THE NEOPROTEROZOIC GRANITIC GNEISS IN CHAOMAN FOREST FARM AREA OF DAXINGANLING MOUNTAINS: Zircon U-Pb Dating, Geochemistry and Tectonic Environment
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摘要:
对大兴安岭潮满林场地区新元古代花岗质片麻岩进行岩石学、地球化学、成因及构造环境研究结果显示，花岗质片麻岩年龄为795.2±4.3 Ma，形成时代为新元古代. 花岗质片麻岩表现为高硅、高碱、富钙、富钠、富钾、轻稀土元素富集、重稀土元素亏损，Eu为负异常弱亏损. 岩浆源区主要为壳源岩浆，部分幔源岩浆底侵使中下地壳岩石发生部分熔融，且受到幔源组分混染形成混合岩浆. 结合区域资料，研究区新元古代花岗片麻岩形成于与俯冲有关的岩浆弧环境.
Abstract:The study on the petrology, geochemistry, genesis and tectonic environment of Neoproterozoic granitic gneiss in Chaoman Forest Farm area of Daxinganling Mountains yields the age of 795.2±4.3 Ma. The granitic gneiss is characterized by high Si, high alkali, rich Ca, Na and K, enrichment of LREEs and depletion of HREEs, with weak negative Eu anomaly and depletion. The magma source area is mainly crust-derived magma, and some mantle-derived magma underplating causes partial melting of rocks in the middle-lower crust, with hybridization of mantle-derived components to form mixed magma. Combined with regional data, the Neoproterozoic granitic gneiss in the study area was formed in a magmatic arc environment related to subduction.
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Key words:
- Neoproterozoic /
- granitic gneiss /
- geochemistry /
- zircon U-Pb age /
- tectonic environment /
- Daxinganling Mountains
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表 1 片麻状中细粒黑云母二长花岗岩（D5265）锆石同位素测年数据表
Table 1. Zircon isotopic dating data of gneissic fine-medium biotite monzogranite sample(D5265)
编号 元素含量/10-6 206Pb/238U 207Pb/235U 207Pb/206Pb 232U/238Th 206Pb/238U 207Pb/235U Pb Th U 比值 1σ 比值 1σ 比值 1σ 比值 1σ 年龄/Ma 1σ 年龄/Ma 1σ 1 229.02 302.73 513.00 0.13 0.00 1.18 0.02 0.07 0.00 1.45 1 796.00 8.41 791.42 8.76 2 795.27 1148.55 1123.90 0.13 0.00 1.20 0.02 0.07 0.00 0.87 1 796.23 8.61 801.03 8.65 3 858.70 1164.06 1505.49 0.13 0.00 1.19 0.02 0.07 0.00 1.12 1 794.40 8.97 795.63 7.97 4 753.32 1053.68 1197.74 0.13 0.00 1.19 0.02 0.07 0.00 0.98 1 794.75 7.59 796.39 7.95 5 503.83 700.19 934.91 0.13 0.00 1.21 0.03 0.07 0.00 1.16 1 796.58 8.21 803.30 13.69 6 426.04 567.48 1025.07 0.14 0.00 1.25 0.02 0.07 0.00 1.55 1 820.56 10.36 823.10 9.40 7 289.05 355.59 742.00 0.13 0.00 1.22 0.04 0.07 0.00 1.84 1 794.22 8.40 811.07 16.28 8 239.76 304.25 705.43 0.13 0.00 1.19 0.02 0.07 0.00 1.98 1 795.19 12.08 798.01 8.45 9 323.45 356.96 1346.00 0.13 0.00 1.22 0.02 0.07 0.00 3.17 1 794.42 8.54 810.39 8.90 10 553.05 763.21 942.66 0.13 0.00 1.23 0.02 0.07 0.00 1.03 1 796.82 8.17 812.20 8.51 11 288.47 383.17 500.13 0.13 0.00 1.20 0.02 0.07 0.00 1.11 1 794.26 8.97 801.32 7.72 12 705.86 990.34 1256.01 0.13 0.00 1.21 0.02 0.07 0.00 1.02 1 794.81 9.11 806.58 8.56 13 123.65 164.45 289.89 0.13 0.00 1.22 0.02 0.07 0.00 1.39 1 796.61 10.46 807.94 9.97 14 170.53 212.85 541.03 0.13 0.00 1.22 0.02 0.07 0.00 2.01 1 794.93 9.65 808.84 10.16 15 142.68 164.21 585.85 0.13 0.00 1.19 0.02 0.07 0.00 2.73 1 794.72 11.16 797.07 9.97 16 295.65 381.02 522.81 0.14 0.00 1.29 0.02 0.07 0.00 1.04 1 846.80 10.67 841.34 10.25 17 193.15 281.09 263.66 0.13 0.00 1.19 0.02 0.07 0.00 0.73 1 794.74 10.04 795.05 9.91 18 194.02 251.24 463.93 0.13 0.00 1.21 0.02 0.07 0.00 1.41 1 795.21 10.75 805.33 9.97 19 281.63 396.62 531.66 0.13 0.00 1.22 0.02 0.07 0.00 1.01 1 794.63 9.51 809.19 10.39 20 747.13 985.57 1210.51 0.13 0.00 1.28 0.03 0.07 0.00 0.93 1 794.03 12.07 834.69 14.39 测试单位：国土资源部武汉矿产资源监督检测中心（湖北省地质实验测试中心）. 
