[1]肖 林,程招勋,都士卓,等.乌兰浩特地区中性火山岩LA-ICP-MS锆石U-Pb年龄、地球化学特征及成因探讨[J].华东地质,2019,40(04):253-263.[doi:10.16788/j.hddz.32-1865/P.2019.04.002]
　XIAO Lin,CHENG Zhao-xun,DU Shi-zhuo,et al.LA-ICP-MS zircon U-Pb age, geochemistry and genesis of intermediate volcanic rocks in the Ulanhot area, Inner Mongolia[J].East China Geology,2019,40(04):253-263.[doi:10.16788/j.hddz.32-1865/P.2019.04.002]
点击复制

乌兰浩特地区中性火山岩LA-ICP-MS锆石U-Pb年龄、地球化学特征及成因探讨()
分享到：

《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
40
期数:
2019年04期
页码:
253-263
栏目:
基础地质
出版日期:
2019-12-01

文章信息/Info

Title:
LA-ICP-MS zircon U-Pb age, geochemistry and genesis of intermediate volcanic rocks in the Ulanhot area, Inner Mongolia
文章编号:
2096-1871(2019)04-253-11
作者:
肖 林; 程招勋; 都士卓; 张允鹏
(黑龙江省地质调查研究总院,哈尔滨 150036)
Author(s):
XIAO Lin; CHENG Zhao-xun; DU Shi-zhuo; ZHANG Yun-peng
(Heilongjiang Institute of Geological Survey, Harbin 150036, China)
关键词:
中性火山岩;  锆石U-Pb年龄;  地球化学特征;  内蒙古乌兰浩特地区
Keywords:
intermediate volcanic rock;  zircon U-Pb age;  geochemical characteristics;  Ulanhot area;  Inner Mongolia
分类号:
P588.12
DOI:
10.16788/j.hddz.32-1865/P.2019.04.002
文献标志码:
A
摘要:
乌兰浩特地区出露一套以辉石安山岩为主的中性火山岩组合。LA-ICP-MS锆石U-Pb测年结果显示,该套火山岩锆石U-Pb年龄为130.0±1.5 Ma和129.9±1.4 Ma,表明其形成于早白垩世。辉石安山岩SiO2含量为57.84%～60.86%, Al2O3含量为16.49%～17.76%, A/CNK>1.1,属过铝质岩石; ALK值为11.19%～11.87%,σ为1.08～1.98; ∑REE为(128.69～145.06)×10-6,(La/Sm)N为4.64～5.24,(La/Yb)N为6.58～8.09,轻稀土元素富集程度高且轻、重稀土元素分馏明显; Eu异常不明显,大离子亲石元素Rb、Ba、K、Sr富集,高场强元素Nb、Ti、P、Ta亏损,推断该中性火山岩的形成与蒙古—鄂霍次克洋闭合陆壳加厚之后的岩石圈伸展有关。
Abstract:
Abstract:A set of intermediate volcanic rock assemblages dominated by pyroxene andesite is exposed in the Ulanhot area. The LA-ICP-MS zircon U-Pb dating results show that the volcanic rocks have two zircon U-Pb ages of 130.0 ±1.5 Ma and 129.9 ±1.4 Ma, suggesting that the volcanic rocks were formed in the Early Cretaceous. Pyroxene andesite has SiO2 content of 57.84%～60.86%, Al2O3 of 16.49%～17.76%, A/CNK> 1.1, suggesting that the rock belongs to peraluminous rock. ALK value is 11.19%～11.87%, σ is 1.08～1.98. ∑REE of(128.69～145.06)×10-6,(La/Sm)N of 4.64～5.24 and(La/Yb)N of 6.58～8.09 show enrichment of light rare earth elements and distinct fractionation of light and heavy rare earth element. Weak Eu anomaly, enrichment of large ion lithophile elements(Rb, Ba, K and Sr)and depletion of high field strength elements(Nb, Ti, P and Ta)suggest that its formation is related to the lithospheric extension which followed continental crust thickening after closure of the Mongolian-Okhotsk Ocean.

参考文献/References:

[1] 周志广,柳长峰,於炀森,等. 内蒙古1:25万乌兰浩特市幅区域地质调查报告[R].北京:中国地质大学(北京),2013.

