Crustal Tectonic Evolution of Tanlu Fault Zone (Southern Segment) and Adjacent Areas under the Background of Extension: Evidences from Teleseismic Receiver Function
-
摘要: 为了更加深入了解中生代白垩世以后大陆伸展对郯庐断裂带南段地壳结构和演化的影响.利用P波接收函数对郯庐断裂带南段及其邻区的地壳厚度、泊松比特征进行研究.H⁃κ结果显示研究区域内的下扬子板块地壳厚度相对于华北板块更薄，并且结构变化更加剧烈，大别山造山带和苏鲁造山带之间的郯庐断裂带所在区间的平均泊松比呈现出相对低值特征.P波接收函数叠后偏移结果显示郯庐断裂带下方的地壳表现为减薄形变，且断裂带两侧地壳向郯庐断裂带处发生减薄的倾角不同.结合区域地质演化背景，认为“非对称伸展”模型可以解释早白垩世伸展作用下郯庐断裂带南段及其邻区的地壳形变及演化特征.Abstract: For the more thorough understanding of the crustal structure and evolution of Tanlu fault under extension background since early Cretaceous, we completed a study about crustal thickness and Poisson's ratio of Tanlu fault zone (southern segment) and adjacent Areas by P-wave receiver function. The results of H⁃κ showed the Lower Yangtze block's crust is relatively thinner and more severe deformation than the North China block's in study area. The average Poisson's ratio beneath Tanlu fault zone exhibited lower value feature. The result of migration revealed a crustal thinning deformation beneath the Tanlu fault zone, and a significant differences on thinning dip angle of Moho toward the Tanlu fault zone on both sides of the fault zone. Furthermore, The model of Asymmetrical extension could well explain the crustal evolution of southern segment of the Tanlu fault zone and its adjacent regions under extension background since early Cretaceous.
-
图 1 台站及地震事件分布、区域地质构造图
a.宽频带地震台站分布；b.研究区地质构造简图；c.地震事件震中分布；SLOB. 苏鲁造山带；DBOB. 大别山造山带；MLYRMB. 长江中下游成矿带；NCP. 华北平原；JBB. 苏北盆地；HFB. 合肥盆地；F1. 郯庐断裂带；F2. 江山-绍兴断裂；F3. 淮阴-响水口断裂；F4. 信阳-六安断裂；F5. 襄樊-广济断裂
Fig. 1. Station and epicenter distribution, and regional geological structure map
图 2 AH.CHZ台提取的接收函数
a. AH.CHZ平均接收函数；b. AH.CHZ接收函数排列；c. AH.CHZ接收函数对应地震事件反方位角（红色方块）震中距（黑色倒三角）
Fig. 2. The P⁃RFs from AH.CHZ
图 3 地壳厚度和区域泊松比特征
Fig. 3. The crustal thickness and the regional Poission's ratio feature
图 4 接收函数叠后偏移剖面图
a.6个宽频带台站分布及射线在地下的穿透点；b.120条接收函数（每个台站随机抽取20条）；c.叠后偏移成像结果
Fig. 4. The profile of RF poststack migration
图 5 非对称伸展模型
a. 挤压走滑阶段；b.巨型伸展阶段；依据嵇少丞等（2009）及牛漫兰等（2010）的地壳演化模型修改
Fig. 5. The model named Isothermal surface raising and Asymmetrical extension
表 1 每个台站对应的地壳厚度、Vp/Vs波速比及平均泊松比
Table 1. Crustal thickness, Vp/Vs and average Poisson's ratio under every station By H⁃κ
构造单元 台站编号 地壳厚度
(km)波速比(κ)
Vp/Vs泊松比(σ) 华北板块 华北平原 JS.PX 32.4 1.77 0.27 JS.XZ 33.2 1.78 0.26 JS.PZ 32.8 1.75 0.26 AH.HBE 34.4 1.78 0.27 AH.MCG 31.6 1.74 0.25 AH.HNA 33.6 1.77 0.26 AH.BEB 31.2 1.72 0.25 AH.DYN 35.8 1.65 0.21 合肥盆地 AH.BAS 34.4 1.65 0.21 AH.SCH 35.4 1.74 0.25 大别造山带 AH.FZL 36.6 1.77 0.26 AH.JZA 35.2 1.71 0.24 下扬子板块 苏鲁造山带 JS.DH 31.2 1.71 0.24 JS.XW 32.2 1.74 0.25 JS.GUY 25.6 1.86 0.30 JS.HUA 28.6 1.78 0.27 JS.SQ 32.2 1.75 0.26 JS.SH 31.6 1.80 0.28 苏北盆地 JS.SY 28.8 1.74 0.25 JS.YC 29.9 1.73 0.25 JS.DF 32.0 1.73 0.25 JS.GY 31.6 1.74 0.26 沿江中下游成矿带 JS.HA 28.8 1.75 0.26 AH.JAS 30.2 1.77 0.27 JS.LH 25.0 1.88 0.30 AH.CHZ 32.2 1.72 0.25 JS.JJ 36.4 1.64 0.22 JS.ZJ 33.6 1.72 0.25 JS.RD 30.9 1.70 0.24 JS.WX 31.6 1.77 0.27 JS.GC 30.4 1.77 0.26 AH.MAS 31.8 1.75 0.26 JS.NJ 30.9 1.70 0.24 JS.LIS 30.0 1.78 0.27 AH.ANQ 33.2 1.74 0.25 AH.TOL 34.0 1.74 0.25 华南褶皱系 AH.HUS 35.4 1.75 0.26 
下载: 导出CSV
-
