Volume 41 Issue 7
Jul.  2016
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Article Navigation >  Earth Science  > 2016  >  41(7): 1156-1170
Cui Jiawei, Zheng Youye, Sun Xiang, Wu Song, Gao Shunbao, Tian Liming, Sun Junyi, Yang Chao, 2016. Origin of Granodiorite and Mafic Microgranular Enclave in Saizhisi, Qinghai Province: Zircon U-Pb Geochronological, Geochemical and Sr-Nd-Hf Isotopic Constraints. Earth Science, 41(7): 1156-1170. doi: 10.3799/dqkx.2016.515
Citation: Cui Jiawei, Zheng Youye, Sun Xiang, Wu Song, Gao Shunbao, Tian Liming, Sun Junyi, Yang Chao, 2016. Origin of Granodiorite and Mafic Microgranular Enclave in Saizhisi, Qinghai Province: Zircon U-Pb Geochronological, Geochemical and Sr-Nd-Hf Isotopic Constraints. Earth Science, 41(7): 1156-1170. doi: 10.3799/dqkx.2016.515
shu

Origin of Granodiorite and Mafic Microgranular Enclave in Saizhisi, Qinghai Province: Zircon U-Pb Geochronological, Geochemical and Sr-Nd-Hf Isotopic Constraints

doi: 10.3799/dqkx.2016.515
  • 1.

    School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China

  • 2.

    Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China

  • 3.

    Beijing Zhongkaihongde Technology Co., Ltd., Beijing 100083, China

  • Received Date: 2015-11-22
  • Publish Date: 2016-07-15
    Abstract
  • The Qilian orogenic belt is divided into the North, Central and South Qilian belts. The Saizhisi granodiorite is located between Central and South Qilian. In order to study the petrogensis and dynamic background of Saizhisi rocks, zircon U-Pb chronology, Hf isotope, whole rock geochemistry and Sr-Nd isotopes are reported for granodiorite and mafic microgranular enclaves (MMEs) in this area. The LA-ICP-MS analyses on zircons from both the Saizhisi granodiorite and MMEs yielded similar ages at 446.1±1.3 Ma and 446.0±1.0 Ma, respectively. The MMEs contain needle-like apatite, and they are characterized by lower SiO2 contents and higher Na2O/K2O ratios. Their REEs are similar to those of Saizhisi granodiorite and ∑REE are lower than those of the host granodiorite; The 86Sr/87Sr of MMEs=0.706 4-0.706 7, the εNd(t) of MMEs=-7.38 to -7.97. The elemental, U-Pb dating and Sr-Nd isotope suggest that they might have been formed by mixing of mafice and felsic member magmas. The Saizhisi granodiorite is metaluminous to weakly peraluminous with SiO2=66.45%-68.12%, Na2O/K2O=0.80-0.97, and A/CNK=0.91-1.03. The granodiorite is enriched in LILEs and depleted in HFSE, enriched in LREE contents and depleted in HREE contents with negative Euanomaly. The 86Sr/87Sr(0.709 3-0.709 5) and εNd(t) (-7.3794--7.9674) of Saizhisi granodiorite is similar to those of I-type granite of the Qilian Orogen belt. The εHf(t) of Saizhisi granodiorite=1.7-6.8, TDM2=995-1 750 Ma. It is concluded that the Saizhisi granodiorite might have been formed by mixing of mafice and felsic member magmas. Combined with the regional tectonic evolution, it is suggested that the Saizhisi granodiorite was formed in a subduction environment and mostly generated by the mantle which was formed by the lower crust intruded by the upwelling mantle.

     

