The characteristics of crustal structure and seismogenic background of Yangbi MS6.4 earthquake on May 21, 2021 in Yunnan Province, China
-
摘要:
本文基于"中国地震科学台阵探测——南北地震带南段"密集布设的流动地震台阵和川滇区域数字测震台网等共计634个台站所记录的观测资料，先采用地震体波层析成像（TOMO3D）方法反演获得川滇区域的地壳速度结构特征，在此基础上，重点剖析云南漾濞MS6.4地震震区及周边的三维P波速度结构；再采用三维视密度反演方法，获得漾濞震区壳内视密度的横向变化特征，最后综合分析漾濞MS6.4地震震区地壳结构特征与地震活动关系、深部孕震背景等科学问题.研究结果表明：漾濞震区P波速度结构与视密度展布特征在深度和分区特征上均具有较好的联系和可比性，震区三维速度结构和视密度反演结果均表现出明显的横向不均匀分布特征，漾濞MS6.4地震位于高低异常值的过渡带附近，震区南、北两侧速度结构和视密度分布特征各异，综合说明了震区地壳物质存在显著的横向差异.漾濞MS6.4地震序列集中分布在主震的SE侧，并沿着NW-SE向呈条带状与维西—乔后断裂近似平行展布，长约20 km，主震震源深度为8.6 km，序列震源深度优势分布层位在5~15 km，漾濞MS6.4地震序列处于高低速异常过渡带附近，震区壳内介质结构的非均匀分布是控制漾濞地震及其序列展布形态的深部构造因素.我们的研究结果还揭示了漾濞MS6.4地震震区北侧洱源附近存在地壳尺度的低速、低密度异常这一最显著特征，该结果与该部位地表温泉较发育、大地热流值显著偏高等地热分布高度一致，这些均暗示着漾濞地震机制除了与青藏高原东缘深部物质SE向逃逸有关外，可能还与来自上地幔的热异常和深部过程密切相关.
Abstract:We have fully collected the observational data of 634 stations (arrays) including Sichuan-Yunnan Regional Digital Seismic Network and "ChinArray Exploration-Southern Segment of the South-North Seismic Belt", and obtained the crustal velocity structure characteristics in Sichuan-Yunnan region by using body wave tomography method. On this basis, the 3D P-wave velocity structure in and around Yangbi MS6.4 earthquake region is analyzed and studied. Then, the 3D apparent density inversion of gravity data in Yangbi earthquake region and its surrounding area is carried out, and the lateral variation characteristics of apparent density in different depths of the crust are obtained. Finally, the relationship between crustal structure and seismicity, and the background of deep seismogenesis in Yangbi MS6.4 earthquake region are analyzed. The results show that: the P-wave velocity structure and apparent density distribution characteristics of Yangbi earthquake region have good relationship and comparability in depth and zoning characteristics, and the inversion results of 3D velocity structure and apparent density show obvious lateral uneven distribution characteristics. The Yangbi MS6.4 earthquake is located near the transition zone with high and low abnormal values. The distribution characteristics of velocity structure and apparent density are different on the north and south sides of the earthquake region, which indicates that there are significant lateral differences in the crust medium in the earthquake region. The Yangbi MS6.4 earthquake sequence is mainly distributed in the southeast direction of the mainshock, it is a strip distribution in northwest-southeast direction along the Weixi-Qiaohou fault, with a length of about 20 km, and the dominant distribution layer of focal depth is 5~15 km. The Yangbi MS6.4 earthquake and its sequence are located near the transition zone of high and low velocity anomalies. The inhomogeneous distribution of medium structure in the crust of the earthquake region is the deep structural factor controlling the distribution of Yangbi earthquake and its sequence. Our results also reveal the most significant feature of low velocity and low density anomalies near Eryuan, the north side of the Yangbi MS6.4 earthquake region. The results are consistent with the geothermal distribution of the hot springs developed on the surface and the high geothermal flow value of the earth. These suggest that the mechanism of Yangbi earthquake is closely related to the thermal anomaly and deep process from the upper mantle, besides the southeast escape of the material in the eastern margin of the Tibetan Plateau.
-
-
图 1
青藏高原东南缘地形和构造概略图
Figure 1.
Topography and tectonics of the southeastern Tibetan plateau
图 2
滇西漾濞MS6.4震区地震构造背景图
Figure 2.
Seismotectonic setting of the Yangbi MS6.4 earthquake region in western Yunnan
图 3
区域数字测震台站、密集流动地震台(阵)分布和地震事件位置
Figure 3.
Distribution of regional digital seismic stations, dense mobile seismic stations (arrays) and location of seismic events
图 6
不同深度层的P波速度扰动
Figure 6.
The images of P wave velocity disturbance at different depths
图 7
震区不同深度的三维视密度反演图
Figure 7.
The figures of 3D apparent density inversion at different depths
图 8
地震序列平面图、剖面图以及震区速度结构与序列分布关系
Figure 8.
