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地球与行星物理

ISSN  2096-3955

CN  10-1502/P

Citation: Biao Guo, JiuHui Chen, QiYuan Liu, ShunCheng Li, 2019: Crustal structure beneath the Qilian Orogen Zone from multiscale seismic tomography, Earth and Planetary Physics, 3, 232-242. doi: 10.26464/epp2019025

2019, 3(3): 232-242. doi: 10.26464/epp2019025

SOLID EARTH: SEISMOLOGY

Crustal structure beneath the Qilian Orogen Zone from multiscale seismic tomography

State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China

Corresponding author: Biao Guo, guobiao@ies.ac.cn

Received Date: 2018-11-22
Web Publishing Date: 2019-05-01

The Qilian Orogen Zone (QOZ), located in the north margin of the Tibetan Plateau, is the key area for understanding the deformation and dynamics process of Tibet. Numerous geological and geophysical studies have been carried out on the mechanics of the Tibetan Plateau deformation and uplift; however, the detailed structure and deformation style of the Qilian Orogen Zone have remained uncertain due to poor geophysical data coverage and limited resolution power of inversion algorithms. In this study, we analyze the P-wave velocity structure beneath the Qilian Orogen Zone, obtained by applying multi-scale seismic tomography technique to P-wave arrival time data recorded by regional seismic networks. The seismic tomography algorithm used in this study employs sparsity constraints on the wavelet representation of the velocity model via L1-norm regularization. This algorithm can deal efficiently with uneven-sampled volumes, and can obtain multi-scale images of the velocity model. Our results can be summarized as follows: (1) The crustal velocity structure is strongly inhomogeneous and consistent with the surface geological setting. Significant low-velocity anomalies exist in the crust of northeastern Tibet, and slight high-velocity anomalies exist beneath the Qaidam Basin and Alxa terrane. (2) The Qilian Orogen Zone can be divided into two main parts by the Laji Shan Faults: the northwestern part with a low-velocity feature, and the southeastern part with a high-velocity feature at the upper and middle crust. (3) Our tomographic images suggest that northwestern and southeastern Qilian Orogen Zones have undergone different tectonic processes. In the northwest Qilian Orogen Zone, the deformation and growth of the Northern Tibetan Plateau has extended to the Heli Shan and Beida Shan region by northward over-thrusting at the upper crust and thickening in the lower crust. We speculate that in the southeast Qilian Orogen Zone the deformation and growth of the Northern Tibet Plateau were of strike-slip style at the upper crust; in the lower crust, the evidence suggests ductile shear extrusion style and active frontage extension to the Alxa terrane. (4) The multi-scale seismic tomography technique provides multi-scale analysis and sparse constraints, which has allowed to us obtain stable, high-resolution results.

Key words: Qilian Orogen Zone; crustal structure; multi-scale seismic tomography

Bao, X. W., Song, X. D., Xu, M. J., Wang, L. S., Sun, X. X., Mi, N., Yu, D. Y., and Li, H. (2013). Crust and upper mantle structure of the North China Craton and the NE Tibetan Plateau and its tectonic implications. Earth Planet. Sci. Lett., 369–370, 129–137. https://doi.org/10.1016/j.jpgl.2013.03.015

Becker, T. W., Lebedev, S., and Long, M. D. (2012). On the relationship between azimuthal anisotropy from shear wave splitting and surface wave tomography. J. Geophys. Res., 117(B1), B01306. https://doi.org/10.1029/2011JB008705

Burchfiel, B. C., Molnar, P., Zhao, Z. Y., Liang, K. Y., Wang, S. J., Huang, M. M., Sutter, J. (1989). Geology of the Ulugh Muztagh area, northern Tibet. Earth Planet. Sci. Lett., 94(1-2), 57–70. https://doi.org/10.1016/0012-821X(89)90083-6

