Basement Structural Features of Mesozoic Volcanic Basins in Erguna Massif: Implications from Lingquan Basin
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摘要: 灵泉盆地布格重力异常特征表明灵泉盆地两侧重力低异常区主要为侏罗-白垩系断陷区，中部主要为基底隆起区.对布格重力异常进行向上延拓处理，结果发现深部地质体具有"东、西深，中间浅"分布特征；剩余重力异常也说明中部局部重力高主要反映基底隆起，东部和西部局部重力低主要反映侏罗-白垩系断陷.灵泉盆地基底断裂早期以北东向为主，晚期发育北西向断裂，区内还有早期近南北向和东西向断裂存在.将灵泉盆地构造单元划分为西部断陷区、中部隆起区和东部断陷区之后发现，灵泉盆地实际上是个相对隆起而不是断陷盆地，这是盆地发生构造反转作用的结果，额尔古纳地块上的其他中生代火山岩盆地普遍具有这种模式，额尔古纳地块中生代盆地基底总体上具有"南深北浅"的特点.Abstract: Characteristics of Bouguer gravity anomaly in the Lingquan basin indicate that lower gravity region on both sides of the basin is mainly the Jurassic-Cretaceous fault zone, the center is mainly a basement uplift. The upward continuation of the gravity anomaly is carried out, the results show that the upper surface of deep geological bodies has the characteristics of "east, west deep and center shallow"; the residual gravity anomaly also indicates that the local gravity of the central region mainly reflects the basement uplift, and the lower gravity of the eastern and western regions mainly reflects the fault of the Jurassic-Cretaceous. The basement faults of the Lingquan basin mainly are north and north-east, secondly is northwest, there are also early near north-south and east-west faults. The tectonic unit of the Lingquan basin is divided into the western fault zone, the central uplift zone and the eastern fault zone, we find that the Lingquan basin is actually an uplift rather than a graben basin, this is the result of tectonic inversion in the basin, other Mesozoic volcanic basins in the Erguna massif also have this model, and its basement is characterized by "shallow south deep north".
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Key words:
- Erguna massif /
- Lingquan basin /
- gravity anomaly /
- basement structure /
- geophysics
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图 1 灵泉盆地地质简图
Ⅰ.额尔古纳地块；Ⅱ.松嫩地块；Ⅲ.兴安地块；①塔河-喜桂图缝合带；②嫩江-贺根山缝合带
Fig. 1. Sketch geological map of the Lingquan Basin
图 3 向上延拓不同高度布格重力异常平面图
Fig. 3. Upward continuation of the different height of the bouguer gravity anomaly ichnography
图 4 灵泉盆地布格重力剩余异常平面图
Fig. 4. Bouguer gravity residual anomaly ichnography of the Lingquan Basin
图 5 重力异常与断层倾向关系示意图
Fig. 5. The relationship diagram of the gravity anomalies and fault dip
图 6 重力异常水平一阶导数与垂直断层面关系示意图
Fig. 6. The relationship diagram of the first derivative of gravity anomaly and vertical fault plane
图 7 向上延拓不同高度重力水平方向总梯度矢量模异常图
Fig. 7. Upward continuation of the different height of the gravity horizontal direction total gradient vector ichnography
图 8 向上延拓500 m后重力水平总梯度矢量模异常和基底断裂分布图
Fig. 8. Upward continuation of the 500 m of the gravity horizontal direction total gradient vector and basement fault
图 9 灵泉盆地基底断裂分布综合地质图
据核工业243大队内部资料
Fig. 9. Comprehensive geological map of basement fault distribution in the Lingquan Basin
图 11 重力异常反演侏罗系底面等深图
Fig. 11. The isobathic diagram of subface of the Jurassic by gravity inversion
图 12 海拉尔盆地红旗凹陷地震剖面图
据大庆油田勘探研究院
Fig. 12. The seismic cross-sectionof the Hongqi Sag in the Hailar Basin
图 14 内蒙古东部前中生代基底与主要盆地分布简图
据1:500 000地质图
Fig. 14. Thegeological map of the pre-Mesozoic basement and the main basins in the eastern Inner Mongolia
表 1 重力数据处理的内容、目的和方法
Table 1. The content, purpose and method of gravity data processing
处理内容 地质目的 方法 向上延拓100 m、300 m、500 m、700 m、1 000 m、2 000 m、3 000 m、4 000 m 了解重力异常衰减特征，区分深源(低频)和浅源(高频)场；提取局部异常，分析区域构造与局部构造特征 空间域-波数域 布格重力异常 剩余异常 布格重力异常减去上延1 000 m后重力异常 了解重力异常衰减特征，区分深源(低频)和浅源(高频)场；提取局部异常，分析区域构造与局部构造特征 空间域-波数域 侏罗系底面 频率域Parker迭代反演 小子域滤波(窗口半径250 m) 划分深、浅层断裂，了解断裂位置和展布特征等 空间域-波数域 水平总梯度矢量模 划分深、浅层断裂，了解断裂位置和展布特征等 空间域-波数域 
