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晚中新世龙门山南段及前缘地区盆山体系形成的动力学机制
邵崇建, 颜照坤, 李勇, 聂舟, 任聪, 孙岳
PDF(4195 KB)
PDF(4195 KB)
晚中新世龙门山南段及前缘地区盆山体系形成的动力学机制
Dynamic Mechanism of Formation of Basin-Mountain System in Southern Segment of Longmenshan and Frontal Area in Late Miocene
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新生代龙门山的隆升机制存在上地壳缩短和下地壳流两种端元模式，两种模式会造成四川盆地不同的构造变形响应，形成不同的盆山系统.为了厘定龙门山南段及前缘地区盆山系统的构造变形特征及其动力学指示意义，利用低温热年代学技术（AFT和AHe）对龙门山南段前缘地区乐地1井7个砂岩样品进行了分析，约束该地区的剥露特征.结果表明，龙门山南段前缘地区中新世（约21 Ma）以来浅部地层经历了约10~11 Ma的快速剥露阶段（约500~700 m/Ma），与前人龙门山南段揭露的快速剥露时间一致.结合区域地质资料，认为约10~11 Ma龙门山南段向南东的逆冲推覆作用，导致构造应力通过四川盆地西南部多层滑脱层向盆地传递，造成龙门山前缘地区大范围构造变形及快速剥露，该认识支持龙门山上地壳缩短的隆升机制.
The uplift mechanism of the Cenozoic Longmenshan has two endmember modes: upper crustal shortening and lower crustal flow. The two modes will cause different tectonic deformation responses in the Sichuan basin and form different basin-mountain systems. In order to determine the tectonic deformation characteristics of the basin-mountain system in the southern Longmenshan and the frontal area and its dynamic indicative significance, seven sandstone samples from Well Ledi 1 in the southern Longmenshan frontal area were analyzed by low-temperature thermochronology (AFT and AHe) to constrain the exhumation characteristics of the front area. The results show that the shallow strata in the frontal area of the southern Longmenshan have experienced a rapid exhumation stage (~500 to 700 m/Ma) of ~10 to 11 Ma since the Miocene (~21 Ma). This rapid exhumation stage is synchronized with the rapid exhumation time revealed by the predecessors in the southern Longmenshan. Combined with regional geological data, it is believed that the thrust and nappe from the southern Longmenshan to the southeast at ~10 to 11 Ma, caused the tectonic stress to be transferred to the basin through the multi-layered detachment layers in the southwestern Sichuan basin, resulting in large-scale tectonic deformation and rapid exhumation in the front area. This knowledge indicates the uplift mechanism of the southern Longmenshan is the upper crustal shortening model.
龙门山南段前缘地区 / 动力学机制 / 低温热年代学 / 快速剥露 / 地球动力学
frontal area of southern Longmenshan / dynamic mechanism / low temperature thermochronology / rapid exhumation / geodynamics
P541
|
Burchfiel, B. C., Chen, Z. L., Liu, Y. P., et al., 1995. Tectonics of the Longmen Shan and Adjacent Regions, Central China. International Geology Review, 37(8): 661-735. https://doi.org/10.1080/00206819509465424
|
|
Clark, M. K., Bush, J. W. M., Royden, L. H., 2005a. Dynamic Topography Produced by Lower Crustal Flow against Rheological Strength Heterogeneities Bordering the Tibetan Plateau. Geophysical Journal International, 162(2): 575-590. https://doi.org/10.1111/j.1365-246X.2005.02580.x
|
|
Clark, M. K., House, M. A., Royden, L. H., et al., 2005b. Late Cenozoic Uplift of Southeastern Tibet. Geology, 33(6): 525. https://doi.org/10.1130/g21265.1
|
|
Cook, K. L., Royden, L. H., Burchfiel, B. C., et al., 2013. Constraints on Cenozoic Tectonics in the Southwestern Longmen Shan from Low-Temperature Thermochronology. Lithosphere, 5(4): 393-406. https://doi.org/10.1130/l263.1
|
|
Deng, B., Liu, S. G., Enkelmann, E., et al., 2015. Late Miocene Accelerated Exhumation of the Daliang Mountains, Southeastern Margin of the Tibetan Plateau. International Journal of Earth Sciences, 104(4): 1061-1081. https://doi.org/10.1007/s00531-014-1129-z
|
|
Deng, B., Liu, S.G., Wang, G.Z., et al., 2013. Cenozoic Uplift and Exhumation in Southern Sichuan Basin—Evidence from Low-Temperature Thermochronology. Chinese Journal of Geophysics, 56(6): 1958-1973 (in Chinese with English abstract).
