,Aoki K,Gottardi G.1988.Nomenclature of pyroxenes.American Mineralogist,73:1123~1133.
[72]  Okay A I,Sengor A M C.1992.Evidence for intra-continental thrust related exhumation of the ultra-high pressure rocks in China.Geology,20:411~414.
[73]  Rowley D B,Xue F,Tucker R D,Peng Z X,Baker J,Davis A.1997.Ages of ultrahigh-pressure metamorphism and protolith orthogneisses from the eastern Dabieshan:U-Pb zircon geochronology.Earth and Planetary Science Letters,151:191~203.
[74]  Smith D R,Barnes C,Shannon W,Roback R,James E.1997.Petrogenesis of Mid-Proterozoic granitic magmas:examples from central and west Texas.Precambrian Research,85:53~79.
[75]  Taylor S R,McLennan.1985.The continental crust:its composition and evolution.Oxford:Blackwell.
[76]  Volkert R A,Feigenson M D,Patino L C,Delaney J S,Drake Jr.A A.2000.Sr and Nd isotopic compositions,age and petrogenesis of A-type granitoids of the Vernon Supersuite,New Jersey Highlands,USA.Lithos,50:325~347.
[77]  Wang X M,Liou J G,Mao H K.1989.Coesite-bearing eclogites from the Dabie mountains in central China.Geology,19:933~936.
[78]  Wang X M,Zhang R Y,Liou J G.1995.Ultrahigh-pressure metamorphic terrane in eastern central China.In:Coleman R G,Wang X,eds.Ultrahigh-Pressure Metamorphism.Cambridge Press,356~390.
[79]  Whalen J B,Currie K L,Chappell B W.1987.A-type granites:geochemical characteristics,discrimination and petrogenesis.Contributions to Mineralogy and Petrology,95:407~419.
[80]  Ye K,Cong B L,Ye D N.2000.The possible subduction of continental material to depths greater than 200 km.Nature,407:734~736.
[81]  Zhang R Y,Hirajima T,Bannos S,Cong B L,Liou J G.1995.Petrology of ultrahigh-pressure rocks from the southern Su-Lu region,eastern China.Journal of Metamorphic Geology,13:659~975.
[82]  Zheng Y F,Fu B,Gong B,Li L.2003.Stable isotope geochemistry of ultrahigh pressure metamorphic rocks from the Dabie-Sulu orogen in China:implications for geodynamics and fluid regime.Earth Science Reviews,1276:1~57.
[83]  Zheng Y F,Wu Y B,Chen F K,Gong B,Li L,Zhao Z F.2004.Zircon U-Pb and oxygen isotope evidence for a large-scale 18O depletion event in igneous rocks during the Neoproterozoic.Geochimica et Cosmochimica Acta,68(20):4145~4165.

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