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The Earth's inner core deviation to plate movement

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Chinese Science Bulletin 2001年第19期46卷 1585-1589页

作者： Dinghua Huang Jinping Wu Yichun Duan Hao Guo Heng Zhang Lingqing Yao Fan Zhang Bin Li Junhui Wang Hongfu Yin The Faculty of Earth Science China University of Geosciences Wuhan China The Ministry of Land and Resources of China Beijing China

Under the premise of the Earth’s layer structure and mass distribution, the solid inner core cannot be stable in the center of the sphere. Thus, the deviation of the inner core is towards the sphere’s center and the liquid outer core must have asymmetrical thermal convection. Based on the two suggestions, a concise and self-consistent global motion model can be built. The model consists of the following cycle: an asymmetrical thermal convection structure in the outer core led by the dislocation of the inner core→the plume is in special upwell position because of differential activation→the formation and split of lithosphere→the split plates drift and assemble in a new location, the mass of which causes the inner core to deviate towards this direction again→the new asymmetry is formed. As this circulation continues, a definite and periodical motion emerges/forms. Its nonlinear features result in the Earth’s motion with simple mechanisms but complex behavior. Ultraterrestrial events may disturb or

关键词： inner-core’s deviation plate novement mantle convection new model of global movement.

Discovery and character of the Kunlun-Yellow River movement

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Chinese Science Bulletin 1998年第10期43卷 833-836页

作者： CUI Zhijiu 1, WU Yongqiu 2,3 and LIU Gengnian 1 1. Department of Geography, Peking University, Beijing 100871, China 2. Open Research Laboratory of Environmental Changes and Natural Disaster of State Education Commission, Beijing 100875, China Department of Geography Peking University Beijing China Open Research Laboratory of Environmental Changes and Natural Disaster of State Education Commission Beijing China Department of Geography Sichuan Normal Uni-versity Chengdu China

Based on geomorphological, tectonic and sedimentary data, a Kunlun Yellow River Tectonic movement.has been recognized in 1 10-0 60 Ma B.P. This tectonic movement. which leads to uplift of the Qinghai_Xizang (Tibet) Plateau from 1 500 to 3 000-3 500 m, is periodic, abrupt and changeable in the movement.rate of uplifting and slide slipping.

关键词： Kunlun Mountain Pass 700 kaB.P. tectonic movement.

Molecular fluctuation in living cells

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Science China(Life Sciences) 1997年第1期40卷 27-34页

作者：唐孝威 Institute of High Energy Physics Chinese Academy of Sciences Beijing 100039 China

The concept of molecular fluctuation in living cells is introduced. Many apparently different experi-mental facts in living cells, including the velocity non-uniformity of organelle movement. the saltatory movement.of transport vesicles in axoplasmic transport, the chromosome oscillation during metaphase in mitosis and the pauses in the chromosome movement.during anaphase are explained using a unified viewpoint. A method of determination of average number of the attached motor protein molecules from the experimental data is also proposed.

关键词： molecular fluctuation motor protein molecules organelle movement movement of transport vesicles chromosome movement.

Comparison of eastern paleo-Tethyan ophiolites and its geodynamic significance--Evidence from Dur'ngoi ophiolite

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Science China Earth Sciences 2004年第4期47卷 378-384页

作者： CHEN Liang1,2, SUN Yong1,2, PEI Xianzhi2, Feng Tao2 & Zhang Guowei2 1. Open Laboratory of Continental Dynamics, Ministry of Education, Northwest University, Xi抋n 710069, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Open Laboratory of Continental Dynamics Ministry of Education Northwest University Xi’an 710069 China Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China

Nd-Pb isotopic geochemistry of metabasalt from Dur抧goi ophiolite, Qinghai Prov-ince, NW China reveals the presence of DMM mixing with EMII components in its upper mantle source, which is comparable with present Indian MORB. Comparisons indicate that the geo-chemistry, chronology and source characteristics of Dur抧goi ophiolite coincide with Pa-leo-tethyan ophiolites from 揝anjiang?area. Together with evidences from regional geology in adjacent areas, this study proves that independent paleo-tethyan basins evolved contemporarily, the dynamics of which is attributed to the interaction of mantle plume with over-riding lithosphere.

关键词： ophiolite, Paleo-Tethys, DUPAL anomaly, Indosinian movement.

Auditory response and intrinsic link with sound-production in singing male cicada

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Science China(Life Sciences) 1998年第6期41卷 576-583页

作者：杨新宇陈浩徐慕玲蒋锦昌 1. Institute of Biophyslcs Chinese Academy of Sciences 100101 Belling China

In the black cicada (C. atrata Fabricius ), the quiescent males are sensitive to stimulating sound pulses of about 70 dB (SPL); the latent periods and amplitudes of compound action potentials of the auditory nerve ( called"auditory nerve potential (AP)" for short) which are corresponding one by one to stimulating sound pulses are (3 92±0 28) ms and (0 32±0 22) mV on an average, respectively. Although the singing males are nonreactive to outside stimulating sound_pulses, they are still sensitive to calling pulses mingling in stimulating sound_pulses; the latent periods and amplitudes of auditory nerve potentials are (4 16±0 43) ms and (0 46±0 25) mV, respectively. In singing males the negative potential before each auditory nerve potential characterizes that the intrinsic link exists between sounding and auditory nerve system.

