湘南道县辉长岩包体的锆石LA-ICP-MS定年、Hf同位组成及其地质意义

doi:10.13278/j.cnki.jjuese.201603101

吉林大学学报(地球科学版) ›› 2016, Vol. 46 ›› Issue (3): 627-638.doi: 10.13278/j.cnki.jjuese.201603101

• 地质与资源 • 下一篇

湘南道县辉长岩包体的锆石LA-ICP-MS定年、Hf同位组成及其地质意义

孔华^1,2, 许明珠^1,2, 张强^1,2, 唐宇蔷^1,2, 赵佳进^1,2

1. 中南大学有色金属成矿预测与地质环境监测教育部重点实验室, 长沙 410083;
2. 中南大学地球科学与信息物理学院, 长沙 410083

收稿日期:2015-10-12 出版日期:2016-05-26 发布日期:2016-05-26
通讯作者: 许明珠(1992),女,研究生,主要从事岩石地球化学研究,Tel:0731-88830616,E-mail:867269641@qq.com E-mail:867269641@qq.com
作者简介:孔华(1968),男,教授,主要从事构造地质和矿产地质研究,E-mail:konghua2006@126.com
基金资助:
中国地质调查局地质矿产调查评价专项（1212011121116，1212011085372）

LA-ICP-MS Zircon U-Pb Dating and Hf Isotope Feature of Gabbro Xenolith and Its Geological Significance in Huziyan Basalt of Daoxian County, Southern Hunan Province

Kong Hua^1,2, Xu Mingzhu^1,2, Zhang Qiang^1,2, Tang Yuqiang^1,2, Zhao Jiajin^1,2

1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Central South University, Changsha 410083, China;
2. School of Geosciences and Info-Physics, Central South University, Changsha 410083, China

Received:2015-10-12 Online:2016-05-26 Published:2016-05-26
Supported by:
Supported by Special Survey for Mineral Resources Evaluation from China Geological Survey(1212011121116, 1212011085372)

摘要/Abstract

摘要：

道县虎子岩碱性玄武岩筒产出较多的辉长岩包体。用于锆石定年的辉长岩样品的岩石化学特征显示：其K₂O、Fe₂O₃、TiO₂高于其他同类样品，稀土元素、微量元素总量也相对较高，样品的K^*值（2K_N/（Ta_N+La_N））为7.60>1，显示岩浆具有亲岛弧性质，反映源区地幔受到较强的交代作用；Nb^*值（2 Nb_N/（K_N+La_N））为0.11<1，反映基性岩浆侵入时受到了地壳混染；辉长岩中的锆石具有清晰的韵律环带，Th/U值=0.91~4.35，具有岩浆锆石的特征；锆石²⁰⁶Pb/²³⁸U加权平均年龄为（201.50±0.53）Ma，代表了辉长岩的结晶年龄；ε_Hf（t）值为-0.88~4.45，投点落入球粒陨石附近，暗示强烈的壳幔交换作用；Hf模式年龄平均为751 Ma，反映早期地壳对岩石源区的贡献。Hf同位素组成特征反映辉长质岩浆是在印支晚期局部拉张背景下，岩石圈上地幔上隆减压熔融的产物。

关键词: 辉长岩包体, 锆石U-Pb定年, Hf同位素示踪, 道县

Abstract:

There are many gabbro xenoliths in Huziyan alkali basalt pipe in Daoxian County. The geochemical analysis of one gabbro dating sample show that it has high content of K₂O, Fe₂O₃ and TiO₂, compared with other gabbro samples, which suggests that the gabbro xenolith is product of crystallization differentiation of late-stage magma. The K^* value (2K_N/(Ta_N+La_N)) is 7.60 (>1), displaying the magma source experienced metasomatism. The Nb^* value(2 Nb_N/(K_N +La_N)) is 0.11(<1), implying crust contamination during basic magma intrusion. Zircon grains are chosen from gabbro xenolith for LA-ICP-Ms U-Pb dating and Hf isotope analysis. Zircon grains in the gabbro have clear crystallization zoning, the ratio of Th/U is 0.91~4.35, these features imply that these zircon grains have magmatic origin. The average age of ²⁰⁶Pb/²³⁸U is (201.50±0.53) Ma(1σ, MSWD=4.6), which represents the emplacement age of the gabbro xenolith. According to Hf isotope compositions, the calculated model age is 751 Ma, indicating the earlier crustal material gave contributions to source area, the values of ε_Hf(t) are -0.88~4.45, in the figure of ε_Hf(t)-t, the points of zircon grains lie in the area neighbored to evolution curve of chondrite mantle, which are different apparently from their Nd isotope geochemistry. Geochemical characteristics show that the deeply strong material exchange progress between deep crust and mantle in southern Hunan area. In Late Indosinian epoch, there occurred mantle uplift induced by partial extensions, which resulted in progressively the mantle melting to from gabbro magma. The gabbro magma underplated at the bottom of lithosphere and became one part of its consistent.