|
|
Farley, K. A., 2002. (U-Th)/He Dating: Techniques, Calibrations, and Applications. Reviews in Mineralogy and Geochemistry, 47(1): 819-844. https://doi.org/10.2138/rmg.2002.47.18
|
|
Flowers, R. M., 2009. Exploiting Radiation Damage Control on Apatite (U-Th)/He Dates in Cratonic Regions. Earth and Planetary Science Letters, 277(1-2): 148-155. https://doi.org/10.1016/j.epsl.2008.10.005
|
|
Galbraith, R. F., 1981. On Statistical Models for Fission Track Counts. Journal of the International Association for Mathematical Geology, 13(6): 471-478. https://doi.org/10.1007/BF01034498
|
|
Galbraith, R. F., Laslett, G. M., 1993. Statistical Models for Mixed Fission Track Ages. Nuclear Tracks and Radiation Measurements, 21(4): 459-470. https://doi.org/10.1016/1359-0189(93)90185-c
|
|
Gleadow, A., Harrison, M., Kohn, B., et al., 2015. The Fish Canyon Tuff:A New Look at an Old Low-Temperature Thermochronology Standard. Earth and Planetary Science Letters, 424: 95-108. https://doi.org/10.1016/j.epsl.2015.05.003
|
|
Glotzbach, C., van der Beek, P. A., Spiegel, C., 2011. Episodic Exhumation and Relief Growth in the Mont Blanc Massif, Western Alps from Numerical Modelling of Thermochronology Data. Earth and Planetary Science Letters, 304(3/4): 417-430. https://doi.org/10.1016/j.epsl.2011.02.020
|
|
Godard, V., Pik, R., Lavé, J., et al., 2009. Late Cenozoic Evolution of the Central Longmen Shan, Eastern Tibet: Insight from (U-Th)/He Thermochronometry. Tectonics, 28(5): TC5009. https://doi.org/10.1029/2008tc002407
|
|
Guo, C., Zhang, Z. Y., Wu, L., et al., 2022. Mesozoic-Cenozoic Coupling Process of Tianshan Denudation and Sedimentation in the Northern Margin of the Tarim Basin: Evidence from Low-Temperature Thermochronology(Kuqa River Section, Xinjiang). Earth Science, 47(9): 3417-3430 (in Chinese with English abstract).
|
|
Hubbard, J., Shaw, J. H., 2009. Uplift of the Longmen Shan and Tibetan Plateau, and the 2008 Wenchuan (M =7.9) Earthquake. Nature, 458(7235): 194-197. https://doi.org/10.1038/nature07837
|
|
Laslett, G. M., Green, P. F., Duddy, I. R., et al., 1987. Thermal Annealing of Fission Tracks in Apatite 2. A Quantitative Analysis. Chemical Geology: Isotope Geoscience Section, 65(1): 1-13. https://doi.org/10.1016/0168-9622(87)90057-1
|
|
Li, Z. W., Liu, S. G., Chen, H. D., et al., 2012. Spatial Variation in Meso-Cenozoic Exhumation History of the Longmen Shan Thrust Belt (Eastern Tibetan Plateau) and the Adjacent Western Sichuan Basin: Constraints from Fission Track Thermochronology. Journal of Asian Earth Sciences, 47: 185-203. https://doi.org/10.1016/j.jseaes.2011.10.016
|
|
Li, Z.W., Liu, S.G., Chen, H.D., et al., 2008. Structural Segmentation and Zonation and Differential Deformation across and along the Lomgmen Thrust Belt, West Sichuan, China. Journal of Chengdu University of Technology (Science & Technology Edition), 35(4): 440-454 (in Chinese with English abstract).
|
|
Li, Z. W., Liu, S. G., Lin, J., et al., 2009. Structural Configuration and Its Genetic Mechanism of the West Sichuan Depression in China. Journal of Chengdu University of Technology (Science & Technology Edition), 36(6): 645-653 (in Chinese with English abstract).
|
|
Lin, X., Wu, L., Marc, J., et al., 2022. Apatite (U-Th)/He Thermochronology Evidence for Two Cenozoic Denudation Events in Eastern Part of Sulu Orogenic Belt. Earth Science, 47(4): 1162-1176 (in Chinese with English abstract).
|
|
Liu, S.G., Ma, Y.S., Sun, W., et al., 2008. Studying on the Differences of Sinian Natural Gas Pools between Weiyuan Gas Field and Ziyang Gas-Brone Area, Sichuan Basin. Acta Geologica Sinica, 82(3): 328-337 (in Chinese with English abstract).