关键词： quiescent and singing male cicada auditory response intrinsic link with sounding movement.

Laser probe ^(40)Ar/^(39)Ar dating of mica on the deformed rocks from Altyn Fault and its tectonic implications,western China

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Chinese Science Bulletin 2001年第4期46卷 322-325页

作者： LIU Yongjiang, YE Huiwen, GE Xiaohong, CHEN Wen, LIU Junlai, REN Shoumai & PAN HongxunCollege of Earth Sciences, Changchun University of Science and Technology, Changchun 130061, China Graduate School, China University of Geosciences, Beijing 100083, China Laboratory of Isotopic Geochronology, Institute of Geology, Ministry of Land and Resources of China, Beijing 100037, China College of Earth Sciences Changchun University of Science and Technology Changchun China Graduate School China University of Geosciences Beijing China Laboratory of Isotopic Geochronology Institute of Geology Ministry of Land and Resources of China Beijing China

The samples of Caledonian mylonitized granite and Jurassic meta-sedimentary rocks were collected in the north of Dangjinshan Pass, Qaidam gate fault-valley and Gesi fault-valley. Detailed studies under the microscope and electronic microscope suggest that all the samples contain the syntectonic-growing minerals such as white mica, chlorite, sericite, biotite, etc. By dating these minerals, we got a group of 40Ar/39Ar laser probe isochronal ages of 89-92 Ma and apparent ages of (46.6±6.4) Ma. The ages ranging from 97 to 46 Ma were reported for the first time in the isotopic dating researches of the Altyn Fault The isochronal age group of (98-89) Ma indicates that a ductile strike-slip event, with low-grade metamorphism, began in late Cretaceous. This suggests that the strike-slip movement.of the Altyn Fault should be related to the formation of the so-called west tectonic syntaxis in the Nepal-western Kunlun area.

关键词： Altyn Fault 40Ar/39Ar age strike-slip movement.

The Measurement of Regional Crustal Deformations With Simultaneous Range Difference (SRD) Method

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Science China Mathematics 1994年第11期37卷 1378-1386页

作者：朱文耀冯初刚滕展明朱元兰 Shanghai Astronomical Observatory Academia SinicaShanghai 200030PRC

Using laser ranging observations of the LAGEOS satellite collected during 1985 - 1990,the change rate of he baseline vector between the QUINCY and MNPEAK stations has been estimated with the SRD *** results aredBx = -15.0 3.4 mm/a,dBy=20.2 2.5 mm/a,dBz=15.2 2.6mm/a,dB = -26.9 2.1 mm/*** standard error (repeatability) of the baseline length determined by one day observation is 3.0 mm,or *** results show that this method does offer a good alternative for studying regional crustal deformation with high accuracy and especially with high temporal resolution.

关键词： SLR SRO crustal movement.

Establishment of the GPS Monitoring Network in North China, the Relation of Horizontal Crustal movement.to Stress Field and Seismicity

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Earthquake Research in China 1998年第4期12卷 30-39页

作者： Li Yanxing, Hu Xinkang, Zhao Chengkun, Wang Min, Guo Liangqian, and Xu JushengFirst Crustal Deformation Monitoring Center, China Seismological Bureau, Tianjin 300180, China Institute of Seismology, China Seismological Bureau, Wuhan 430071, China

In the paper, the establishment, measurement, data-processing program and monitoring accuracy of the GPS seismic monitoring network in North China, especially in the Capital-Circle area, have been presented briefly. The relation of horizontal crustal deformation to tectonic movement. stress-field variation and seismicity has been analyzed in detail. The results indicate that the accuracy of GPS measurement has reached the order of 10-9 and the annual rate of horizontal crustal deformation in North China is about 4 ~5 mm. Horizontal crustal movement.is a direct indication of the regional stress field. Therefore, by monitoring the time-sequence variation of horizontal crustal motion, it would be possible to investigate the change in the stress field, to analyze the tendency of seismicity and to determine the seismogenic zones.

关键词： GPS network establishment Accuracy analysis Study of horizontal deformation field Tectonic movement.

Ground Temperature-increase Anomalies Before 1976 Tangshan Earthquake

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Chinese Science Bulletin 1993年第11期38卷 940-946页

作者：强祖基徐秀登赁常恭王弋平 Institute of Geology State Seismological BureauBeijing 100029 PRC Department of Geography Zhejiang Normal University Jinhua 321004 PRC Satellite Meteorological Center State Meteorological Administration Beijing 100081 PRC Institute of Geology State Seismological Bureau Beijing 100029 PRC

Earthquakes are the results of rapid tectonic motion and last release of strain energy. Heat is the general expression of various motions and energies. The comprehensive analysis on the data of the ground temperature and satellite thermal infrared pattern of more than 20 earthquakes with M_s>5.0 that occurred in China since 1989 shows that there

关键词： Tangshan earthquake ground temperature-increase anomalies plate movement.