内蒙古乌兰盖盆地中生代火山岩年代学、地球化学特征及其地质意义

doi:10.13278/j.cnki.jjuese.201502109

摘要/Abstract

摘要：

笔者对大兴安岭西部乌兰盖盆地南、北缘出露的中生代火山岩进行了详细的岩石学、激光全熔⁴⁰Ar/³⁹Ar测年及地球化学研究,探讨了中生代火山岩成因与地质意义。乌兰盖盆地南、北缘的中生代火山岩主要为中性岩(安山岩)与酸性岩(流纹岩)类,各类岩石总体激光全熔⁴⁰Ar/³⁹Ar定年结果为(151.8±1.5)~(120.2±1.8) Ma,说明其形成时代总体为晚侏罗世晚期至早白垩世;岩石总体为一套钙碱性系列到高钾钙碱性系列的中性至酸性岩石组合,各类岩石地球化学特征与壳源岩石的地球化学特征基本一致,表明它们应来自于地壳物质局部熔融形成的壳源岩浆系列。该套火山岩形成于蒙古鄂霍茨克洋(古太平洋)闭合碰撞造山构造背景,在早白垩世151.8 Ma左右区内曾发生地壳加厚的造山过程,其岩浆深部动力学背景与岩浆源区的性质主要归因于增厚的造山带下地壳发生的部分熔融作用。

关键词: 乌兰盖盆地, 中生代, 火山岩, 激光全熔⁴⁰Ar/³⁹Ar测年, 地球化学

Abstract:

The detailed petrology, Laser ⁴⁰Ar/³⁹Ar dating and the geochemical characteristics of the Mesozoic volcanic rocks from Wulangai basin of the Western Great Xing'an Mountain have been studied on the ground of their genesis and geological implication. We suggest that the Mesozoic volcanic rocks of Wulangai basin are mainly medium (andesite) and acid rocks (rhyolite) in the age of (151.8±1.5)-(120.2±1.8) Ma by the methods of Laser ⁴⁰Ar/³⁹Ar dating, identical to the Late Jurassic to Early Cretaceous. The volcanic rock types are medium to acid rocks of the Calc-Alkaline to high-K Calc-Alkaline. The geochemical characteristics is the same as crustal rocks'. This indicates that it derived from the partial melting of the crustal material. The volcanics from Wulangai basin should be result from the collision of Mongol-Okhotsk(Paleo-Pacific) orogenic belt and the thickened lower crust in Early Cretaceous around 151.8 Ma. Combined with the background of the magma dynamics and the nature of the magma, the volcanics were from the partial melting of the thickened orogenic belt.

Key words: Wulangai basin, Mesozoic, volcanic rocks, Laser ⁴⁰Ar/³⁹Ar dating, geochemical

中图分类号:

孙守亮, 李永飞, 郜晓勇. 内蒙古乌兰盖盆地中生代火山岩年代学、地球化学特征及其地质意义[J]. 吉林大学学报(地球科学版), 2015, 45(2): 441-452.

Sun Shouliang, Li Yongfei, Gao Xiaoyong. Mesozoic Volcanic Rocks Geochronology and Geochemical Characteristics in Wulangai Basin of Inner Mongolia and Their Geological Significance[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(2): 441-452.

参考文献

[1] 丁秋红, 李永飞, 张健, 等.内蒙古乌兰盖盆地早白垩世孢粉组合[J].微体古生物学报, 2010, 27(2):159-172. Ding Qiuhong, Li Yongfei, Zhang Jian, et al. Early Cretaceous Palynological Assemblages form the Wulangai Basin, Inner Mongolia[J]. Acta Micropalaeontologica Sinica, 2010, 27 (2):159-172.

[2] 袁永真, 孟小红, 钟清, 等.非地震方法在内蒙古地区乌兰盖盆地的应用[J].物探与化探, 2012, 36(1):13-18. Yuan Yongzhen, Mong Xiaohong, Zhong Qing, et al. Application of Non-Seismic Geophysical Methods to Ulgoin Basin in Inner Mongolia[J].Geophysical and Eochemical Exploration, 2012, 36(1):13-18.

