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| 1 | Stress changes on major faults caused by 2013 Lushan earthquake and its relationship with 2008 Wenchuan earthquake显示文摘On April 20, 2013, an Ms7.0 earthquake occurred in Ya'an-Lushan region, Sichuan Province, China, killing and injuring morethan one thousand people. Therefore, it is critical to outline the areas with potential aftershocks before reconstruction andre-settlement as to avoid future disasters. Based on the elastic dislocation theory and multi-layered lithospheric model, we calculate the co-and post-seismic stress changes caused by the Wenchuan and Lushan earthquakes to discuss the relationshipbetween Mw7.9 Wenchuan earthquake and Ms7.0 Lushan earthquake, the influences on the distribution of aftershock caused bythe Lushan earthquake, and the stress changes on major faults in this region. It is shown that the Coulomb failure stress increment on the hypocenter of Lushan earthquake caused by the Wenchuan earthquake is about 0.0037-0.0113 MPa. And the possible maximum value (0.0113 MPa) is larger than the threshold of stress triggering. Therefore, the occurrence of Lushanearthquake is probably effectively promoted by the Wenchuan earthquake. The aftershock distribution is well explained by theco-seismic stress changes of Lushan earthquake. By the two ends of the rupture of Lushan earthquake with increased Coulombfailure stress, a lack of aftershock recordings indicates the high seismic hazard. The stress accumulation and correspondingseismic hazard on the Kangding-Dafu segment of the Xinshuihe fault, the Beichuan-Yingxiu fault, the Pengxian-Guanxianfault, and the Ya'an fault are further increased by the Lushan earthquake and post-seismic process of Wenchuan earthquake. | SHAN Bin XIONG Xiong ZHENG Yong JIN BiKai LIU ChengLi XIE ZhuJun HSU HouTze | 2013 | Science China Earth Sciences2013,56,7: | 49 |
| 2 | Granitic magmatism related to early Paleozoic continental collision in North Qinling显示文摘Zircon U-Pb dating of early Paleozoic granitoids in North Qinling yields three age peaks of^500,~452 and^420 Ma.They can be temporally correlated with high-pressure to ultrahigh-pressure metamorphism at ca.500 Ma,retrograde granulite-facies metamorphisms at ca.450 Ma and amphibolite-facies metamorphism at ca.420 Ma,respectively.The first episode of granitic magmatism is considered to have resulted from continental collision,whereas the second and third episodes of magmatism are attributed to crustal uplifting.Combined with the regional geological setting and new results from high-pressure and ultrahigh-pressure metamorphic rocks,the ca.500 Ma magmatism is interpreted as the result of partial melting of sedimentary rocks in accretionary wedge between the south Qinling microcontinent and the north Qinling belt including the southern margin of the North China Craton.The ca.450 Ma intensive magmatism is ascribed to dehydration melting of deeply subducted continental crust at thickened conditions in response to slab breakoff,and the final magmatism in ca.420 Ma is interpreted as the product of partial melting during the tectonic transition from contraction to extension. | ZHANG ChengLi LIU Liang WANG Tao WANG XiaoXia LI Lei GONG QiFu LI XiaoFei | 2013 | Chinese Science Bulletin2013,58,35: | 30 |
| 3 | Study and use of the probiotic Lactobacillus reuteri in pigs:a review显示文摘Probiotics are living microorganisms that provide a wide variety of health benefits to the host when ingested in adequate amounts.The bacterial strains most frequently used as probiotic agents are lactic acid bacteria,such as Lactobacillus reuteri,which is one of the few endogenous Lactobacillus species found in the gastrointestinal tract of vertebrates,including humans,rats,pigs and chickens.L reuteri is one of the most well documented probiotic species and has been widely utilized as a probiotic in humans and animals for many years.Initially,L reuteri was used in humans to reduce the incidence and the severity of diarrhea,prevent colic and necrotic enterocolitis,and maintain a functional mucosal barrier.As interest in alternatives to in-feed antibiotics has grown in recent years,some evidence has emerged that probiotics may promote growth,improve the efficiency of feed utilization,prevent diarrhea,and regulate the immune system in pigs.In this review,the characteristics of L reuteri are described,in order to update the evidence on the efficacy of using L.reuteri in pigs. | Chengli Hou Xiangfang Zeng Fengjuan Yang Hong Liu Shiyan Qiao | 2016 | Journal of Animal Science and Biotechnology2016,7,1: | 19 |