Key words: gabbro xenoliths, zircon U-Pb dating, Hf isotope tracing, Daoxian County

中图分类号:

P588.124

孔华, 许明珠, 张强, 唐宇蔷, 赵佳进. 湘南道县辉长岩包体的锆石LA-ICP-MS定年、Hf同位组成及其地质意义[J]. 吉林大学学报(地球科学版), 2016, 46(3): 627-638.

Kong Hua, Xu Mingzhu, Zhang Qiang, Tang Yuqiang, Zhao Jiajin. LA-ICP-MS Zircon U-Pb Dating and Hf Isotope Feature of Gabbro Xenolith and Its Geological Significance in Huziyan Basalt of Daoxian County, Southern Hunan Province[J]. Journal of Jilin University(Earth Science Edition), 2016, 46(3): 627-638.

参考文献

[1] 陈必河. 宁远保安地区基性-超基性火山岩基本特征[J].湖南地质, 1994, 13(4):193-198. Chen Bihe. Main Features of Basic-Ultrabasic Volcanic Rocks of Baoan,Ningyuan County[J].Hunan Geology,1994, 13(4):193-198.

[2] 赵振华,包志伟,张伯友. 湘南中生代玄武岩类地球化学特征[J]. 中国科学:D辑, 1998, 28(增刊2):7-14. Zhao Zhenhua,Bao Zhiwei,Zhang Boyou. Mesozoic Basalt Geochemical Characteristics[J]. Science in China:Series D,1998, 28(Sup.2):7-14.

[3] 刘勇,李廷栋,肖庆辉,等. 湘南宁远地区碱性玄武岩形成时代的新证据:锆石LA-ICP-MS U-Pb定年[J]. 地质通报,2010, 29(6):833-841. Liu Yong,Li Tongdong, Xiao Qinghui,et al. New Chronology of the Ningyuan Alkali Basalt in Southern Hunan,China:Evidence from LA-ICP-MS Zircon U-Pb Dating[J].Geological Bulletin of China,2010,29(6):833-841.

[4] 黄国祥. 新田宁远道县一带玄武质火山岩的地球化学研究[J]. 湖南地质,1989, 8(3):33-38,53. Huang Guoxiang.A Geochaemical Study of Basaltic Volcanic Rocks in the Zone from Xintian Ningyuan to Daoxian[J]. Hunan Geology,1989, 8(3):33-38,53.

[5] 王京彬. 道县虎子岩岩体及其包体的地球化学特征和构造意义[J]. 湖南地质, 1991, 10(1):52-58. Wang Jingbin.Geochemical Feature and Structural Implication of Huziyan Basalt Rock Mass and Its Xenolith in Dao County[J]. Hunan Geology,1991, 10(1):52-58.

[6] 郭锋,范蔚茗,林舸,等. 湖南省道县虎子岩片麻岩包体的岩石学特征和年代学研究[J]. 长春地质学院学报, 1997, 27(1):26-31. Guo Feng,Fan Weiming,Lin Ge, et al. Petrological Characteristics and Dating on Gneiss Xenoliths in Huziyan,Daoxian Region,Hunan Province[J]. Jourrnal of Changchun University of Earth Sciences, 1997, 27(1):26-31.

[7] 孔华,马芳,黄德志. 湘南地区深部岩石剖面的建立:来自深源岩石包体的证据[J]. 桂林工学院学报, 2001, 21(3):195-200. Kong Hua,Ma Fang,Huang Dezhi. The Deep Lithological Section in Southern Hunan Province:Evidence from Some Xenoliths in Alkaline Basalt[J].Journal of Guilin Institute of Technology, 2001, 21(3):195-200.

[8] 孔华,金振民,奚小双. 湖南道县辉长岩包体的锆石U-Pb法定年及其地质意义[J]. 矿物学报, 2002, 22(4):350-352. Kong Hua,Jin Zhenmin,Xi Xiaoshuang.Single Grain Zircon U-Pb Dating of Gabbro Xenolith from Daoxian Alkaline Basalt,Hunan Province[J]. Acta Mineralogica Sinica, 2002, 22(4):350-352.

[9] 孔华,金振民,林源贤. 道县玄武岩中麻粒岩包体的岩石学及年代学[J]. 长春科技大学学报, 2000, 30(2):115-119. Kong Hua,Jin Zhenmin,Lin Yuanxian.Petrology and Chronology of Granulite Xenolith in Daoxian County,Hunan Provice[J].Journal of Changchun University of Science and Technology, 2000, 30(2):115-119.