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[1] 表尚虎, 李仰春, 何晓华, 等. 黑龙江省塔河绿林林场一带兴华渡口群岩石地球化学特征[J]. 中国区域地质, 1999, 18(1): 28-33. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD901.004.htm
Biao S H, Li Y C, He X H, et al. The geochemical characteristics of the Xinghuadukou Group in the Lülin forestry center, Tahe, Heilongjiang province[J]. Regional Geology of China, 1999, 18(1): 28-33. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD901.004.htm
[2] 孙广瑞, 李仰春, 张昱. 额尔古纳地块基底地质构造[J]. 地质与资源, 2002, 11(3): 129-139. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract9735.shtml
Sun G R, Li Y C, Zhang Y. The basement tectonics of Ergun massif[J]. Geology and Resources, 2002, 11(3): 129-139. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract9735.shtml
[3] 苗来成, 刘敦一, 张福勤, 等. 大兴安岭韩家园子和新林地区兴华渡口群和扎兰屯群锆石SHRIMP U-Pb年龄[J]. 科学通报, 2007, 52(5): 591-601. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200705018.htm
Miao L C, Liu D Y, Zhang F L, et al. Zircon SHRIMP U-Pb ages of the "Xinghuadukou Group" in Hanjiayuanzi and Xinlin areas and the "Zhalantun Group" in Inner Mongolia, Da Hinggan Mountains[J]. Chinese Science Bulletin, 2007, 52(8): 1112-1124. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200705018.htm
[4] 孙立新, 任邦方, 赵凤清, 等. 内蒙古额尔古纳地块古元古代末期的岩浆记录——来自花岗片麻岩的锆石U-Pb年龄证据[J]. 地质通报, 2013, 32(2/3): 341-352. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD2013Z1012.htm
Sun L X, Ren B F, Zhao F Q, et al. Late Paleoproterozoic magmatic records in the Erguna massif: Evidences from the zircon U-Pb dating of granitic gneisses[J]. Geological Bulletin of China, 2013, 32(2/3): 341-352. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD2013Z1012.htm
[5] 佘宏全, 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. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201202019.htm
She H Q, Li J W, Xiang A P, et al. U-Pb ages of the zircons from primary rocks in middle-northern Daxinganling and its implications to geotectonic evolution[J]. Acta Petrologica Sinica, 2012, 28(2): 571-594. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201202019.htm
[6] 贾立民, 刘洪章, 鞠佳星, 等. 大兴安岭绿林林场一带兴华渡口岩群原岩恢复及大地构造环境探讨[J]. 地质力学学报, 2018, 24 (4): 544-554. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLX201804040.htm
Jia L M, Liu H Z, Ju J X, et al. Protolith reconstruction and geotectonic environmental research of Xinghuadukou rock group in Lvlin forestry center, Daxing'anling[J]. Journal of Geomechanics, 2018, 24(4): 544-554. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLX201804040.htm
[7] 葛文春, 吴福元, 周长勇, 等. 大兴安岭北部塔河花岗岩体的时代及对额尔古纳地块构造归属的制约[J]. 科学通报, 2005, 50(12): 1239-1247. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200512014.htm
Ge W C, Wu F Y, Zhou C Y, et al. Emplacement age of the Tahe granite and its constraints on the tectonic nature of the Ergun block in the northern part of the Da Hinggan Range[J]. Chinese Science Bulletin, 2005, 50(18): 2097-2105. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200512014.htm
[8] 许文良, 孙晨阳, 唐杰, 等. 兴蒙造山带的基底属性与构造演化过程[J]. 地球科学, 2019, 44(5): 1620-1646. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201905017.htm
Xu W L, Sun C Y, Tang J, et al. Basement nature and tectonic evolution of the Xing'an-Mongolian orogenic belt[J]. Earth Science, 2019, 44(5): 1620-1646. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201905017.htm
[9] 刘宇崴, 杜兵盈, 张铁安, 等. 大兴安岭环二库地区新元古代晚期花岗岩发现及其地质意义[J]. 地质与资源, 2017, 26(5): 453-459. doi: 10.3969/j.issn.1671-1947.2017.05.004 http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8567.shtml
Liu Y W, Du B Y, Zhang T A, et al. Discovery and geological significance of the late Neoproterozoic granite in Huanerku, Daxinganling Region[J]. Geology and Resources, 2017, 26(5): 453-459. doi: 10.3969/j.issn.1671-1947.2017.05.004 http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8567.shtml
[10] 郑全波, 李文龙, 肖林, 等. 大兴安岭富克山地区兴华渡口群地球化学及锆石U-Pb年龄特征[J]. 世界地质, 2018, 37(2): 363-373. doi: 10.3969/j.issn.1004-5589.2018.02.004
Zheng Q B, Li W L, Xiao L, et al. Geochemistry and zircon U-Pb dating of Xinghuadukou Group in Fukeshan area of Great Xing'an Range[J]. Global Geology, 2018, 37(2): 363-373. doi: 10.3969/j.issn.1004-5589.2018.02.004
[11] 赵院冬, 许逢明, 车继英, 等. 锆石U-Pb定年对大兴安岭东北部"兴华渡口群"形成时代和组成的约束[J]. 中国地质, 2017, 44 (3): 575-587. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI201703014.htm
Zhao Y D, Xu F M, Che J Y, et al. Constraints from the zircon U-Pb dating on the formation age and composition of the Xinhuadukou Group in northeastern Da Hinggan Mountains[J]. Geology in China, 2017, 44(3): 575-587. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI201703014.htm
[12] 那福超, 宋维民, 刘英才, 等. 大兴安岭扎兰屯地区前寒武纪变质岩系年龄及其构造意义[J]. 地质通报, 2018, 37(9): 1607-1619. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201809006.htm
Na F C, Song W M, Liu Y C, et al. Chronological study and tectonic significance of Precambrian metamorphic rocks in Zhalantun area of Da Hinggan Mountains[J]. Geological Bulletin of China, 2018, 37(9): 1607-1619. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201809006.htm
[13] 张明, 王忠, 孟二根, 等. 内蒙古大兴安岭北部新元古代花岗岩岩石地球化学特征及构造意义[J]. 地质与资源, 2006, 15(2): 98-106. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract9482.shtml
Zhang M, Wang Z, Meng E G, et al. Geochemical characteristics and tectonic significance of the Neoproterozoic granites in northern Daxinganling, Inner Mongolia[J]. Geology and Resources, 2006, 15(2): 98-106. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract9482.shtml
[14] 王洪波, 杨晓平. 大兴安岭北段新一轮国土资源大调查以来的主要基础地质成果与进展[J]. 地质通报, 2013, 32(2/3): 525-532. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD2013Z1025.htm
Wang H B, Yang X P. Main geological achievements and progress of the new round of national land and resources survey in North Daxinganling[J]. Geological Bulletin of China, 2013, 32(2/3): 525-532. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD2013Z1025.htm
[15] 周建波, 王斌, 曾维顺, 等. 大兴安岭地区扎兰屯变质杂岩的碎屑锆石U-Pb年龄及其大地构造意义[J]. 岩石学报, 2014, 30 (7): 1879-1888. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201407004.htm
Zhou J B, Wang B, Zeng W S, et al. Detrital zircon U-Pb dating of the Zhalantun metamorphic complex and its tectonic implications, Great Xing'an, NE China[J]. Acta Petrologica Sinica, 2014, 30 (7): 1879-1888. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201407004.htm
[16] 徐久磊. 额尔古纳地块兴华渡口群变质作用研究[D]. 长春: 吉林大学, 2018.
Xu J L. Metamorphism of the Xinghuadukou complex in the Erguna massif[D]. Changchun: Jilin University, 2018.
[17] 边红业, 吉峰, 表尚虎. 大兴安岭富西里地区赞岐岩-(石英)二长闪长岩LA-ICP-MS锆石U-Pb定年及其地质意义[J]. 世界地质, 2014, 33(4): 768-779. https://www.cnki.com.cn/Article/CJFDTOTAL-SJDZ201404004.htm
Bian H Y, Ji F, Biao S H. LA-ICP-MS zircon U-Pb dating of sanuklite-(quartz)monzodiorite in Fuxili area, Daxing'anling and its geological significance[J]. Global Geology, 2014, 33(4): 768-779. https://www.cnki.com.cn/Article/CJFDTOTAL-SJDZ201404004.htm
[18] 郭宇飞, 杨言辰, 韩世炯, 等. 大兴安岭北部凤凰山地区英云闪长岩地球化学特征与锆石U-Pb定年[J]. 吉林大学学报(地球科学版), 2016, 46(5): 1406-1417. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201605033.htm
Guo Y F, Yang Y C, Han S J, et al. Geochemistry and zircon U-Pb dating of the Tonalite from Fenghuangshan area in northern Daxing'anling[J]. Journal of Jilin University(Earth Science Edition), 2016, 46(5): 1406-1417. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201605033.htm
[19] 刘芳, 王晰, 海连富, 等. 大兴安岭南段罕苏木地区二长花岗岩锆石U-Pb年龄、Hf同位素特征及其伸展构造作用[J]. 中国地质, 2021, 48(5): 1609-1622. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202105023.htm
Liu F, Wang X, Hai L F, et al. Zircon U-Pb ages, Hf isotope and extensional tectonics of monzogranite in the Hansumu area of southern Great Khingan[J]. Geology in China, 2021, 48(5): 1609-1622. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202105023.htm
[20] 于跃江, 赵忠海, 杨欣欣, 等. 大兴安岭北段漠河前陆盆地早侏罗世火山岩时代的厘定[J]. 中国地质, 2021, 48(2): 580-592. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202102017.htm
Yu Y J, Zhao Z H, Yang X X, et al. Dating of Early Jurassic volcanic rocks in the Mohe foreland basin of northern Greater Khingan Mountains, Northeast China[J]. Geology in China, 2021, 48(2): 580-592. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202102017.htm
[21] 申亮, 赵胜金, 于海洋, 等. 大兴安岭哈达陶勒盖组火山岩年龄、地球化学特征及其陆缘弧构造背景[J]. 中国地质, 2020, 47(4): 1041-1055. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202004011.htm
Shen L, Zhao S J, Yu H Y, et al. Zircon age and geochemical characteristics of Hadataolegai Formation volcanic rocks in Da Hinggan Mountains and its continental marginal arc setting[J]. Geology in China, 2020, 47(4): 1041-1055. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202004011.htm
[22] 李锦轶. 中国东北及邻区若干地质构造问题的新认识[J]. 地质论评, 1998, 44(4): 339-347. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP199804001.htm
Li J Y. Some new ideas on tectonics of NE China and its neighboring areas[J]. Geological Review, 1998, 44(4): 339-347. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP199804001.htm
[23] 许文良, 王枫, 裴福萍, 等. 中国东北中生代构造体制与区域成矿背景: 来自中生代火山岩组合时空变化的制约[J]. 岩石学报, 2013, 29(2): 339-353. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201302002.htm
Xu W L, Wang F, Pei F P, et al. Mesozoic tectonic regimes and regional ore-forming background in NE China: Constraints from spatial and temporal variations of Mesozoic volcanic rock associations[J]. Acta Petrologica Sinica, 2013, 29(2): 339-353. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201302002.htm
[24] 王五力, 李永飞, 郭胜哲. 中国东北地块群及其构造演化[J]. 地质与资源, 2014, 23(1): 4-24. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8797.shtml
Wang W L, Li Y F, Guo S Z. The Northeast China block group and its tectonic evolution[J]. Geology and Resources, 2014, 23 (1): 4-24. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8797.shtml
[25] 李琦, 曾忠诚, 陈宁, 等. 阿尔金造山带青白口纪亚干布阳片麻岩年龄、地球化学特征及其地质意义[J]. 地质通报, 2018, 37(4): 642-654. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201804012.htm
Li Q, Zeng Z C, Chen N, et al. Zircon U-Pb ages, geochemical characteristics and geological significance of Yaganbuyang gneiss in Qingbaikou Period along the Altun orogenic belt[J]. Geological Bulletin of China, 2018, 37(4): 642-654. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201804012.htm
[26] 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.
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