2017 Vol. 44, No. 5
Article Contents

CHEN Peijia, DAI Chaocheng, HUANG Cheng, WANG Xinliang. 2017. Geochemical characteristics and zircon U-Pb age of the Paleoproterozic S-type granite in Wulashan region and its geological significance[J]. Geology in China, 44(5): 959-973. doi: 10.12029/gc20170509
Citation: CHEN Peijia, DAI Chaocheng, HUANG Cheng, WANG Xinliang. 2017. Geochemical characteristics and zircon U-Pb age of the Paleoproterozic S-type granite in Wulashan region and its geological significance[J]. Geology in China, 44(5): 959-973. doi: 10.12029/gc20170509

Geochemical characteristics and zircon U-Pb age of the Paleoproterozic S-type granite in Wulashan region and its geological significance

    Fund Project: Supported by East China University of Technology Postgraduate Innovation Fund (No.YC2017-S277), National Youth Science Foundation Project (No.41402085) and the Ministry of Land and Resources, Geological and Mineral Survey Project for Southern Section of Da Hinggan Mountains Metallogenic Belt (No.1212011120718)
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  • Author Bio: CHEN Peijia, male, born in 1993, master candidate, engages in the study of petrology; E-mail:a5733327@live.com
  • Corresponding author: DAI Chaocheng, male, born in 1980, lecturer, doctor, engages in the study of stratigraphy; E-mail:daichaocheng@qq.com 
  • Wulashan area, located in the north part of the North China craton, has well-developed Paleoproterozoic granites, with the Nuoeryin S-type granites as the typical one. The investigation of Nuoeryin granites shows that the granites have high SiO2 (w(SiO2)=70.03%~75.43%), high Al2O3 (w(Al2O3)=13.04%~14.87%), and high K2O values (w(K2O)=5.36%~6.58%), low Mg# (< 10) and high A/CNK values, indicating that they belong to peraluminous S-type granites. They are enriched in LREE with significant differentiation between LREE and HREE (LaN/YbN=22.3-300.5), and REE patterns of the samples are of right-oblique type, with strong negative Eu anomalies(δEu=0.16-0.55). The primitive mantle-normalized trace element diagrams show enrichment of K, Rb, Th, Pb and depletion of Sr, Ba, Nb, Ta, P, Ti. The Nuoeryin granites have similar geochemical characteristics to the Paleoproterozic knondalites in Wulashan area and, and the reason is probably that Nuoeryin granites were generated by the knondalites anatexis while the Yinshan blocks and Ordos blocks experienced collision in Paleoproterzoic. The LA-ICP-MS zircon U-Pb ages of Nuoeryin granites are 1891±14 Ma and 1863±17 Ma, which represent the crystallization age of the Nuoeryin S-type granites, and the age is also contemporaneous with magmatic-metamorphic events in Khondalite belt.

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  • Alther R, Holl A Hegner E, Langer C and Kreuzer H.High-potassium, calc-alkaline Ⅰ-type plutonism in the European Variscides:Northern Vosges (France) and northern Schwarzwald (Germany)[J].Lithos, 2000, 50:51-73 doi: 10.1016/S0024-4937(99)00052-3

    CrossRef Google Scholar

    Bai Daoyuan, Chen Bihe, Zhongxiang, Jia Peng-yuan, Xiong Xiong.2014.Zircon SHRIMP U-Pb age, geochemistry and tectonic setting of Indosinian Wutuan pluton in southwestern Hunan Province[J].Geology in China, 41(6):2002-2018(in Chinese with English abstract).

    Google Scholar

    Barbarin B.1999.A review of the relationships between granitoid types, their origins and their geodynamic environments[J].Lithos, 46(3), 605-626. doi: 10.1016/S0024-4937(98)00085-1

    CrossRef Google Scholar

    Bi Mingli, Lu Laijun, Zhao Qingying, Liu Zhenghong.2008.Geochemical characteristics and protoliths of the marble rock group of the khondalite series in the Daqing Mountains, Inner Mongolia[J].Geology in China, 35(4):639-647(in Chinese with English abstract).

