|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Active tectonic blocks and strong earthquakes in the continent of China显示文摘The primary pattern of the late Cenozoic to the present tectonic deformation of China is characterized by relative movements and interactions of tectonic blocks. Active tectonic blocks are geological units that have been separated from each other by active tectonic zones. Boundaries between blocks are the highest gradient of differential movement. Most of tectonic activity occurs on boundaries of the blocks. Earthquakes are results of abrupt releases of accumulated strain energy that reaches the threshold of strength of the earth's crust. Boundaries of tectonic blocks are the locations of most discontinuous deformation and highest gradient of stress accumulation, thus are the most likely places for strain energy accumulation and releases, and in turn, devastating earthquakes. Almost all earthquakes of magnitude greater than 8 and 80%-90% of earthquakes of magnitude over 7 occur along boundaries of active tectonic blocks. This fact indicates that differential movements and interactions of active tectonic blocks are the primary mechanism for the occurrences of devastating earthquakes. | ZHANG Peizhen (张培震) DENG Qidong (邓起东) ZHANG Guomin (张国民) MA Jin (马 瑾) GAN Weijun (甘卫军) MIN Wei (闵 伟) MAO Fengying (毛凤英) WANG Qi (王 琪) | 2003 | Science China Earth Sciences2003，46，z2： | 239 |
| 2 | Paleoearthquake rupture behavior and recurrence of great earthquakes along the Haiyuan fault, northwestern China显示文摘The Haiyuan fault is a major seismogenic fault in north-central China where the 1920 Haiyuan earthquake of magnitude 8.5 occurred, resulting in more than 220000 deaths. The fault zone can be divided into three segments based on their geometric patterns and associated geomorphology. To study paleoseismology and recurrent history of devastating earthquakes along the fault, we dug 17 trenches along different segments of the fault zone. Although only 10 of them allow the paleoearthquake event to be dated, together with the 8 trenches dug previously they still provide adequate information that enables us to capture major paleoearthquakes oc- curring along the fault during the past geological time. We discovered 3 events along the eastern segment during the past 14000 a, 7 events along the middle segment during the past 9000 a, and 6 events along the western segment during the past 10000 a. These events clearly depict two temporal clusters. The first cluster occurs from 4600 to 6400 a, and the second occurs from 1000 to 2800 a, approximately. Each cluster lasts about 2000 a. Time period between these two clus- ters is also about 2000 a. Based on fault geometry, segmentation pattern, and paleoearthquake events along the Haiyuan fault we can identify three scales of earthquake rupture: rupture of one segment, cascade rupture of two segments, and cascade rupture of entire fault (three segments). Interactions of slip patches on the surface of the fault may cause rupture on one patch or ruptures of more than two to three patchs to form the complex patterns of cascade rupture events. | ZHANG Peizhen MIN Wei DENG Qidong MAO Fengying | 2005 | Science China Earth Sciences2005，48，3： | 31 |
| 3 | Discussion of rupture mechanisms on the seismogenic fault of the 2008 M_s8.0 Wenchuan earthquake显示文摘The May 12, 2008, Ms8.0 Wenchuan earthquake was the outcome of a recent movement of an active intra-continental thrust fault zone. The seismogenic fault of this earthquake underwent oblique-slip faulting along the central fault and pure thrust faulting along the range-front fault of the Longmenshan fault zone. The former had a steep dip and large vertical displacement, and the latter had a gentle dip and little vertical displacement. The fault zone consisted of compressive double fault ramps rup turing with right-lateral strike-slip components resulting from strain partitioning of a deep oblique slip fault in the brittle zone of the upper crust. The kinematic pattern and rupture mechanisms are complex for the seismogenic fault, as indicated by the geometric pattern of its surface ruptures, the coseismic displacement distribution and focal mechanisms of the main shock and aftershocks. As a tear fault, the NW-trending, left-lateral, strike-slip Xiaoyudong fault zone has accommodated NE-trending displacements with different shortening amounts. However, because of intense compression on the southwestern segment of the seismogenic fault, the left-lateral, strike-slip Xiaoyudong fault also carries a clear compression component. Normal faulting with a strike-slip component controls the formation of a fault-trough along the central fault, which is characterized by thrusting with a strike-slip component and strike-slip with thrusting. The fault-troughs are the product of the interaction of slip and grav ity on the seismogenic fault under specific geological and geomorphic conditions. Gravitational force exaggerated the vertical component of fault displacement, which by no means represents the actual maximum vertical displacement of the seismogenic fault. | DENG QiDong CHEN GuiHua ZHU AiLan | 2011 | Science China Earth Sciences2011，54，9： | 19 |