(a) Distributions of epicenter after precise relocation and the (b) A—A′, (c) B—B′, (d) C—C′ profile, and (e) the relationship between velocity structure and sequence distribution in earthquake region
-
Bai D H, Unsworth M J, Meju M A, et al. 2010. Crustal deformation of the eastern Tibetan plateau revealed by magnetotelluric imaging. Nature Geoscience, 3(5):358-362. doi: 10.1038/ngeo830
Bai Z M, Wang C Y. 2003. Tomographic investigation of the upper crustal structure and seismotectonic environments in Yunnan province. Acta Seismologica Sinica (in Chinese), 25(2): 117-127. http://www.cqvip.com/Main/Detail.aspx?id=9013695
Bai Z M, Wang C Y. 2004. Tomography research of the Zhefang-Binchuan and Menglian-Malong wide-angle seismic profiles in Yunnan province. Chinese Journal of Geophysics (in Chinese), 47(2): 257-267. http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQWX200402013.htm
Bao X W, Sun X X, Xu M J, et al. 2015. Two crustal low-velocity channels beneath SE Tibet revealed by joint inversion of Rayleigh wave dispersion and receiver functions. Earth and Planetary Science Letters, 415: 16-24. doi: 10.1016/j.epsl.2015.01.020
Beaumont C, Jamieson R A, Nguyen M H, et al. 2004. Crustal channel flows: 1. Numerical models with applications to the tectonics of the Himalayan-Tibetan orogen. Journal of Geophysical Research: Solid Earth, 109(B6): B06406, doi: 10.1029/2003JB002809.
Becken M, Ritter O, Bedrosian P A, et al. 2011. Correlation between deep fluids, tremor and creep along the central San Andreas fault. Nature, 480(7375): 87-90. doi: 10.1038/nature10609
Cao L M, Xu Y, Wu S G. 2013. Finite difference tomography of the crustal velocity structure in Tengchong, Yunnan province. Chinese Journal of Geophysics (in Chinese), 56(4): 1159-1167, doi: 10.6038/cjg20l30411.
Chang Z F, Zhang Y, Chang H. 2018. New discovery of Holocene activity along the Weixi-Qiaohou fault in southeastern margin of the Tibetan Plateau and its Neotectonic significance. Acta Geologica Sinica (English Edition), 92(6): 2464-2465. http://kns.cnki.net/KCMS/detail/detail.aspx?dbcode=CJFD&filename=DZXW201806038
Chen B W, Wang K Y, Liu W X, et al. 1987. Geotectonics of Nujiang-Lancangjiang-Jinshajiang Area (in Chinese). Beijing: Geological Publishing House.
Chen C C, Chen C S, Shieh C F. 2002. Crustal electrical conductors, crustal fluids and 1999 Chi-Chi, Taiwan, Earthquake. TAO, 13(3): 367-374.
Chen F K, Li Q L, Wang X L, et al. 2006. Zircon age and Sr-Nd-Hf isotopic composition of migmatite in the eastern Tengchong block, western Yunnan. Acta Petrologica Sinica (in Chinese), 22(2): 439-448. http://www.cnki.com.cn/Article/CJFDTotal-YSXB200602016.htm
Chen Y, Zhang Z J, Sun C Q, et al. 2013. Crustal anisotropy from Moho converted Ps wave splitting analysis and geodynamic implications beneath the eastern margin of Tibet and surrounding regions. Gondwana Research, 24(3-4): 946-957. doi: 10.1016/j.gr.2012.04.003
Chen Y Q. 1994. Regional Geology of China (in Chinese). Beijing: Geological Publishing House.
Clark M K, Royden L H. 2000. Topographic ooze: Building the eastern margin of Tibet by lower crustal flow. Geology, 28(8): 703-706. doi: 10.1130/0091-7613(2000)28<703:TOBTEM>2.0.CO;2
Cooper G. 2004. The stable downward continuation of potential field data. Exploration Geophysics, 35(4): 260-265. doi: 10.1071/EG04260
Ding Z F. 1999. The theory and application of local earthquake tomography [Ph. D. thesis] (in Chinese). Beijing: Institute of Geophysics, China Earthquake Administration.
Ding Z F. 2011. China seismic science array exploration-South section of the North South seismic belt. Seismic Science and Technology and International Exchange (in Chinese), (2): 36-39.
Dong M L. 2016. Study of magmatism in Tengchong-Baoshan block, western Yunnan and its tectonic implications [Ph. D. thesis] (in Chinese). Beijing: China University of Geosciences (Beijing).
Fedi M, Florio G. 2002. A stable downward continuation by using the ISVD method. Geophysical Journal International, 151(1): 146-156. doi: 10.1046/j.1365-246X.2002.01767.x
Gao J Y, Li Y H, Xu X M, et al. 2016. P-wave crustal velocity structure and seismicity in Yunnan area. Progress in Geophysics (in Chinese), 31(2): 508-516, doi: 10.6038/pg20160202.