Bonin, B., 2007. A-Type Granites and Related Rocks: Evolution of a Concept, Problems and Prospects. Lithos, 97(1/2): 1-29. https://doi.org/10.1016/j.lithos.2006.12.007 Castillo, P. R., 2012. Adakite Petrogenesis. Lithos, 134-135(52): 304-316. https://doi.org/10.1016/j.lithos. 2011. 09.013 doi: 10.1016/j.lithos.2011.09.013 Chen, L., Wen, L. X., Zheng, T. Y., 2005. A Wave Equation Migration Method for Receiver Function Imaging: 2. Application to the Japan Subduction Zone. Journal of Geophysical Research: Solid Earth, 110(B11). https://doi.org/10.1029/2005jb003666 Christensen, N. I., 1996. Poisson's Ratio and Crustal Seismology. Journal of Geophysical Research: Solid Earth, 101(B2): 3139-3156. https://doi.org/10.1029/95jb03446 Gu, Q. P., Ding, Z. F., Kang, Q. Q, . et al., 2020. Group Velocity Tomography of Rayleigh Wave in the Middle-Southern Segment of the Tan-Lu Fault Zone and Adjacent Regions Using Ambient Seismic Noise. Chinese J. Geophys. , 63(4): 1505-1522(in Chinese with English abstract). Hong, D. Q., Huang, X. L., Yang, Y., et al., 2021. Lateral Variation in Moho Depth around the Southern Tanlu Fault Zone and its Adjacent Area. Earthquake Science, 34(1): 77-87. https://doi.org/10.29382/eqs-2020-0063 Ji, S. C., Wang, X., Yang, W. C., 2009. Correlation between Crustal Thickness and Poisson's Ratio in the North China Craton and Its Implication for Lithospheric Thinning. Acta Geologica Sinica, 83(3): 324-330(in Chinese with English Abstract). doi: 10.3321/j.issn:0001-5717.2009.03.002 Lei, J. S., Zhao, D. P., Xu, X. W., et al., 2020. P-Wave Upper-Mantle Tomography of the Tanlu Fault Zone in Eastern China. Physics of the Earth and Planetary Interiors, 299(2): 106402. https://doi.org/10.1016/j.pepi.2019.106402 Li, C., Yao, H. J., Yang, Y., et al., 2020. 3-D Shear Wave Velocity Structure in the Shallow Crust of the Tanlu Fault Zone in Lujiang, Anhui, and Adjacent Areas, and its Tectonic Implications. Earth and Planetary Physics, 4(2): 1-12. https://doi.org/10.26464/epp2020026 Li, T. T., Liu, L., Fan, W. H., et al., 2020. Crustal Thickness and Ratio of Poisson in Jiangsu Area by Teleseismic Receiver Function. Journal of seismological research, 196(4), 82-90(in Chinese with English Abstract). Li, S. G., He, Y. S., Wang, S. J., 2013. Process and Mechanism of Mountain-Root Removal of the Dabie Orogen: Constraints from Geochronology and Geochemistry of Post-Collisional Igneous Rocks. Chinese Science Bulletin, 58(35): 4411-4417. https://doi.org/10.1007/s11434-013-6065-y Ligorría, J. P., Ammon, C. J., 1999. Iterative Deconvolution and Receiver-Function Estimation. Bulletin of the Seismological Society of America, 89(5): 1395-1400. https://doi.org/10.1785/bssa0890051395 Menzies, M. A., Fan, W. M., Zhang, M., 1993. Palaeozoic and Cenozoic Lithoprobes and the Loss of > 120 km of Archaean Lithosphere, Sino-Korean Craton, China. Geological Society, London, Special Publications, 76(1): 71-81. https://doi.org/10.1144/gsl.sp.1993.076.01.04 Niu, M. L., Zhu, G., Xie C. L., et al., 2008. LA-ICP MS Zircon U-Pb Ages of the Granites from the Southern Segment of the Zhangbaling Uplift Along the Tan-Lu Fault Zone and their Tectonic Significances. Acta Petrologica Sinica, 24(8): 1839-1847(in Chinese with English Abstract). Niu, M. L., Zhu, G., Xie, C. L., et al., 2010. Geochemistry of Late Mesozoic Intrusions from the Southern Segment of Zhangbaling Uplift Along the Tan-Lu Fault Zone and Its Implications for the Lithospheric Thinning. Acta Petrologica Sinica, 26(9): 2783-2804(in