Burchfiel, B. C., Zhang, P. Z., Wang, Y. P., Zhang, W. Q., Song, F. M., Deng, Q. D., Molnar, P., and Royden, L. (1991). Geology of the Haiyuan fault zone, Ningxia-Hui Autonomous Region, China, and its relation to the evolution of the northeastern margin of the Tibetan Plateau. Tectonics, 10(6), 1091–1110. https://doi.org/10.1029/90TC02685

Chang, L. J., Ding, Z. F., Wang, C. Y., and Flesch, L. M. (2017). Vertical coherence of deformation in lithosphere in the NE margin of the Tibetan plateau using GPS and shear-wave splitting data. Tectonophysics, 699, 93–101. https://doi.org/10.1016/j.tecto.2017.01.025

Chen, J. H., Liu, Q. Y., Li, S. C., Guo, B., and Lai, Y. G. (2005). Crust and upper mantle S-wave velocity structure across Northeastern Tibetan Plateau and Ordos block. Chinese J. Geophys., 48(2), 369–379. https://doi.org/10.1002/cjg2.663

Chen, M., Niu, F. L., Tromp, J., Lenardic, A., Lee, C. T. A., Cao, W. R., and Ribeiro, J. (2017). Lithospheric foundering and underthrusting imaged beneath Tibet. Nat. Commun., 8, 15659. https://doi.org/10.1038/ncomms15659

Cheng, B., Cheng, S. Y., Zhang, G. W., and Zhao, D. P. (2014). Seismic structure of the Helan–Liupan–Ordos western margin tectonic belt in North-Central China and its geodynamic implications. J. Asian Earth Sci., 87, 141–156. https://doi.org/10.1016/j.jseaes.2014.01.006

Cheng, F., Jolivet, M., Dupont-Nivet, G., Wang, L., Yu, X. J., and Guo, Z. J. (2015). Lateral extrusion along the Altyn Tagh Fault, Qilian Shan (NE Tibet): insight from a 3D crustal budget. Terra Nova, 27(6), 416–425. https://doi.org/10.1111/ter.12173

Chiao, L. Y., and Kuo, B. Y. (2001). Multiscale seismic tomography. Geophys. J. Int., 145(2), 517–527. https://doi.org/10.1046/j.0956-540x.2001.01403.x

Clark, M. K., and Royden, L. H. (2000). Topographic ooze: Building the eastern margin of Tibet by lower crustal flow. Geology, 28(8), 703–706. https://doi.org/10.1130/0091-7613(2000)28<703:TOBTEM>2.0.CO;2

Daubechies, I. (1992). Ten Lectures on Wavelets. Philadelphia: Society for Industrial and Applied Mathematics.222

Duvall, A. R., Clark, M. K., van der Pluijm, B. A., and Li, C. Y. (2011). Direct dating of Eocene reverse faulting in northeastern Tibet using Ar-dating of fault clays and low-temperature thermochronometry. Earth Planet. Sci. Lett., 304(3–4), 520–526. https://doi.org/10.1016/j.jpgl.2011.02.028

England, P., and Houseman, G. (1986). Finite strain calculations of continental deformation: 2. Comparison with the India-Asia collision zone. J. Geophys. Res. Solid Earth, 91(B3), 3664–3676. https://doi.org/10.1029/JB091iB03p03664

Feng, M., Kumar, P., Mechie, J., Zhao, W., Kind, R., Su, H., Xue, G., Shi, D., and Qian, H. (2014). Structure of the crust and mantle down to 700 km depth beneath the East Qaidam basin and Qilian Shan from P and S receiver functions. Geophys. J. Int., 199(3), 1416–1429. https://doi.org/10.1093/gji/ggu335

Figueiredo, M. A. T., Nowak, R. D., and Wright, S. J. (2007). Gradient projection for sparse reconstruction: application to compressed sensing and other inverse problems. IEEE J. Sel. Top. Signal Process., 1(4), 586–597. https://doi.org/10.1109/JSTSP.2007.910281