[3] 赵忠华, 孙德有, 苟军, 等.满洲里南部塔木兰沟组火山岩年代学与地球化学[J]. 吉林大学学报:地球科学版, 2011, 41(6):1865-1880. Zhao Zhonghua, Sun Deyou, Gou Jun, et al.Chronology and Geochemistry of Volocanic Rocks in Tamulangou Formation from Southern Mandchuria, Inner Mongolia[J].Journal of Jinlin University:Earth Science Edition, 2011, 41(6):1865-1880.

[4] 孟恩, 许文良, 杨德彬, 等.满洲里地区灵泉盆地中生代火山岩的锆石U-Pb年代学、地球化学及其地质意义[J]. 岩石学报, 2011, 27(4):1209-1226. Meng En, Xu Wenliang, Yang Debin, et al.Zircon U-Pb Chronology, Geochemistry of Mesonzoic Volcanic Rocks from the Lingquan Basin in Manzhouli Area, and Its Tectonic Implications[J]. Acta Petrologica Sinica, 2011, 27(4):1209-1226.

[5] Zhang Jiheng, Gao Shan, Ge Wenchun, et al. Geo-chronology of the Mesozoic Volcanic Rocks in the Great Xing'an Range, Northeastern China: Implications for Subduction-Induced Delamination[J]. Chemical Geology, 2010, 276:144-165.

[6] 周新华, 英基丰, 张连昌, 等.大兴安岭晚中生代火山岩成因与古老地块物质贡献:锆石U-Pb年龄及多元同位素制约[J].地球科学:中国地质大学学报, 2009, 34(1):1-10. Zhou Xinhua, Ying Jifeng, Zhang Lianchang, et al. The Petrogenesis of Late Mesozoic Volcanic Rock and the Contributions from Ancient Micro-Continents:Constrains from the Zircon U-Pb Dating and Sr-Nd-Pb-Hf isotopic Systematics[J]. Earth Science: Journal of China University of Geosciences, 2009, 34(1):1-10.

[7] 张吉衡.大兴安岭地区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, 2009. Zhang Jiheng.Geochronology and Geochemistry of the Mesozoic Volcanic Rocks in the Great Xing an Range, Northeastern China[D]. Wuhan: China University of Geosciences, 2009.

[8] Zhang J H, Ge W C, Wu F Y, et al. Large-Scale Early Cretaceous Volcanic Events in the Northern Great Xing'an Range, Northeastern China[J]. Lithos, 2008, 102:138-157.

[9] 吴华英, 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. Wu Huaying, Zhang Lianchang, Zhou Xinhua, et al. Geochronology and Geochemical Characteristics of Late Mesozoic and Esites in the Central Da-Hinggan Mountains, and Its Genesis[J].Acta Petrologica Sinica, 2008, 24(6): 1339-1352.

[10] Wang F, Zhou X H, Zhang L C, et al.Late Mesozoic Volcanism in the Great Xing'an Range, NE China: Time and Implications for the Dynamic Setting of NE Asia[J]. Earth and Planetary Science Letters, 2006, 251:179-198.

[11] Zhang J H, Ge W C, Wu F Y, et al. Mesozoic Bimodal Volcanic Suite in Zhalantun of the Da Hinggan Range and Its Geological Significance: Zircon U-Pb Age and Hf Isotopic Constraints[J]. Acta Geologica Sinica, 2006, 80: 801-812.

[12] 陈志广, 张连昌, 周新华, 等.满洲里新右旗火山岩剖面年代学和地球化学特征[J].岩石学报, 2006, 22(12):2971-2980. Chen Zhiguang, Zhang Lianchang, Zhou Xinhua, et al. Geochronology and Geochemical Characteristics of Volcanic Rocks Section in Manzhouli Xinyouqi, Inner-Mongolia[J].Acta Petrologica Sinica, 2006, 22(12):2971-2980.

[13] 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. Sun Deyou, Gou Jun, Ren Yunsheng, et al. Zircon U-Pb Dating and Study on Geochemistry of Volcanic Rocks in Manitu Formation from Southern Manchuria, Inner Mongolia[J].Acta Petrologica Sinica, 2011, 27(10): 3083-3094.

[14] 吴刚. 二连盆地侏罗纪白垩纪原型盆地恢复[D]. 青岛:中国石油大学, 2009. Wu Gang. Reconstruction of the Jurassic-Cretaceous Prototype Basin of Erlian Basin[D].Qingdao:China University of Petroleum, 2009.