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    • References(50)
  • Amelin, Y., Lee, D.C., Halliday, A.N., et al., 1999.Nature of the Earth's Crust from Hafnium Isotopes in Single Detrital Zircon.Nature, 399(6733):252-255.doi: 10.1038/20426
    Baxter, S., Feely, M., 2002.Magma Mixing and Mingling Textures in Granitoids:Examples from Galway Granite, Connemara, Ireland.Mineralogy and Petrology, 76(1-2):63-74.doi: 10.1007/s007100200032
    Belousova, E.A., Griffin, W.L., O'Reilly, S.Y., et al., 2002.Igneous Zircon:Trace Element Composition as an Indicator of Source Rock Type.Contribution to Mineralogy and Petrology, 143(5):602-622.doi: 10.1007/s00410-002-0364-7
    Chappell, B.W., White, A.J.R., Wyborn, D., 1987.The Importance of Residual Source Material (Restite) in Granite Petrogenesis.Journal of Petrology, 28(6):1111-1138.doi: 10.1093/petrology/28.6.1111
    Chen, J.L., Xu.X.Y., Zeng, Z.X., et al., 2008.Geochemical Characters and LA-ICPMS Zircon U-Pb Dating Constraints on the Petrogenesis and Tectonic Setting of the Shichuan Intrusion, East Segment of the Central Qilian, NW China.Acta Petrologica Sinica, 24(4):841-854(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-YSXB200804024.htm
    Chen, S., Niu, Y., Sun, W., et al., 2015.On the Origin of Mafic Magmatic Enclaves (MMEs) in Syn-Collisional Granitoids:Evidence from the Baojishan Pluton in the North Qilian Orogen, China.Mineralogy and Petrology, 109(5):577-596.doi: 10.1007/s00710-015-0383-5
    Defant, M.J., Drummond, M.S., 1990.Derivation of Some Modern Arc Magmas by Melting of Young Subducted Lithosphere.Nature, 347(6294):662-665.doi: 10.1038/347662a0
    Defant, M.J., Jackson, T.E., Drummond, M.S., et al., 1992.The Geochemistry of Young Volcanism throughout Western Panama and Southeastern Costa Rica:An Overview.Journal of the Geological Society, London, 149:569-579.doi:10.1144/ gsjgs.149.4.0569
    Hibbard, M.J., 1991.Textural Anatomy of Twelve Magma-Mixed Granitoid Systems:Enclaves and Granite Petrology.Elsevier, Amsterdam.
    Hu, Z.C., Liu, Y.S., Gao, S., et al., 2012.Improved In Situ Hf Isotope Ratio Analysis of Zircon Using Newly Designed X Skimmer Cone and Jet Sample Cone in Combination with the Addition of Nitrogen by Laser Ablation Multiple Collector ICP-MS.Journal of Analytical Atomic Spectrometry, 27(9):1391-1399.doi: 10.1039/C2JA30078H
    Liu, L., Qiu, J.S., Li, Z., et al., 2012.Petrogenesis of the Early Cretaceous Quartz Monzonite Pluton at Muchen in Longyou County, Zhejiang Province:Evidences from Elemental and Isotopic Geochemistry of Mafic Microgranular Enclaves and Their Host Rocks.Acta Petrogica Sinica, 28(12):3993-4006 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201212016.htm
    Pearce, J, A, ,Harris, N.B., Tindle, A.G., 1984.Trace Element Discrimination Diagrams for the Tectonic Interpretation of Granitic Rocks.Journal of Petrology, 25(4):956-983.doi:10.1007/ BF00384745
    Qin, H.P., Wu, C.L., Wang, C.S., et al., 2014.LA-ICP-MS Zircon U-Pb Dating and Geochemical Characteristics of High Sr/Y-Type Granite from Xigela, Eastern Qilian Area.Acta Petrologica Sinica, 30(12) :3759-3771 (in Chinese with English abstract). https://www.researchgate.net/publication/286308539_LA-ICP-MS_zircon_U-Pb_dating_and_geochemical_characteristics_of_high_SrY-type_granite_from_Xigela_eastern_Qilian_area
    Song, S.G., Zhang, L., Niu, Y., et al., 2007.Eclogite and Carpholite-Bearing Metasedimentary Rocks in the North Qilian Suture Zone, NW China:Implications for Early Paleozoic Cold Oceanic Subduction and Water Transport into Mantle.Journal of Metamorphic Geology, 25(5):547-563.doi: 10.1111/j.1525-1314.2007.00713.x
    Song, S.G., Zhang, L.F., Song, B., et al., 2004.North Qilian Mountains Eclogite Zircon SHRIMP Dating and Tectonic Significance.Chinese Science Bulletin, 49(6):592-595(in Chinese).