Gan, W. J., Zhang, P. Z., Shen, Z. K., Niu, Z. J., Wang, M., Wan, Y. G., Zhou, D. M., and Cheng, J. (2007). Present-day crustal motion within the Tibetan Plateau inferred from GPS measurements. J. Geophys. Res. Solid Earth, 112(B8), B08416. https://doi.org/10.1029/2005JB004120

Gao, X., Gao, B., Chen, J. H., Liu, Q. Y., Li, S. C., and Li, Y. (2018). Rebuilding of the lithosphere beneath the western margin of Ordos: Evidence from multiscale seismic tomography. Chinese J. Geophys. (in Chinese) , 61(7), 2736–2749. https://doi.org/10.6038/cjg2018L0319

Gehrels, G., Kapp, P., DeCelles, P., Pullen, A., Blakey, R., Weislogel, A., Ding, L., Guynn, J., Martin, A., … Yin, A. (2011). Detrital zircon geochronology of pre-Tertiary strata in the Tibetan-Himalayan orogen. Tectonics, 30(5), TC5016. https://doi.org/10.1029/2011tc002868

Gehrels, G. E., Yin, A., and Wang, X. F. (2003). Detrital-zircon geochronology of the northeastern Tibetan plateau. Geol. Soc. Am. Bull., 115(7), 881–896. https://doi.org/10.1130/0016-7606(2003)115<0881:DGOTNT>2.0.CO;2

Guo, B., Liu, Q. Y., Chen, J. H., Zhao, D. P., Li, S. C., and Lai, Y. G. (2004). Seismic tomographic imaging of the crust and upper mantle beneath the Northeastern edge of the Qinghai-Xizang plateau and the Ordos area. Chinese J. Geophys. (in Chinese) , 47(5), 790–797. https://doi.org/10.3321/j.issn:0001-5733.2004.05.009

Guo, X. Y., Gao, R., Li, S. Z., Xu, X., Huang, X. F., Wang, H. Y., Li, W. H., Zhao, S. J., and Li, X. Y. (2016). Lithospheric architecture and deformation of NE Tibet: New insights on the interplay of regional tectonic processes. Earth Planet. Sci. Lett., 449, 89–95. https://doi.org/10.1016/j.jpgl.2016.05.045

Huang, Z. X., Su, W., Peng, Y. J., Zheng, Y. J., and Li, H. Y. (2003). Rayleigh wave tomography of China and adjacent regions. J. Geophys. Res., 108(B2), 2073. https://doi.org/10.1029/2001JB001696

Kissling, E., Ellsworth, W. L., Eberhart-Phillips, D., and Kradolfer, U. (1994). Initial reference models in local earthquake tomography. J. Geophys. Res. Solid Earth, 99(B10), 19635–19646. https://doi.org/10.1029/93JB03138

Laske, G., Masters., G., Ma, Z. T., and Pasyanos, M. (2013). Update on CRUST1.0 - A 1-degree Global Model of Earth's Crust. In Geophysical Research Abstracts, vol. 15, Abstract EGU2013-2658. Vienna: EGU.222

Li, C., van der Hilst, D. R., Meltzer, A. S., and Engdahl, E. R. (2008). Subduction of the Indian lithosphere beneath the Tibetan Plateau and Burma. Earth Planet. Sci. Lett., 274(1–2), 157–168. https://doi.org/10.1016/j.jpgl.2008.07.016

Li, H. L., Fang, J., and Braitenberg, C. (2017). Lithosphere density structure beneath the eastern margin of the Tibetan Plateau and its surrounding areas derived from GOCE gradients data. Geod. Geodyn., 8(3), 147–154. https://doi.org/10.1016/j.geog.2017.02.007

Li, H. Y., Shen, Y, Huang, Z. X., Li, X. F., Gong, M., Shi, D. N., Sandvol, E., and Li, A. B. (2014). The distribution of the mid-to-lower crustal low-velocity zone beneath the northeastern Tibetan Plateau revealed from ambient noise tomography. J. Geophys. Res. Solid Earth, 119(3), 1954–1970. https://doi.org/10.1002/2013JB010374