[10] 郭锋,范蔚茗,林舸,等. 湘南道县辉长岩包体的年代学研究及成因探讨[J]. 科学通报, 1997, 42(15):1661-1664. Guo Feng,Fan Weiming,Lin Ge, et al. Geochronology and Causes of Gabbro Xenoliths in Daoxian County, Hunan Provice[J].Chinese Science Bulletin, 1997, 42(15):1661-1664.

[11] 吴有林,林舸. 宁远-道县地区玄武岩地球化学特征及其构造意义[J]. 大地构造与成矿学, 1996, 20(3):262-266. Wu Youlin,Lin Ge.Geochemistry and Structural Significance of Basalts from Ningyuan to Daoxian County[J]. Geotectonica et Metallogenia,1996, 20(3):262-266.

[12] 钟玉芳,马昌前,佘振兵. 锆石地球化学特征及地质应用研究综述[J]. 地质科技情报, 2006, 25(1):27-34,40. Zhong Yufang,Ma Changqian,Yu Zhenbing.Geochemical Characteristics of Zircon and Its Applications in Geosciences[J]. Geological Science and Technology Information, 2006, 25(1):27-34,40.

[13] 谢桂青,胡瑞忠,蒋国豪,等.锆石的成因和U-Pb同位素定年的某些进展[J]. 地质地球化学, 2002, 29(4):64-70. Xie Guiqing,Hu Ruizhong,Jiang Guohao,et al.Evaluation of the Genesis of Zircons and U-Pb Isotopic Dating[J]. Geology Geochemistry, 2002, 29(4):64-70.

[14] 刘耀荣. 新田-宁远段深大断裂探讨[J]. 湖南地质, 1994, 13(2):65-68. Liu Yaorong. On the Xngtian-Ningyuan Deep Fault[J]. Hunan Geology, 1994, 13(2):65-68.

[15] 郭锋,吴有林,范蔚茗, 等.湖南省宁远-道县中生代玄武岩中辉长岩包体的岩石学初步研究[J]. 大地构造与成矿学, 1996, 20(1):38-45. Guo Feng,Wu Youlin,Fan Weiming,et al.A Petrological Study on the Gabbro Xenoliths from Ningyuan to Daoxian County,Hunan Province[J].Geotectonica et Metallogenis, 1996, 20(1):38-45.

[16] 宋彪,张玉海,万渝生,等.锆石SHRIMP样品靶制作、年龄测定及有关现象讨论[J]. 地质论评, 2002, 48(增刊1):26-30. Song Biao,Zhang Yuhai,Wan Yusheng,et al.Mout Making and Procedure of the SHRIMP Dating[J].Geological Review, 2002, 48(Sup.1):26-30.

[17] Andersen T. Correction of Common Lead in U-Pb Analyses That Do Not Report ²⁰⁴Pb[J]. Chemical Geology, 2002, 192(1/2):59-79.

[18] 杨进辉,吴福元,柳小明,等. 北京密云环斑花岗岩锆石U-Pb年龄和Hf同位素及其地质意义[J]. 岩石学报, 2005, 21(6):1633-1644. Yang Jinhui,Wu Fuyuan,Liu Xiaoming,et al.Zireon U-Pb Ages and Hf Isotopes and Their Geological Significance of the Miyun Rapakivi Granites from Beijng,China[J].Acta Petrologica Sinica, 2005, 21(6):1633-1644.

[19] Yuan H,Gao S,Liu X, et al. Accurate U-Pb Age and Trace Element Determinations of Zircon by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry[J]. Geostandards and Geoanalytical Research, 2004, 28(3):353-370.

[20] Liu Y,Gao S,Hu Z, et al. Continental and Oceanic Crust Recycling-Induced Melt-Peridotite Interactions in the Trans-North China Orogen:U-Pb Dating, Hf Isotopes and Trace Elements in Zircons from Mantle Xenoliths[J]. Journal of Petrology, 2010, 51(1/2):537-571.

[21] Ludwig K R. User's Manual for Isoplot 3.0:A Geo-chronological Toolkit for Microsoft Excel Berkeley Geochronology Center[J]. Special Publication, 2003, 4:1-71.

[22] Yuan H L,Gao S,Dai M N, et al. Simultaneous Deter-minations of U-Pb Age, Hf Isotopes and Trace Element Compositions of Zircon by Excimer Laser-Ablation Quadrupole and Multiple-Collector I CPMS-MS[J]. Chemical Geology, 2008, 247(1/2):100-118.

[23] Middlemost E A K. Naming Materials in the Magma/Igneous Rock System[J]. Earth-Science Reviews, 1994, 37(3/4):215-224.