|
|
Liu-Zeng, J., Zhang, J. Y., McPhillips, D., et al., 2018. Multiple Episodes of Fast Exhumation since Cretaceous in Southeast Tibet, Revealed by Low-Temperature Thermochronology. Earth and Planetary Science Letters, 490: 62-76. https://doi.org/10.1016/j.epsl.2018.03.011
|
|
Meng, K., Wang, E., Wang, G., 2016. Uplift of the Emei Shan, Western Sichuan Basin: Implication for Eastward Propagation of the Tibetan Plateau in Early Miocene. Journal of Asian Earth Sciences, 115: 29-39. https://doi.org/10.1016/j.jseaes.2015.09.020
|
|
Ouimet, W., Whipple, K., Royden, L., et al., 2010. Regional Incision of the Eastern Margin of the Tibetan Plateau. Lithosphere, 2(1): 50-63. https://doi.org/10.1130/l57.1
|
|
Reiners, P. W., Brandon, M. T., 2006. Using Thermochronology to Understand Orogenic Erosion. Annual Review of Earth and Planetary Sciences, 34: 419-466. https://doi.org/10.1146/annurev.earth.34.031405.125202
|
|
Richardson, N. J., Densmore, A. L., Seward, D., et al., 2008. Extraordinary Denudation in the Sichuan Basin: Insights from Low-Temperature Thermochronology Adjacent to the Eastern Margin of the Tibetan Plateau. Journal of Geophysical Research, 113(B4): B04409. https://doi.org/10.1029/2006jb004739
|
|
Royden, L. H., Burchfiel, B. C., van der Hilst, R. D., 2008. The Geological Evolution of the Tibetan Plateau. Science, 321(5892): 1054-1058. https://doi.org/10.1126/science.1155371
|
|
Shao, C. J., Li, Y., Yan, Z. K., et al., 2019. Differential Strain Transfer, Longmen Shan Thrust Belt, Eastern Tibetan Plateau Margin: Implications for Seismic Hazards. Journal of Asian Earth Sciences, 169: 284-297. https://doi.org/10.1016/j.jseaes.2018.09.005
|
|
Shen, T., Meng, L. F., Chen, W., et al., 2021. Tectonic Activities in Middle and North Sections of Longmenshan Thrust Belt during Late Indosinian: Evidence from Structural Analysis and Detrital Zircon Geochronology. Earth Science, (5): 1728-1736(in Chinese with English abstract).
|
|
Shen, X. M., Tian, Y. T., Zhang, G. H., et al., 2019. Late Miocene Hinterland Crustal Shortening in the Longmen Shan Thrust Belt, the Eastern Margin of the Tibetan Plateau. Journal of Geophysical Research: Solid Earth, 124(11): 11972-11991. https://doi.org/10.1029/2019jb018358
|
|
Shi, H. C., Shi, X. B., Glasmacher, U. A., et al.,2016. The Evolution of Eastern Sichuan Basin, Yangtze Block since Cretaceous: Constraints from Low Temperature Thermochronology. Journal of Asian Earth Sciences, 116: 208-221. https://doi.org/10.1016/j.jseaes.2015.11.008
|
|
Tan, X. B., Lee, Y. H., Chen, W. Y., et al., 2014. Exhumation History and Faulting Activity of the Southern Segment of the Longmen Shan, Eastern Tibet. Journal of Asian Earth Sciences, 81: 91-104. https://doi.org/10.1016/j.jseaes.2013.12.002
|
|
Tian, Y. T., Kohn, B. P., Gleadow, A. J. W., et al., 2013. Constructing the Longmen Shan Eastern Tibetan Plateau Margin: Insights from Low-Temperature Thermochronology. Tectonics, 32(3): 576-592. https://doi.org/10.1002/tect.20043
|
|
Tian, Y. T., Kohn, B. P., Hu, S. B., et al., 2015. Synchronous Fluvial Response to Surface Uplift in the Eastern Tibetan Plateau: Implications for Crustal Dynamics. Geophysical Research Letters, 42(1): 29-35. https://doi.org/10.1002/2014gl062383
|
|
Tian, Y. T., Kohn, B. P., Qiu, N. S., et al., 2018a. Eocene to Miocene Out-of-Sequence Deformation in the Eastern Tibetan Plateau: Insights from Shortening Structures in the Sichuan Basin. Journal of Geophysical Research: Solid Earth, 123(2): 1840-1855. https://doi.org/10.1002/2017jb015049
|
|
Tian, Y. T., Li, R., Tang, Y., et al., 2018b. Thermochronological Constraints on the Late Cenozoic Morphotectonic Evolution of the Min Shan, the Eastern Margin of the Tibetan Plateau. Tectonics, 37(6): 1733-1749. https://doi.org/10.1029/2017tc004868
|
|
Tian, Y. T., Kohn, B. P., Zhu, C. Q., et al., 2012. Post-Orogenic Evolution of the Mesozoic Micang Shan Foreland Basin System, Central China. Basin Research, 24(1): 70-90. https://doi.org/10.1111/j.1365-2117.2011.00516.x
|
|
Wang, E., Kirby, E., Furlong, K. P., et al., 2012. Two-Phase Growth of High Topography in Eastern Tibet during the Cenozoic. Nature Geoscience, 5(9): 640-645. https://doi.org/10.1038/ngeo1538
|
|
Wang, P., Liu, S.F., Gao, T.J., et al., 2012. Cretaceous Transportation of Eastern Sichuan Arcuate Fold Belt in Three Dimensions: Insights from AFT Analysis. Chinese Journal of Geophysics, 55(5): 1662-1673 (in Chinese with English abstract).