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Chen, C.Y., Gao, Y.F., Wu, H.B., et al., 2016.Zircon U-Pb Chronology of Volcanic Rocks in the Hailaer Basin, NE China and Its Geological Implications.Earth Science, 41(8):1259-1274 (in Chinese with English abstract). Gao, S.F., Wu, X.H., A, Q.N., et al., 2013.Early Cretaceous Stratigraphic Sequence and Evolution in the Labudalin Basin.Inner Mongolia Science Technology & Economy, (12):47-49 (in Chinese). http://hrcak.srce.hr/file/6362 Ge, W.C., Li, X.H., Lin, Q., et al., 2001.Geochemistry of Early Cretaceous Alkaline Rhyolites from Hulun Lake, Daxing'anling and Its Tectonic Implications.Chinese Journal of Geology, 36(2):176-183 (in Chinese with English abstract). doi: 10.1007/s11430-013-4614-5 Ge, W.C., Lin, Q., Li, X.H., et al., 2000a.Geochemical Characteristics of Basalts of the Early Cretaceous Yiliekede Formation, North Daxing'anling.Journal of Mineralogy and Petrology, 20(3):14-18(in Chinese with English abstract). doi: 10.1007/s12583-013-0374-6 Ge, W.C., Lin, Q., Sun, D.Y., et al., 2000b.Geochemical Research into Origins of Two Types of Mesozoic Rhyolites in Daxing'anling.Earth Science, 25(2):172-178 (in Chinese with English abstract). http://www.doc88.com/p-5137628054468.html Kuzmin, M.L., Abramovich, G.Y., Dril, S.L., et al., 1996.The Mongolian-Okhotsk Suture as the Evidence of Late Paleozoic-Mesozoic Collisional Processes in Central Asia.Abstract of 30th IGC, 1:261. http://or.nsfc.gov.cn/bitstream/00001903-5/460379/1/1000013614270.pdf Li, C.M., Li, J., 2013.Principles and Methods of Gravity and Magmetic Exploration.Science Press, Beijing, 259-260 (in Chinese). Li, J.Y., 1998.Some New Ideas on Tectonics of NE China and Its Neighboring Areas.Geological Review, 44(4):339-347 (in Chinese with English abstract). Li, J.Y., 2006.Permian Geodynamic Setting of Northeast China and Adjacent Regions:Closure of the Paleo-Asian Ocean and Subduction of the Paleo-Pacific Plate.Journal of Asian Earth Sciences, 26(3-4):207-224.doi: 10.1016/j.jseaes.2005.09.001 Lin, Q., Ge, W.C., Cao, L., et al., 2003.Geochemistry of Mesozoic Volcanic Rocks in Da Hinggan Ling:The Bimodal Volcanic Rocks.Geochimica, 32(3):208-222(in Chinese with English abstract). http://industry.wanfangdata.com.cn/yj/Detail/Periodical?id=Periodical_dqhx200303002 Liu, Y.J., Li, W.M., Feng, Z.Q., et al., 2017.A Review of the Paleozoic Tectonics in the Eastern Part of Central Asian Orogenic Belt.Gondwana Research, 43:123-148.doi: 10.1016/j.gr.2016.03.013 Meng, E., Xu, W.L., Pei, F.P., et al., 2008.Chronology of Late Paleozoic Volcanism in Eastern and Southeastern Margin of Jiamusi Massif and Its Tectonic Implications.Chinese Sciences Bulletin, 53(8):1231-1245.doi: 10.1007/s11434-008-0164-1 Meng, E., Xu, W.L., Pei, F.P., et al., 2010.Detrital-Zircon Geochronology of Late Paleozoic Sedimentary Rocks in Eastern Heilongjiang Province, NE China:Implications for the Tectonic Evolution of the Eastern Segment of the Central Asian Orogenic Belt.Tectonophysics, 485(1-4):42-51.doi: 10.1016/j.tecto.2009.11.015 No.208 Geological Party of Nuclear Industry, 2009.Comprehensive Geological Survey of Volcanic Type Uranium Deposits in the Sanhe-Enhe Area, Eerguna, Inner Mongolia:2009 Report.Internal Data (in Chinese). No.243 Geological Party of Nuclear Industry, 2013.Study on the Structural Characteristics of Fault and Volcanic, and Its Relationship with Uranium