    Song, S.G., Zhang, L.F., Niu, Y.L., et al., 2006.Evolution from Oceanic Subduction to Continental Collision:A Case Study from the Northern Tibetan Plateau Based on Geochemical and Geochronological Data.Journal of Petrology, 47(3):435-455.doi:10.1093/ petrology/ egi080
    Sun, S.S., McDonough, W.F., 1989.Chemical and Isotopic Systematics of Oceanic Basalts:Implications for Mantle Composition and Processes.In:Saunders, A.D., Norry, M.J., eds., Magmatism in the Ocean Basins.Geological Society, London, Special Publication, 42(1):313-345.doi:10.1144/GSL.SP.1989.042.01.19
    Vervoort, J, D., Pachelt, P.J., Gehrels, G.E., et al., 1996.Constraints on Early Earth Differentiation from Hafnium and Neodymium Isotopes.Nature, 379(6566):624-627.doi: 10.1038/379624a0
    Whalen, J.B., Currie, K.L., Chappell, B.W., 1987.A-Type Granites:Geochemical Characteristics, Discrimination and Petrogenesis.Contributions to Mineralogy and Petrology, 95(4):407-419. doi: 10.1007/BF00402202
    Wu, C.L., Xu, X.Y., Gao, Q.M., et al., 2010.North Qilian Zoulang Nanshan Caledonian Subduction Complex Accretionary Terrane and Its Dynamics.Acta Petrologica Sinica, 26(4):1027-1044 (in Chinese with English abstract).
    Wu, C.L., Yao, S.Z., Yang, J.S., et al., 2006.Double Subduction of the Early Paleozoic North Qilian Oceanic Plate:Evidence from Granites in the Central Segment of North Qilian, NW China.Geology in China, 33(6):1197-1208 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DIZI200606003.htm
    Wu, C.L., Gao.Y, Frost, B.R., et al., 2011.An Early Palaeozoic Double-Subduction Model for the North Qilian Oceanic Plate:Evidence from Zircon SHRIMP Dating of Granites.International Geology Review, 53(2):157-181. doi: 10.1080/00206810902965346
    Wu, F.Y., Li, X.H., Zheng, Y.F., et al., 2007.Lu-Hf Isotopic Systematics and Their Applications in Petrology.Acta Petrologica Sinica, 23(2):185-220 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB200702002.htm
    Xia, L.Q., Xia, Z.C., Xu, X.Y., 1998.The Volcanic Action of the Early Paleozoic Oceanic Ridges, Oceanic Islands and the back Arc Basin in the North Qilian Mountains.Acta Gologica Sinica, 72(4):301-312(in Chinese with English abstract).
    Xiao, W., Windley, B.F., Yong, Y., et al., 2009.Early Paleozoic to Devonian Multiple-Accretionary Model for the Qilian Shan, NW China.Journal of Asian Earth Sciences, 35(3):323-333.doi: 10.1016/j.jseaes.2008.10.001
    Xiong, Z.L., Zhang, H.F., Zhang, J., 2012.Petrogenesis and Tectonic Implications of the Maozangsi and Huangyanghe Granitic Intrusions in Lenglongling Area, the Eastern Part of North Qilian Mountains, NW China.Earth Science Frontiers, 19(3):214-227(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DXQY201203023.htm
    Yan, Z., Aitchison, J., Fu, C., et al., 2015.Hualong Complex, South Qilian Terrane:U-Pb and Lu-Hf Constraints on Neoproterozoic Microcontinental Fragments Accreted to the Northern Proto-Tethyan Margin.Precambrian Research, 266:65-85.doi: 10.1016/j.precamres.2015.05.001
    Yang, G.X., Li, Y.J., Si, G.H., et al., 2010.LA-ICP-MS Zircon U-Pb Dating of Kubusunan Granodiorite and the Enclaves from Kalamaili Area in Eastern Junggar, Xinjiang, and Its Geological Implications.Earth Science, 35(4):597-610 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQKX201004013.htm
    Yang, T.L., Jiang, S.Y., 2015.Petrogenesis of Intermediate-Felsic Intrusive Rocks and Mafic Microgranular Enclaves (MMEs)from Dongleiwan Deposit in Jiurui Ore District, Jiangxi Province:Evidence from Zircon U-Pb Geochronology, Geochemistry and Sr-Nd-Pb-Hf Isotopes.Earth Science, 40(12):2002-2020(in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTotal-DQKX201512006.htm