Gold T, Soter S. 1984. Fluid ascent through the solid lithosphere and its relation to earthquakes. Pure and Applied Geophysics, 122(2-4): 492-530. http://gji.oxfordjournals.org/external-ref?access_num=10.1007/BF00874614&link_type=DOI
Hickman S, Sibson R, Bruhn R. 1995. Introduction to special section: Mechanical involvement of fluids in faulting. Journal of Geophysical Research: Solid Earth, 100(B7): 12831-12840. doi: 10.1029/95JB01121
Hu J F, Zhu X G, Xia J Y, et al. 2005. Using surface wave and receiver function to jointly inverse the crust-mantle velocity structure in the West Yunnan area. Chinese Journal of Geophysics (in Chinese), 48(5): 1069-1076. doi: 10.1002/cjg2.750
Hua Y L, Lü Y. 2019. Double differential tomography of the Tengchong volcano and adjacent areas. Chinese Journal of Geophysics (in Chinese), 62(8): 2982-2990, doi: 10.6038/cjg2019M0269.
Huang J L, Zhao D P. 2005. The 3D P-wave velocity structure and strong earthquake pregnant deep tectonic environment of crust in the capital area fine. Chinese Science Bulletin (in Chinese), 50(4): 348-355. doi: 10.1360/csb2005-50-4-348
Huang J L, Zhao D P. 2006. High-resolution mantle tomography of China and surrounding regions. Journal of Geophysical Research: Solid Earth, 111(B9): B09305, doi: 10.1029/2005JB004066.
Huang Z C, Wang P, Xu M J, et al. 2015. Mantle structure and dynamics beneath SE Tibet revealed by new seismic images. Earth and Planetary Science Letters, 411: 100-111. doi: 10.1016/j.epsl.2014.11.040
Italiano F, Martelli M, Martinelli G, et al. 2000. Geochemical evidence of melt intrusions along Lithospheric faults of the Southern Apennines, Italy: Geodynamic and seismogenic implications. Journal of Geophysical Research: Solid Earth, 105(B6): 13569-13578. doi: 10.1029/2000JB900047
Jiang J Z, Li J, Fu H. 2019. Seismicity analysis of the 2016 MS5.0 Yunlong earthquake, Yunnan, China and its tectonic implications. Pure and Applied Geophysics, 176(3): 1225-1241, doi: 10.1007/s00024-018-2067-7.
Lei J S, Zhao D P, Su Y J. 2009a. Insight into the origin of the Tengchong intraplate volcano and seismotectonics in southwest China from local and teleseismic data. Journal of Geophysical Research: Solid Earth, 114(B5): B05302, doi: 10.1029/2008JB005881.
Lei J S, Zhao D P. 2009b. Structural heterogeneity of the Longmenshan fault zone and the mechanism of the 2008 Wenchuan earthquake (MS8.0). Geochemistry, Geophysics, Geosystems, 10(10): 10010, doi: 10.1029/2009GC002590.
Lei J S, Zhao D P. 2016. Teleseismic P-wave tomography and mantle dynamics beneath Eastern Tibet. Geochemistry, Geophysics, Geosystems, 17(5): 1861-1884. doi: 10.1002/2016GC006262
Lei J S, Zhao D P, Xu X W, et al. 2019. Is there a big mantle wedge under eastern Tibet?. Physics of the Earth and Planetary Interiors, 292: 100-113. doi: 10.1016/j.pepi.2019.04.005
Lei X L, Wang Z W, Ma S L, et al. 2021. A preliminary study on the characteristics and mechanism of the May 2021 MS6.4, Yangbi earthquake sequence, Yunnan, China. Acta Seismologica Sinica (in Chinese), 43(3): 261-286, doi: 10.11939/jass.20210100.
Li D H, Ding Z F, Wu P P, et al. 2015. The deep seismogenic environment of the southeastern section of the Xianshuihe fault zone and the 2014 Kangding MS6.3 earthquake. Chinese Journal of Geophysics (in Chinese), 58(6): 1941-1953, doi: 10.6038/cjg20150610.
Li D H. 2016. The deep structure and seismogenic environment of potential risk areas of strong earthquakes in Sichuan-Yunnan border area [Ph. D. thesis] (in Chinese). Beijing: Institute of Geophysics, China Earthquake Administration.
Li D H, Ding Z F, Wu P P, et al. 2019. Deep structure of the Zhaotong and Lianfeng fault zones in the eastern segment of the Sichuan-Yunnan border and the 2014 Ludian MS6.5 earthquake. Chinese Journal of Geophysics (in Chinese), 62(12): 4571-4587, doi: 10.6038/cjg2019M0450.
Li Q L, Wang Y, Zhou Y Y, et al. 2019. Geothermal anomalies in the Jianchuan-Deqin region: Constraints on the northwest boundary of Sichuan-Yunnan rhombic block and seismic activity. Bulletin of Mineralogy, Petrology and Geochemistry (in Chinese), 38(1): 90-102. http://en.cnki.com.cn/Article_en/CJFDTotal-KYDH201901010.htm
Li W J, Shao Z G, Wen X Z, et al. 2016. Deep structure derived from the Mouding-Shangri-La magnetotelluric profile in western Yunnan Province. Chinese Journal of Geophysics (in Chinese), 59(1): 229-239, doi: 10.6038/cjg20160119.