[15] 赵澄林, 祝玉衡.二连盆地储层沉积学[M].北京:石油工业出版社, 1996. Zhao Chenglin, Zhu Yuheng. The Reservoir Sedi-mentology of ErLian Basin[M].Beijing:Petroleum Industry Press, 1996.

[16] 杜金虎.二连盆地隐蔽油气藏勘探[M].北京:石油工业出版社, 2003. Du Jinhu.The Exploration of Subtle Reservoir of Erlian Basin[M].Beijing:Petroleum Industry Press, 2003.

[17] 李永飞, 卞雄飞, 郜晓勇, 等. 大兴安岭北段龙江盆地中生代火山岩激光全熔⁴⁰Ar/³⁹Ar测年[J].地质通报, 2013, 32(8):1212-1223. Li Yongfei, Bian Xiongfei, Gao Xiaoyong, et al. Laser ⁴⁰Ar/³⁹Ar Chronology of the Mesozoic Volcanic Rocks from the Longjiang Basin in the Northern Great Xing'an Range[J].Geological Bulletin of China, 2013, 32(8): 1212-1223.

[18] Verma S P, Torres-Alvarado I S, Sotelo-Rodríguez Z T. SINCLAS: Standard Igneous Norm and Volcanic Rock Classification System[J]. Computers & Geosciences, 2002, 28:711-715.

[19] Le Bas M J, Le Maitre R W, Streckeisen A, et al. A Chemical Classification of Volcanic Rocks on the Total Alkali-Silica Diagram[J]. Journal of Petrology, 1986, 27(3):745-750.

[20] Le Bas M J. Nephelinitic and Basanitic Rocks[J]. Journal of Petrology, 1989, 30 (5):1299-1312.

[21] Le Bas M J. IUGS Reclassification of the High-Mg and Picritic Volcanic Rocks[J]. Journal of Petrology, 2000, 41(10):1467-1470.

[22] Le Maitre R W, Bateman P, Dudek A, et al. A Classification of Igneous Rocks and Glossary of Terms[M]. Blackwell:Oxford, 1989:193.

[23] Rudnick R L, Gao S. Composition of the Continental Crust[C]//Holland H D, Turekian K K. The Crust 3:Treatise on Geochemistry. Oxford: Elsevier-Pergamon, 2003:1-64.

[24] Sun S S, McDonough W F. Chemical and Isotopic Systematics of Oceanic Basalts: Implications for Mantle Composition and Processes[C]//Saunders A D, Norry M J. Magmatism in Ocean Basins. London: Geol Soc Spec Publ, 1989:313-345.

[25] 张旗, 金惟俊, 李承东, 等.再论花岗岩按照Sr-Yb分类:标志[J].岩石学报, 2010, 26(4): 985-1015. Zhang Qi, Jin Weijun, Li Chengdong, et al. Revisiting the New Classification of Granitic Rocks Based on Whole-Rock Sr and Yb Contents: Index[J].Acta Petrologica Sinica, 2010, 26(4): 985-1015.

[26] 李永飞, 郜晓勇, 孙守亮.大兴安岭中段突泉盆地高Mg^#火山岩的激光全熔⁴⁰Ar/³⁹Ar测年与地球化学特征[J].地质与资源, 2013, 22(4):264-272. Li Yongfei, Gao Xiaoyong, Sun Shouliang.Laser ⁴⁰Ar/³⁹Ar Dating for the High-Mg^# Volcanic Rocks from the Tuquan Basin in Central Great Xing'an Mountain and Their Geochemical Characteristics[J]. Geology and Resources, 2013, 22(4):264-272.

[27] Zorin Y A.Geodynamics of the Western Part of the Mongolia-Okhotsk Collisional Belt, Trans-Baikal Region (Russia) and Mongolia[J]. Tectonophysics, 1999, 306: 33-56.

[28] Metelkin D V, Vernikovsky V A, Kazansky A Y, et al.Late Mesozoic Tectonics of Central Asia Based on Paleomagnetic Evidence[J].Gondwana Research, 2010, 18(2/3):400-419.

[29] 张旗, 金惟俊, 王元龙, 等.晚中生代中国东部高原北界探讨[J].岩石学报, 2007, 23(4):689-700. Zhang Qi, Jin Weijun, Wang Yuanlong, et al.Discussion of North Boundary of the East China Plateau During Late Mesozoic Era[J].Acta Petrologica Sinica, 2007, 23(4):689-700.