[2] 李长民.锆石成因矿物学与锆石微区定年综述[J].地质调查与研究,2009, 33(3):161-174.
[3] 陶传忠,李伫民,王大千,等. 乌兰浩特地区玛尼吐组火山岩LA-ICP-MS锆石U-Pb定年及地球化学特征[J].地质与资源,2015, 24(2):102-109.
[4] LIGHTFOOT P C, HAWKESWORTH C J, SETHNA S F. Petrogenesis of rhyolithes and trachytes form the Deccan Trap: Sr, Nd and Pb isotope and trace element evidence[J].Contributions to Mineralogy and Petrology, 1987, 95(1):44-54.
[5] MOLLEL G F, SWISHER C C, MCHENRY L J,et al. Petrogenesis of basalt-trachyte lavas from Olmoti Crater,Tanzania[J].Journal of African Earth Sciences, 2009, 54(5):127-143.
[6] PANTER K S, KYLE P R, SMELLIE J L. Petrogenesis of a Phonolite-Trachytes Succession at Mount Sidley, Marie Byrd Land, Antarctica[J].Journal of Petrology, 1997, 38(9):1225-1253.
[7] 张吉衡. 大兴安岭中生代火山岩年代学及地球化学研究[D]. 武汉:中国地质大学(武汉),2009.
[8] 林强,葛文春,孙德有,等. 大兴安岭中生代两类流纹岩与玄武岩的成因联系[J].长春科技大学学报,2000, 30(4):322-328.
[9] BOHRSON W A, REID M R. Genesis of Silicic Peralkaline Volcanic Rocks in an Ocean Island Setting by Crustal Melting and Open-system Processes: Socorro Island, Mexico[J].Journal of Petrology, 1997, 38(9):1137-1166.
[10] YILDIRIM D K, KILINC A. The Role of Magma Mixing in the Differentiation of Koru Volcanics, NW, Turkey[J].American Geophysical Union, 2010.
[11] MINGRAM B, TRUMBULL R B, LITTMAN S, et al. A Petrogenetic study of anorogenic felsic magmatism in the Cretaceous Paresis ring complex, Namibia: Evidence for mixing of crust and mantle-derived components[J].Lithos, 2000, 54(1/2):1-22.
[12] 吴英华,张连昌,周新华,等. 大兴安岭中段晚中生代安山岩年代学和地球化学特征及成因分析[J].岩石学报,2008, 24(6):1339-1352.
[13] 代富强,赵子福,郑永飞. 板片-地幔相互作用: 大别造山带碰撞后安山质火山岩成因[C]//中国矿物岩石地球化学学会第15届学术年会论文摘要集(2).2015.
[14] 于炳松,赵志丹,苏尚国. 岩石学[M].北京:地质出版社,2012.
[15] 施璐,唐振,郑常青,等. 大兴安岭中部柴河—蘑菇气地区早白垩世中性火山岩岩石成因及构造背景[J].地质通报,2018, 37(9):1620-1632.
[16] BARTH M G, MCDONOUGH W F, RUDNICK R L. Tracking the budget of Nb and Ta in the continental crust[J].Chemical Geology, 2000, 165(3/4):197-213.
[17] GREEN T H. Significance of Nb/Ta as an indicator of geochemical processes in the crust-mantle system[J].Chemical Geology, 1995, 120(3/4):347-359.
[18] STOLZ A J, JOCHUM K P, SPETTEL B, et al. Fluid-and melt-related enrichment in the subarc mantle: Evidence from Nb/Ta nariations in island-arc ba-salts[J].Geology, 1996, 24(7):587-590.
[19] RUDNICK R L, GAO S. Composition of the continental crust [A]∥HOLLAND H D, TUREKIAN K K. Treatise on Geochemistry[C].Oxford: Elsevier-Pergamon, 2003(3):1-64.
[20] BEA F, ARZAMASTSEV A, MONTERO P, et al. Anomalous alkaline rocks of soustov, Kola: Evidence of mantle-derived metasomatic fluids affecting crustal materials[J]. Contributions to Mineralogy and Petrology, 2001, 140(5):554-566.