Chinese with English Abstract). Qiu, Z. L., 2009. Geochemistry and Hf Isotopes of Zircon Megacrysts in Cenozoic Basalts along Eastern China and Its Implications for Crust-Mantle Nteraction beneath Subcontinental Lithosphere Mantle Geochemistry and Hf Isotopes of Zircon Megacrysts in Cenozoic Basalts along Eastern China and Its Implications for Crust-Mantle Nteraction beneath Subcontinental Lithosphere Mantle(Dissertation). Zhejiang University, Hangzhou (in Chinese with English abstract). Sun, W. J., Kennett, B. L. N., 2016. Uppermost Mantle Structure beneath Eastern China and its Surroundings from Pn and Sn Tomography. Geophysical Research Letters, 43(7): 3143-3149. https://doi.org/10.1002/2016gl068618 Shi, W. J., Wei, J. H., Tan, J., et al., 2014. Late Early Cretaceous Gold Mineralization in Tan-Lu Fault Zone: Evidence from Rb-Sr Isotopic Dating of Pyrite from Longquanzhan Gold Deposit. Earth Science, 39(3): 325-340(in Chinese with English Abstract). Wang, F., Wang, Q., Lin, W., et al., 2014. 40Ar/39Ar Geochronology of the North China and Yangtze Cratons: New Constraints on Mesozoic Cooling and Cratonic Destruction Under East Asia. Journal of Geophysical Research Solid Earth, 119(4): 3700-3721. https://doi.org/org/10.1002/2013JB010708 Wang, W., Zhu, G., Zhang. S., et al., 2017. Detrital Zircon Evidence for Depositional Time and Provenance of Mesozoic Sediments in the Hefei Basin. Geol. Rev. , 63: 956-977 (in Chinese with English Abstract). Wei, Z. G., Chu, R. S., Chen, L., et al., 2020. Crustal Structure in the Middle-Southern Segments of the Tanlu Fault Zone and Adjacent Regions Constrained by Multifrequency Receiver Function and Surface Wave Data. Physics of the Earth and Planetary Interiors, 301(4): 106470. https://doi.org/10.1016/j.pepi.2020.106470 Xu X., Gao S. L., Wang X. J., et al., 2015. Cenozoic Deformation of Extensional Tectonics in the Lower Yangtze Region and Its Tectonic Significance. Earth Science, 40(12): 1968-1986(in Chinese with English Abstract). Zhang, Y. Q., Dong, S. W., 2008. Mesozoic Tectonic Evolution History of the Tan-Lu Fault Zone, China: Advances and new under standing. Geological Bulletin China, 27(9): 1371-1390 (in Chinese with English Abstract). Zhang, Y. P., Wang, B. S., Xu, T., et al., 2020. Three-Dimensional Crustal Vp and Vs Structures beneath the Southern Segment of the Tan-Lu Fault Revealed by Active Source and Earthquake Data. Geophysical Journal International, 223(3): 2148-2165. https://doi.org/10.1093/gji/ggaa314 Zhao, F. Y., Jiang, S. H., An, S., et al., 2020. Correlation of Lithospheric "De-Rooting" of the Sulu-Dabie Orogen to Tectonic-Sedimentary Process of the Hefei Basin: Constraints from Mesozoic Coupling of Basin and Orogen. Geological Journal, 55(1): 694-711. https://doi.org/10.1002/gj.3431 Zhao, L., Allen, R. M., Zheng, T. Y., et al., 2012. High-Resolution Body Wave Tomography Models of the Upper Mantle beneath Eastern China and the Adjacent Areas. Geochemistry, Geophysics, Geosystems, 13(6): Q06007. https://doi.org/10.1029/2012gc004119 Zheng, H. W., Li, T. D., Su G., 2020a. Tomography Images of Crustal and Upper Mantle Structure beneath Sulu Orogenic Belt. Earth Science, 45(7): 2485-2494(in Chinese with English abstract). Zheng, H. W., Li, T. D., He R. Z., 2020b. Southeastward Subduction of North China Block: Insights from Tomographyic