Li, L., Li, A. B., Shen, Y., Sandvol, E. A., Shi, D. N., Li, H. Y., and Li, X. F. (2013). Shear wave structure in the northeastern Tibetan Plateau from Rayleigh wave tomography. J. Geophys. Res. Solid Earth, 118(8), 4170–4183. https://doi.org/10.1002/jgrb.50292

Li, Z., Guo, B., Chen, J. H., Liu, Q. Y. (2015). Parameterization in seismic tomography. Progress in Geophysics (in Chinese) , 30(4), 1616–1624. https://doi.org/10.6038/pg20150416

Liang, S. M., Gan, W. J., Shen, C. Z., Xiao, G. R., Liu, J., Chen, W. T., Ding, X. G., and Zhou, D. M. (2013). Three-dimensional velocity field of present-day crustal motion of the Tibetan Plateau derived from GPS measurements. J. Geophys. Res. Solid Earth, 118(10), 5722–5732. https://doi.org/10.1002/2013JB010503

Métivier, F., Gaudemer, Y., Tapponnier, P., and Meyer, B. (1998). Northeastward growth of the Tibet plateau deduced from balanced reconstruction of two depositional areas: The Qaidam and Hexi Corridor basins, China. Tectonics, 17(6), 823–842. https://doi.org/10.1029/98TC02764

Meyer, B., Tapponnier, P., Bourjot, L., Métivier, F., Gaudemer, Y., Peltzer, G., Guo, S. M., and Chen, Z. T. (1998). Crustal thickening in Gansu-Qinghai, lithospheric mantle subduction, and oblique, strike-slip controlled growth of the Tibet plateau. Geophys. J. Int., 135(1), 1–47. https://doi.org/10.1046/j.1365-246X.1998.00567.x

Rawlinson, N., and Sambridge, M. (2004). Wave front evolution in strongly heterogeneous layered media using the fast marching method. Geophys. J. Int., 156(3), 631–647. https://doi.org/10.1111/j.1365-246X.2004.02153.x

Royden, L.H., Burchfiel B. C., King R. W., Wang E., Chen Z. L., Shen F., Liu Y. P. (1997). Surface deformation and lower crustal flow in Eastern Tibet. Science, 276, 788–790. https://doi.org/10.1126/science.276.5313.788

Shi, J. Y., Shi, D. N., Shen, Y., Zhao, W. J., Xue, G. Q., Su, H. P., and Song, Y. (2017). Growth of the northeastern margin of the Tibetan Plateau by squeezing up of the crust at the boundaries. Sci. Rep., 7, 10591. https://doi.org/10.1038/s41598-017-09640-0

Song, S. G., Niu, Y. L., Li, S., and Xia, X. H. (2013). Tectonics of the North Qilian orogen, NW China. Gondw. Res., 23(4), 1378–1401. https://doi.org/10.1016/j.gr.2012.02.004

Sun, W. J., Li, S. Z., Liu, X., Santosh, M., Zhao, S. J., Guo, L. L., Cao, H. H., Yu, S., Dai, L. M., and Zhang, Y. (2015). Deep structures and surface boundaries among Proto-Tethyan micro-blocks: Constraints from seismic tomography and aeromagnetic anomalies in the Central China Orogen. Tectonophysics, 659, 109–121. https://doi.org/10.1016/j.tecto.2015.07.033

Tapponnier, P., Xu, Z. Q., Roger, F., Meyer, B., Arnaud, N., Arnaud, G., and Yang, J. S. (2001). Oblique stepwise rise and growth of the Tibet Plateau. Science, 294(5547), 1671–1677. https://doi.org/10.1126/science.105978

Tapponnier P., Peltzer G., Le Dain A. Y., Armijo R., Cobbold P. (1982). Propagating extrusion tectonics in Asia; new insights from simple experiments with plasticine. Geology, 10, 611–616.

