全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

哀牢山构造带新安寨晚二叠世末期过铝质花岗岩锆石U-Pb年代学及Hf同位素组成研究

, PP. 87-98

Keywords: 红河-哀牢山构造带,同碰撞花岗岩,新安寨花岗岩体,锆石U-Pb年代学,Hf同位素

Full-Text   Cite this paper   Add to My Lib

Abstract:

对采自云南元阳新安寨花岗岩体东、西两侧的高钾过铝质黑云母二长花岗岩中的锆石进行了LA-ICP-MSU-Pb年龄测试,分别得到了251.9±1.4Ma和251.2±1.4Ma的206Pb/238U加权平均年龄,说明新安寨花岗岩并非原先认为的形成于燕山期或者晚三叠世,而是晚二叠世-早三叠世的产物。样品的锆石εHf(t)分别介于-9.8~-6.2和-11.1~-3.1间,平均为-7.6和-6.9,其二阶段模式年龄tDM2分别为1.67~1.90Ga和1.47~2.00Ga,平均为1.76Ga和1.72Ga,推测源岩可能是元古宙哀牢山群变质杂砂岩。结合前人研究成果,认为新安寨花岗岩体形成于岛弧向陆陆碰撞转换或者同碰撞的构造环境,指示了哀牢山带的古特提斯支洋盆或弧后盆地在二叠纪和三叠纪之交(251.6Ma)可能已经基本闭合。

References

[1]  董云鹏, 朱炳泉, 常向阳, 邓尚贤. 2000. 哀牢山缝合带中两类火山岩地球化学特征及其构造意义. 地球化学, 29(1): 6-13.
[2]  范蔚茗, 彭头平, 王岳军. 2009. 滇西古特提斯俯冲-碰撞过程的岩浆作用记录. 地学前缘, 16(6): 291-302.
[3]  方维萱, 胡瑞忠, 谢桂青, 苏文超. 2002. 云南哀牢山地区构造岩石地层单元及其构造演化. 大地构造与成矿学, 26(1): 28-36.
[4]  简平, 汪啸风, 何龙清, 王传尚. 1998a. 中国西南哀牢山蛇绿岩同位素地质年代学及大地构造意义. 华南地质与矿产, 1(1): 1-11.
[5]  简平, 汪啸风, 何龙清, 王传尚. 1998b. 云南新平县双沟蛇绿岩U?Pb年代学初步研究. 岩石学报, 14(2): 207-211.
[6]  李宝龙, 季建清, 付孝悦, 龚俊峰, 宋彪, 庆建春, 张臣. 2008. 滇西点苍山-哀牢山变质岩系锆石SHRIMP定年及其地质意义. 岩石学报, 24(10): 2322-2330.
[7]  凌其聪, 程惠兰, 沈上越, 魏启荣. 1999. 云南哀牢山蛇绿岩的矿物学研究. 矿物学报, 19(1): 56-62.
[8]  刘翠, 邓晋福, 刘俊来, 石耀霖. 2011. 哀牢山构造岩浆带晚二叠世-早三叠世火山岩特征及其构造环境. 岩石学报, 27(12): 3590-3602.
[9]  刘俊来, 唐渊, 宋志杰, Dung T M, 翟云峰, 吴文彬, 陈文. 2011. 滇西哀牢山构造带:结构与演化. 吉林大学学报(地球科学版), 41(5): 1285-1303.
[10]  莫宣学, 邓晋福, 董方浏, 喻学惠, 王勇, 周肃, 杨伟光. 2001. 西南三江造山带火山岩-构造组合及其意义. 高校地质学报, 7(2): 121-138.
[11]  彭头平, 王岳军, 范蔚茗, 刘敦一, 石玉若, 苗来成. 2006. 澜沧江南段早中生代酸性火成岩SHRIMP锆石U?Pb定年及构造意义. 中国科学(D辑), 36(2): 123-132.
[12]  沙绍礼, 包俊跃, 金亚昌, 邓志祥. 1999. 点苍山变质带同位素年代学研究新进展. 云南地质, 18(1): 63-36.
[13]  沈上越, 魏启荣, 程惠兰, 莫宣学. 1998. “三江”哀牢山-李仙江带火山岩构造岩浆类型. 矿物岩石, 18(2): 18-24.
[14]  邹日, 朱炳泉, 孙大中, 常向阳. 1997. 红河成矿带壳幔演化与成矿作用的年代学研究. 地球化学, 26(2): 46-56.
[15]  Altherr R, Holl A, Hegner E, Langer C and Kreuzer H. 2000. High?potassium, calc?alkaline I?type plutonism in the European Variscides: Northern Vosges (France) and northern Schwarzwald(Germany). Lithos, 50(1-3): 51-73.
[16]  Jian P, Liu D Y, Kroner A, Zhang Q, Wang Y Z, Sun X M and Zhang W. 2009a. Devonian to Permian plate tectonic cycle of the Paleo?Tethys Orogen in southwest China(I): Geochemistry of ophiolites, arc/back?arc assemblages and within?plate igneous rocks. Lithos, 113(3-4): 748-766.
[17]  Jian P, Liu D Y, Kroner A, Zhang Q, Wang Y Z, Sun X M and Zhang W. 2009b. Devonian to Permian plate tectonic cycle of the Paleo?Tethys Orogen in southwest China(II): Insights from zircon ages of ophiolites, arc/back?arc assemblages and within?plate igneous rocks and generation of the Emeishan CFB province. Lithos, 113(3-4): 767-784.
[18]  Lepvrier C, Maluski H, Van Tich V, Leyreloup A, Thi P T and Van Vuong N. 2004. The Early Triassic Indosinian orogeny in Vietnam(Truong Son Belt and Kontum Massif): Implications for the geodynamic evolution of Indochina. Tectonophysics, 393(1-4): 87-118.
[19]  Metcalfe I. 2002. Permian tectonic framework and palaeogeography of SE Asia. Journal of Asian Earth Sciences, 20: 551-566.
[20]  Metcalfe I. 2006. Paleozoic and Mesozoic tectonic evolution and palaeogeography of East Asian crustal fragments: The Korean Peninsula in context. Gondwana Research, 9(1-2): 24-46.
[21]  Nagy E A, Maluski H, Lepvrier C, Scharer U, Thi P T, Leyreloup A and Thich V V. 2001. Geodynamic significance of the Kontum massif in central Vietnam: Composite(40)Ar/(39)Ar and U?Pb ages from Paleozoic to Triassic. Journal of Geology, 109(6): 755-770.
[22]  Peng T P, Wang Y J, Zhao G C, Fan W M and Peng B X. 2008. Arc?like volcanic rocks from the southern Lancangjiang zone, SW China: Geochronological and geochemical constraints on their petrogenesis and tectonic implications. Lithos, 102(1-2): 358-373.
[23]  Roger F, Maluski H, Lepvrier C, Van T V and Paquette J L. 2012. LA?ICPMS zircons U/Pb dating of Permo? Triassic and Cretaceous magmatisms in Northern Vietnam?Geodynamical implications. Journal of Asian Earth Sciences, 48: 72-82.
[24]  Scherer E, Munker C and Mezger K. 2001. Calibration of the lutetium?hafnium clock. Washington D C: American Association for the Advancement of Science, 293(5530): 683-687.
[25]  Sylvester P J. 1998. Post?collisional strongly peraluminous granites. Lithos, 45(1-4): 29-44.
[26]  Thompson A B and Connolly J A D. 1995. Melting of the continental?crust?some thermal and petrological constraints on anatexis in continental collision zones and other tectonic settings. Journal of Geophysical Research ? Solid Earth, 100: 15565-15579.
[27]  Vervoort J D and Blichert T J. 1999. Evolution of the depleted mantle: Hf isotope evidence from juvenile rocks through time. Geochimica et Cosmochimica Acta, 63(3-4): 533-556.
[28]  Wang C Y, Zhou M F and Keays R R. 2006. Geochemical constraints on the origin of the Permian Baimazhai mafic?ultramafic intrusion, SW China. Contributions to Mineralogy and Petrology, 152(3): 309-321.
[29]  Wang C Y, Zhou M F and Qi L. 2007. Permian flood basalts and mafic intrusions in the Jinping(SW China) Song Da(northern Vietnam) district: Mantle sources, crustal contamination and sulfide segregation. Chemical Geology, 243(3-4): 317-343.
[30]  Wang X D, Shi G R and Sugiyama T. 2002. Permian of West Yunnan, Southwest China: A biostratigraphic synthesis. Journal of Asian Earth Sciences, 20(6): 647-656.
[31]  Wang Y J, Zhang A M, Fan W M, Peng T P, Zhang F F, Zhang Y H and Bi X W. 2010. Petrogenesis of late Triassic post?collisional basaltic rocks of the Lancangjiang tectonic zone, southwest China, and tectonic implications for the evolution of the eastern Paleotethys Geochronological and geochemical constraints. Lithos, 120(3-4): 529-546.
[32]  Watson E B and Harrison T M. 2005. Zircon thermometer reveals minimum melting conditions on earliest Earth. Science, 308(5723): 841-844.
[33]  从柏林, 吴根耀, 张旗, 张儒媛, 翟明国, 赵大升, 张雯华. 1993. 中国滇西古特提斯构造带岩石大地构造演化. 中国科学(D辑), 23(11): 1201-1207.
[34]  魏启荣, 沈上越. 1995. 哀牢山北段老王寨-浪泥塘一带蛇绿岩的形成环境. 特提斯地质, 19: 56-70.
[35]  魏启荣, 沈上越. 1997. “三江”地区哀牢山西侧三类弧火山岩特征. 地质科技情报, 16(2): 13-18.
[36]  吴福元, 李献华, 杨进辉, 郑永飞. 2007a. 花岗岩成因研究的若干问题. 岩石学报, 23(6): 1217-1238.
[37]  吴福元, 李献华, 郑永飞, 高山. 2007b. Lu?Hf同位素体系及其岩石学应用. 岩石学报, 23(2): 185-220.
[38]  谢烈文, 张艳斌, 张辉煌, 孙金凤, 吴福元. 2008. 锆石/斜锆石U?Pb和Lu?Hf同位素以及微量元素成分的同时原位测定. 科学通报, 53(2): 220-228.
[39]  云南省地矿局. 1990. 云南省区域地质志. 北京:地质出版社: 400-450.
[40]  张旗, 潘国强, 李承东, 金惟俊, 贾秀勤. 2007. 花岗岩构造环境问题:关于花岗岩研究的思考之三. 岩石学报, 23(11): 2683-2698.
[41]  张旗, 周德进, 赵大升, 彭兴阶, 罗万林, 刘祥品. 1996. 滇西古特提斯造山带的威尔逊旋回:岩浆活动记录和深部过程讨论. 岩石学报, 12(1): 17-29.
[42]  张玉泉, 夏斌, 梁华英, 刘红英, 林清茶. 2004. 云南大平糜棱岩化碱性花岗岩的锆石特征及其地质意义. 高校地质学报, 10(3): 378-384.
[43]  钟大赉. 1998. 滇川西部古特提斯造山带. 北京:科学出版社: 1-231.
[44]  朱炳泉, 常向阳, 邱华宁, 王江海, 邓尚贤. 2001. 云南前寒武纪基底形成与变质时代及其成矿作用年代学研究. 前寒武纪研究进展, 24(2): 75-82.
[45]  Amelin Y, Lee D C, Halliday A N and Pidgeon R T. 1999. Nature of the Earth′s earliest crust from hafnium isotopes in single detrital zircons. Nature, 399(6733): 252-255.
[46]  Andersen T. 2002. Correction of common lead in U?Pb analyses that do not report Pb?204. Chemical Geology, 192(1-2): 59-79.
[47]  Balykin P A, Polyakov G V, Izokh A E, Tran T H, Ngo T P, Tran Q H and Petrova T E. 2010. Geochemistry and petrogenesis of Permian ultramafic?mafic complexes of the Jinping?Song Da rift(southeastern Asia). Russian Geology and Geophysics, 51(6): 611-624.
