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    题名 作者 年代 出处 被引量
1LARGE-SCALE STRIKE SLIP FAULT: THE MAJOR STRUCTURE OF INTRACONTINENTAL DEFORMATION AFTER COLLISION显示文摘Intracontinental deformation is one of the most interesting problems in tectonics. But so far little attention has been paid to rock deformation, metamorphism and magmatism related with large-scale displacement and rotation of these blocks. In this note, we take the Ailaoshan-Red River fault (ARF)zone in western Yunnan as an example and discuss the kinematics and dynamics of the fault With its neighbouring blocks in the Tertiary.钟大赉 P. TAPPONNIER 吴海威 张连生 嵇少丞 钟嘉猷 刘小汉 U. SCHAERER R. LACASSIU P. LELOUP 1990Chinese Science Bulletin1990,35,4:23
2Co-seismic ground deformation and source parameters of Mani M7.9 earthquake inferred from spaceborne D-InSAR observation data显示文摘We obtain the co-seismic ground deformation field of the Mani M7.9 earthquake on November 8, 1997 through three-pass differential interferometric processing. Then we get the geometric and kinematics parameters of this event by the elastic half-space model and forward modeling with the InSAR data. The following results have been obtained: (i) The deformation fields on both sides of the seismogenic fault are affected by the co-seismic deformation field even in 110 km away from the fault. The loss of phase coherence belt caused by the zone of ground rupture crosses the image from east to west with a length of an area 110 km. (ii) The maximum horizontal displacement caused by the earthquake reaches 7.96 m. (iii) The earthquake fault can be divided into four parts, and the deformation field of the middle two parts is bigger than that of the other two, with lengths of 27 km and 37 km, respectively. And their average sliding values on the rupture surface are 6500 mm and 6000 mm, respectively, and their depths both are 35 km. The segment of 27 km length is the major rupture surface of this earthquake. The west part and the east part of the fault have lengths of 23 km and 26 km, respectively. The sliding value of the west one is 4000 mm and that of the east one is 5800 mm. They extend to depths of 20 km and 18 km, respectively.SHAN Xinjian1,MA Jin1,WANG Changlin2,LIU Jiahang1,SONG Xiaoyu1 & ZHANG Guifang1 1.Institute of Geology and Laboratory of Tectonophysics,China Seismological Bureau,Beijing 100029,China 2.Institute of Remote Sensing Application,Chinese Academy of Sciences,Beijing 100101,China 2004Science China Earth Sciences2004,47,6:15
3Colluvial 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. ErosiveQidong Deng Peizhen Zhang 2000Chinese Science Bulletin2000,45,17:6
4Experimental study on nucleation process of stick-slip instability on homogeneous and non-homogeneous faults显示文摘The nucleation process of stick-slip instability was analyzed based on the experimental measurements of strain and fault slip on homogeneous and non-homogeneous faults. The results show that the nucleation process of stick-slip on the homogeneous fault is of weak slip-weakening behavior under constant loading point velocity. The existence of a short 'weak segment' on the fault makes slip-weakening phenomenon in nucleation process more obvious, while the existence of a long 'weak segment' on the fault makes the nucleation process changed. The nucleation is characterized by accelerating slip in a local region and rapid increase of shear stress along the fault in this case, which is more coincident with the rate and state friction law. During the period when fault is locked, increasing of shear stress causes lateral elastic dilation near the fault, and the rebound of the dilation at the time of instability causes an instantaneous increase of normal stress in the fault plane, which is an important factor making fault be rapidly locked and its strength recovered.MA Shengli (马胜利) LIU Liqiang (刘力强) MA Jin (马 瑾) WANG Kaiying (王凯英) HU Xiaoyan (扈小燕) LIU Tianchang (刘天昌) WU Xiuquan (吴秀泉) 2003Science China Earth Sciences2003,46,z2:4
5Deep structure and lithospheric shear faults in the East Kunlun-Qiangtang region,northern Tibetan Plateau显示文摘An integrated study of earthquake seismic tomography in the Golmud-Tanggula Pass (west) and Gonghe-Yushu (east) with profiles traversing the East Kunlun-Qiangtang region of the northern Tibetan Plateau shows that the deep structure of the study region has the following characteristics: (1) from south to north the crustal thickness decreases from 70-75 km to 55-66 km, and the variation range of thickness (10 km) in the western part is smaller than that in the eastern part (20 km); (2) the crust has a sandwich-like structure and the middle crust has a lens-shaped low-velocity layer; (3) above 150 km in depth, the physical states of various terranes are marked by alternation of high-velocity and low-velocity bodies; and (4) the discontinuity of the lithospheric structure reveals the existence of three lithospheric shear faults on the the East Kunlun-Qiangtangregion——the South Kunlun-A’nyemaqen lithospheric shear fault, the Jinsha River lithosphericshear fault and the Xianshui River lithospheric shear许志琴 杨经绥 姜枚 李海兵 薛光琦 袁学诚 钱辉 2001Science China Earth Sciences2001,44,S1:4
6The 40Ar/39Ar geochronology constraint and geological significance of mylonites in Shangyi-Chicheng fault belt on the north of North China Craton显示文摘A dating of two biotite samples taken from the meso- and low-temperature myloniteswithin the Shangyi-Chicheng fault belt on the north of the North China Craton yields 40Ar/39Ar iso-topic ages of (399 1) Ma and (263 2) Ma, respectively. These data reflect an Early Devonian deformation and a Late Carboniferous retrograde metamorphism event along the fault, suggesting that the tectonic activities of the North China Craton in Paleozoic should be reconsidered.胡玲 宋鸿林 颜丹平 胡道功 2003Science China Earth Sciences2003,46,11:4
7Study on seismogenesis of the 1997 Jiashi earthquake swarm, western ChinaZhou, SY Chen, XF 2002Progress in Natural Science:Materials International2002,12,1:2
8The 3-D structure of shear wave in South China and the southward extension of Tanlu fault显示文摘By processing the CSND Rayleigh wave data with the matched filter FTAN technique, Rayleigh wave dispersion for southeast China is obtained. The 4°×4°S wave dispersion of the pure path is calculated using random inversion scheme, and 3-D S wave velocity structure is set up. Incorporating the above-mentioned results with wide angle seismic sounding data, we studied structure framework and the extending of faults in this area, which demonstrates that the depth of Moho in South China varies from 30 to 40 km, shallower from west to east. The depth of Moho varies from 25 to 28 km for the offshore. The depth of the asthenosphere in upper mantle varies from 60 to 100 km. The depth difference of layers at the two sides of Tanlu fault is more than 10 km at the south part of the Yangtze River, and the fault extends downward more than 170 km. The fault exceeds the main land at Hainan Island and slips into the southern China Sea. Both Tanlu fault and the huge bend of gravity gradient anomaly are influenced byTENG Jiwen WANG Guangjie ZHANG Zhongjie HU Jiafu 2001Chinese Science Bulletin2001,46,4:2
9Structural framework and its evolution in Chasang area of Qiangtang Basin in northern Tibetan显示文摘Through comprehensive research on the various geophysical and geological data acquired recently, we consider that the Chasang area in the western uplift of Qiangtang is a huge south-dipping block which is overlapped by several east-west trending blocks rather than a simple and palaeo-doming existing for a long time. The structural and geophysical features of the area, which only alone limited between Shuanghu and Rongma districts, are of no regional significance. Their development is closely related with the approximately south-north trending transform faults developed during the Mesozoic era on the east and west sides of the area and their later continuous movement. The compressing, overlapping and uplifting of the Chasang area began at the stage of reversing of the Qiangtang Basin during the Lower Cretaceous, which is in direct relation with Bangonghu-Dingqing limited ocean’s closure and the convergence of the neighboring blocks. The compression and overlapping of the area have further developed and刘池洋 杨兴科 任战利 赖绍聪 陈刚 赵红格 魏永佩 郑孟林 王成善 2001Science China Earth Sciences2001,44,S1:1
10The fine velocity structure of sediment-base-ment layer in the Three-GorgesRegionoftheChangjiangRiver(YangtzeRiver)显示文摘Thefinevelocitystructureofsediment┐base┐mentlayerintheThree┐GorgesRegionoftheChangjiangRiver(YangtzeRiver)HONG-XIANGHU(胡鸿翔),...胡鸿翔 边银菊 高世玉 1996Acta Seismologica Sinica(English Edition)1996,9,3:0
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