Tian, X. B., and Zhang, Z. J. (2013). Bulk crustal properties in NE Tibet and their implications for deformation model. Gondw Res., 24(2), 548–559. https://doi.org/10.1016/j.gr.2012.12.024

Wang, P., and Wang, Z. G. (1997). Division of the Alxa Block and its attribution. Earthquake (in Chinese) , 17(1), 103–112.

Wang, Q., Gao, Y., Shi, Y. T., and Wu, J. (2013). Seismic anisotropy in the uppermost mantle beneath the northeastern margin of Qinghai-Tibet plateau: evidence from shear wave splitting of SKS, PKS and SKKS. Chinese J. Geophys. (in Chinese) , 56(3), 892–905. https://doi.org/10.6038/cjg20130318

Wang, Q., Niu, F. L., Gao, Y., and Chen, Y. T. (2016). Crustal structure and deformation beneath the NE margin of the Tibetan plateau constrained by teleseismic receiver function data. Geophys. J. Int., 204(1), 167–179. https://doi.org/10.1093/gji/ggv420

Wang, Y. (2001). Heat flow pattern and lateral variations of lithosphere strength in China mainland: Constraints on active deformation. Phys. Earth Planet. Inter., 126(3–4), 121–146. https://doi.org/10.1016/S0031-9201(01)00251-5

Wang, Y. D., Zheng, J. J., Zhang, W. L., Li, S. Y., Liu, X. W., Yang, X., and Liu, Y. H. (2012). Cenozoic uplift of the Tibetan Plateau: Evidence from the tectonic- sedimentary evolution of the western Qaidam Basin. Geosci. Front., 3(2), 175–187. https://doi.org/10.1016/j.gsf.2011.11.005

Wu, C., Yin, A., Zuza, V. A., Zhang, J. Y., Liu, W. C., and Ding, L. (2016). Pre-Cenozoic geologic history of the central and northern Tibetan Plateau and the role of Wilson cycles in constructing the Tethyan orogenic system. Lithosphere, 8(3), 254–292. https://doi.org/10.1130/L494.1

Wu, C. L., Xu, T., Badal, J., Wu, Z. B., and Teng, J. W. (2015). Seismic anisotropy across the Kunlun fault and their implications for northward transforming lithospheric deformation in northeastern Tibet. Tectonophysics, 659, 91–101. https://doi.org/10.1016/j.tecto.2015.07.030

Wu, Y. B., and Zheng, Y. F. (2013). Tectonic evolution of a composite collision orogen: an overview on the Qinling–Tongbai–Hong’an–Dabie–Sulu orogenic belt in central China. Gondw. Res., 23(4), 1402–1428. https://doi.org/10.1016/j.gr.2012.09.007

Xiao, W. J., Windley, B. F., Yong, Y., Yan, Z., Yuan, C., Liu, C. Z., and Li, J. L. (2009). Early Paleozoic to Devonian multiple-accretionary model for the Qilian Shan, NW China. J. Asian Earth Sci., 35(3–4), 323–333. https://doi.org/10.1016/j.jseaes.2008.10.001

Xiong, S. Q., Yang, H., Ding, Y. Y., Li, Z. K., and Li, W. (2016). Distribution of igneous rocks in China revealed by aeromagnetic data. J. Asian Earth Sci., 129, 231–242. https://doi.org/10.1016/j.Jseaes.2016.08.016

Yi, G. X., Yao, H. J., Zhu, J. S., and van der Hilst, R. D. (2008). Rayleigh-wave phase velocity distribution in China continent and its adjacent regions. Chinese J. Geophys., 51(2), 265–274. https://doi.org/10.1002/cjg2.1218

Yin, A., and Harrison, T. M. (2000). Geologic evolution of the Himalayan-Tibetan orogen. Annu. Rev. Earth Planet. Sci., 28, 211–280. https://doi.org/10.1146/annurev.earth.28.1.211

Yue, H., Chen, J. J., Sandvol, E., Ni, J., Hearn, T., Zhou, S. Y., Feng, Y. G., Ge, Z. X., Trujillo, A., … Liu, Z. (2012). Lithospheric and upper mantle structure of the northeastern Tibetan Plateau. J. Geophys. Res. Solid Earth, 117(B5), B05307. https://doi.org/10.1029/2011JB008545