Image of the Middle and Lower Yangtze River Metallogenic Belt. Earth Science, 45(11): 4187-4197(in Chinese with English Abstract). Zheng, Y. F., Xu, Z., Zhao, Z. F., et al., 2018. Mesozoic Mafic Magmatism in North China: Implications for Thinning and Destruction of Cratonic Lithosphere. Science China Earth Sciences, 61: 353-385(in Chinese). Zhu, G., Jiang, D. Z., Zhang, B. L., et al., 2012. Destruction of the Eastern North China Craton in a Backarc Setting: Evidence from Crustal Deformation Kinematics. Gondwana Research, 22(1): 86-103. https://doi.org/10.1016/j.gr.2011.08.005 Zhu, G., Liu, C., Gu, C. C., et al., 2018. Oceanic Plate Subduction History in the Western Pacific Ocean: Constraint From Late Mesozoic Evolution of the Tan-Lu Fault Zone. Science China Earth Sciences, 61: 386-405(in Chinese). Zhu, G., Wang, Y. S., Wang, W., et al., 2017. An Accreted Micro-Continent in the North of the Dabie Orogen, East China: Evidence from Detrital Zircon Dating. Tectonophysics, 698(2): 47-64. https://doi.org/10.1016/j.tecto.2017.01.004 Zhu, L. P., Kanamori, H., 2000. Moho Depth Variation in Southern California from Teleseismic Receiver Functions. Journal of Geophysical Research: Solid Earth, 105(B2): 2969-2980. https://doi.org/10.1029/1999jb900322 Zhu, R. X., Xu, Y. G. , Zhu, G., et al., 2012. Destruction of the North China Craton. Sci China Earth Sci., 42(8), 1135-1159(in Chinese). 顾勤平, 丁志峰, 康清清, 等, 2020. 郯庐断裂带中南段及邻区基于背景噪声的瑞利波群速度层析成像. 地球物理学报, 63(4): 1505-1522. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX202004020.htm 李婷婷, 刘利, 范文华, 等, 2020. 基于远震p波接收函数研究江苏地区地壳厚度和泊松比. 地震研究, 196(4): 82-90. https://www.cnki.com.cn/Article/CJFDTOTAL-DZYJ202004011.htm 嵇少丞, 王茜, 杨文采, 2009. 华北克拉通泊松比与地壳厚度的关系及其大地构造意义. 地质学报, 83(3): 324—330. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200903001.htm 邱志力, 2009. 中国东部新生代碱性玄武岩有关锆石巨晶地球化学和Hf同位素: 成因及其与大陆岩石圈壳-幔作用研究(博士毕业论文). 杭州: 浙江大学, 156-160. 石文杰, 魏俊浩, 谭俊, 等, 2014. 郯庐断裂带晚白垩世金成矿作用: 来自龙泉站金矿床黄铁矿Rb-Sr年代学证据. 地球科学, 39(3): 325-340. doi: 10.3799/dqkx.2014.031 牛漫兰, 朱光, 谢成龙, 等, 2008. 郯庐断裂带张八岭隆起南段花岗岩LA-ICP MS锆石U-Pb年龄及其构造意义. 岩石学报, 24(08): 1839-1847. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201502018.htm 牛漫兰, 朱光, 谢成龙, 等, 2010. 郯庐断裂带张八岭隆起南段晚中生代侵入岩地球化学及其对岩石圈. 岩石学报, 26(9): 2783-2804. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201009022.htm 徐曦, 高顺莉, 王兴建, 等, 2015. 下扬子区新生代伸展构造变形及其区域构造意义. 地球科学, 40(12): 1968-1986. doi: 10.3799/dqkx.2015.177 王薇, 朱光, 张帅, 等, 2017. 合肥盆地中生代地层时代与源区的碎屑锆石证据. 地质论评, 63(4): 956-977. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP201704011.htm 张岳桥, 董树文, 2008. 郯庐断裂带中生代构造演化史: 进展与新认识. 地质通报, 27(9): 1371-1390. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD200809004.htm 郑洪伟, 李廷栋, 苏刚, 2020a. 苏鲁造山带地壳上地幔结构层析成像研究. 地球科学, 45(7): 2485-2494. doi: 10.3799/dqkx.2020.052 郑洪伟, 李廷栋, 贺日政, 2020b. 长江中下游成矿带深部结构层析成像图像揭示华北板块的东南向俯冲. 地球科学, 45(11): 4187-4197. doi: 10.3799/dqkx.2020.053 郑永飞, 徐峥, 赵子福, 等, 2018. 华北中生代镁铁质岩浆作用与克拉通减薄和破坏. 中国科学: 地球科学, 48(4): 379-414. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201804002.htm 朱光, 刘程, 顾承串, 等, 2018. 郯庐断裂带晚中生代演化对西太平洋俯冲历史的指示. 中国科学: 地球科学, 48: 415-435. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201804003.htm 朱日祥, 徐义刚, 朱光, 等, 2012. 华北克拉通破坏. 中国科学: 地球科学, 42(8): 1135-1159. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK202302001.htm -
点击查看大图
图(5) / 表(1)
计量
- 文章访问数: 385
- HTML全文浏览量: 470
- PDF下载量: 62
- 被引次数: 0