    Google Scholar

    Cai Jia, Liu Pinghua, Liu Fulai, Liu Jianhui, Wang Fang and Shi Jianrong.2013.Genetic mineralogy and metamorphic evolution of Al-rich gneisses in the Shiguai area, Daqingshan-Wulashan metamorphic complex belt[J].Acta Petrologica Sinica, 29(2):437-461(in Chinese with English abstract).

    Google Scholar

    Chen Xiaoming, Wang Rucheng, Liu Changshi, Hu Huan, Zhang Wenlan, Gao Jianfeng.2002.Isotopic dating and genesis for Fogang biotite granites of Conghua area, Guangdong Province[J].Geological Journal of China Universities, 8(3):293-307(in Chinese with English abstract).

    Google Scholar

    Condie KC, Boryta MD, Liu Jinzhong, Qian Xianglin.1992.The origin of khondalites:Geochemical evidence from the Archean to Early Proterozoic granulite belt in the North China craton[J].Precamb Research, 59(3/4):207-223.

    Google Scholar

    Deng Jinfu, Luo Zhaohua, Su Shangguo, Mo Xuanxue, Yu Bingsong, Lai Xingzuo, Chen Hongwei.2004.Petrogenesis, tectonic setting and mineralization[M].Beijing:Geological Publishing House, 33-49(in Chinese).

    Google Scholar

    Dong Chunyan, Liu Dunyi, Wan Yusheng, Xu Zhongyuan, Wang Wei, Xie Hangqiang.2009.Hf isotope composition and REE pattern of zircons from Early Precambrian metamorphic rocks in the Daqing Mountains, Inner Mongolia[J].Geological Review, 55(4):509-518(in Chinese with English abstract).

    Google Scholar

    Dong Chunyan.Wan Yusheng.Simon A Wilde.Xu Zhongyuan.Ma Mingzhu.Xie Hangqiang.Liu Dunyi.2014.Earliest Paleoproterozoic supracrustal rocks in the North China Craton recognized from the Daqingshan area of the Khondalite Belt:Constraints on craton evolution[J].Gondwana Research.25(4):1535-1553 doi: 10.1016/j.gr.2013.05.021

    CrossRef Google Scholar

    Douce A E P, BEARD J S.1996.Effects of P, f(O2) and Mg/Fe ratio on dehydration melting of model metagreywackes[J].Journal of Petrology, 37(5):999-1024. doi: 10.1093/petrology/37.5.999

    CrossRef Google Scholar

    Green Th.1976.Experimental generation of cordierite-orgarnetbearing granitic liquids from a pelitic composition[J].Geology, 4(2):85-88. doi: 10.1130/0091-7613(1976)4<85:EGOCGG>2.0.CO;2

    CrossRef Google Scholar

    Li Jianghai, Qian Xiangling, Liu Shuwen.1999.Geochemical characteristics of khondalite series in the middle of North China craton and its significance of continental craton[J].Science in China (Series D), .29(3):193-203(in Chinese).

    Google Scholar

    Li Sanzhong, Li Xiyao, Dai Liming, Li Xing, Zhang Zhen, Zhao Shujuan, Guo lingli, Zhao Guochun, Zhang Guowei.2015.Precambrian geodynamics (Ⅵ):Formation of North China Craton[J].Earth Science Frontiers.22(6):077-096(in Chinese with English abstract)

    Google Scholar

    Liu Jianhui, Liu Fulai, Ding Zhengjiang, Chen Junqiang, Liu Pinghua, Shi Jianrong, Cai Jia and Wang Fang.2013.Zircon U-Pb chronology, geochemistry and their petrogenesis of Early Paleoproterozoic granitoid gneisses in Ulashan area, North China Craton[J].Acta Petrologica Sinica, 29(2):485-500(in Chinese with English abstract)

    Google Scholar

    Liu Jinke, Zhang Daohan, Wei Junhao, Fu Lebing, Tan Jun, Wang Dazhao, Shi Haipeng, Wang Yilong.2016.Zircon U-Pb age and geochemical characteristics of the Paleoproterozoic S-type granite in the northern part of Helanshan and its geological significance[J].Journal of Central South University (Science and Technology), 47(1):187-197(in Chinese with English abstract)

    Google Scholar

    Liu Shoujie, Li Jianghai.Review of ultrahigh-temperature (UHT) metamorphism study:a case from North China Craton[J].Earth Science Frontiers, 2007, 14(3):131-137(in Chinese with English abstract).