| 4 | Coseismic Coulomb failure stress changes caused by the 2017 M7.0 Jiuzhaigou earthquake,and its relationship with the 2008 Wenchuan earthquake显示文摘On August 8, 2017, a M7.0 earthquake occurred in Jiuzhaigou County, Sichuan Province, China, resulting in significant casualties and property damage. Therefore, it is critical to identify the areas of potential aftershocks before reconstruction and re-settling people to avoid future disasters. Based on the elastic dislocation theory and a multi-layered lithospheric model, we calculate the Coulomb failure stress changes caused by the Wenchuan and Jiuzhaigou earthquakes, discuss the relationship between the Mw7.9 Wenchuan and M7.0 Jiuzhaigou earthquakes, and analyze the influence of the aftershock distribution and stress changes on the major faults in this region caused by the Jiuzhaigou earthquake. The co-and post-seismic stress changes caused by the Wenchuan earthquake significantly increased the stress accumulation at the hypocenter of the Jiuzhaigou earthquake. Therefore,the occurrence of the Jiuzhaigou earthquake was probably stimulated by the Wenchuan earthquake. The aftershock distribution is well explained by the co-seismic stress changes of the Jiuzhaigou earthquake. The stress accumulation and corresponding seismic hazard on the Maqu-Heye segment of the East Kunlun fault and the northern extremity of the Huya fault has been further increased by the Jiuzhaigou earthquake. | SHAN Bin ZHENG Yong LIU ChengLi XIE ZuJun KONG Jun | 2017 | Science China Earth Sciences2017,60,12: | 16 |
| 5 | Rupture process of the M_s 7.0 Lushan earthquake, 2013显示文摘On April 20, 2013 at 8:02 am, a magnitude 7.0 earthquake occurred in Lushan County, Sichuan Province, China, which induces massive landslides, causes great losses to life and property. Based on the locations of aftershocks provided by the China Earthquake Network Center and the characteristic of Longmenshan active faults system, combined with the current preliminary focal mechanism solution, the fault rupture direction is determined. With the finite fault inversion method, we invert the rupture process of the Lushan M s 7.0 earthquake by teleseismic waveforms data. The inversion results indicate that the main shock is dominated by thrust fault component and the rupture initiated at depth of 15 km, and most of slip ruptured around the hypocenter with the peak slip of about 1.5 m. Most of rupture slips released at the first 20 s and the main rupture occurred at the first 10 s after the onsets of the mainshock. Most of seismic energy released near the hypocenter with a length of 28 km, especially on both sides of the hypocenter with the range of 20 km, and the seismic energy released relatively smaller in other areas. There is a large area with weak slip between the main rupture and another two asperities on both sides of the hypocenter; it may imply that the accumulated strain on the rupture fault has not been completely released. Therefore, there is a significant possibility of having strong aftershocks in the areas where energy is not fully released. This is also the main reason why there are a lot of moderate to strong aftershocks in the Lushan aftershock sequence. In addition, there is an earthquake vacant zone with a length of about 50 km between the Wenchuan M w 7.9 earthquake and this event, which is of high earthquake risk and is deserved to be paid close attention to. | LIU ChengLi ZHENG Yong GE Can XIONG Xiong HSU HouTze | 2013 | Science China Earth Sciences2013,56,7: | 15 |