Zhang, G. B., Song, S. G., Zhang, L. F., and Niu, Y. L. (2008). The subducted oceanic crust within continental-type UHP metamorphic belt in the North Qaidam, NW China: Evidence from petrology, geochemistry and geochronology. Lithos, 104(1–4), 99–118. https://doi.org/10.1016/j.lithos.2007.12.001

Zhang, J., Li, J. Y., Li, Y. F., and Ma, Z. J. (2007). The Cenozoic deformation of the Alxa block in central Asia-Question on the northeastern extension of the Altyn Tagh fault in Cenozoic time. Acta Geol. Sin. (in Chinese) , 81(11), 1481–1497. https://doi.org/10.3321/j.issn:0001-5717.2007.11.003

Zhang, J. X., Yu, S. Y., Li, Y. S., Yu, X. X., Lin, Y. H., and Mao, X. H. (2015). Subduction, accretion and closure of Proto-Tethyan Ocean: Early Paleozoic accretion/collision orogeny in the Altun-Qilian-North Qaidam orogenic system. Acta Petrol. Sin. (in Chinese) , 31(12), 3531–3554.

Zhang, P. Z., Shen, Z. K., Wang, M., Gan, W. J., Bürgmann, R., Molnar, P., Wang, Q., Niu, Z. J., Sun, J. Z., … You, X. Z. (2004). Continuous deformation of the Tibetan Plateau from Global Positioning System data. Geology, 32(9), 809–812. https://doi.org/10.1130/G20554.1

Zhang, Q., Sandvol, E., Ni J., Yang, Y. J., and Chen, Y. J. (2011). Rayleigh wave tomography of the northeastern margin of the Tibetan Plateau. Earth Planet. Sci. Lett., 304(1–2), 103–112. https://doi.org/10.1016/j.jpgl.2011.01.021

Zhang, Z. J., Bai, Z. M., Klemperer, S. L., Tian, X. B., Xu, T., Chen, Y., and Teng, J. W. (2013). Crustal structure across northeastern Tibet from wide-angle seismic profiling: Constraints on the Caledonian Qilian orogeny and its reactivation. Tectonics, 606, 140–159. https://doi.org/10.1016/j.tecto.2013.02.040

Zheng W. J., Zhang P. Z., Ge W. P., Molnar P., Zhang H. P., Yuan D. Y., and Liu J. H. (2013). Late Quaternary slip rate of the South Heli Shan Fault (northern Hexi Corridor, NW China) and its implications for northeastward growth of the Tibetan Plateau. Tectonics, 32, 271–293. https://doi.org/10.1002/tect.20022

Zheng, D., Li, H. Y., Shen, Y., Tan, J., Ouyang, L. B., and Li, X. F. (2016). Crustal and upper mantle structure beneath the northeastern Tibetan Plateau from joint analysis of receiver functions and Rayleigh wave dispersions. Geophys. J. Int., 204(1), 583–590. https://doi.org/10.1093/gji/ggv469

Zou, C. Q., He, R. Z., Duan, Y. H., Wei, Y. H., Liu, Q. X., and Liu, Y. (2017). Deep structure beneath the eastern Altyn Tagh fault and its vicinity derived from teleseismic P-wave tomography. Chinese J. Geophys. (in Chinese) , 60(6), 2279–2290. https://doi.org/10.6038/cjg20170620

Zuza, A. V., Cheng, X. G., and Yin, A. (2016). Testing models of Tibetan Plateau formation with Cenozoic shortening estimates across the Qilian Shan–Nan Shan thrust belt. Geosphere, 12(2), 501–532. https://doi.org/10.1130/GES01254.1

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Crustal structure beneath the Qilian Orogen Zone from multiscale seismic tomography

Biao Guo, JiuHui Chen, QiYuan Liu, ShunCheng Li