| 4 | History,status and trend about the research of paleoseismology显示文摘Paleoseismology was originated in the late nineteen century, but the modern paleoseismology formed at the end of the 1970s. Three stages (appearance, development and maturity) can be identified for paleoseismology in China. Great progress has been made in the aspects of trench technology, recognition signs, dating method and theoretical model, however,they are not developed to such a level at which the highly reliable data can be provided for the probability prediction of earthquakes. The main questions further concerned in the future include the study of geological evidence, chronology and displacement, the theoretical model about reliability, paleoearthquake feature in the region and large-earthquake reoccurrence, and new branches related with the paleoseismology in the stable continent region, usage of new technology and frontier sciences. | Yongkang Ran Qidong Deng | 1999 | Chinese Science Bulletin1999，44，10： | 15 |
| 5 | Colluvial wedges associated with pre-historical reverse faulting paleoearthquakes显示文摘Colluvial wedges collapsed from fault scarp can also be used to study reverse faulting paleoearthquakes. Generating processes of reverse faulting colluvial wedges are much more complex than those associated with normal faulting earthquakes. Reverse faulting colluvial wedge is also in triangle shape, and dies away from the fault. Contact between the fault and the colluvial wedge may be a simple straight reverse fault or a combination of an erosive surface in the upper part and a reverse fault in the lower part. Contents and grain sizes increase near the fault and along the base of a colluvial wedge. Based on examples from the piedmont reverse fault and fold along the northern Tainshan, we studied characteristics of reverse faulting colluvial wedges, and discussed the generating processes of reverse faulting colluvial wedges. Reverse faulting generates an unstable scarp hanging in the air immediately after an earthquake. Fallen material deposits along the base of newly formed fault scarp. Erosive | Qidong Deng Peizhen Zhang | 2000 | Chinese Science Bulletin2000，45，17： | 6 |
| 6 | Studies on the Surface Rupture Zone of 1303 Hongdong Earthquake of M =8 and Paleoearthquakes of Huoshan Fault in Shanxi Province显示文摘An earthquake of M=8 occurred in the Linfen Basin of the Shanxi graben system in 1303,producing a surface rupture zone about 45km long.Compiling a geological map at 1:10,000 and studying in detail the rupture zone,its dextral strike-slip displacement is determined to be 4-8.6 m,and normal dip-slip displacement up to 3.5-5 m.In this paper the geochronological evidence for the formation of the surface rupture zone is provided and the Huoshan fault is confirmed to be the seismogenic structure for the M=8 earthquake.Field trenching enables us to identify two paleoseismic events having occurred along the Huoshan fault since the middle Holocene before the M8 earthquake.A recurrence interval of these three events including 1303 Hongdong M 8 earthquake is determined to be up to 1500-2000 years.The result corresponds to the mean recurrence interval calculated from slip rate on the Huoshan fault during Holocene. | Deng Qidong and Xu XiweiInstitute of Geology,SSB,Beijing 100029,China | 1994 | Earthquake Research in China1994，8，2： | 4 |
| 7 | A Review on Researches of Active Tectonics—History,Progress and Suggestions显示文摘This paper reviews the history and progress of research on active tectonics in China and overseas.By giving a brief introduction on the history of active tectonic research in China and other countries,the paper sums up the process and development of quantitative investigation of active tectonics since the 1980s.The focus is on the main efforts and progress made in China on certain aspects of research,such as basic surveys and applied investigation of active tectonics,the study of theories related to regional active tectonics and their kinematics and geodynamics,surveys on coupling relations between deep and shallow structures,active fault surveys and prospecting and seismic hazard assessment in urban areas,as well as the efforts made using Quaternary geochronology.Furthermore,the paper looks back on Chinese quantitative investigation of active tectonics in China and sums up cognitions derived from studies on the determination of several basic and measurable parameters of active tectonics.These parameters include the length of fault and fault segmentation,coseismic slip and cumulative slip,fault slip rate,the sequence of paleoearthquake events and the time elapsed since the most recent event.At the same time,efforts and progress made in China on assessing the long-term seismic potential for active faults and evaluating the risk from potential active fault movement have been reviewed by summarizing research on developing theories,models,methods and the application of time-dependent seismic potential to probabilistic assessment,magnitude estimation for potential earthquakes on active faults,and the forecast of potential risk caused by active fault movement.Finally,in consideration of the realities and problems in the research of active tectonics in China,the authors put forward several suggestions for issues worthy of more attention for further investigation in the future. | Deng Qidong Wen Xueze | 2009 | Earthquake Research in China2009，23，1： | 3 |
| 8 | Research on the Tectonic Environment and Seismogenic Mechanism of the 1927 Gulang Great Earthquake with M=8.0显示文摘In this paper, we discussed the seismotectonic environment of the deep-seated and shallowcrust and seismological and geological model caused the 1927 Gulang great earthquake, basedon the recent research concerning about the active fault, surface rupture, fault planesolution, seismic activity, as well as the deep geophysical exploration data analysis in theepicentral area.The result shows that the 1927 Gulang great earthquake was caused by NE-SW-strikingcompressional thrusting. It was a latest event occurred in the reverse fault-folding belt thatdeveloped along the intracrustal decollement. | Hou Kangming, Deng Qidong and Liu BaichiSeismological Bureau of Jiangsu Province, Nanjing 210014, China Institute of Geology, CSB, Beijing 100029, China Lanzhou Institute of Seismology, CSB, Lanzhou 730000, China | 2000 | Earthquake Research in China2000，14，2： | 2 |
| 9 | Paleoseismology along the range- front fault of Helan Mountains, North Central China显示文摘 | Deng Qidong Liao Yuha | 1996 | Journal of Geophysical Research1996，101，3： | 1 |
| 10 | Crustal Shortening on the margins of the Tian Shan, Xinjiang, China 显示文摘 | Burchfiel B C Brown E T Deng Qidong | 1999 | International Geology Review1999，41，： | 1 |
| 11 | Thrust fault and its formation mechanism in rümqi depression along the northern margin of the Tianshan Mountains显示文摘 | DENG Qidong FENG Xianyue ZHANG Peizheng | 1999 | Earth Science Frontiers1999，6，4： | 1 |
| 12 | Active reverse fault-fold zones and earthquakes along northern Tianshan, Xinjiang, China显示文摘 | DENG Qidong FENG Xianyue ZHANG Peizhen | 1996 | Seismology and Geology1996，，： | 1 |
| 13 | Structure and deformational character of strike-slip fault zones显示文摘 | Qidong Deng Daning Wu Peizhen Zhang Shefa Chen | 1986 | Pure and Applied Geophysics PAGEOPH (-)1986，，1： | 1 |
| 14 | Active reverse fault-fold zones and earthquakes along northem Tianshan, Xinjiang, China显示文摘 | DENG Qidong FANG Xianyue ZHANG Peizhen | 1996 | Seismology and Geology1996，，： | 1 |
| 15 | Basic characteristics of active tectonics in China 显示文摘 | Deng Qidong Zhang Peizhen | 2002 | Science in China ( Series D)2002，32，12： | 1 |
| 16 | Nonlinear characteristics of paleoseismicity in China显示文摘 | Xu Xiwei Deng Qidong | 1996 | Journal of Geophysical Research1996，101，3： | 1 |
| 17 | Learning and Progressing Through Scientific Practices—Commemorating the 90th Anniversary of the Haiyuan Earthquake and Working to Improve the Ability of Earthquake Prediction and Seismic Hazard Reduction显示文摘The great Haiyuan earthquake occurred at 20:06:09 on December 16,1920 in the south of Ningxia Hui Autonomous Region.The magnitude of this earthquake is 8.5,listed as one of the three greatest earthquakes to ever occur in Chinese continent.This devastating earthquake killed about 230,000 people according to previous reports.Recent studies show that total casualties may have reached 270,000.The study of this earthquake using modern scientific and technological methods is the first in the history of earthquake research in China.Significant breakthroughs took place in the middle of last century.The earthquake surface rupture,with 200km in length and prominent left-lateral strike-slip displacement,was discovered.The first monograph on the Haiyuan earthquake was published.In the 1980s,innovative large-scale geological mapping technology for active faults was developed during studies on the Haiyuan earthquake surface ruptures,with the publication of the first large-scale map of the Haiyuan active fault.Quantitative studies were carried out on the fine structure and geometry of the fault zone,Holocene slip rate,co-seismic displacement,paleoearthquake and recurrence intervals and future earthquake risk assessment.The innovative studies also included rupture propagation along the strike-slip fault,evolution of pull-apart basins,determination of total displacement of the strike-slip fault,transition equilibrium between strike-slip displacement along its major strand and crustal shortening at the end of the strike-slip fault,and the mechanism of deformation on Liupan Mountain.On the occasion of the 90th anniversary of the Haiyuan earthquake,careful retrospect of scientific progress achieved during the recent 20 years would be helpful in providing further direction in the study of active faults and earthquake hazard reduction.While taking this occasion to remember those lost by the Haiyuan earthquake,we aim to make greater contributions to earthquake prediction and seismic hazard reduction. | Deng Qidong | 2011 | Earthquake Research in China2011，25，3： | 0 |
| 18 | A New Upsurge in Global Seismicity显示文摘This paper studies the temporal and spatial distribution of great global earthquakes( M W≥8.0) since 1900.We compare the two periods of upsurges of great earthquakes occurring in the middle of last century and beginning of this century.The former period took place between 1950 and 1965 during which 13 great earthquakes( M W≥ 8.0) occurred,including three events with moment magnitude greater than 9.0.The largest magnitude in this period reached 9.6.The latter period starts from the beginning of this century.In less than 12 years,15 great earthquakes have attacked the world with the largest magnitude being M W9.1.On the basis of comparison between these two upsurges of global earthquake activity,we infer that the ongoing high level of earthquake activity may continue for another five years or so.Numerous great earthquakes( M W≥8.0) and many large earthquakes( M W6.0~7.0) will occur globally in these five years.In addition,this paper also discusses the relationships between earthquake activity along the Sumatra segment of the Indian-Australia plate boundary and that in the Bayankala block in the middle of Qinghai-Tibetan plateau as well as in the blocks of the southern plateau.The results indicate that the Qinghai-Tibetan plateau,in particular its middle and southern parts,is a likely place for future earthquakes of magnitude over 7.0. | Deng Qidong | 2013 | Earthquake Research in China2013，27，3： | 0 |
| 19 | An Introduction to the Latest-generation Spatial Database of Active Tectonics of China显示文摘Based on ArcGIS and MapInfo software, we digitized the active tectonics map (1:4,000,000) of China, which was compiled and revised by academician Deng Qidong, and built the spatial database of active tectonics of China. The database integrates rich active tectonic data, such as a catalogue of earthquakes with magnitude above 6.0, active faults, Quaternary basins, active folds and their associated attribute parameters, and implements scientific and effective management to this data. At the same time, the spatial database joins the spatial map data and the associated attribute data together, which implements the data query between spatial properties and attribute parameters and also makes it possible to perform spatial analysis with different data layers. These provide much convenience for earthquake study and allows engineering construction institutions to use this data in practical applications. | Qu Chunyan Deng Qidong | 2009 | Earthquake Research in China2009，23，2： | 0 |
| 20 | Remarks on Urban Active Fault Exploration and Assessment of Fault Activity显示文摘According to the practice of urban active fault exploration and associated fault activity assessment conducted in recent years, this paper summarizes the problems encountered in geological, geomorphological, geochemical and geophysical surveys, and proposes the following means and suggestions to solve these problems. To determine the most recent faults or fault zones, emphasis should be placed on identifying the youngest active faults and offset geomorphology. To understand the history of faulting and to discover the latest offset event, it is suggested that geophysical prospecting, drilling and trenching be conducted on one profile. Because of significant uncertainties in late Quaternary dating, we advise systematic sampling and the use of multiple dating methods. Shallow seismic reflection has been proven to be the most useful method in urban active fault exploration. However, there is a pressing need to increase the quality of data acquisition and processing to obtain high resolution images so as to enhance our ability to identify active faults. The combination of seismic P-wave reflection and S-wave reflection methods is proved to be a powerful means to investigate the tectonic environments of the deep crust. | Deng Qidong Lu Zaoxun Yang Zhu'en | 2008 | Earthquake Research in China2008，22，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员