Polymetallic Mineralization, Lingquan, Inner Mongolia.Internal Data (in Chinese). Wang, F., Zhou, X.H., Zhang, L.C., et al., 2006.Late Mesozoic Volcanism in the Great Xing'an Range (NE China):Timing and Implications for the Dynamic Setting of NE Asia.Earth and Planetary Science Letters, 251(1-2):179-198.doi: 10.1016/j.epsl.2006.09.007 Wang, S.H., Wang, L.M., Tang, J.S., 2001.Basin Formation Mechanics and Hydrocarbon Potential Evaluation of Xing'anling Basin Group.Petroleum Geology & Oilfield Development in Daqing, 20(5):5-6(in Chinese with English abstract). doi: 10.1007/s12182-016-0110-9 Wu, F.Y., Sun, D.Y., Ge, W.C., et al., 2011.Geochronology of the Phanerozoic Granitoids in Northeastern China.Journal of Asian Earth Sciences, 41(1):1-30.doi: 10.1016/j.jseaes.2010.11.014 Xu, W.L., Ji, W.Q., Pei, F.P., et al., 2009.Triassic Volcanism in Eastern Heilongjiang and Jilin Provinces, NE China:Chronology, Geochemistry, and Tectonic Implications.Journal of Asian Earth Sciences, 34(3):392-402.doi: 10.1016/j.jseaes.2008.07.001 Zhang, L., Liu, Y.J., Li, W.M., et al., 2013.Discussion on the Basement Properties and Boundary of the Erguna Massif.Chinese Journal of Geology, 48(1):227-244 (in Chinese with English abstract). Zhang, M.S., Peng, X.D., Sun, X.M., 1998.The Paleozoic Tectonic Geographical Pattern of Northeast China.Liaoning Geology, (2):91-96 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-LOAD802.001.htm Zhao, S., Xu, W.L., Tang, J., et al., 2016.Neoproterozoic Magmatic Events and Tectonic Attribution of the Erguna Massif:Constraints from Geochronological, Geochemical and Hf Isotopic Data of Intrusive Rocks.Earth Science, 41(11):1803-1829 (in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTotal-DQKX201611001.htm Zhao, X., Coe, R.S., Gilder, S.A., et al., 1996.Palaeomagnetic Constraints on the Palaeogeography of China:Implications for Gondwanaland.Australian Journal of Earth Sciences, 43(6):643-672.doi: 10.1080/08120099608728285 陈崇阳, 高有峰, 吴海波, 等, 2016.海拉尔盆地火山岩的锆石U-Pb年龄及其地质意义.地球科学, 41(8):1259-1274. http://earth-science.net/WebPage/Article.aspx?id=3336 高少峰, 吴晓辉, 阿其娜, 等, 2013.拉布达林盆地早白垩世地层序列及盆地演化规律.内蒙古科技与经济, (12):47-49. http://d.wanfangdata.com.cn/Periodical/nmgkjyjj201312024 葛文春, 李献华, 林强, 等, 2001.呼伦湖早白垩世碱性流纹岩的地球化学特征及其意义.地质科学, 36(2):176-183. http://www.doc88.com/p-7098075178386.html 葛文春, 林强, 李献华, 等, 2000a.大兴安岭北部伊列克得组玄武岩的地球化学特征.矿物岩石, 20(3):14-18. http://www.cqvip.com/qk/94361X/200003/4528041.html 葛文春, 林强, 孙德有, 等, 2000b.大兴安岭中生代两类流纹岩成因的地球化学研究.地球科学, 25(2):172-178. http://earth-science.net/WebPage/Article.aspx?id=920 核工业208大队, 2009. 内蒙古额尔古纳市三河-恩和地区火山岩型铀矿地质调查2009年度总结报告. 内部资料. 核工业243大队, 2013. 内蒙古灵泉地区断裂、火山构造特征及其与铀多金属矿化关系研究项目成果报告. 内部资料. 李才明, 李军, 2013.重磁勘探原理与方法.北京:科学出版社, 259-260. 李锦轶, 1998.中国东北及邻区若干地质构造问题的新认识.地质论评, 44(4):339-347. http://www.cqvip.com/QK/91067X/1998004/3089913.html 林强, 葛文春, 曹林, 等, 2003.大兴安岭中生代双峰式火山岩的地球化学特征.地球化学, 32(3):208-222. http://d.wanfangdata.com.cn/Periodical/dqhx200303002 王世辉, 王立民, 唐金生, 2001.兴安岭盆地群成盆机制及含油气远景评价.大庆石油地质与开发, 20(5):5-6. http://d.wanfangdata.com.cn/Periodical/dqsydzykf200105003 张丽, 刘永江, 李伟民, 等, 2013.关于额尔古纳地块基底性质和东界的讨论.地质科学, 48(1):227-244. http://d.wanfangdata.com.cn/Periodical/dzkx201301015 张梅生, 彭向东, 孙晓猛, 1998.中国东北区古生代构造古地理格局.辽宁地质, (2):91-96. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=load802.001&dbname=CJFD&dbcode=CJFQ 赵硕, 许文良, 唐杰, 等, 2016.额尔古纳地块新元古代岩浆作用与微陆块构造属性:来自侵入岩锆石U-Pb年代学、地球化学和Hf同位素的制约.地球科学, 41(11):1803-1829. http://earth-science.net/WebPage/Article.aspx?id=3381 -
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