相关文章 15

[1]	张强, 丁清峰, 宋凯, 程龙. 东昆仑洪水河铁矿区狼牙山组千枚岩碎屑锆石U-Pb年龄、Hf同位素及其地质意义[J]. 吉林大学学报(地球科学版), 2018, 48(4): 1085-1104.
[2]	宋明春, 李杰, 李世勇, 丁正江, 谭现锋, 张照录, 王世进. 鲁东晚中生代热隆-伸展构造及其动力学背景[J]. 吉林大学学报(地球科学版), 2018, 48(4): 941-964.
[3]	郭春涛, 李如一, 陈树民. 塔里木盆地古城地区鹰山组白云岩稀土元素地球化学特征及成因[J]. 吉林大学学报(地球科学版), 2018, 48(4): 1121-1134.
[4]	崔亚川, 于介江, 杨万志, 张元厚, 崔策, 于介禄. 东天山觉罗塔格带黄山地区角闪辉长岩岩体的年代学、地球化学特征及岩石成因[J]. 吉林大学学报(地球科学版), 2018, 48(4): 1105-1120.
[5]	赵希林, 姜杨, 邢光福, 于胜尧, 彭银彪, 黄文成, 王存智, 靳国栋. 陈蔡早古生代俯冲增生杂岩对华夏与扬子地块拼合过程的指示意义[J]. 吉林大学学报(地球科学版), 2018, 48(4): 1135-1153.
[6]	王朝阳, 孟恩, 李壮, 李艳广, 靳梦琪. 吉东南新太古代晚期片麻岩类的时代、成因及其对早期地壳形成演化的制约[J]. 吉林大学学报(地球科学版), 2018, 48(3): 587-625.
[7]	高飞, 刘永江, 温泉波, 李伟民, 冯志强, 范文亮, 汤超. 内蒙古突泉—科尔沁右翼中旗地区中生代花岗岩锆石U-Pb年龄及其地质意义[J]. 吉林大学学报(地球科学版), 2018, 48(3): 769-783.
[8]	舒晴, 朱晓颖, 高维, 李瑞, 尹航. 三塘湖盆地航磁异常特征及油气远景预测[J]. 吉林大学学报(地球科学版), 2018, 48(2): 451-460.
[9]	尹业长, 郝立波, 赵玉岩, 石厚礼, 田午, 张豫华, 陆继龙. 冀东高家店和蛇盘兔花岗岩体:年代学、地球化学及地质意义[J]. 吉林大学学报(地球科学版), 2018, 48(2): 574-586.
[10]	齐天骄, 薛春纪, 许碧霞. 新疆昭苏布合塔铜(金)矿化区花岗质岩石锆石U-Pb年龄、地球化学特征及其成因[J]. 吉林大学学报(地球科学版), 2018, 48(1): 132-144.
[11]	孙凡婷, 刘晨, 邱殿明, 鲁倩, 贺云鹏, 张铭杰. 大兴安岭东坡小奎勒河中基性侵入岩成因及地球动力学意义:锆石U-Pb年代学、元素和Hf同位素地球化学证据[J]. 吉林大学学报(地球科学版), 2018, 48(1): 145-164.
[12]	刘宗利, 王祝文, 刘菁华, 赵淑琴, 欧伟明. 辽河东部凹陷火山岩相测井响应特征及储集意义[J]. 吉林大学学报(地球科学版), 2018, 48(1): 285-297.
[13]	潘保芝, 刘文斌, 张丽华, 郭宇航, 阿茹罕. 一种提高储层裂缝识别准确度的方法[J]. 吉林大学学报(地球科学版), 2018, 48(1): 298-306.
[14]	孟恩, 王朝阳, 刘超辉, 施建荣, 李艳广. 辽东半岛东南部南辽河群变质火山岩的时代、成因及其对区域构造演化的制约[J]. 吉林大学学报(地球科学版), 2017, 47(6): 1589-1619.
[15]	张超, 崔芳华, 张照录, 耿瑞, 宋明春. 鲁西金岭地区含矿闪长岩体成因:来自锆石U-Pb年代学和地球化学证据[J]. 吉林大学学报(地球科学版), 2017, 47(6): 1732-1745.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed