Zircon U-Pb Dating of Early Paleozoic Adakites from Nantinghe Ophiolitic Mélange in Changning-Menglian Suture Zone and Its Geological Implications
-
摘要: 前人在昌宁-孟连缝合带获得了大量的晚古生代岩浆活动与沉积地层的记录，但是早古生代的相关记录十分稀少，大大限制了对昌宁-孟连缝合带早古生代演化过程的理解.对南汀河地区早古生代英云闪长岩的锆石U-Pb年龄、全岩地球化学特征开展研究，并探讨其岩石成因，揭示早古生代(原)特提斯演化过程.通过LA-ICPMS锆石U-Pb定年，获得英云闪长岩206Pb/238U加权平均年龄为454.1±2.7 Ma、443.2±2.4 Ma，代表岩浆结晶时代.地球化学分析显示，南汀河英云闪长岩SiO2含量为63.41%~68.57%，K2O含量为1.31%~2.17%，同时具有富Na(Na2O=4.11%~5.07%)贫Mg(MgO=0.98%~1.39%)的特点.REE配分曲线呈现出轻稀土富集、重稀土亏损的特征，大离子亲石元素Sr、Ba等富集，高场强元素Nb、Ta、Ti亏损，与岛弧岩浆的特征相吻合；指示岩浆来源于俯冲板片的部分熔融，在岩浆上升过程中受到了俯冲沉积物的混染，形成于与原特提斯洋俯冲有关的弧火山岩环境，进一步指示早古生代原特提斯洋在454~443 Ma就已经发生了俯冲消减作用.南汀河蛇绿岩与羌塘地区龙木错-双湖缝合带桃形湖等蛇绿岩形成时代一致、地球化学性质相似，由此认为昌宁-孟连缝合带与龙木错-双湖缝合带一起代表了一个统一的古特提斯洋壳的残余.Abstract: A large number of records of magmatic activities and sedimentary strata in the Late Paleozoic have been obtained in the Changning-Menglian suture zone,but the records of Early Paleozoic are very rare,which greatly limits understanding of the Early Paleozoic evolution process in this area. In this paper,the zircon U-Pb age and geochemical characteristics of the Early Paleozoic tonalite are reported in the Nantinghe area,and its petrogenesis is discussed to reveal the evolution process of the Early Paleozoic Tethys. LA-ICPMS zircon U-Pb dating shows that the weighted mean 206Pb/238U ages are 454.1±2.7 Ma and 443.2±2.4 Ma for tonalite,representing the crystallization age of magmatic rocks. Geochemical analyses of the tonalite show that its SiO2 content is 63.41%-68.57% and the K2O content is 1.31%-2.17%,and it is rich in Na (Na2O=4.11%-5.07%) and poor in Mg (MgO=0.98%-1.39%). The REE distribution curve shows the enrichment of LREE and the depletion of HREE,large ion lithophile elements Sr,Ba enrichment,high field strength elements Nb,Ta,Ti depletion,which is consistent with the characteristics of island arc magma,indicating that they were derived from the partial melting of subduction oceanic slab and was contaminated by subduction sediments in the magma rising process,and formed in the arc volcanic environment related to the subduction of the original Tethys ocean,further indicating that the subduction of the proto-Tethys Ocean occurred in 454-443 Ma. The chronology and geochemsitry characteristics of the Nantinghe ophiolite in Changning-Menglian suture zone can be well correlated with the Taoxing Lake ophiolite in the Longmuco-Shuanghu suture zone of Qiangtang area. Thus,it is suggested that both the Changning-Menglian and Longmuco-Shuanghu sutures probably represent the original of a unified paleo-Tethys oceanic crust.
-
Key words:
- adakite /
- Early Paleozoic /
- Changning-Menglian suture zone /
- Longmuco-Shuanghu suture zone /
- Tethyan /
- geochemistry /
- geochronology
-
图 1 青藏高原构造格架简图(a)、西南三江南段构造简图(b)和昌宁-孟连缝合带南汀河蛇绿混杂岩带地质图(c)
图a、b据王保弟等(2018)修改；图c据云南省地质调查院, 2017, 中华人民共和国1:5万香竹林、勐勇、勐撒、懂过、耿马县、安雅、勐库7幅区域地质调查报告.图a：KL.阿尼玛卿-昆仑结合带；GL.甘孜-理塘结合带；JS.金沙江结合带；AL.哀牢山结合带；NL.北澜沧江结合带；SL.南澜沧江结合带；LS.龙木错-双湖结合带；CM.昌宁-孟连结合带；BN.班公湖-怒江结合带；YL.印度-雅鲁藏布江结合带.图b：II1.中咱-中甸地块；II2.哀牢山结合带；II3.江达-德钦-维西-绿春陆缘岩浆弧；II4.昌都-思茅地块；II5.景谷岩浆弧；II6.南澜沧江结合带；II7.临沧岩浆弧；II8.昌宁-孟连结合带；II9.保山地块；II10.璐西-三台山结合带；II11.腾冲岩浆弧；II12.拉萨-察隅岩浆弧
Fig. 1. Tectonic framework of the Tibetan Plateau (a), tectonic sketch map of the southern segment of Sanjiang tectonic belt (b) and the geological map of the Nantinghe ophiolitic mélanges zone in the Changning-Menglian suture zone (c)
图 2 昌宁-孟连缝合带南汀河英云闪长岩野外露头
Fig. 2. Field outcrop of the Nantinghe tonalite in the Changning-Menglian suture zone
图 3 南汀河蛇绿混杂岩带英云闪长岩锆石阴极发光图像与U-Pb同位素分析点位
Fig. 3. Cathodoluminescence image of zircon with U-Pb analyzed spots from tonalite in the Nantinghe ophiolitic mélange zone
图 4 南汀河蛇绿混杂岩带英云闪长岩锆石U-Pb年龄谐和图
Fig. 4. U-Pb concordia diagram of zircons from the tonalite in the Nantinghe ophiolitic mélange zone
图 5 南汀河蛇绿混杂岩带英云闪长岩岩浆/火成岩系统TAS分类图解
底图据Middlemost (1994)；牛井山英云闪长岩王冬兵等(2016)
Fig. 5. Total alkali silica (TAS) classification diagram of magma/igneous rock system of tonalite in the Nantinghe ophiolitic mélange zone
图 6 南汀河蛇绿混杂岩带英云闪长岩球粒陨石标准化稀土元素配分模式(a)和原始地幔标准化微量元素蛛网图(b)
标准化值据Sun and McDonough(1989)；牛井山英云闪长岩王冬兵等(2016)
Fig. 6. Chondrite-normalized REE pattern (a) and primitive mantle-normalized spider diagram (b) of tonalite in the Nantinghe ophiolitic mélange zone
图 7 南汀河蛇绿混杂岩带英云闪长岩Sr/Y-Y图解
底图据Defant and Drummond(1990)；牛井山英云闪长岩王冬兵等(2016)
Fig. 7. Sr/Y vs. Y diagram for tonalite in the Nantinghe ophiolitic mélange zone
图 8 南汀河英云闪长岩Mg#-SiO2判别图解
底图据Jiang et al.(2014)；牛井山英云闪长岩王冬兵等(2016)
Fig. 8. Mg# vs. SiO2 diagram for tonalite in the Nantinghe ophiolitic mélange zone
图 9 南汀河英云闪长岩Rb-(Y+Nb)(a)和Nb-Y(b)判别图解
底图据Pearce et al.(1984)；牛井山英云闪长岩王冬兵等(2016)
Fig. 9. Rb vs. (Y+Nb) (a) and Nb vs. Y (b) diagrams for tonalite in the Nantinghe ophiolitic mélanges zone
-
Castillo, P. R., Janney, P. E., Solidum, R. U., 1999. Petrology and Geochemistry of Camiguin Island, Southern Philippines:Insights to the Source of Adakites and Other Lavas in a Complex Arc Setting. Contributions to Mineralogy and Petrology, 134(1):33-51. https://doi.org/10.1007/s004100050467 Defant, M. J., Drummond, M. S., 1990. Derivation of Some Modern Arc Magmas by Melting of Young Subducted Lithosphere. Nature, 347(6294):662-665. https://doi.org/10.1038/347662a0 Fang, N. Q., Liu, B. P., Feng, Q. L., et al., 1994. Late Palaeozoic and Triassic Deep-Water Deposits and Tectonic Evolution of the Palaeotethys in the Changning-Menglian and Lancangjiang Belts, Southwestern Yunnan. Journal of Southeast Asian Earth Sciences, 9(4):363-374. https://doi.org/10.1016/0743-9547(94)90048-5 Gao, S., Rudnick, R. L., Yuan, H. L., et al., 2004. Recycling Lower Continental Crust in the North China Craton. Nature, 432(7019):892-897. https://doi.org/10.1038/nature03162 Huang, F., Xu, J. F., Zeng, Y. C., et al., 2017. Slab Breakoff of the Neo-Tethys Ocean in the Lhasa Terrane Inferred from Contemporaneous Melting of the Mantle and Crust. Geochemistry, Geophysics, Geosystems, 18(11):4074-4095. https://doi.org/10.1002/2017gc007039 Jiang, Z. Q., Wang, Q., Wyman, D. A., et al., 2014. Transition from Oceanic to Continental Lithosphere Subduction in Southern Tibet:Evidence from the Late Cretaceous-Early Oligocene (~91-30 Ma) Intrusive Rocks in the Chanang-Zedong Area, Southern Gangdese. Lithos, 196-197:213-231. https://doi.org/10.1016/j.lithos.2014.03.001 Lehmann, B., Zhao, X. F., Zhou, M. F., et al., 2013. Mid-Silurian Back-Arc Spreading at the Northeastern Margin of Gondwana:The Dapingzhang Dacite-Hosted Massive Sulfide Deposit, Lancangjiang Zone, Southwestern Yunnan, China. Gondwana Research, 24(2):648-663. https://doi.org/10.1016/j.gr.2012.12.018 Li, C., Dong, Y.S., Zhai, Q.G., et al., 2008. Discovery of Eopaleozoic Ophiolite in the Qiangtang of Tibet Plateau:Evidence from SHRIMP U-Pb Dating and Its Tectonic Implications. Acta Petrologica Sinica, 24(1):31-36 (in Chinese with English abstract). Li, P.W., Gao, R., Cui, J.W., et al., 2005. Paleomagnetic Results from the Three Rivers Region, SW China:Implications for the Collisional and Accretionary History. Acta Geoscientica Sinica, 26(5):387-404 (in Chinese with English abstract). Li, W.C., Yin, G.H., Lu, Y.X., et al., 2010. Delineation of Hongshan-Shudu Ophiolite Mélange in Geza Volcanic-Magmatic Arc and Its Significance, Southwest "Jinsha-Lancang-Nu Rivers". Acta Petrologica Sinica, 26(6):1661-1671 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98201006003 Li, W.X., Li, X.H., 2003. Rock Types and Tectonic Significance of the Granitoids Rocks within Ophiolites. Advance in Earth Sciences, 18(3):392-397 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqkxjz200303011 Liu, G.C., Sun, Z.B., Zeng, W.T., et al., 2017. The Age of Wanhe Ophiolitic Mélange from Mengku Area, Shuangjiang County, Western Yunnnan Province, and Its Geological Significance. Acta Petrologica et Mineralogica, 36(2):163-174 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yskwxzz201702003 Liu, Y. S., Gao, S., Hu, Z. C., et al., 2010. Continental and Oceanic Crust Recycling-Induced Melt-Peridotite Interactions in the Trans-North China Orogen:U-Pb Dating, Hf Isotopes and Trace Elements in Zircons from Mantle Xenoliths. Journal of Petrology, 51(1-2):537-571. https://doi.org/10.1093/petrology/egp082 Liu, Y. S., Hu, Z. C., Gao, S., et al., 2008. In Situ Analysis of Major and Trace Elements of Anhydrous Minerals by LA-ICP-MS without Applying an Internal Standard. Chemical Geology, 257(1-2):34-43. https://doi.org/10.1016/j.chemgeo.2008.08.004 Ludwig, K.R., 2003. User's Manual for Isoplot 3.00: A Geochronological Toolkit for Microsoft Excel. Berkeley Geochronology Center, Berkeley. Macpherson, C. G., Dreher, S. T., Thirlwall, M. F., 2006. Adakites without Slab Melting:High Pressure Differentiation of Island Arc Magma, Mindanao, the Philippines. Earth and Planetary Science Letters, 243(3-4):581-593. https://doi.org/10.1016/j.epsl.2005.12.034 Mao, X.C., Wang, L.Q., Li, B., et al., 2012. Discovery of the Late Silurian Volcanic Rocks in the Dazhonghe Area Yunxian-Jinggu Volcanic Arc Belt, Western Yunnan, China and Its Geological Significance. Acta Petrologica Sinica, 28(5):1517-1528 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98201205014 Martin, H., Smithies, R. H., Rapp, R. P., et al., 2005. An Overview of Adakite, Tonalite-Trondhjemite-Granodiorite (TTG), and Sanukitoid:Relationships and Some Implications for Crustal Evolution. Lithos, 79(1):1-24. https://doi.org/10.1016/j.lithos.2004.04.048 Middlemost, E. A. K., 1994. Naming Materials in the Magma/Igneous Rock System. Earth-Science Reviews, 37(3-4):215-224. https://doi.org/10.1016/0012-8252(94)90029-9 Nie, X. M., Feng, Q. L., Qian, X., et al., 2015. Magmatic Record of Prototethyan Evolution in SW Yunnan, China:Geochemical, Zircon U-Pb Geochronological and Lu-Hf Isotopic Evidence from the Huimin Metavolcanic Rocks in the Southern Lancangjiang Zone. Gondwana Research, 28(2):757-768. https://doi.org/10.1016/j.gr.2014.05.011 Pan, G.T., Xiao, Q.H., Zhang, K.X., et al., 2019. Recognition of the Oceanic Subduction-Accretion Zones from the Orogenic Belt in Continents and Its Important Scientific Significance. Earth Science, 44(5):1544-1561 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqkx201905012 Pearce, J. A., Harris, N. B. W., Tindle, A. G., 1984. Trace Element Discrimination Diagrams for the Tectonic Interpretation of Granitic Rocks. Journal of Petrology, 25(4):956-983. https://doi.org/10.1093/petrology/25.4.956 Ren, F., Pan, G.T., Yin, F.G., et al., 2017. Oceanic Plate Stratigraphy and Tectonic Evolution of the Nujiang-Lancangjiang-Jinshajiang Area in Southwestern China. Sedimentary Geology and Tethyan Geology, 37(4):9-16 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yxgdl201704003 Ru, S.S., Li, F., Wu, J., et al., 2012. Geochemistry and Chronology of Granodiorite Porphyry in the Dapingzhang Cu Polymetallic Deposit. Acta Petrologica et Mineralogica, 31(4):531-540 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yskwxzz201204006 Streck, M. J., Leeman, W. P., Chesley, J. T., 2007. High-Magnesian Andesite from Mount Shasta:A Product of Magma Mixing and Contamination, not a Primitive Mantle Melt. Geology, 35(4):351-354. https://doi.org/10.1130/g23286a.1 Sun, S. S., McDonough, W. F., 1989. Chemical and Isotopic Systematics of Oceanic Basalts:Implications for Mantle Composition and Processes. Geological Society, London, Special Publications, 42(1):313-345. https://doi.org/10.1144/gsl.sp.1989.042.01.19 Wang, B.D., Wang, L.Q., Pan, G.T., et al., 2013. U-Pb Zircon Dating of Early Paleozoic Gabbro from the Nantinghe Ophiolite in the Changning-Menglian Suture Zone and Its Geological Implication. Chinese Science Bulletin, 58(4):344-354 (in Chinese). doi: 10.1360/csb2013-58-4-344 Wang, B.D., Wang, L.Q., Wang, D.B., et al., 2018. Tectonic Evolution of the Changning-Menglian Proto-Paleo Tethys Ocean in the Sanjiang Area, Southwestern China. Earth Science, 43(8):2527-2550 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqkx201808001 Wang, D.B., Luo, L., Tang, Y., et al., 2016. Zircon U-Pb Dating and Petrogenesis of Early Paleozoic Adakites from the Niujingshan Ophiolitic Mélange in the Changning-Menglian Suture Zone and Its Geological Implications. Acta Petrologica Sinica, 32(8):2317-2329 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98201608006 Wang, D.B., Luo, L., Tang, Y., et al., 2017. LA-ICP-MS Zircon U-Pb Age and Geochemical Signatures of the Amphibolites in the Changning-Menglian Suture Zone and Its Geological Implications. Sedimentary Geology and Tethyan Geology, 37(4):17-28 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yxgdl201704004 Wang, L.Q., Pan, G.T., Ding, J., et al., 2013. The Geological Map and Instruction of the Qinghai-Tibet Plateau and Its Adjacent Areas (1:1 500 000). Geological Publishing House, Beijing (in Chinese). Wang, L.Q., Pan, G.T., Li, C., et al., 2008. SHRIMP U-Pb Zircon Dating of Eopaleozoic Cumulate in Guoganjianian Mt.from Central Qiangtang Area of Northern Tibet-Considering the Evolvement of Proto- and Paleo-Tethys. Geological Bulletin of China, 27(12):2045-2056 (in Chinese with English abstract). Wang, Q., McDermott, F., Xu, J.F., et al., 2005. Cenozoic K-Rich Adakitic Volcanic Rocks in the Hohxil Area, Northern Tibet:Lower-Crustal Melting in an Intracontinental Setting. Geology, 33(6):465-468. https://doi.org/10.1130/g21522.1 Wang, Q., Wyman, D. A., Xu, J. F., et al., 2008. Eocene Melting of Subducting Continental Crust and Early Uplifting of Central Tibet:Evidence from Central-Western Qiangtang high-K Calc-Alkaline Andesites, Dacites and Rhyolites. Earth and Planetary Science Letters, 272(1-2):158-171. https://doi.org/10.1016/j.epsl.2008.04.034 Watson, E. B., Harrison, T. M., 1983. Zircon Saturation Revisited:Temperature and Composition Effects in a Variety of Crustal Magma Types. Earth and Planetary Science Letters, 64(2):295-304. https://doi.org/10.1016/0012-821x(83)90211-x Wu, H.R., Boulter, C.A., Ke, B.J., et al., 1998. The Changning-Menglian Suture Zone:A Segment of the Major Cathaysian-Gondwana Divide in Southeast Asia. Tectonophysics, 242(3):267-280. https://doi.org/10.1016/0040-1951(94)00210-z Xu, J. F., Shinjo, R., Defant, M. J., et al., 2002. Origin of Mesozoic Adakitic Intrusive Rocks in the Ningzhen Area of East China:Partial Melting of Delaminated Lower Continental Crust? Geology, 30(12):1111-1114. https://doi.org/10.1130/0091-7613(2002)0301111:oomair > 2.0.co; 2 doi: 10.1130/0091-7613(2002)0301111:oomair>2.0.co;2 Zhai, Q.G., Li, C., Cheng, L.R., et al., 2004. Geological Features of Permian Ophiolite in the Jiaomuri Area, Qiangtang, Tibet, and Its Tectonic Significance. Geological Bulletin of China, 23(12):1228-1230 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgqydz200412010 Zhai, Q.G., Wang, J., Li, C., et al., 2010. SHRIMP U-Pb Dating and Hf Isotopic Analyses of Middle Ordovician Meta-Cumulate Gabbro in Central Qiangtang, Northern Tibetan Plateau. Scientia Sinica Terrae, 40(5):565-573 (in Chinese). doi: 10.1360/zd2010-40-5-565 Zhang, Q., Wang, Y., Qian, Q., et al., 2001a. The Characteristics and Tectonic-Metallogenic Significances of the Adakites in Yanshan Period from Eastern China. Acta Petrologica Sinica, 17(2):236-244 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98200102008 Zhang, Q., Wang, Y., Wang, Y.L., 2001b. Preliminary Study on the Components of the Lower Crust in East China Plateau during Yanshanian Period:Constraints on Sr and Nd Isotopic Compositions of Adakite-Like Rocks. Acta Petrologica Sinica, 17(4):505-513 (in Chinese with English abstract). Zhu, T.X., Zhang, Q.Y., Dong, H., et al., 2006. Discovery of the Late Devonian and Late Permian Radiolarian Cherts in Tectonic Mélanges in the Cêdo Caka Area, Shuanghu, Northern Tibet, China. Geological Bulletin of China, 25(12):1413-1418 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgqydz200612009 李才, 董永胜, 翟庆国, 等, 2008.青藏高原羌塘早古生代蛇绿岩:堆晶辉长岩的锆石SHRIMP定年及其意义.岩石学报, 24(1):31-36. 李朋武, 高锐, 崔军文, 等, 2005.西藏和云南三江地区特提斯洋盆演化历史的古地磁分析.地球学报, 26(5):387-404. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqxb200505001 李文昌, 尹光候, 卢映祥, 等, 2010.西南"三江"格咱火山-岩浆弧中红山-属都蛇绿混杂岩带的厘定及其意义.岩石学报, 26(6):1661-1671. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98201006003 李武显, 李献华, 2003.蛇绿岩中的花岗质岩石成因类型与构造意义.地球科学进展, 18(3):392-397. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqkxjz200303011 刘桂春, 孙载波, 曾文涛, 等, 2017.滇西双江县勐库地区湾河蛇绿混杂岩的形成时代、岩石地球化学特征及地质意义.岩石矿物学杂志, 36(2):163-174. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yskwxzz201702003 毛晓长, 王立全, 李冰, 等, 2012.云县-景谷火山弧带大中河晚志留世火山岩的发现及其地质意义.岩石学报, 28(5):1517-1528. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98201205014 潘桂棠, 肖庆辉, 张克信, 等, 2019.大陆中洋壳俯冲增生杂岩带特征与识别的重大科学意义.地球科学, 44(5):1544-1561. doi: 10.3799/dqkx.2019.063 任飞, 潘桂棠, 尹福光, 等, 2017.西南三江地区洋板块地层特征及构造演化.沉积与特提斯地质, 37(4):9-16. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yxgdl201704003 汝珊珊, 李峰, 吴静, 等, 2012.云南大平掌铜多金属矿区花岗闪长斑岩地球化学特征及年代学研究.岩石矿物学杂志, 31(4):531-540. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yskwxzz201204006 王保弟, 王立全, 潘桂棠, 等, 2013.昌宁-孟连结合带南汀河早古生代辉长岩锆石年代学及地质意义.科学通报, 58(4):344-354. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kxtb201304008 王保弟, 王立全, 王冬兵, 等, 2018.三江昌宁-孟连带原-古特提斯构造演化.地球科学, 43(8):2527-2550. doi: 10.3799/dqkx.2018.714 王冬兵, 罗亮, 唐渊, 等, 2016.昌宁-孟连结合带牛井山早古生代埃达克岩锆石U-Pb年龄、岩石成因及其地质意义.岩石学报, 32(8):2317-2329. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98201608006 王冬兵, 罗亮, 唐渊, 等, 2017.昌宁-孟连结合带斜长角闪岩锆石U-Pb年龄、地球化学特征及其地质意义.沉积与特提斯地质, 37(4):17-28. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yxgdl201704004 王立全, 潘桂棠, 丁俊, 等, 2013.青藏高原及邻区地质图及说明书(1:1500000).北京:地质出版社. 王立全, 潘桂棠, 李才, 等, 2008.藏北羌塘中部果干加年山早古生代堆晶辉长岩的锆石SHRIMP U-Pb年龄:兼论原-古特提斯洋的演化.地质通报, 27(12):2045-2056. 翟庆国, 李才, 程立人, 等, 2004.西藏羌塘角木日地区二叠纪蛇绿岩的地质特征及意义.地质通报, 23(12):1228-1230. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgqydz200412010 翟庆国, 王军, 李才, 等, 2010.青藏高原羌塘中部中奥陶世变质堆晶辉长岩锆石SHRIMP年代学及Hf同位素特征.中国科学:地球科学, 40(5):565-573. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgkx-cd201005005 张旗, 王焰, 钱青, 等, 2001a.中国东部燕山期埃达克岩的特征及其构造-成矿意义.岩石学报, 17(2):236-244. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98200102008 张旗, 王焰, 王元龙, 2001b.燕山期中国东部高原下地壳组成初探:埃达克质岩Sr、Nd同位素制约.岩石学报, 17(4):505-513. 朱同兴, 张启跃, 董瀚, 等, 2006.藏北双湖地区才多茶卡一带构造混杂岩中发现晚泥盆世和晚二叠世放射虫硅质岩.地质通报, 25(12):1413-1418. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgqydz200612009 -
dqkx-45-8-3003-Table1.docx
-
下载:
点击查看大图
图(9)
计量
- 文章访问数: 1126
- HTML全文浏览量: 643
- PDF下载量: 74
- 被引次数: 0
