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北山地区园包山一带晚石炭世早期花岗岩地球化学特征及年代学研究
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  • 英文篇名:Geochemical characteristics and chronology of early Late Carboniferous granites in Yuanbaoshan area,Beishan region
  • 作者:李杰 ; 田颖 ; 班长勇 ; 冯翼鹏 ; 陈圆圆 ; 李金和
  • 英文作者:LI Jie;TIAN Ying;BAN Chang-yong;FENG Yi-peng;CHEN Yuan-yuan;LI Jin-he;Hebei Academy of Regional Geological Survey;
  • 关键词:北山北部 ; 晚石炭世花岗岩 ; 岛弧 ; 埃达克岩
  • 英文关键词:northern Beishan;;granites of early Late Carboniferous;;island arc;;adakite
  • 中文刊名:YSKW
  • 英文刊名:Acta Petrologica et Mineralogica
  • 机构:河北省区域地质调查院;
  • 出版日期:2019-03-25
  • 出版单位:岩石矿物学杂志
  • 年:2019
  • 期:v.38;No.178
  • 基金:内蒙古自治区地质勘查基金(NMKD2014-11)~~
  • 语种:中文;
  • 页:YSKW201902002
  • 页数:13
  • CN:02
  • ISSN:11-1966/P
  • 分类号:18-30
摘要
园包山晚古生代花岗岩位于内蒙古额济纳旗园包山一带,其岩体特征对红石山蛇绿岩带属性及北山北带的构造演化的重建具有重要意义。通过LA-ICP-MS锆石U-Pb同位素测年,确定园包山复式岩基中花岗闪长岩、二长花岗岩、奥长花岗岩的年龄分别为317.1±3.1、314.8±2.7和313.7±2.3 Ma,均属晚石炭世。岩石地球化学分析表明,园包山花岗岩高硅(SiO_2=67.77%~73.00%)、富钠(K_2O/Na_2O<1),A/CNK=0.95~1.13,属偏铝到弱过铝质,富集大离子亲石元素(Rb、Ba、Th、K),亏损高场强元素(Ta、Nb、P、Ti),具有中等强度的负铕异常(δEu=0.46~0.65),呈现出岛弧环境的岩石地球化学特征。其中奥长花岗岩与花岗闪长岩、二长花岗岩又有所不同,岩石样品富硅,具非常弱的负铕异常(δEu=0.81~0.99),高Sr/Y和La/Yb,在Sr/Y-Y图上落入埃达克岩区域。上述特征差异暗示两者具有不同的源区。综合区域地质资料来看,晚石炭世早期研究区南侧红石山洋向北俯冲启动了这次大规模构造岩浆活动,形成了具岛弧性质的园包山花岗岩复式岩基,其中具埃达克质特征的奥长花岗岩来源于俯冲的洋板块的部分熔融,暗示红石山洋可能属较为年轻的热洋壳。
        The Yuanbaoshan Late Carboniferous granite is located in the Yuanbaoshan area,Ejin Banner,Inner Mongolia.Its rock mass characteristics are of great significance for the study of the properties of the Hongshishan ophiolite belt and the reconstruction of the tectonic evolution of the northern Beishan region.LA-ICP-MS zircon U-Pb isotopic dating shows that the ages of granodiorite,monzonitic granite,and trondhjemite in the Yuanbaoshan composite batholith are 317.1+3.1 Ma,314.8+2.7 Ma and 313.7+2.3 Ma respectively,suggesting Late Carboniferous.The petrogeochemical analysis shows that the granites of the Yuanbaoshan composite batholith have high silicon(SiO_2=67.77%~73.00%),and rich sodium(K_2O/Na_2O<1)with A/CNK being 0.95~1.13,belonging to partially aluminous to weakly peraluminous,with the enrichment of LILEs(Rb,Ba,Th,K),depletion of HFSEs(Ta,Nb,P,Ti)and medium strength negative europium anomaly(δEu=0.46~0.65),similar to the petrogeochemical characteristics of island arc environment.The trondhjemite is different from the granodiorite and monozonitic granite;it is rich in silicon,has very weak negative europium anomaly(δEu=0.81~0.99),high Sr/Y and La/Yb ratios,and falls into the adakite area on the Sr/Y-Y diagram.These differences suggest that they have different source characteristics.According to the regional geological data,the subduction of the Hongshishan oceanic plate under the study area during the early Late Carboniferous initiated large-scale magmatic activity and formed the Yuanbaoshan granite composite batholith with island arc affinity.The plagioclase granite with adakitelike characteristics originated from partial melting of the subductional oceanic plate,implying that the Hongshishan Ocean might have had a relatively young hot oceanic crust during the early Late Carboniferous period.