Li Y H, Wu Q J, Tian X B, et al. 2009. Crustal structure in the Yunnan region determined by modeling receiver functions. Chinese Journal of Geophysics (in Chinese), 52(1): 67-80. http://www.researchgate.net/publication/299077714_Crustal_structure_in_the_Yunnan_region_determined_by_modeling_receiver_functions
Li Y H, Pan J T, Wu Q J, et al. 2014. Crustal and uppermost mantle structure of SE Tibetan plateau from Rayleigh-wave group-velocity measurements. Earthquake Science, 27(4): 411-419. doi: 10.1007/s11589-014-0090-z
Liu Q Y, Van Der Hilst R D, Li Y, et al. 2014. Eastward expansion of the Tibetan Plateau by crustal flow and strain partitioning across faults. Nature Geoscience, 7(5): 361-365. doi: 10.1038/ngeo2130
Long F, Qi Y P, Yi G X, et al. 2021. Relocation of the MS6.4 Yangbi earthquake sequence on May 21, 2021 in Yunnan Province and its seismogenic structure analysis. Chinese Journal of Geophysics (in Chinese), 64(8): 2631-2646, doi: 10.6038/cjg2021O0526.
Lou H, Wang C Y, Huangfu G, et al. 2002. Three-dimensional seismic velocity tomography of the upper crust in Tengchong volcanic area, Yunnan province. Acta Seismologica Sinica (in Chinese), 24(3): 243-251. http://d.wanfangdata.com.cn/Periodical_dizhen-e200203003.aspx
Luo S, Yu C Q, Zhang G, et al. 2020. Deep electrical resistivity structure of the Sanjiang Area, western Yunnan: An example of the Fugong-Qiaojia profile. Chinese Journal of Geophysics (in Chinese), 63(3): 1026-1042, doi: 10.6038/cjg2020N0195.
Nie S T, Tian X B, Li J T, et al. 2021. Lithospheric mantle underneath the Tibetan Plateau does not escape southeastward. Journal of Asian Earth Sciences, 206: 104629. doi: 10.1016/j.jseaes.2020.104629
Ogawa Y, Mishina M, Goto T, et al. 2001. Magnetotelluric imaging of fluids in intraplate earthquake zones, NE Japan back arc. Geophysical Research Letters, 28(19): 3741-3744. doi: 10.1029/2001GL013269
Paige C C, Saunders M A. 1982. LSQR: An algorithm for sparse linear equations and sparse least squares. ACM Transactions on Mathematical Software, 8(1): 43-71. doi: 10.1145/355984.355989
Pan R, Jiang J Z, Fu H, et al. 2019. Focal mechanism and focal depth determination of Yunnan Yangbi MS5.1 and MS4.8 earthquakes in 2017. Journal of Seismological Research (in Chinese), 42(3): 338-348, doi: 10.3969/j.issn.1000-0666.2019.03.005.
Pawlowski R S. 1995. Preferential continuation for potential-field anomaly enhancement. Geophysics, 60(2): 390-398. doi: 10.1190/1.1443775
Royden L H, Burchfiel B C, King R W, et al. 1997. Surface deformation and Lower crustal flow in eastern Tibet. Science, 276(5313): 788-790. doi: 10.1126/science.276.5313.788
Schoenbohm L M, Burchfiel B C, Chen L Z. 2006. Propagation of surface uplift, lower crustal flow, and Cenozoic tectonics of the southeast margin of the Tibetan Plateau. Geology, 34(10): 813-816, doi: 10.1130/G22679.1.
Sibson R H. 1992. Implications of fault-valve behaviour for rupture nucleation and recurrence. Tectonophysics, 211(1-4): 283-293. doi: 10.1016/0040-1951(92)90065-E
Su Y J, Liu Z Y, Cai M J, et al. 1999. Deep medium environment of strong earthquakes occurrence in Yunnan region. Acta Seismologica Sinica (in Chinese), 21(3): 313-322. http://www.cnki.com.cn/Article/CJFDTotal-DZXY199903012.htm
Sun J, Xu C F, Jiang Z, et al. 1989. The electrical structure of the crust and upper mantle in the west part of Yunnan province and its relation to crustal tectonics. Seismology and Geology (in Chinese), 11(1): 35-45. http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZDZ198901004.htm
Tang P, Chang Z F. 2013. Study on activity of Weishan basin section of Weixi Qiaohou fault. Geological Review (in Chinese), 59(S1): 108-109.
Teng J W. 2004. Lithospheric Physics (in Chinese). Beijing: Science Press.