[21] SUN S S, MCDONOUGH W F. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and process[C]. Geological Society,London, Special Publications, 1989, 42:313-345.
[22] CONDIE K C. Geochemical changes in basalts and andesites across the Archaean-Proterozoic boundary: Identification and significance[J]. Lithos, 1989, 23(1/2):1-18.
[23] 张旗,王焰,李承东,等. 花岗岩的Sr-Yb分类及其地质意义[J].岩石学报,2006, 22(9):2249-2269.
[24] 张旗,金惟俊,李承东,等. 再论花岗岩按照Sr-Yb的分类:标志[J].岩石学报,2010, 26(4):985-1015.
[25] 张旗,许继峰,王焰,等. 埃达克岩的多样性[J].地质通报,2004, 23(9/10):959-965.
[26] 王焰,张旗,钱青. 埃达克岩(adakite)的地球化学特征及其构造意义[J].地质科学,2000, 35(2):251-256.
[27] TARNEY J, JONES C E. Trace element geochemistry of orogenic igneous rocks and crustal growth mo-dels[J].Joumal of the Geological Society, 1994, 151(5):855-868.
[28] 李永飞,孙守亮,郜晓勇.大兴安岭中段突泉盆地高Mg#火山岩激光全熔40Ar/39Ar测年与地球化学特征[J].地质与资源,2013, 22(4):264-272.
[29] 赵国龙,杨桂林,傅嘉友,等. 大兴安岭中南部中生代火山岩[M].北京:科学技术出版社,1989.
[30] 林强,葛文春,曹林,等. 大兴安岭中生代双峰式火山岩的地球化学特征[J].地球化学, 2003, 32(3):208-222.
[31] 葛文春,林强,孙德有,等. 大兴安岭中生代玄武岩的地球化学特征: 壳幔相互作用的证据[J].岩石学报,1999, 15(3):396-407.
[32] 郭峰,范蔚茗,王岳军,等. 大兴安岭南段晚中生代双峰式火山作用[J].岩石学报,2001, 17(1):161-168.
[33] 张昱,赵焕力,李仰春,等. 大兴安岭北段根河地区早白垩世火山杂岩特征及成因探讨[J].中国地质,2005, 32(3):405-410.
[34] 孙德有,苟军,任云生,等. 满洲里南部玛尼吐组火山岩锆石U-Pb年龄与地球化学研究[J].岩石学报,2011, 27(10):3083-3094.
[35] 葛文春,吴福元,周长勇,等. 大兴安岭中部乌兰浩特地区中生代花岗岩的锆石U-Pb年龄及地质意义[J].岩石学报,2005, 21(3):749-762.
[36] 余宏全,李进文,向安平,等. 大兴安岭中北段原岩锆石U-Pb 测年及其与区域构造演化关系[J].岩石学报,2012, 28(2):571-594.
[37] 苟军. 满洲里南部中生代火山岩的时代、成因及构造背景[D].长春:吉林大学,2013.
[38] 张旗. 中国东部中生代岩浆活动与太平洋板块向西俯冲有关吗?[J].岩石矿物学杂志,2013, 32(1):113-128.
[39] ZORIN Y A. Geodynamics of the westem part of the Mongolia-Okhotsk collisional belt, trans-Baikal region(Russia)and Mongolia[J].Tectonophyscs, 1999, 306(1):33-56.
[40] PEARCE J A, HARRIS N B W, TINDLE A G. Trace element discrimination diagrams for the tectonic interpretation of granitic rocks[J]. Journal of Petrology, 1984,25(4):956-983.
[41] 张旗,潘国强,李承东,等. 花岗岩构造环境问题——关于花岗岩研究的思考之三[J].岩石学报,2007, 23(11):2683-2698.
[42] 王建中,钱壮志,徐刚,等. 西秦岭白马山“C”型埃达克岩成因: 地球化学、Sr-Nd-Pb同位素制约[J].华东地质,2016, 37(3):174-181.
[43] 赵志雄,许海,贾元琴,等. 内蒙古北山地区斑状花岗闪长岩地球化学、LA-ICP-MS锆石U-Pb年龄及地质意义[J].华东地质,2016, 37(4):252-258.
[44] 李云峰,赵玥,孙春林,等. 黑龙江北部新生地区早白垩世龙江组火山岩年代学、地球化学特征及其地质意义[J].世界地质,2015, 34(1):12-24.
[45] 韩吟文,马振东,张宏飞,等. 地球化学[M].北京:地质出版社,2003.
[46] 张芳荣,王会敏,滑鑫,等. 新疆东准格尔纸房东地区奥尔吐组的厘定及火山岩形成时代[J].华东地质,2017, 38(3):161-167.
[47] 王杰,姚玉来,丁秋红,等. 内蒙古扎鲁特旗地区晚侏罗世火山岩岩石学及地球化学特征[J].地质科技情报,2014, 33(6):18-27.