引文
Castillo P R.2006.A review of the genesis of the adakite[J].Science Bulletin,51(6):617~627(in Chinese).
    Defant M J and Drummond M S.1990.Derivartion of some modem arc magmas by melting of young subduction lithosphere[J].Nature,34:662~665.
    Drummond M S and Defant M J.1990.A model for trondhjemitetrondhjemite-dacite genesis and crustal growth via slab melting:Archean to modern comparisons[J].Geophys.Res.,95:21 503~21521.
    Gong Quansheng,Liu Mingqiang,Li Hailin,et al.2002.The type and basic characteristics of Beishan orogenic belt,Gansu[J].Northwestern Geology,35(3):28~34(in Chinese with English abstract).
    Gong Quansheng,Liu Mingqiang,Liang Minghong,et al.2003.The tectonic facies and tectonic evolution of Beishan orogenic belt,Gansu[J].Northwestern Geology,36(1):11~16(in Chinese with English abstract).
    Green T H.1980.Island arc and continent-building magmatism-A review of petrogenic models based on experimental petrology and geochemistry[J].Tectonophys,63:367~385.
    Guo Hong,Li Xia,Mao Qigui,et al.2006.Characteristics of magmatic Cu-Ni sulfide deposits and their geodynamic mechanism in the East TianShan,Xinjiang[J].Xinjiang Geology,24(2):135~140(in Chinese with English abstract).
    He Shiping,Ren Bingchen,Yao Wenguang,et al.2002.The division of tectonic units of Beishan area,Gansu-Inner Mongolia[J].Northwestern Geology,35(4):30~40(in Chinese with English abstract).
    He Shiping,Zhou Huiwu,Ren Bingchen,et al.2005.Crustal evolution of Palaeozoic in Beishan area,Gansu and lnner Mongolia,China[J].Northwestern Geology,38(3):6~15(in Chinese with English abstract).
    Huang Zengbao and Jin Xia.2006.Geochemistry features and tectonic setting of the Hongshishan ophiolite in Gansu province[J].Chinese Journal of Geology,41(4):601~611(in Chinese with English abstract).
    Li Changnian.1992.A geochemical method for tectonomagmatic discrimination[J].Geological Science and Technology Information,11(3):73~84(in Chinese with English abstract).
    Li Chunyu and Tang Yaoqing.1983.Some problems on subdivision of palaeo-plates in Asia[J].Acta Geologica Sinica,(1):1~10(in Chinese with English abstract).
    Liu Xueya and Wang Quan.1995.Tectonics of orogenic belts in Beishan Mts.,western China and their evolution[J].Geoscience Research,28:37~48(in Chinese with English abstract).
    Lu Jincai,Niu Yazhuo,Wei Xianyang,et al.2013.LA-ICP-MS zircon U-Pb dating of the Late Paleozoic volcanic rocks from the Hongshishan area of the Beishan orogenic belt and its tectonic significances[J].Acta Petrologica Sinica,29(8):2 685~2 694(in Chinese with English abstract).