Um J, Thurber C. 1987. A fast algorithm for two-point seismic ray tracing. Bulletin of the Seismological Society of America, 77(3): 972-986. doi: 10.1785/BSSA0770030972
Unsworth M, Bedrosian P A. 2004. On the geoelectric structure of major strike-slip faults and shear zones. Earth, Planets and Space, 56(12): 1177-1184. doi: 10.1186/BF03353337
Unsworth M J, Jones A G, Wei W, et al. 2005. Crustal rheology of the Himalaya and Southern Tibet inferred from magnetotelluric data. Nature, 438(7064): 78-81. doi: 10.1038/nature04154
Wang C Y, Mooney W D, Wang X L. 2002. Study on 3-D velocity structure of crust and upper mantle in Sichuan-Yunnan region, China. Acta Seismologica Sinica (in Chinese), 24(1): 1-16. http://qikan.cqvip.com/Qikan/Article/Detail?id=1001385925
Wang C Y, Wu J P, Lou H, et al. 2003. P-wave crustal velocity structure in western Sichuan and eastern Tibetan region. Science in China Series D: Earth Sciences, 46(2): 254-265.
Wang C Y, Han W B, Wu J P, et al. 2007. Crustal structure beneath the eastern margin of the Tibetan Plateau and its tectonic implications. Journal of Geophysical Research: Solid Earth, 112(B7): B07307, doi: 10.1029/2005JB003873.
Wang Y, Li Q L, Ran H, et al. 2018. Geothermal and seismic activities in the southeastern Tibetan Plateau: constraints from helium isotopes. Bulletin of Mineralogy, Petrology and Geochemistry (in Chinese), 37(4): 652-662. http://en.cnki.com.cn/Article_en/CJFDTotal-KYDH201804010.htm
Wang Z, Zhao D P, Wang J. 2010. Deep structure and seismogenesis of the north-south seismic zone in southwest China. Journal of Geophysical Research: Solid Earth, 115(B12): B12334, doi: 10.1029/2010JB007797.
Wu J P, Ming Y H, Wang C Y. 2001. The S wave velocity structure beneath digital seismic stations of Yunnan province inferred from teleseismic receiver function modelling. Chinese Journal of Geophysics (in Chinese), 44(2): 228-237. http://onlinelibrary.wiley.com/doi/10.1002/cjg2.135
Xu C F. 1997. Fluid evolution in crust and earthquake Genesis (Ⅲ). Acta Seismologica Sinica (in Chinese), 19(2): 139-144.
Xu S Z. 2007. A comparison of effects between the iteration method and FFT for downward continuation of potential fields. Chinese Journal of Geophysics (in Chinese), 50(1): 285-289. http://onlinelibrary.wiley.com/doi/10.1002/cjg2.1032
Xu S Z, Yu H L, Li H X, et al. 2009. The inversion of apparent density based on the separation and continuation of potential field. Chinese Journal of Geophysics (in Chinese), 52(6): 1592-1598, doi: 10.3969/j.issn.0001-5733.2009.06.021.
Xu T, Zhang M H, Tian X B, et al. 2014. Upper crustal velocity of Lijiang-Qingzhen profile and its relationship with the seismogenic environment of the MS6.5 Ludian earthquake. Chinese Journal of Geophysics (in Chinese), 57(9): 3069-3079, doi: 10.6038/cjg20140932.
Xu T, Zhang Z J, Liu B F, et al. 2015. Crustal velocity structure in the Emeishan Large Igneous Province and evidence of the Permian mantle plume activity. Science China: Earth Sciences (in Chinese), 58(7): 1133-1147. doi: 10.1007/s11430-015-5094-6
Xu Y, Zhong D L, Liu J H. 2012. Constraints of deep structures on the crust-mantle decoupling in the western Yunnan and the magma activity in the Tengchong volcanic area. Progress in Geophysics (in Chinese), 27(3): 846-855, doi: 10.6038/j.issn.1004-2903.2012.03.003.
Xu Y, Yang X T, Liu J H. 2013. Tomographic study of crustal velocity structures in the Yunnan region southwest China. Chinese Journal of Geophysics (in Chinese), 56(6): 1904-1914, doi: 10.6038/cjg20130613.
Yang J Y, Xu S Z, Yu H L, et al. 2008. Application of apparent density inversion method in the East China Sea and its adjacent area. Chinese Journal of Geophysics (in Chinese), 51(6): 1909-1916. http://www.oalib.com/paper/1568097
Yang T, Wu J, Fang L, et al. 2014. Complex structure beneath the southeastern Tibetan Plateau from teleseismic P-wave tomography. Bulletin of the Seismological Society of America, 104(3): 1056-1069. doi: 10.1785/0120130029
Yang W C, Hou Z Z, Yu C Q. 2015. 3D crustal density structure of West Yunnan and its tectonic implications. Chinese Journal of Geophysics (in Chinese), 58(11): 3902-3916, doi: 10.6038/cjg20151102.
Yang X T, Xu Y, Liu J H, et al. 2011. Seismic tomography in the Tengchong volcanic area and its tectonic implication. Chinese Journal of Geophysics (in Chinese), 54(8): 2050-2059, doi: 10.3969/j.issn.0001-5733.2011.08.012.
Yang Y J, Zheng Y, Chen J, et al. 2010. Rayleigh wave phase velocity maps of Tibet and the surrounding regions from ambient seismic noise tomography. Geochemistry, Geophysics, Geosystems, 11(8): Q08010, doi: 10.1029/2010GC003119.