| 6 | Overview of China's Antarctic research progress 1984–2016显示文摘It is more than 30 years since the first Chinese National Antarctic Research Expedition(CHINARE) landed in Antarctica in 1984, representing China's initiation in polar research. This review briefly summarizes the Chinese Antarctic scientific research and output accomplished over the past 30 years. The developments and progress in Antarctic research and the enhancement of international scientific cooperation achieved through the implementation of the CHINARE program have been remarkable. Since the 1980 s, four permanent Chinese Antarctic research stations have been established successively and 33 CHINAREs have been completed. The research results have been derived from a series of spatiotemporal observations in association with various projects and multidisciplinary studies in the fields of oceanography, glaciology, geology, geophysics, geochemistry, atmospheric science, upper atmospheric physics, Antarctic astronomy, biology and ecology, human medicine, polar environment observation, and polar engineering. | CHEN Liqi LIU Xiaohan BIAN Lingen CHEN Bo HUANG Hongliang HU Hongqiao LUO Wei SHI Guitao SHI Jiuxin XU Chengli YANG Guang ZHAO Yue ZHANG Shaohua | 2017 | Advances in Polar Science2017,28,3: | 9 |
| 7 | Constraining the focal mechanism of the Lushan earthquake with observations of the Earth's free oscillations显示文摘The amplitudes of the Earth's free oscillations have a close relationship to earthquake focal mechanisms. Focal mechanisms of large earthquakes can be well analyzed and constrained with observations of long period free oscillations. Although the 2013 Lushan earthquake was only moderately sized, observable spherical normal modes were excited and clearly observed by a superconductive gravimeter and a broadband seismometer. We compare observed free oscillations with synthetic normal modes corresponding to four different focal mechanisms for the Lushan earthquake. The results show that source parameters can be analyzed and constrained by spherical normal modes in a 2.3–5 mHz frequency band. The scalar seismic moment M0 has a major influence on the amplitudes of free oscillations; additionally, the strike, dip, rake and depth of the hypocenter have minor influences. We found that the synthetic modes corresponding to the focal mechanism determined by the Global Centroid Moment Tensor show agreement to the observed modes, suggesting that earthquake magnitudes predicted in this way can readily reflect the total energy released by the earthquake. The scalar seismic moment obtained by far-field body wave inversion is significantly underestimated. Focal mechanism solutions can be improved by joint inversion of far- and near-field data. | JIANG Ying HU XiaoGang LIU ChengLi SUN HePing | 2014 | Science China Earth Sciences2014,57,9: | 8 |
| 8 | Preliminary analysis on the source properties and seismogenic structure of the 2017 M_s7.0 Jiuzhaigou earthquake显示文摘At GMT time 13:19, August 8, 2017, an Ms7.0 earthquake struck the Jiuzhaigou region in Sichuan Province, China,causing severe damages and casualties. To investigate the source properties, seismogenic structures, and seismic hazards, we systematically analyzed the tectonic environment, crustal velocity structure in the source region, source parameters and rupture process, Coulomb failure stress changes, and 3-D features of the rupture plane of the Jiuzhaigou earthquake. Our results indicate the following:(1) The Jiuzhaigou earthquake occurred on an unmarked fault belonging to the transition zone of the east Kunlun fault system and is located northwest of the Huya fault.(2) Both the mainshock and aftershock rupture zones are located in a region where crustal seismic velocity changes dramatically. Southeast to the source region, shear wave velocity at the middle to lower crust is significantly low, but it rapidly increases northeastward and lies close to the background velocity across the rupture fault.(3) The aftershock zone is narrow and distributes along the northwest-southeast trend, and most aftershocks occur within a depth range of 5–20 km.(4) The focal mechanism of the Jiuzhaigou earthquake indicates a left-lateral strike-slip fault, with strike, dip, and rake angles of 152°, 74° and 8°, respectively. The hypocenter depth measures 20 km, whereas the centroid depth is about 6 km. The co-seismic rupture mainly concentrates at depths of 3–13 km, with a moment magnitude(M_w) of 6.5.(5) The co-seismic rupture also strengthens the Coulomb failure stress at the two ends of the rupture fault and the east segment of the Tazang fault. Aftershocks relocation results together with geological surveys indicate that the causative fault is a near vertical fault with notable spatial variations: dip angle varies within 66°–89° from northwest to southeast and the average dip angle measures ~84°. The results of this work are of fundamental importance for further studies on the source characteristics, tectonic environment, and seismic hazard evaluation of the Jiuzhaigou earthquake. | Zujun XIE Yong ZHENG Huajian YAO Lihua FANG Yong ZHANG Chengli LIU Maomao WANG Bin SHAN Huiping ZHANG Junjie REN Lingyun JI Meiqin SONG | 2018 | Science China Earth Sciences2018,61,3: | 8 |
| 9 | Towards combining multiple geophysical datasets to determine earthquake source parameters in China显示文摘1.Difficulties of conventional seismic studies on earthquake source parameters Earthquake source parameters,including magnitude,location,focal mechanism,rupture process are key factors for understanding seismogenic environment,mitigating seismic hazards,estimating earthquake triggering,and tectonic analysis.Traditionally,source parameters are determined by seismological methods.For example,Fang L H et al.(2014)relocated the 2012 Ms6.6 Xinjiang Xinyuan earthquake sequence using local seismograms based on the double difference method,and obtained the distribution of | ZHENG Yong LIU ChengLi | 2016 | Science China Earth Sciences2016,59,11: | 6 |
| 10 | Adjuvant radiotherapy in central hepatocellular carcinoma after narrow-margin hepatectomy:A 10-year real-world evidence显示文摘Objective:A prospective randomized control study investigated the feasibility and efficacy of adjuvant radiotherapy on patients with central hepatocellular carcinoma(HCC)after narrow-margin hepatectomy(<1 cm).This study presents an updated 10-year real-world evidence to further characterize the role of adjuvant radiotherapy.Methods:Patients with central HCC after narrow-margin hepatectomy(<1 cm)were prospectively assigned to adjuvant radiotherapy group and control group.Patients'outcome,adverse events,long-term recurrence and survival rates were investigated.Results:The 1-,5-,and 10-year recurrence-free survival(RFS)rates were 81.0%,43.9%,and 38.7%,respectively in adjuvant radiotherapy group and 71.7%,35.8%,and 24.2%,respectively in control group(log-rank test,P=0.09).The 1-,5-,and 10-year overall survival(OS)rates were 96.6%,54.7%,and 42.8%,respectively in adjuvant radiotherapy group and 90.2%,55.1%,and 30.0%,respectively in control group(log-rank test,P=0.20).The 1-,5-,and 10-year RFS rates for patients with small HCC(≤5 cm)were 91.1%,51.6%,and 48.4%,respectively in adjuvant radiotherapy group and 80.0%,36.6%,and 26.6%,respectively in control group(log-rank test,P=0.03).Landmark analysis demonstrated that patients with small HCC in adjuvant radiotherapy group had a significantly improved OS in second five years after treatment in comparison to patients in control group(log-rank test,P=0.05).Conclusions:Our updated results showed a sustained clinical benefit on reducing recurrence,improving longterm survival for small central HCC by adjuvant radiotherapy after narrow-margin hepatectomy.Long-term survival data also indicated that hepatectomy is an optimal treatment for selected patients with central HCC. | Weiqi Rong Weibo Yu Liming Wang Fan Wu Kai Zhang Bo Chen Chengli Miao Liguo Liu Songlin An Changcheng Tao Weihu Wang Jianxiong Wu | 2020 | Chinese Journal of Cancer Research2020,32,5: | 6 |
| 11 | The basic dyke swarms in the Wudang block and its geological significance显示文摘The basic dyke swarms, which have been deformed and metamorphosed, are widespread in the Wudang block. They are geochemically characterized by the continental tholeiites, and their Sm Nd isochron age is (782±164) Ma. All of these indicate that there was an ancient continental block in the Proterozoic and a rifting occurring on this continental block during ±800 Ma. | Dingwu Zhou Chengli Zhang Juli Wang Liang Liu Yunpeng Dong Yinyu Liu Song Han | 1998 | Chinese Science Bulletin1998,43,13: | 6 |
| 12 | Traditional Chinese Medicine syndrome elements of male infertility revealed by latent tree model analysis显示文摘OBJECTIVE: To explore the features of Traditional Chinese Medicine(TCM) syndromes in male infertility using computer-based analyses.METHODS: Latent class analysis was used to analyze the TCM syndrome data from 813 patients with male infertility and establish a latent tree model.RESULTS: A latent tree model with a Bayesian information criterion score of-11 263 was created.This model revealed that the characteristics of basic TCM syndromes in patients with male infertility were kidney Yang deficiency, kidney Qi deficiency,spleen Yang deficiency, liver Qi stagnation, Qi stagnation and blood stasis, and dump-heat; moreover,most patients with male infertility had complex syndromes(spleen-kidney Yang deficiency and liver Qi stagnation) rather than simple single syndromes.CONCLUSION: The hidden tree model analysis revealed the objective and quantitative complex relationships between the TCM symptoms of male infertility, and obtained the quantification and objective evidence of TCM syndromes in male infertility. | Zhang Zhijie Liu Shaoming Zhang Yueyang Yang Jingzhe Kong Tao Wang Chengli Ning Peng Chen Xiaochao Li Xuesong Jia Yusen Chen Xiaojun | 2018 | Journal of Traditional Chinese Medicine2018,38,6: | 5 |
| 13 | Ripple-effect analysis for operational architecture of air defense systems with supernetwork modeling显示文摘In order to solve the problem that the ripple-effect analysis for the operational architecture of air defense systems(OAADS)is hardly described in quantity with previous modeling approaches,a supernetwork modeling approach for the OAADS is put forward by extending granular computing. Based on that operational units and links are equal to different information granularities, the supernetwork framework of the OAADS is constructed as a 'fournetwork within two-layer' structure by forming dynamic operating coalitions, and measuring indexes of the ripple-effect analysis for the OAADS are given combining with Laplace spectral radius. In this framework, via analyzing multidimensional attributes which inherit relations between operational units in different granular scales, an extended granular computing is put forward integrating with a topological structure. Then the operation process within the supernetwork framework, including transformation relations between two layers in the vertical view and mapping relations among functional networks in the horizontal view, is studied in quantity. As the application case shows, comparing with previous modeling approaches, the supernetwork model can validate and analyze the operation mechanism in the air defense architecture, and the ripple-effect analysis can be used to confirm the key operational unit with micro and macro viewpoints. | Zhigang Zou Fuxian Liu Shiman Sun Lu Xia Chengli Fan | 2014 | Journal of Systems Engineering and Electronics2014,25,2: | 5 |
| 14 | Modeling of co- and post-seismic surface deformation and gravity changes of M W 6.9 Yushu, Qinghai,earthquake显示文摘Based on the elastic dislocation theory, multilayered crustal model, and rupture model obtained by seismic waveform inversion, we calculated the coand post-seismic surface deformation and gravity changes caused by the Yushu M W 6.9 earthquake occurred on April 14, 2010. The observed GPS velocity field and gravity field in Yushu areas are disturbed by the coand post-seismic effects induced by Yushu earthquake, thus the theoretical coand post-seismic deformation and gravity changes will provide important modification for the background tectonic movement of Yushu and surrounding regions. The time relaxation results show that the influences of Yushu earthquake on Yushu and surrounding areas will last as long as 30 to 50 years. The maximum horizontal displacement, vertical uplift and settlement are about 1.96, 0.27 and 0.16 m, respectively, the maximal positive and negative value of gravity changes are 8.892×10-7 m·s-2 and -4.861×10-7 m·s-2 , respectively. Significant spatial variations can be found on the coand post-seismic effects: The co-seismic effect mainly concentrates in the region near the rupture fault, while viscoelastic relaxation mostly acts on the far field. Therefore, when using the geodetic data to research tectonic motion, we should not only consider the effect of co-seismic caused by earthquake, but also pay attention to the effect of viscoelastic relaxation. | Chengli Liu Bin Shan Yong Zheng Ying Jiang Xiong Xiong | 2011 | Earthquake Science2011,24,2: | 5 |
| 15 | An Investigation of Crocidolite Contamination and Mesothelioma in a Rural Area of China^1显示文摘Crocidolite was found to be ubiquitous in a county in southwestern China. It had been widely used in the making of road pavement, stoves, wall paint, etc. The environmental levels of the asbestos fibers were determined. Of the 2175 local residents examined. 16 had asbestosis and 232 had pleural plaques. These clinical manifestations were noted mainly in patients over 50 years of age. (c)1990 Academic Press. Inc. | LIU XUEZE, LUO SUQIONG, WANG ZHIMING, WANG MIANZHEN, AND ZHAN CHENGLIE Department of Occupational Health, School of Public Health, West China University of Medical Sciences, Chengdu. Sichuan. China | 1990 | Biomedical and Environmental Sciences1990,3,2: | 3 |
| 16 | Effects of regulated deficit irrigation on soil salinity,physiological processes and fruit quality of gray jujube under desert conditions显示文摘Regulated deficit irrigation(RDI)was applied to gray jujube trees in an oasis region,to determine the effects of this irrigation system on soil salinity,gray jujube physiological processes,fruit yield,and fruit quality.Treatments consisted of severe,moderate and low deficit irrigation(irrigated with 85%,70%and 55%of CK,respectively)at the flowering stage to fruit set stage.During the other growth stages,all treatments were irrigated with 80%of pan evaporation,which was the same as that in control.The results indicated that soil salinity was enhanced during the periods of water stress,but the high value of soil salinity declined by 3.48%-37.27%,at each depth,after irrigation was resumed.RDI caused a decline in the photosynthetic rate,transpiration rate,and stomatal conductance,but enhanced the water use efficiency of the leaves.However,the leaf photosynthetic rate was effectively enhanced after the recovery of irrigation,especially in the moderate deficit irrigation treatment,which exceeded the control.This led to an improved fruit yield,which was 9.57%higher than that of the control.The deficit treatments caused a significant increase in the soluble solid content,soluble sugar content,single fruit weight and sugar/acid ratio.Enhanced vitamin C content,resulting from deficit treatments,has also been observed in the gray jujube.Therefore,this research shows that RDI provides some benefits in the production of gray jujube trees in desert conditions. | Zhipeng Liu Chengli Zhu Shuyu Wu Weihua Guo Yitikaer Abudushalamu Xiyun Jiao Shipei Gao Jie Wang | 2019 | International Journal of Agricultural and Biological Engineering2019,12,3: | 3 |
| 17 | Chartrenoline, a novel alkaloid isolated from a marine Streptomyces chartreusis NA02069显示文摘A novel alkaloid, chartrenoline(1), featuring an unusual 6/6/5/5-tetracyclic nucleus, was isolated from a marine Streptomyces chartreusis NA02069. The structure of 1 including its absolute configurations was established by extensive analyses of its high resolution mass, NMR and single-crystal X-ray diffraction data. A plausible biosynthetic pathway for chartrenoline(1) is proposed. | Chengli Liu Chenglong Yang Yingjie Zeng Jing Shi Lingyu Li Wei Li Ruihua Jiao Renxiang Tan Huiming Ge | 2019 | Chinese Chemical Letters2019,30,1: | 3 |