[24] Middlemost E A K. Magmas and Magmatic Rocks:An Introduction to Igneous Petrology[M]. London:Longman, 1985:1-266.

[25] Peccerillo A,Taylor S R. Geochemistry of Eocene Calc-Alkaline Volcanic Rocks from the Kastamonu Area, Northern Turkey[J]. Contributions to Mineralogy and Petrology, 1976, 58(1):63-81.

[26] Boynton W V. Geochemistry of the Rare Earth Elements:Meteorite Studies[C]//Henderson P. Rare Earth Element Geochemistry. Amsterdam:Elsevier, 1984:63-114.

[27] McDonough W F,Sun S S. The Composition of the Earth[J]. Chemical Geology, 1995, 120:223-253.

[28] 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. Lu Yuanfa. Geokit:A Geochemical Toolkit for Microsoft Excel[J]. Geochemica, 2004, 33(5):459-464.

[29] 郭峰,范蔚茗. 宁远-道县辉长岩包体的地球化学特征[J]. 湖南地质, 1996, 15(2):68-70. Guo Feng,Fan Weiming.Geochemistry of Gabbo Inclusioin Ningyuan-Daoxian Counties[J].Hunan Geology, 1996, 15(2):68-70.

[30] Vervoort J D,Patchett P J. Behaviour of Hafnium and Neodymium Isotopes in the Crust:Constraints from Precambrian Crustally Derived Granites[J].Geochimica et Cosmochimica Acta,1996,60(19):3717-3733.

[31] 郭锋,范蔚茗,林舸. 湘南中生代玄武岩浆成因与岩石圈-软流圈相互作用[J]. 矿物岩石地球化学通报, 1998, 17(1):3-6. Guo Feng,Fan Weiming,Lin Ge. Petrogenesis of Mesozoic Basaltic Magmas and Lithosphere-Asthenosphere Interaction in South Hunan Province,China[J].Bulletin of Mineralogy,Petrology and Geochemistry, 1998, 17(1):3-6.

[32] 张菲菲,王岳军,范蔚茗, 等.江南隆起带中段新元古代花岗岩锆石U-Pb年代学和Hf同位素组成研究[J]. 大地构造与成矿学, 2011, 35(1):73-84. Zhang Feifei,Wang Yuejun,Fan Weiming, et al.Zircon U-Pb Geochronology and Hf Isotopes of the Neopro-terozoic Granites in the Central of Jiangnan Uplift[J].Geotectonica et Metallogenia, 2011, 35(1):73-84.

[33] Amelin Y,Lee D C,Halliday A N. Early-Middle Archaean Crustal Evolution Deduced from Lu-Hf and U-Pb Isotopic Studies of Single Zircon Grains[J]. Geochimica et Cosmochimica Acta, 2000, 64(24):4205-4225.

[34] Blichert-Toft J,Albarède F. The Lu-Hf Isotope Geoche-mistry of Chondrites and the Evolution of the Mantle-Crust System[J]. Earth and Planetary Science Letters, 1997, 148(1/2):243-258.

[35] Vervoort J D,Patchett P J,Gehrels G E, et al. Cons-traints on Early Earth Differentiation from Hafnium and Neodymium Isotopes[J]. Nature, 1996, 379(6566):624-627.

[36] Bennett V C,Nutman A P,McCulloch M T. Nd Isotopic Evidence for Transient, Highly Depleted Mantle Reservoirs in the Early History of the Earth[J]. Earth and Planetary Science Letters, 1993, 119(3):299-317.

[37] 王岳军,范蔚茗,梁新权, 等.湖南印支期花岗岩SHRIMP锆石U-Pb年龄及其成因启示[J]. 科学通报, 2005, 50(12):1259-1266. Wang Yuejun, Fan Weiming,Liang Xinquan, et al. SHRIMP Zircon U-Pb Geochronology of Indosinia Granites in Hunan Province and Its Petrogenetic Implications[J].Chinese Science Bulletin,2005,50(13):1259-1266.

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湘南道县辉长岩包体的锆石LA-ICP-MS定年、Hf同位组成及其地质意义

LA-ICP-MS Zircon U-Pb Dating and Hf Isotope Feature of Gabbro Xenolith and Its Geological Significance in Huziyan Basalt of Daoxian County, Southern Hunan Province

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[15]	楚亚婷，刘显凡，赵甫峰，卢秋霞，李春辉，肖继雄,吴冉，宋祥峰，蔡永文，蔡飞跃. 滇西马厂箐钼铜金矿床中赋矿斑状花岗岩定年及其地质意义[J]. 吉林大学学报(地球科学版), 2013, 43(5): 1377-1392.