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地质通报  2011 

皖南祁门地区东源钨钼矿区花岗闪长斑岩SHRIMP锆石U-Pb年龄和Hf同位素特征

, PP. 1514-1529

Keywords: 花岗闪长斑岩,SHRIMP锆石U-Pb测年,锆石Hf同位素,皖南东源矿区

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Abstract:

江家等系列花岗闪长斑岩是皖南祁门县东源钨钼矿区含矿岩体的组成部分,位于东源花岗闪长岩的西侧。对江家和方村花岗闪长斑岩进行的SHRIMP锆石U-Pb测年结果表明,江家、方村花岗闪长斑岩的结晶年龄为149~152Ma,与富钨的东源花岗闪长岩相近。岩石地球化学和锆石Hf同位素分析显示,江家等系列花岗闪长斑岩源区具有复杂的多成分端元,其中老锆石核的正εHf值反映了成岩岩浆对晋宁期岩浆岩的继承,震荡岩浆环带的负εHf值(-39.5~-2.86)指示源区的主要成分为古老的地壳物质,有少量地幔物质的混染。全岩锆石饱和温度(737~913°C)显示岩浆组成中有幔源物质的贡献。

References

[1]  Morel, MLA ;Nebel, O ;Nebel-Jacobsen, YJ ;Miller, JS ;Vroon, PZ,Hafnium isotope characterization of the GJ-1 zircon reference material by solution and laser-ablation MC-ICPMS,Chemical geology?,2008, 255(1/2).
[2]  安徽省地质调查院,1:25万安庆市幅区域地质调查报告,,2005.
[3]  常印佛;邓晋福;杜建国,中国东南地区(大别山-台湾走廊带)Cu、Au、Ag、Pb、Zn、Fe成矿作用与资源潜力――成矿区带形成的四维结构,,2002.
[4]  周涛发;袁峰;侯明金.江南隆起带东段皖赣相邻区燕山期花岗岩类的成因及形成的地球动力学背景[J].矿物岩石,2004(3)
[5]  袁峰;周涛发;范裕.皖赣相邻区燕山期花岗岩类构造背景及其意义[J].合肥工业大学学报(自然科学版),2005(9)
[6]  Waston E B;Harrison T M,Zircon saturation revisited:temperature and composition effects in a variety of crustal magma types,Earth and Planetary Science Letters,1983.
[7]  Wu R X;Zheng Y F;Wu Y B Reworking of juvenile crust:Element and isotope evidence from Neoproterozoic granodiorite in South China [J] 2006 doi:10.1016/j.precamres.2006.01.012
[8]  Sun S S;McDonough W F,Chemical and isotopic systematics of oceanic basalts:implications for mantle composition and processes,Geological Society London Special Publications,1989.
[9]  Maniar P D;Piccoli P M Tectonic discrimination of granitoids [J] 1989 doi:10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2
[10]  Middlemost E A K Naming materials in the magma/igneous rock system [J] 1994 doi:10.1016/0012-8252(94)90029-9
[11]  Griffin W L;Pearson N J;Belousova E,The Hf isotope composition of cratonic mantle:LA-MC-ICPMS analysis of zircon megacrysts in kimberlites,Geochimica et Cosmochimica Acta,2000.
[12]  Soderlund U;Patchett P J;Vervoort J D,The 176Lu decay constant determined by Lu-Hf and U-Pb isotope systematics of Precambrian mafic intrusions,Earth and Planetary Science Letters,2004.
[13]  SlámaJ;Kosler J;Condon D J,Plesovice zircon-A new nat-ural reference material for U-Pb and Hf isotopic microanalysis,Chemical Geology,2008.
[14]  宋彪;乔秀夫.辽北辉绿岩墙(床)群及二道沟组玄武岩锆石年龄及其构造意义[J].地学前缘,2008(03)
[15]  Stacey J S;Kramers J D Approximation of terrestrial lead isotope evolution by a two stage model [J] 1975 doi:10.1016/0012-821X(75)90088-6
[16]  Hoskin P W O;Schaltegger U,The composition of zircon and igneous and metamorphic petrogenesis,Reviews of Mineralogy and Geochemistry,2003(1).
[17]  E.A. Belousova ;W.L. Griffin ;Suzanne Y. O\'Reilly,Igneous zircon: trace element composition as an indicator of source rock type,Contributions to Mineralogy and Petrology?,2002, 143(5).
[18]  简平;刘敦一;张旗.蛇绿岩及蛇绿岩中浅色岩的SHRIMPU-Pb测年[J].地学前缘,2003(04)
[19]  刘敦一;简平;张旗.内蒙古图林凯蛇绿岩中埃达克岩SHRIMP测年:早古生代洋壳消减的证据[J].地质学报,2003(03)
[20]  Compston W;Willians I S;Kirsdivink J L,Zircon U-Pb ages for the Early Cambrian time-scale,Journal of the Geological Society(London),1992.
[21]  Treuil M;Varet J,Criteres volcanologiques et geochimique de lagenese et de la differenciation des magmas basaltique:example de l\'Afar,Bulletin of Geological Society of France,1973(7).
[22]  王中刚;于学元;赵振华,稀土元素地球化学,北京:科学出版社,1989.
[23]  邱检生;胡建;MclnnesB I A.广东龙窝花岗闪长质岩体的年代学、地球化学及岩石成因[J].岩石学报,2004(06)
[24]  毛建仁;陶奎元;李寄?.闽西南晚中生代四方岩体同位素年代学、地球化学及其构造意义[J].岩石学报,2002(4)
[25]  周翔;余心起;王德恩.皖南东源含W、Mo花岗闪长斑岩及成矿年代学研究[J].现代地质,2011(2)
[26]  杨小男;徐兆文;张军.安徽狮子山矿田南洪钟岩体形成时代及成因机制研究[J].岩石学报,2007(06)
[27]  徐克勤;朱金初;刘昌实,华南花岗岩类的成因和物质来源,南京大学学报(地球科学),1989(03).
[28]  侯可军;李延河;邹天人.LA-MC-ICP-MS锆石Hf同位素的分析方法及地质应用[J].岩石学报,2007(10)
[29]  秦燕;王登红;吴礼彬.安徽东源钨矿含矿斑岩中的锆石SHRIMPU-Pb年龄及其地质意义[J].地质学报,2010(4)

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