| 18 | Rupture Process of the M_s 7.0 Lushan Earthquake Determined by Joint Inversion of Local Static GPS Records, Strong Motion Data, and Teleseismograms显示文摘On April 20, 2013, an M_s 7.0 earthquake struck Lushan County in Sichuan Province, China, and caused serious damage to the source region. We investigated the rupture process of the M_s7.0 Lushan earthquake by jointly inverting waveforms of teleseismic P waveforms and local strong motion records as well as static GPS observations. The inverted results indicate that the rupture of this earthquake was dominated by the failure of an asperity with a triangular shape and that the main shock was dominated by thrust slip. The earthquake released a total seismic moment of 1.01× 10^(19)Nm, with 92% of it being released during the first 11 s. The rupture had an average slip of 0.9 m and produced an average stress drop of 1.8 MPa. Compared with our previous work that was based mainly on a unique dataset, this joint inversion result is more consistent with field observations and the distribution of aftershock zones. | Jun Li Chengli Liu Yong Zheng Xiong Xiong | 2017 | Journal of Earth Science2017,28,2: | 3 |
| 19 | Slip rate of the seismogenic fault of the 2021 Maduo earthquake in western China inferred from GPS observations显示文摘Seismic and field observations indicate that the Mw7.4 Maduo earthquake ruptured the Jiangcuo fault,which is a secondary fault~85 km south of the northern boundary of the Bayan Hor block in western China.The kinematic characteristics of the Jiangcuo fault can shed lights on the seismogenic mechanism of this earthquake.Slip rate is one of the key parameters to describe the kinematic features of a fault,which can also provide quantitative evidences for regional seismic hazard assessments.However,due to lack of effective observations,the slip rate of the Jiangcuo fault has not been studied quantitatively.In this study,we consider the interaction between the Jiangcuo fault and the eastern Kunlun fault,and estimate the slip rates of the two faults using the interseismic GPS observations across the seismogenic region.The inferred results show that the slip rates of the Jiangcuo fault and the Tuosuo Lake segment of the Kunlun fault are 1.2±0.8 and 5.4±0.3 mm a^(-1),respectively.Combining the slip rate with the average slip inferred from the coseismic slip model,the earthquake recurrence interval of the Jiangcuo fault is estimated to be 1800700+3700 years(1100–5500 years).Based on the results derived from previous studies,as well as calculations in this study,we infer that the slip rate of the Kunlun fault may decrease gradually from the Tuosuo Lake segment to the eastern tip.The Jiangcuo fault and its adjacent parallel secondary faults may have absorbed the relative motion of blocks together with the Kunlun fault. | Yage ZHU Faqi DIAO Yuchao FU Chengli LIU Xiong XIONG | 2021 | Science China Earth Sciences2021,64,8: | 3 |
| 20 | Co-and post-seismic surface deformation and gravity changes of MS 7.0 Lushan,earthquake显示文摘On April 20,2013,an earthquake with magnitude 7.0 occurred in the southwest of the Longmenshan fault system in and around Lushan County,Sichuan Province,China.This devastating earthquake killed hundreds of people,injured 10 thousand others,and collapsed countless buildings.In order to analyze the potential risk of this big earthquake,we calculate the co-and post-seismic surface deformation and gravity changes of this event.In this work,a multilayered crustal model is designed,and the elastic dislocation theory is utilized to calculate the co-and post-seismic deformations and gravity changes.During the process,a rupture model obtained by seismic waveform inversion(Liu et al.Sci China Earth Sci 56(7):1187–1192,2013)is applied.The time-dependent relaxation results show that the influences on Lushan and its surrounding areas caused by the MS7.0 Lushan earthquake will last as long as 10 years.The maximum horizontal displacement,vertical uplift,and settlement are about 5 cm,21.24 cm,and 0.16 m,respectively;the maximal positive and negative values of gravity changes are 45 and-0.47 lGal,respectively.These results may be applied to evaluate the long-term potential risk caused by this earthquake and to provide necessary information for post-earthquake reconstruction. | Kai Wang Chengli Liu Xiong Xiong Yong Zheng | 2013 | Earthquake Science2013,26,3: | 2 |