[48]  Blichert T J, Chauvel C and Albarede F. 1997. Separation of Hf and Lu for high?precision isotope analysis of rock samples by magnetic sector multiple collector ICP?MS. Contributions to Mineralogy and Petrology, 127(3): 248-260.
[49]  Chu N C, Taylor R N, Chavagnac V, Nesbitt R W, Boella R M, Milton J A, German C R, Bayon G and Burton K. 2002. Hf isotope ratio analysis using multi?collector inductively coupled plasma mass spectrometry: An evaluation of isobaric interference corrections. Journal of Analytical Atomic Spectrometry, 17(12): 1567-1574.
[50]  Debievre P and Taylor P D P. 1993. Table of the isotopic compositions of the elements. International Journal of Mass Spectrometry and Ion Processes, 123(2): 149-166.
[51]  Douce A E P and Johnston A D. 1991. Phase?equilibria and melt productivity in the pelitic system-Implications for the origin of peraluminous granitoids and aluminous granulites. Contributions to Mineralogy and Petrology, 107(2): 202-218.
[52]  Fan W M, Wang Y J, Zhang A M, Zhang F F and Zhang Y Z. 2010. Permian arc?back?arc basin development along the Ailaoshan tectonic zone: Geochemical, isotopic and geochronological evidence from the Mojiang volcanic rocks, Southwest China. Lithos, 119(3-4): 553-568.
[53]  Griffin W L, Wang X, Jackson S E, Pearson N J, O′reilly S Y, Xu X S and Zhou X M. 2002. Zircon chemistry and magma mixing, SE China: In?situ analysis of Hf isotopes, Tonglu and Pingtan igneous complexes. Lithos, 61(3-4): 237-269.
[54]  Jackson S E, Pearson N J, Griffin W L and Belousova E A. 2004. The application of laser ablation?inductively coupled plasma?mass spectrometry to in situ U?Pb zircon geochronology. Chemical Geology, 211(1-2): 47-69.
[55]  Li G, Li C, Ripley M E, Kamo S and Su S. 2012. Geochronology, petrology and geochemistry of the Nanlinshan and Banpo mafic?ultramafic intrusions: Implications for subduction initiation in the eastern Paleo?Tethys. Contributions to Mineralogy and Petrology, in press.
[56]  Ludwig K R. 2001. Sqiud 1.02: A user manual. Berkeley: Berkeley Geochronological Center Special publication: 1-219.
[57]  Winkler H G F. 1976. Petrogenesis of Metamorphic Rocks(4th Edition). New York: Springer?Verlag: 1-344.
[58]  Yang J H, Wu F Y, Wilde S A, Belousova E and Griffin W L. 2008. Mesozoic decratonization of the North China block. Geology, 36(6): 467-470.
[59]  Yuan H L, Gao S, Liu X M, Li H M, Gunther D and Wu F Y. 2004. Accurate U?Pb age and trace element determinations of zircon by laser ablation?inductively coupled plasma?mass spectrometry. Geostandards and Geoanalytical Research, 28(3): 353-370.
[60]  Yumul G P, Zhou M F, Wang C Y, Zhao T P and Dimalanta C B. 2008. Geology and geochemistry of the Shuanggou ophiolite(Ailao Shan ophiolitic belt), Yunnan Province, SW China: Evidence for a slow?spreading oceanic basin origin. Journal of Asian Earth Sciences, 32(5-6): 385-395.
[61]  Zi J W, Cawood P A, Fan W M, Tohver E, Wang Y J and Mccuaig T C. 2012. Generation of Early Indosinian enriched mantle?derived granitoid pluton in the Sanjiang Orogen(SW China) in response to closure of the Paleo?Tethys. Lithos, 140: 166-182.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133