    Google Scholar

    Liu Taotao, Dai Chaocheng, Wang Xinliang.2016.Geochemical characteristics and protolith formation of Al-rich gneisses in Wulashan Area, Central Inner Mongolia[J].Science Technology and Engineering, 16(30):17-27(in Chinese with English abstract).

    Google Scholar

    Liu Xishan, Jin Wei, Li Shuxun.1992.Low-pressure metamorphism of granulite facies in an early proterozoic orogenic event in central Inner Mongolia[J].Acta Geologica Sinica, 66(3):244-256(in Chinese with English abstract).

    Google Scholar

    Liu Yongsheng, Gao Shan, Hu Zhaochu, Gao Changgui, Zong Keqing and Wang Dongbing.2010.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, 51(1&2):537-571.

    Google Scholar

    Liu Yongsheng, Hu Zhaochu., Zong Keqing, Gao Changgui, Gao Shan, Xu Juan and Chen Haihong, 2010b.Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS[J].Chinese Science Bulletin, 55(15):1535-1546.

    Google Scholar

    Li Zhenghui, Liu Xiaoming, Dong Yunpeng and Xiao Zhibin.2013.Geochemistry and zircon U-Pb age of the Paleoproterozoic syncollisional granites in Helanshan region and its geological significance[J].Acta Petrologica Sinica, 29(7):2405-2415(in Chinese with English abstract).

    Google Scholar

    Liu Ye, Liu Xiaoming, Hu Zhaochu, Diwu Chunrong, Yuan Honglin, Gao Shan.2007.Evaluation of accuracy and long term stability of Determination of 37 trace elements in geological samples by ICPMS[J].Acta Petrologica Sinica, 23(5):1203-1210

    Google Scholar

    Ludwig K R.2003.User's Manual for Isoplot 3.00.A Geochronological Toolkit for Microsoft Excel[M].Berkeley:Berkeley Geochronology Center Special Publication, 1-70.

    Google Scholar

    Ma Mingzhu.2015.Early Precambrian geological evolution of several typical areas in western North China Craton:Geology, SHRIMP zircon dating and geochemistry[D].Chinese Academy of Geologecal Sciences, 1-140(in Chinese with English abstract).

    Google Scholar

    Ma Mingzhu, Dong Chunyan, Xu Zhongyuan, Xie Shiwen, Liu Dunyi, Wan Yusheng.2015.Anatexis of Early Paleoproterozoic garnetbiotite gneisses (Daqingshan supracrustal rocks) in Daqingshan, Inner Mongolia:Geology, zircon geochronology and geochemistry[J].Acta Petrologica Sinica, 31(6):1535-1548(in Chinese with English abstract).

    Google Scholar

    Maniar P D, Piccoli P M.1989.Tectonic discrimination of granitoids Geological[J].Society of America Bulletin, 101:635-643. doi: 10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2

    CrossRef Google Scholar

    Middlemost E A K.1994.Naming materials in the magma/igneous rock system[J].Earth-Science Reviews, 37:215-224. doi: 10.1016/0012-8252(94)90029-9

    CrossRef Google Scholar

    Pearce J A, Harris B W and Tindle A G.1984.Trace element discrimination diagrams for the tectonic interpretation of granitic rocks[J].Journal of Petroleum Geology, 25(4):956-983.

    Google Scholar

    Song Biao, Nutman A P, Liu Dunyi, Wu Jiashan.1996.3800 to 2500 Ma crustal evolution in the Anshan area of Liaoning Province, Northeastern China[J].Precambrian Research, 78(1):79-94.

    Google Scholar

    Sun S S, McDonough W F.1989.Chemical and isotopic systematics of oceanic basalts:Implications for mantle composition and processes[C]//Saunders A D, Norry M J (eds.).Magmatism in the Ocean Basins, London:Geological Society Special Publications, 42:313-345.

    Google Scholar

    Sylvester P J.1998.Post-collisional strongly peraluminous granites[J].Lithos, 45(1/4):29-44.

