LA-ICP-MS U-Pb dating of zircon from basement igneous rocks in Yitong Basin and its significance

  • LI Yanjing ,
  • GAO Chao ,
  • DENG Jie ,
  • KONG Lingfei
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  • 1. Guangxi Geological Exploration Institute, China Chemical Geology and Mine Bureau, Nanning 530001, China; 2. China University of Geosciences, Wuhan 430074, China; 3. Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, China; 4. Research Institute of Exploration and Development, Jilin Oilfield Company, PetroChina, Songyuan 138000, China

Online published: 2011-12-20

Abstract

In order to determine the formation period of Yitong basement accurately, six zircon samples are selected to carry out the study on LA-ICP-MS U-Pb dating of zircon. Zircons fromthe basement igneous rock are euhedral in shape and show the typical oscillatory zoning with magmatic origin. The dating results indicate that the biotite-monzonitic granite at the depth of 2 484.2 m in C24 well in Chaluhe fault depression formed in (176.8 ±1.7 )Ma, the crack lithification perthitr monzonite at the depth of 3 153.0 min C17 well formed in (171.8±3.2)Ma, the basement igneous rocks in X5 and L2 wells in Luxiang fault depression respectively formed in (170.3±3.4)Ma and (169.1±4.5)Ma, and the basement igneous rocks in Y53 and Y3 wells in Moliqing fault depression respectively formed in(247.2±3.4)Ma and(186.6±2.5)Ma. In combination with other U-Pb dating, it is considered that the age of basement igneous rocks in Yitong Basin is mainly of 170~336 Ma, and the most formed in Yanshanian, and a little formed in Hercynian. The distribution of granite in each fault depression is different. The most of granites in Chaluhe and Luxiang fault depression formed in Yanshanian, while in Moliqing fault depression the granites formed in Hercynian, Indosinian and Yanshanian.

Cite this article

LI Yanjing , GAO Chao , DENG Jie , KONG Lingfei . LA-ICP-MS U-Pb dating of zircon from basement igneous rocks in Yitong Basin and its significance[J]. Lithologic Reservoirs, 2011 , 23(6) : 73 -78 . DOI: 10.3969/j.issn.1673-8926.2011.06.013

References

[1] 江涛,邱玉超,宋立斌,等.伊通盆地西北缘断裂带的性质[J].现代地质,2009,23(5):860-864.
[2] 李本才,孙凯,白洪彬,等.伊通盆地层序地层格架与层序构成分析[J].岩性油气藏,2009,21(4):28-31.
[3] 昌建波,吴欣松,姚睿,等.伊通盆地莫里青断陷古近系双阳组岩性油气藏成藏主控因素[C]∥王涛,贾承造,庞雄奇,等.第五届油气成藏机理与油气资源评价国际学术研讨会论文集.北京:石油工业出版社,2009:880-886.
[4] 张惠,解习农,刘耀宗.伊通地堑层序构成及层序地层格架样式[J].现代地质,1994,8(3):246-253.
[5] 李本才,刘鸿友,杜怀旭,等.伊通盆地含油气系统与油气藏[J].中国石油勘探,2003,8(3):38-44.
[6] 朱如凯,毛治国,郭宏莉,等.火山岩油气储层地质学———思考与建议[J].岩性油气藏,2010,22(2):7-13.
[7] 郭锋,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.
[8] 裴福萍,许文良,杨德彬,等.松辽盆地基底变质岩中锆石UPb年代学及其地质意义[J].科学通报,2006,51(24):2 881-2 887.
[9] 许文良,裴福萍,高福红,等.伊舒地堑基底花岗岩的锆石UPb年代学及其构造意义[J].地球科学———中国地质大学学报,2008,33(2):145-150.
[10] 吴群,蒲仁海,韩敏强,等.长岭凹陷白垩系火山岩的锆石LAICP-MSU-Pb 定年及其地质意义[J].矿物岩石,2010,30(2):111-119.
[11] 殷长建,彭玉鲸,王彦生,等.伊舒断裂带年代学新证据[J].吉林地质,2005,24(1):6-15.
[12] 潘建国,郝芳,谭开俊,等.准噶尔盆地红车断裂带古生界火山岩油气藏特征及成藏规律[J].岩性油气藏,2007,19(2):53-56.
[13] 刘成林,杜蕴华,高嘉玉,等.松辽盆地深层火山岩储层成岩作用与孔隙演化[J].岩性油气藏,2008,20(4):33-37.
[14] 李本才,孙凯,白洪彬,等.伊通盆地层序地层格架与层序构成分析[J].岩性油气藏,2009,21(4):28-31.
[15] 李献甫,陈全茂,张学海,等.伊通地堑———走滑断陷盆地的构造特征及演化[J].石油实验地质,2002,24(1):19-24.
[16] 陈宣华,王小凤,张青,等.郯庐断裂带形成演化的年代学研究[J].长春科技大学学报,2000,30(3):215-220.
[17] 唐大卿,何生,陈红汉,等.伊通盆地断裂体系特征及其演化历史[J].吉林大学学报:地球科学版,2009,39(3):386-396.
[18] 宋彪,张拴宏,王彦斌,等.锆石SHRIMP 年龄测定数据处理时系统偏差的避免———标准锆石分段校正的必要性[J].岩矿测试,2006,(1): 9-14.
[19] Frei D,Gerdes A. Precise and accurate in situ U-Pb dating of zircon with high sample throughput by automated LA-SF-ICP-MS[J]. Chemical Geology,2009,261(3/4):261-270.
[20] Storey C D,Smith M P,Jeffries T E. In situ LA-ICP-MS U-Pb dating of metavolcanics of Norrbotten,Sweden:Records of extended geological histories in complex titanite grains[J]. Chemical Geology,2007,240(1/2):163-181.
[21] Yuan H L,Gao S,Liu X M,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.
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