Yao H J, Van Der Hilst R D, De Hoop M V. 2006. Surface-wave array tomography in SE Tibet from ambient seismic noise and two-station analysis-I. Phase velocity maps. Geophysical Journal International, 166(2): 732-744. http://gji.oxfordjournals.org/content/166/2/732
Yao H J, Beghein C, Van Der Hilst R D. 2008. Surface wave array tomography in SE Tibet from ambient seismic noise and two-station analysis-Ⅱ. Crustal and upper-mantle structure. Geophysical Journal International, 173(1): 205-219.
Yu C Q, Zhang G, Wang X B, et al. 2017. Deep electrical resistivity structure of Sanjiang Area of west Yunnan and its significance. Chinese Journal of Geophysics (in Chinese), 60(6): 2385-2396, doi: 10.6038/cjg20170628.
Yunnan Earthquake Agency. 2021. The official release of the intensity map of the Yangbi MS6.4 earthquake, Yunnan. http://www.yndzj.gov.cn/yndzj/_300559/_300651/629959/index.html. [2021-05-25].
Zhan Y, Zhao G Z, Wang J J, et al. 2008. Deep electric structure beneath the epicentre of the 1927 Gulang M8 earthquake and its adjacent areas from magnetotelluric sounding. Chinese Journal of Geophysics (in Chinese), 51(2): 511-520. http://www.oalib.com/paper/1569275
Zhan Y, Zhao G Z, Unsworth M, et al. 2013. Deep structure beneath the southwestern section of the Longmenshan fault zone and seismogenetic context of the 4.20 Lushan MS7.0 earthquake. Chinese Science Bulletin, 58(28): 3467-3474. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kxtb-e201328005
Zhang Z, Zhao B, Zhang X, et al. 2006. Crustal structure beneath the wide angle seismic profile between Simao and Zhongdian in Yunnan. Chinese Journal of Geophysics (in Chinese), 49(5): 1377-1384. http://qikan.cqvip.com/Qikan/Article/Detail?id=22708329
Zhao C P, Chen Y L, Wang Y, et al. 2014. Geothermal field in the uppermost crust in the Ning'er-Tongguan volcanic zone, Southwest China: Implications for tectonics and magmatism. Acta Petrologica Sinica (in Chinese), 30(12): 3645-3656. http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201412014.htm
Zhao D P, Hasegawa A, Kanamori H. 1994. Deep structure of Japan subduction zone as derived from local, regional, and teleseismic events. Journal of Geophysical Research: Solid Earth, 99(B11): 22313-22329. doi: 10.1029/94JB01149
Zhao D P, Mishra O P, Sanda R. 2002. Influence of fluids and magma on earthquakes: seismological evidence. Physics of the Earth and Planetary Interiors, 132(4): 249-267. doi: 10.1016/S0031-9201(02)00082-1
Zhao G Z, Liu G D, Zhan Y, et al. 1998. The structure of the crust and upper mantle for the Zhangbei-Shangyi seismic area and its neighbouring region. Seismology and Geology (in Chinese), 20(2): 155-163. http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZDZ802.010.htm
Zhao X Y, Fu H. 2014. Seismogenic structure identification of the 2013 Eryuan MS5.5 and MS5.0 earthquake sequence. Acta Seismologica Sinica (in Chinese), 36(4): 640-650, doi: 10.3969/j.issn.0253-3782.2014.04.010.
白志明, 王椿镛. 2003. 云南地区上部地壳结构和地震构造环境的层析成像研究. 地震学报, 25(2): 117-127. doi: 10.3321/j.issn:0253-3782.2003.02.001
白志明, 王椿镛. 2004. 云南遮放-宾川和孟连-马龙宽角地震剖面的层析成像研究. 地球物理学报, 47(2): 257-267. doi: 10.3321/j.issn:0001-5733.2004.02.012 http://www.geophy.cn//CN/abstract/abstract1545.shtml
曹令敏, 胥颐, 吴时国. 2013. 腾冲地区地壳速度结构的有限差分成像. 地球物理学报, 56(4): 1159-1167, doi: 10.6038/cjg20130411. http://www.geophy.cn//CN/abstract/abstract9431.shtml
陈炳蔚, 王铠元, 刘万熹等. 1987. 怒江-澜沧江-金沙江地区大地构造. 北京: 地质出版社.
陈福坤, 李秋立, 王秀丽等. 2006. 滇西地区腾冲地块东侧混合岩锆石年龄和Sr-Nd-Hf同位素组成. 岩石学报, 22(2): 439-448. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200602016.htm
程裕祺. 1994. 中国区域地质概论. 北京: 地质出版社.
丁志峰. 1999. 近震层析成像的理论及应用[博士论文]. 北京: 中国地震局地球物理研究所.
丁志峰. 2011. 中国地震科学台阵探测——南北地震带南段. 地震科技与国际交流, (2): 36-39.
董美玲. 2016. 滇西腾冲-保山地块岩浆作用研究及其构造意义[博士论文]. 北京: 中国地质大学(北京).