    Google Scholar

    Wan Yusheng, Liu Dunyi.Song Biao.Wu Jishan.Yang Chonghui. Zhang Zongqing.Geng Yuansheng.2005.Geochemical and Nd isotopic compositions of 3.8 Ga meta-quartz dioritic and trondhjemitic rocks from the Anshan area and their geological significance[J].Journal of Asian Earth Sciences, 24(5):563-575. doi: 10.1016/j.jseaes.2004.02.009

    CrossRef Google Scholar

    Wan Yusheng, Song Biao, Liu Dunyi, Simon A wilde, Wu Jiashan, Shi Yuruo, Yin Xiaoyan, Zhou Hongying.2006.SHRIMP U-Pb zircon geochronology of Palaeoproterozoic metasedimentary rocks in the Notrh China Craton:Evidence for major Late Palaeoproterozoic tectonotherma1 event[J].Precambrian Research, 149(3-4):249-271. doi: 10.1016/j.precamres.2006.06.006

    CrossRef Google Scholar

    Wan Yusheng, Xu Zhongyuan, Dong Chunyan, Allen Nutman, Ma Mingzhu, Xie Hangqiang, Liu Shoujie, Liu Dunyi, Wang Huicu, Cu Hang.2013.Episodic Paleoproterozoic (~2.45 Ga, ~1.95 Ga and ~1.85 Ga) mafic magmatism and associated high temperature metamorphism in the Daqingshan area, North China Craton:SHRIMP zircon U-Pb dating and whole-rock Ge[J].Precambrian Research.224:71-93. doi: 10.1016/j.precamres.2012.09.014

    CrossRef Google Scholar

    Watson E B, Harrison T M.Zircon saturation revisited:temperature and composition effects in a variety of crustal magma types[J].Earth&Planetary Science Letters, 1983, 64(2):295-304.

    Google Scholar

    Xiao Qinghui, Deng Jinfu, Ma Daquan, Hong Dawei, Mo Xuanxue, Lu Xinxiang, Li Zhichang, Wang Xiongwu, Ma Changqian, Wu Fuyuan, Luo Zhaohua, Wang Tao.2002.The ways of investigation on granitoids[M].Beijing:Geological Publishing House, 1-88(in Chinese with English).

    Google Scholar

    Xu Zhongyuan, Liu Zhenghong, Yang Zhensheng.2002.The strata texture of khondalite in daqingshan area, inner Mongolia[J].Journal of Jilin University (Earth science edition), 32(4):313-318(in Chinese with English abstract).

    Google Scholar

    Yang Zhensheng, Xu Zhongyuan, Liu Zhenghong.2000.Khondalite event and Archean crust structure evolvement[J].Progress in precambrian research, 23(4):206-212.(in Chinese).

    Google Scholar

    Yang Zhensheng, Xu Zhongyuan, Liu Zhenghong, Peng Xiangdong.2003.Consideration and practice of the construction of litho stratigraphic systems in high-grade metamorphic terrains-A case study in the Daqingshan-Wulashan area[J].Geology in China, 30(4):343-351.(in Chinese with English abstract).

    Google Scholar

    Yin Changqing, Zhao Gguochun, Guo Jinghui, Sun Min, Xia Xiaoping, Zhou Xiwen, Liu Chaohui.2011.U-Pb and Hf isotopic study of zircons of the Helanshan Complex:Constrains on the evolution of the Khondalite Belt in the Western Block of the North China Craton[J].Lithos, 122(1-2):25-38. doi: 10.1016/j.lithos.2010.11.010

    CrossRef Google Scholar

    Zhai Mingguo, Bian Aiguo, Zhao Taiping.2000.The amalgamation of the supercontinent of North China Craton al the end of Neoarchaean and its breakup during lade Palaeoproterozoic and Mesoproterozoic[J].Sci.China (D), 43(suppl.):219-232.

    Google Scholar

    Zhai Mingguo, Liu Wenjun.2003.Palaeoproterozoic tectonic history of North China craton:A review[J].Precambrian Research, 122(1/4):193-199.