    Yong, Y., Xiao, W.J., Yuan, C., et al., 2008.Geochronology and Geochemistry of Paleozoic Granitic Plutons from the Eastern Central Qilian and Their Tectonic Implications.Acta Petrologica Sinica, 24(4):855-866(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB200804025.htm
    Zhang, Q., Zhou, G.Q., Wang, Y., 2003.The Distribution of Time and Space of Chinese Ophiolites and Their Tectonic Settings.Acta Petrologica Sinica, 19(1):1-8(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB200301000.htm
    Zhao, X.M., Zhang, Z.H., Liu, M., et al., 2014.Zircon U-Pb Geochronology, Geochemistry and Petrogenesis of the Granites from the Xiaoliugou Deposit in the Western of the North Qilian.Acta Petrologica Sinica, 30(1):16-34 (in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201401002.htm
    Zheng, Y.F., Wu, Y.B., Chen, F.K., et al., 2004.Zircon U-Pb and Oxygen Isotope Evidence for a Large-Scale 180 Depletion Event in Igneous Rocks during the Neoproterozoic.Geochimica et Cosmochimica Acta, 68(20):4145-4165.doi: 10.1016/j.gca.2004.01.007
    Zhu, D.C., Zhao, Z.D., Pan, G.T., et al., 2009.Early Cretaceous Subduction Related Adakite Like Rocks of the Gangdese Belt, Southern Tibet:Products of Slab Melting and Subsequent Melt-Peridotite Interaction? Journal of Asian Earth Sciences, 34(3):298-309.doi: 10.1016/j.jseaes.2008.05.003
    Zuo, G.C., Wu, H.Q., 1997.Subductionon Collision Orogenic Model of Early-Paleozoic in the Middle Part of North Qilian Area.Advance in Earth Sciences, 12(4):315-323 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DXJZ704.003.htm
    陈隽璐, 徐学义, 曾佐勋, 等, 2008.中祁连东段什川杂岩基的岩石化学特征及年代学研究.岩石学报, 24(4):841-854. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200804024.htm
    刘亮, 邱检生, 李真, 等, 2012.浙江龙游沐尘早白垩世石英二长岩体的成因:镁铁质包体及寄主岩的元素与Sr-Nd同位素地球化学证据.岩石学报, 28(12):3993-4006. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201212016.htm
    秦海鹏, 吴才来, 王次松, 等, 2014.祁连东部西格拉高Sr/Y型花岗岩LA-ICP-MS锆石U-Pb定年及其地球化学特征.岩石学报, 30(12):3759-3771. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201412024.htm
    宋述光, 张立飞, 宋彪, 等, 2004.北祁连山榴辉岩锆石SHRIMP定年及其构造意义.科学通报, 49(6):592-595. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200406017.htm
    吴才来, 徐学义, 高前明, 等, 2010.北祁连早古生代花岗质岩浆作用及构造演化.岩石学报, 26(4):1024-1044. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201004004.htm
    吴才来, 姚尚志, 杨经绥, 等, 2006.北祁连洋早古生代双向俯冲的花岗岩证据.中国地质, 33(6):1197-1208. http://www.cnki.com.cn/Article/CJFDTOTAL-DIZI200606003.htm
    吴福元, 李献华, 郑永飞, 等, 2007.Lu-Hf同位素体系及其岩石学应用.岩石学报, 23(2):185-220. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200702002.htm
    夏林圻, 夏祖春, 徐学义, 1998.北祁连山早古生代洋脊-洋岛和弧后盆地火山作用.地质学报, 72(4):301-312. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE199804001.htm
    熊子良, 张宏飞, 张杰.2012.北祁连东段冷龙岭地区毛藏寺岩体和黄羊河岩体的岩石成因及其构造意义.地学前缘, 19(3):214-227. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201203023.htm
    杨高学, 李永军, 司国辉, 等, 2010.东准库布苏南岩体和包体的LA-ICP-MS锆石U-Pb测年及地质意义.地球科学, 35(4):597-610. http://earth-science.net/WebPage/Article.aspx?id=2003
    杨堂礼, 蒋少涌, 2015.江西九瑞矿集区东雷湾矿区中酸性侵入岩及其铁镁质包体的成因:锆石U-Pb年代学、地球化学与Sr-Nd-Pb-Hf同位素制约.地球科学, 40(12):2002-2020. http://earth-science.net/WebPage/Article.aspx?id=3205
    雍拥, 肖文交, 袁超, 等, 2008.中祁连东段古生代花岗岩的年代学、地球化学特征及其大地构造意义.岩石学报, 24(4):855-866. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200804025.htm
    张旗, 周国庆, 王焰, 2003.中国蛇绿岩的分布、时代及其形成环境.岩石学报, 19(1):1-8. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200301000.htm
    赵辛敏, 张作衡, 刘敏, 等, 2014.北祁连西段小柳沟矿区花岗质岩石锆石U-Pb年代学、地球化学及成因研究.岩石学报, 30(1):16-34. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201401002.htm
    左国朝, 吴汉泉, 1997.北祁连中段早古生代双向俯冲-碰撞造山模式剖析.地球科学进展, 12(4):315-323. http://www.cnki.com.cn/Article/CJFDTOTAL-DXJZ704.003.htm
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