    Nie Fengjun,Jiang Sihong and Bai Daming.2002.Metallogenic Regularity and Prospecting Direction of Metal Deposits in Beishan Area[M].Beijing:Geological Publishing House,1~499(in Chinese with English abstract).
    Ren Yunwei,Ren Bangfang,Niu Wenchao,et al.2019.Carboniferous volcanics from the Baishan Formation in the Hazhu area,Inner Mongolia:Implications for the Late Paleozoic active continental margin magmatism in the northern Beishan Mountain[J].Earth Science,44(1):312~327(in Chinese with English abstract).
    Sun Lixin,Zhang Jiahui,Ren Bangfang,et al.2017.Geochemical characteristics and U-Pb age of Baiyunshan ophiolite melange in the Beishan orogenic belt and their geological implications[J].Acta Petrologica et Mineralogica,36(2):131~147(in Chinese with English abstract).
    Thieblemont D,Stein G and Lescuyer J L.1997.Gisements epithermaux et porphyriques:la connexion adakite[J].Earth and Planetary Sciences,325:103~109.
    Wang Guoqiang,Li Xiangmin,Xu Xueyi,et al.2014.Ziron U-Pb chronological study of the Hongshishan ophiolite in the Beishan area and their tectonic significance[J].Acta Petrologica Sinica,30(6):1 685~1 694(in Chinese with English abstract).
    Wang Guoqiang,Li Xiangmin,Xu Xueyi,et al.2018.Petrogenesis and tectonic setting of the Carboniferous and Permian volcanic rocks in the Beishan orogenic belt[J].Acta Petrdogica et Mineralogica,37(6):884~900(in Chinese with English abstract).
    Wei Zhijun,Huang Zengbao,Jin Xia,et al.2004.Geological characteristics of ophiolite migmatitic complex of Hongshishan region,Gansu[J].Northwestern Geology,37(1):13~18(in Chinese with English abstract).
    Yang Hequn,Li Ying,Zhao Guobin,et al.2010.Character and structural attribute of the Beishan ophiolite[J].Northwestern Geology,43(1):26~36(in Chinese with English abstract).
    Yang Hequn,Zhao Guobin,Li Ying,et al.2012.The relationship between paleozoic tectonic setting and mineralization in Xinjiang-GansuInner Mongolia juncture area[J].Geological Bulletin of China,31(2/3):413~421(in Chinese with English abstract).
    Zhao Rushi,Zhou Zhenhuan,Mao Jinhai,et al.1994.Plate-tectonic units and Tectonic evolution in Gansu[J].Regional Geology of China,(1):28~36(in Chinese with English abstract).
    Zuo Guochao and Li Maosong.1996.Formation and Evolution of Early Paleozoic Lithosphere in Beishan Area,Gansu[M].Lanzhou:Gansu science and Technology Press,1~92(in Chinese).
    Zuo Guochao,Liu Yike and Liu Chunyan.2003.Framework and evolution of the tectonic structure in Beishan area across Gansu Province,Xinjiang Autonomous Region and Inner Mongolia Autonomous Region[J].Acta Geologica Gansu,12(1):1~15(in Chinese with English abstract).
    Zuo Guochao,Zhang Shuling,He Guoqi,et al.1990.Early paleozoic plate tectonics in beishan area[J].Scientia Geologica Sinica,(4):305~315(in Chinese).
    Zhang Qi,Wang Yan,Xiong Xiaolin,et al.2008.Adakite and Granite:Challenge and Opportunity[M].Beijing:China Land Press,132~134(in Chinese with English abstract).
    Zhuan Shaopeng,Chen Tao,Shen Zongyi,et al.2018.Early Paleozoic Subduction of the ocean in Beishan region:Zircon U-Pb geochronological and geochemical evidence from the high-Mg diorite in the Shibanjing area[J].Acta Petrologica et Mineralogica,37(4):533~546(in Chinese with English abstract).
    龚全胜,刘明强,李海林,等.2002.甘肃北山造山带类型及基本特征[J].西北地质,35(3):28~34.