    Google Scholar

    Zhai Mingguo.2011.Cratonization and the Ancient North China Continent:A summary and review[J].Sci.China (Earth Sci.), 54:1110-1120(in Chinese). doi: 10.1007/s11430-011-4250-x

    CrossRef Google Scholar

    Zhao Guochun, Sun Min, Wilde S A.2002.Basement tectonic features of the North China craton and early Proterozoic flattening[J].Science in China (SeriesD), 32(7):538-549

    Google Scholar

    Zhao Guochun, Sun Min, Wilde S A, Li Sanzhong.2005.Late Archean to Paleoproterozoic evolution of the North China Craton:Key issues revisited[J].Precambrian Research, 136:177-202. doi: 10.1016/j.precamres.2004.10.002

    CrossRef Google Scholar

    Zhao Guochun.2009.Metamorphic evolution of major tectonic units in the basement of the North China Craton:Key issues and discussion[J].Acta Petrologica Sinica, 25(8):1772-1792(in Chinese with English abstract).

    Google Scholar

    Zhao Guochun, Wilde S A, Guo Jinghui.2010.Single zircon gains record two Palaeoproterozoic collisional event in the North China Craton[J].Precambrian Research, 177(3/4), 266-276.

    Google Scholar

    Zhao Yue, Chen Bin, Zhang Shuanhong, Liu JianMin, Hu Jianmin, Liu Jian, Pei Junling.2010.Pre-Yanshanian geological events in the northern margin of the North China Craton and its adjacent areas[J].Geology in China, 37(4):900-915(in Chinese with English abstract).

    Google Scholar

    Zhong Changting, Deng Jinfu, WanYusheng, Mao Deban and Li Huimin.2007.Magma recording of Paleoproterozoic orogeny in central segment of northern margin of North China Craton:Geochemical characteristics and zircon SHRIMP dating of S-type granitoids[J].Geochimica.47(1):586-598(in Chinese with English abstract).

    Google Scholar

    柏道远, 陈必河, 钟响, 贾朋远, 熊雄.2014.湘西南印支期五团岩体锆石SHRIMP U-Pb年龄、地球化学特征及形成背景[J].中国地质, 41(6):2002-2018.

    Google Scholar

    毕明丽, 路来君, 赵庆英, 刘正宏.2008.内蒙古大青山地区孔兹岩系中大理岩岩组的地球化学特征及原岩建造[J].中国地质, 35(4):639-647.

    Google Scholar

    蔡佳, 刘平华, 刘福来, 刘建辉, 王舫, 施建荣.2013.大青山-乌拉山变质杂岩带石拐地区富铝片麻岩成因矿物学与变质演化[J].岩石学报, 29(2):437-461.

    Google Scholar

    陈小明, 王汝成, 刘昌实, 胡欢, 张文兰, 高剑锋.2002.广东从化佛冈(主体)黑云母花岗岩定年和成因[J].高校地质学报, 8(3):293-307.

    Google Scholar

    邓晋福, 罗照华, 苏尚国, 莫宣学, 于炳松, 赖兴运, 谌宏伟.2004.岩石成因、构造环境与成矿作用[M].北京:地质出版社, 33-49.

    Google Scholar

    董春艳, 刘敦一, 万渝生, 徐仲元, 王伟, 颉颃强.2009.内蒙古大青山地区早前寒武纪变质岩的锆石Hf同位素组成和稀土模式[J].地质论评, 55(4):509-518.

    Google Scholar

    李正辉, 柳小明, 董云鹏, 肖志斌.2013.贺兰山古元古代同碰撞花岗岩地球化学、锆石U-Pb年代及其地质意义[J].岩石学报, 029(07):2405-2415.

    Google Scholar

    李三忠, 李玺瑶, 戴黎明, 刘鑫, 张臻, 赵淑娟, 郭玲莉, 赵国春, 张国伟.2015.前寒武纪地球动力学(Ⅵ):华北克拉通形成[J].地学前缘, 22(6):77-96.

    Google Scholar

    刘建辉, 刘福来, 丁正江, 陈军强, 刘平华, 施建荣, 蔡佳, 王舫.2013.乌拉山地区早古元古代花岗质片麻岩的锆石U-Pb年代学、地球化学及成因[J].岩石学报, 29(2):485-500.