|
|
Yan, D. P., Zhou, M. F., Li, S. B., et al., 2011. Structural and Geochronological Constraints on the Mesozoic-Cenozoic Tectonic Evolution of the Longmen Shan Thrust Belt, Eastern Tibetan Plateau. Tectonics, 30(6): TC6005. https://doi.org/10.1029/2011TC002867
|
|
Yang, Z., Shen, C. B., Ratschbacher, L., et al., 2017. Sichuan Basin and Beyond: Eastward Foreland Growth of the Tibetan Plateau from an Integration of Late Cretaceous-Cenozoic Fission Track and (U-Th)/He Ages of the Eastern Tibetan Plateau, Qinling, and Daba Shan. Journal of Geophysical Research: Solid Earth, 122(6): 4712-4740. https://doi.org/10.1002/2016jb013751
|
|
Zhang, B. H., Zhang, J., Qu, J. F., et al., 2021. Lüliangshan: A Mesozoic Basement Involved Fold System in the Central North China Craton. Earth Science, (7): 2423-2448(in Chinese with English abstract).
|
|
Zhang, H. P., Oskin, M. E., Jing, L. Z., et al., 2016. Pulsed Exhumation of Interior Eastern Tibet: Implications for Relief Generation Mechanisms and the Origin of High-Elevation Planation Surfaces. Earth and Planetary Science Letters, 449: 176-185. https://doi.org/10.1016/j.epsl.2016.05.048
|
|
邓宾, 刘树根, 王国芝, 等, 2013. 四川盆地南部地区新生代隆升剥露研究: 低温热年代学证据. 地球物理学报, 56(6): 1958-1973.
|
|
郭超, 张志勇, 吴林, 等, 2022. 中新生代天山剥蚀与塔里木盆地北缘沉积耦合过程: 新疆库车河剖面的低温热年代学证据. 地球科学, 47(9): 3417-3430.
|
|
李智武, 刘树根, 陈洪德, 等, 2008. 龙门山冲断带分段-分带性构造格局及其差异变形特征. 成都理工大学学报(自然科学版), 35(4): 440-454.
|
|
李智武, 刘树根, 林杰, 等, 2009. 川西坳陷构造格局及其成因机制. 成都理工大学学报(自然科学版), 36(6): 645-653.
|
|
林旭, 吴林, MarcJolivet, 等, 2022. 苏鲁造山带东段新生代两阶段剥露事件的磷灰石(U-Th)/He热年代学证据. 地球科学, 47(4): 1162-1176.
|
|
刘树根, 马永生, 孙玮, 等, 2008. 四川盆地威远气田和资阳含气区震旦系油气成藏差异性研究. 地质学报, 82(3): 328-337.
|
|
沈桐, 孟立丰, 陈伟, 等, 2021. 龙门山中北段印支晚期构造活动: 来自构造解析及碎屑锆石年代学的证据. 地球科学, (5): 1728-1736.
|
|
王平, 刘少峰, 郜瑭珺, 等, 2012. 川东弧形带三维构造扩展的AFT记录. 地球物理学报, 55(5): 1662-1673.
|
|
张北航, 张进, 曲军峰, 等, 2021. 吕梁山——华北克拉通中部中生代基底卷入褶皱系统. 地球科学, 46(7): 2423-2448.
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审稿专家提出了宝贵的意见；成都理工大学李智武教授和长安大学于强副教授提供了意见；墨尔本大学的热年代学实验室提供的样品测试服务.
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