相似文献/References:

[1]孙建东,骆学全,张雪辉,等.江西省铅山县二叠纪海相火山岩锆石U-Pb年龄及Lu-Hf同位素组成[J].华东地质,2016,37(04):246.[doi:10.16788/j.hddz.32-1865/P.2016.04.002]
　SUN Jian-dong,LUO Xue-quan,ZHANG Xue-hui,et al.Zircon U-Pb age and Lu-Hf isotopic compositions of the Permian marine volcanic rocks in Qianshan County, Jiangxi Province[J].East China Geology,2016,37(04):246.[doi:10.16788/j.hddz.32-1865/P.2016.04.002]
[2]赵志雄,许 海,贾元琴,等.内蒙古北山地区斑状花岗闪长岩地球化学、LA-ICP-MS锆石U-Pb年龄及地质意义[J].华东地质,2016,37(04):252.[doi:10.16788/j.hddz.32-1865/P.2016.04.003]
　ZHAO Zhi-xiong,XU Hai,JIA Yuan-qin,et al.Geochemistry and LA-ICP-MS zircon U-Pb age of porphyritic granodiorite in the Beishan orogenic belt in Inner Mongolia and their geological significance[J].East China Geology,2016,37(04):252.[doi:10.16788/j.hddz.32-1865/P.2016.04.003]
[3]史洪峰,续琰祺,张 景,等.西藏赛卓花岗闪长岩锆石U-Pb年龄、地球化学特征及构造意义[J].华东地质,2018,39(02):90.[doi:10.16788/j.hddz.32-1865/P.2018.02.002]
　SHI Hong-feng,XU Yan-qi,ZHANG Jing,et al.Geochemistry and zircon U-Pb dating of the Saizhuo granodiorite in Tibet and their tectonic significance[J].East China Geology,2018,39(04):90.[doi:10.16788/j.hddz.32-1865/P.2018.02.002]
[4]周琦忠,张 琪,宗德林,等.徐州贾汪地区暗色岩锆石U-Pb年龄及金刚石成因探讨[J].华东地质,2018,39(03):202.[doi:10.16788/j.hddz.32-1865/P.2018.03.006]
　ZHOU Qi-zhong,Zhang Qi,ZONG De-lin,et al.Zircon U-Pb dating of dark rocks in the Jiawang area, Xuzhou, and diamond genesis analysis[J].East China Geology,2018,39(04):202.[doi:10.16788/j.hddz.32-1865/P.2018.03.006]
[5]杨义忠,王 徽,蔡 杨,等.北淮阳东段板桥岩体地球化学特征及同位素年代学研究[J].华东地质,2018,39(04):241.[doi:10.16788/j.hddz.32-1865/P.2018.04.001]
　YANG Yi-zhong,WANG Hui,CAI Yang,et al.Geochemical characteristics and isotope chronology study of the Banqiao granodiorite in the eastern part of North Huaiyang[J].East China Geology,2018,39(04):241.[doi:10.16788/j.hddz.32-1865/P.2018.04.001]
[6]范飞鹏,陈乐柱,李海立,等.南岭东段枫树洞稀土矿中辉长质包体锆石U-Pb年代学、地球化学特征及其成岩作用[J].华东地质,2020,41(04):325.[doi:10.16788/j.hddz.32-1865/P.2020.04.003]
　FAN Fei-peng,CHEN Le-zhu,LI Hai-li,et al.Zircons in the gabbro enclaves of Fengshudong REE deposit in Eastern Nanling Mountains: Chronology, geochemistry and diagenesis[J].East China Geology,2020,41(04):325.[doi:10.16788/j.hddz.32-1865/P.2020.04.003]

备注/Memo

备注/Memo:
*收稿日期:2018-10-24 修订日期:2019-04-10 责任编辑:谭桂丽
基金项目:中国地质调查局“内蒙古1:5万前公主陵等六幅区域地质调查(编号:DD20160048-10)”项目资助。
第一作者简介:肖林,1991年生,男,助理工程师,主要从事区域地质矿产调查工作。
更新日期/Last Update: 2019-11-25