    Google Scholar

    李江海, 钱祥麟, 刘树文.1999.华北克拉通中部孔兹岩系的地球化学特征及其大陆克拉通化意义[J].中国科学(D辑), 29(3):193-203.

    Google Scholar

    刘金科, 张道涵, 魏俊浩付乐兵, 谭俊, 王大钊, 施海鹏, 王艺龙.2016.贺兰山北段古元古代S型花岗岩岩石地球化学、锆石UPb年代学及其地质意义[J].中南大学学报(自然科学版), 47(1):187-197. doi: 10.11817/j.issn.1672-7207.2016.01.026

    CrossRef Google Scholar

    刘守偈, 李江海.2007.超高温变质作用:以华北内蒙古土贵乌拉地区为例[J].地学前缘, 14(3):132-137.

    Google Scholar

    刘涛涛, 戴朝成, 王新亮.2016.内蒙古中部乌拉山地区富铝片麻岩的地球化学特征和原岩建造[J].科学技术与工程, 16(30):17-27. doi: 10.3969/j.issn.1671-1815.2016.30.004

    CrossRef Google Scholar

    刘喜山, 金巍, 李树勋.1992.内蒙古中部早元古代造山事件中麻粒岩相低压变质作用[J].地质学报.66(3):244-256.

    Google Scholar

    刘晔, 柳小明, 胡兆初, 第五春荣, 袁洪林, 高山.2007.ICP-MS测定地质样品中37个元素的准确度和长期稳定性分析[J].岩石学报, 23(5):1203-1210

    Google Scholar

    马铭株. 2015. 华北克拉通西部典型地区早前寒武纪地质演化——地质、SHRIMP年代学及地球化学研究[D]. 中国地质科学院, 1-140.http://cdmd.cnki.com.cn/Article/CDMD-82501-1015584774.htm

    Google Scholar

    马铭株, 董春艳, 徐仲元, 谢士稳, 刘敦一, 万渝生.2015.内蒙古大青山地区古元古代早期榴云片麻岩(大青山表壳岩)深熔作用:地质、锆石年代学和地球化学研究[J].岩石学报, 31(6):1535-1548.

    Google Scholar

    肖庆辉, 邓晋福, 马大锉, 洪大卫, 莫宣学, 卢欣祥, 李志昌, 汪雄武, 马昌前, 吴福元, 罗照华, 王涛.2002.花岗岩研究思维与方法[M].北京:地质出版社, 1-88.

    Google Scholar

    徐仲元, 刘正宏, 杨振升.2002.内蒙古大青山地区孔兹岩系的地层结构[J].吉林大学学报(地球科学版), 32(4):313-318.

    Google Scholar

    杨振升, 徐仲元, 刘正宏, 彭向东.2003.高级变质区岩石地层系统建立的思考与实践——以内蒙古大青山-乌拉山地区为例[J].中国地质, 30(4):343-351.

    Google Scholar

    杨振升, 徐仲元, 刘正宏.2000.孔兹岩系事件与太古宙构造演化[J].前寒武纪研究进展, 23(4):206-212.

    Google Scholar

    翟明国.2011.克拉通化与华北陆块的形成[J].中国科学:(地质科学), 41(8):1037-1046.

    Google Scholar

    赵国春, 孙敏, Wilde SA.2002.华北克拉通基底构造单元特征及早元古代拼合[J].中国科学(D辑), 32(7):538-549.

    Google Scholar

    赵国春.2009.华北克拉通基底主要构造单元变质作用演化及其若干问题讨论[J].岩石学报, 25(8):1772-1792.

    Google Scholar

    赵越, 陈斌, 张拴宏, 刘建民, 胡健民, 刘健, 裴军令.2010.华北克拉通北缘及邻区前燕山期主要地质事件[J].中国地质, 37(4):900-915.

    Google Scholar

    钟长汀, 邓晋福, 万渝生, 毛德宝, 李惠民.2007.华北克拉通北缘中段古元古代造山作用的岩浆记录:S型花岗岩地球化学特征及锆石SHRIMP年龄[J].地球化学, 36(6), 586-598.

    Google Scholar

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