高家乙, 李永华, 徐小明等. 2016. 云南地区地壳速度结构和地震活动性研究. 地球物理学进展, 31(2): 508-516, doi: 10.6038/pg20160202.
胡家富, 朱雄关, 夏静瑜等. 2005. 利用面波和接收函数联合反演滇西地区壳幔速度结构. 地球物理学报, 48(5): 1069-1076. doi: 10.3321/j.issn:0001-5733.2005.05.013 http://www.geophy.cn//CN/abstract/abstract779.shtml
华雨淋, 吕彦. 2019. 腾冲火山及周边地区双差层析成像. 地球物理学报, 62(8): 2982-2990, doi: 10.6038/cjg2019M0269. http://www.geophy.cn//CN/abstract/abstract15119.shtml
黄金莉, 赵大鹏. 2005. 首都圈地区地壳三维P波速度细结构与强震孕育的深部构造环境. 科学通报, 50(4): 348-355. doi: 10.3321/j.issn:0023-074X.2005.04.009
雷兴林, 王志伟, 马胜利等. 2021. 关于2021年5月滇西漾濞MS6.4地震序列特征及成因的初步研究. 地震学报, 43(3): 261-286, doi: 10.11939/jass.20210100.
李大虎, 丁志峰, 吴萍萍等. 2015. 鲜水河断裂带南东段的深部孕震环境与2014年康定MS6.3地震. 地球物理学报, 58(6): 1941-1953, doi: 10.6038/cjg20150610.
李大虎. 2016. 川滇交界地段强震潜在危险区深部结构和孕震环境研究[博士论文]. 北京: 中国地震局地球物理研究所.
李大虎, 丁志峰, 吴萍萍等. 2019. 川滇交界东段昭通、莲峰断裂带的深部结构特征与2014年鲁甸MS6.5地震. 地球物理学报, 62(12): 4571-4587, doi: 10.6038/cjg2019M0450. http://www.geophy.cn//CN/abstract/abstract15255.shtml
李其林, 王云, 周艺颖等. 2019. 剑川-德钦一带的地热异常: 对川滇菱块西北边界和地震活动性的意义. 矿物岩石地球化学通报, 38(1): 90-102. https://www.cnki.com.cn/Article/CJFDTOTAL-KYDH201901010.htm
李文军, 邵志刚, 闻学泽等. 2016. 滇西牟定-香格里拉电性剖面及深部构造. 地球物理学报, 59(1): 229-239, doi: 10.6038/cjg20160119. http://www.geophy.cn//CN/abstract/abstract12103.shtml
李永华, 吴庆举, 田小波等. 2009. 用接收函数方法研究云南及其邻区地壳上地幔结构. 地球物理学报, 52(1): 67-80. http://www.geophy.cn//CN/abstract/abstract871.shtml
龙锋, 祁玉萍, 易桂喜等. 2021. 2021年5月21日云南漾濞MS6.4地震序列重新定位与发震构造分析. 地球物理学报, 64(8): 2631-2646, doi: 10.6038/cjg2021O0526. http://www.geophy.cn//CN/abstract/abstract15955.shtml
楼海, 王椿镛, 皇甫岗等. 2002. 云南腾冲火山区上部地壳三维地震速度层析成像. 地震学报, 24(3): 243-251. doi: 10.3321/j.issn:0253-3782.2002.03.003
罗愫, 于常青, 张刚等. 2020. 滇西三江构造带电性结构特征——以福贡-巧家剖面为例. 地球物理学报, 63(3): 1026-1042, doi: 10.6038/cjg2020N0195. http://www.geophy.cn//CN/abstract/abstract15376.shtml
潘睿, 姜金钟, 付虹等. 2019. 2017年云南漾濞MS5.1及MS4.8地震震源机制解和震源深度测定. 地震研究, 42(3): 338-348, doi: 10.3969/j.issn.1000-0666.2019.03.005.
苏有锦, 刘祖荫, 蔡民军等. 1999. 云南地区强震分布的深部地球介质背景. 地震学报, 21(3): 313-322. doi: 10.3321/j.issn:0253-3782.1999.03.013
孙洁, 徐常芳, 江钊等. 1989. 滇西地区地壳上地幔电性结构与地壳构造活动的关系. 地震地质, 11(1): 35-45. https://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ198901004.htm
汤沛, 常祖峰. 2013. 维西-乔后断裂巍山盆地段活动性研究. 地质论评, 59(S1): 108-109. https://cdmd.cnki.com.cn/Article/CDMD-10673-1013306396.htm
滕吉文. 2004. 岩石圈物理学. 北京: 科学出版社.