    龚全胜,刘明强,梁明宏,等.2003.北山造山带大地构造相及构造演化[J].西北地质,36(1):11~16.
    郭宏,李霞,毛启贵,等.2006.新疆东天山岩浆铜镍硫化物矿床地质特征及成矿环境[J].新疆地质,24(2):135~140.
    何世平,任秉琛,姚文光,等.2002.甘肃内蒙古北山地区构造单元划分[J].西北地质,35(4):30~40.
    何世平,周会武,任秉琛,等.2005.甘肃内蒙古北山地区古生代地壳演化[J].西北地质,38(3):6~15.
    黄增保,金霞.2006.甘肃红石山蛇绿岩地球化学特征及构造环境[J].地质科学,41(4):601~611.
    李昌年.1992.构造岩浆判别的地球化学方法及其讨论[J].地质科技情报,11(3):73~84.
    李春昱,汤耀庆.1983.亚洲古板块划分以及有关问题[J].地质学报,(1):1~10.
    刘雪亚,王荃.1995.中国西部北山造山带的大地构造及其演化[J].地学研究,28:37~48.
    卢进才,牛亚卓,魏仙样,等.2013.北山红石山地区晚古生代火山岩LA-ICP-MS锆石U-Pb年龄及其构造意义[J].岩石学报,29(8):2 685~2 694.
    Castillo P R.2006.埃达克岩成因回顾[J].科学通报,51(6):617~627.
    聂凤军,江思宏,白大明.2002.北山地区金属矿床成矿规律及找矿方向[M].北京:地质出版社,1~499.
    任云伟,任邦方,牛文超,等.2019.内蒙古哈珠地区石炭纪白山组火山岩---北山北部晚古生代活动陆缘岩浆作用的产物[J].地球科学,44(1):312~327.
    孙立新,张家辉,任邦方,等.2017.北山造山带白云山蛇绿混杂岩的地球化学特征、时代及地质意义[J].岩石矿物学杂志,36(2):131~147.
    王国强,李向民,徐学义,等.2014.甘肃北山红石山蛇绿岩锆石U-Pb年代学研究及构造意义[J].岩石学报,30(6):1 685~1 694.
    王国强,李向民,徐学义,等.2018.北山石炭纪-二叠纪火山岩成因及构造背景[J].岩石矿物学杂志,37(6):884~900.
    魏志军,黄增保,金霞,等.2004.甘肃红石山地区蛇绿混杂岩地质特征[J].西北地质,37(1):13~18.
    杨合群,李英,赵国斌,等.2010.北山蛇绿岩特征及构造属性[J].西北地质,43(1):26~36.
    杨合群,赵国斌,李英,等.2012.新疆-甘肃-内蒙古衔接区古生代构造背景与成矿的关系[J].地质通报,32(2/3):413~421.
    赵茹石,周振环,毛金海,等.1994.甘肃省板块构造单元划分及其构造演化[J].中国区域地质,(1):28~36.
    左国朝,李茂松.1996.甘肃北山地区早古生代岩石圈形成与演化[J].兰州:甘肃科学技术出版社,1~92.
    左国朝,刘义科,刘春燕.2003.甘新蒙北山地区构造格局及演化[J].甘肃地质学报,12(1):1~15.
    左国朝,张淑玲,何国琦,等.1990.北山地区早古生代板块构造特征[J].地质科学,(4):305~315.
    张旗,王焰,熊小林,等.2008.埃达克岩和花岗岩:挑战与机遇[M].北京:中国大地出版社,132~134.
    专少鹏,陈超,申宗义,等.2018.北山地区早古生代洋盆府冲记录---来自石板井高镁闪长岩的年代学、地球化学证据[J].岩石矿物学杂志,37(4):533~546.
    (1)李杰,班长勇,连青,等. 2017.内蒙古自治区额济纳旗园包山等三幅1∶5万区域矿产地质调查矿产地质图.

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