王椿镛, Mooney W D, 王溪莉等. 2002. 川滇地区地壳上地幔三维速度结构研究. 地震学报, 24(1): 1-16. doi: 10.3321/j.issn:0253-3782.2002.01.001
王椿镛, 吴建平, 楼海等. 2003. 川西藏东地区的地壳P波速度结构. 中国科学(D辑), 33(S1): 181-189. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK2003S1019.htm
王云, 李其林, 冉华等. 2018. 青藏高原东南缘地热与地震活动: 来自氦同位素的约束. 矿物岩石地球化学通报, 37(4): 652-662. https://www.cnki.com.cn/Article/CJFDTOTAL-KYDH201804010.htm
吴建平, 明跃红, 王椿镛. 2001. 云南数字地震台站下方的S波速度结构研究. 地球物理学报, 44(2): 228-237. doi: 10.3321/j.issn:0001-5733.2001.02.010 http://www.geophy.cn//CN/abstract/abstract3622.shtml
徐常芳. 1997. 壳内流体演化及地震成因(三). 地震学报, 19(2): 139-144. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXB702.002.htm
徐世浙. 2007. 迭代法与FFT法位场向下延拓效果的比较. 地球物理学报, 50(1): 285-289. doi: 10.3321/j.issn:0001-5733.2007.01.035 http://www.geophy.cn//CN/abstract/abstract1526.shtml
徐世浙, 余海龙, 李海侠等. 2009. 基于位场分离与延拓的视密度反演. 地球物理学报, 52(6): 1592-1598, doi: 10.3969/j.issn.0001-5733.2009.06.021. http://www.geophy.cn//CN/abstract/abstract1071.shtml
徐涛, 张明辉, 田小波等. 2014. 丽江-清镇剖面上地壳速度结构及其与鲁甸MS6.5级地震孕震环境的关系. 地球物理学报, 57(9): 3069-3079, doi: 10.6038/cjg20140932. http://www.geophy.cn//CN/abstract/abstract10745.shtml
徐涛, 张忠杰, 刘宝峰等. 2015. 峨眉山大火成岩省地壳速度结构与古地幔柱活动遗迹: 来自丽江-清镇宽角地震资料的约束. 中国科学: 地球科学, 45(5): 561-576. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201505002.htm
胥颐, 钟大赉, 刘建华. 2012. 滇西地区壳幔解耦与腾冲火山区岩浆活动的深部构造研究. 地球物理学进展, 27(3): 846-855, doi: 10.6038/j.issn.1004-2903.2012.03.003.
胥颐, 杨晓涛, 刘建华. 2013. 云南地区地壳速度结构的层析成像研究. 地球物理学报, 56(6): 1904-1914, doi: 10.6038/cjg20130613. http://www.geophy.cn//CN/abstract/abstract9575.shtml
杨金玉, 徐世浙, 余海龙等. 2008. 视密度反演在东海及邻区重力异常解释中的应用. 地球物理学报, 51(6): 1909-1916. doi: 10.3321/j.issn:0001-5733.2008.06.034 http://www.geophy.cn//CN/abstract/abstract857.shtml
杨文采, 侯遵泽, 于常青. 2015. 滇西地壳三维密度结构及其大地构造含义. 地球物理学报, 58(11): 3902-3916, doi: 10.6038/cjg20151102. http://www.geophy.cn//CN/abstract/abstract11967.shtml
杨晓涛, 胥颐, 刘建华等. 2011. 腾冲火山区的地震层析成像及其构造意义. 地球物理学报, 54(8): 2050-2059, doi: 103969/j.issn.0001-5733.2011.08.012. http://www.geophy.cn//CN/abstract/abstract8090.shtml
于常青, 张刚, 王绪本等. 2017. 滇西三江地区深部电性结构特征及其意义. 地球物理学报, 60(6): 2385-2396, doi: 10.6038/cjg20170628. http://www.geophy.cn//CN/abstract/abstract13780.shtml
云南省地震局. 2021. 云南漾濞6.4级地震烈度图发布. http://www.yndzj.gov.cn/yndzj/_300559/_300651/629959/index.html. [2021-05-25].
詹艳, 赵国泽, 王继军等. 2008. 1927年古浪8级大震区及其周边地块的深部电性结构. 地球物理学报, 51(2): 220-229. http://www.geophy.cn//CN/abstract/abstract446.shtml
詹艳, 赵国泽, Unsworth M等. 2013. 龙门山断裂带西南段4.20芦山7.0级地震区的深部结构和孕震环境. 科学通报, 58(20): 1917-1924. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB201320006.htm
张智, 赵兵, 张晰等. 2006. 云南思茅-中甸地震剖面的地壳结构. 地球物理学报, 49(5): 1377-1384. doi: 10.3321/j.issn:0001-5733.2006.05.017 http://www.geophy.cn//CN/abstract/abstract648.shtml
赵慈平, 陈有丽, 王云等. 2014. 云南宁洱-通关火山区最上地壳地热场: 构造和岩浆活动意义. 岩石学报, 30(12): 3645-3656. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201412014.htm
赵国泽, 刘国栋, 詹艳等. 1998. 张北-尚义地震区及其邻区地壳上地幔结构. 地震地质, 20(2): 155-163. https://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ802.010.htm
赵小艳, 付虹. 2014. 2013年洱源MS5.5和MS5.0地震发震构造识别. 地震学报, 36(4): 640-650, doi:10.3969/j.issn.0253-3782.2014.04.010.
-
下载:
图(9)
计量
- 文章访问数: 2144
- PDF下载数: 588
- 施引文献: 0