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Two conceptual models of displacement transfer and examples

Science China Earth Sciences 2005年第7期48卷 900-911页

作者： GUAN Shuwei1,2, WANG Xin2, YANG Shufeng2, HE Dengfa1 & ZHAO Weidong3 1. Research Institute of Petroleum Exploration and Development, Beijing 100083, China 2. Department of Geosciences, Zhejiang University, Hangzhou 310027, China 3. Tarim Oilfield Company, Korla 841000, China Research Institute of Petroleum Exploration and Development Beijing 100083 China Department of Geosciences Zhejiang University Hangzhou 310027 China Tarim Oilfield Company Korla 841000 China

This paper presents two conceptual models of displacement transfer, reverse sym- metry model and infinitely equal division model, based on the fault-bend folding theory. If the fault shape is held constant in the trend, then the distribution of slip magnitude, geometry of imbricate structures and its axial surface map all display reverse symmetry on the process of displacement transfer, as called reverse symmetry model in this paper. However, if the ramp height of thrust fault decreases gradually along its strike, the displacement is postulated to be equally and infinitely divided to every thrust that is formed subsequently, this kinematic process is described using infinitely equal division model. In both models, displacement transfer is characterized by the regular changes of imbricate thrusting in the trend. Geometric analysis indicates that the displacement transfer grads can be estimated using the tangent of deflective angle of hinterland structures. Displacement transfer is often responsible for the distortion and branching of the surface anticlines, especially in the region where the multi-level detachment structures is developed. We also present some examples from the frontal structures of the Southern Tianshan fold-and-thrust belt, Xinjiang, China. Displacement transfer between deep imbricate thrusts in the middle segment of Qiulitag anticline zone causes the Kuqatawu and Southern Qiulitag deep an- ticlines left-lateral echelon. The region, where these two deep anticlines overlap, is characterized by duplex structures, and extends about 18 km. The shallow anticline is migrated southward displaying obvious “S” form in this area.

关键词： displacement transfer fault-bend folding reverse symmetry model infinitely equal division model Qiulitag zone.

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Geological and geochemical and genetic studies of Yuxi silver deposit in east Tianshan, Xinjiang

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Chinese Science Bulletin 1999年第S2期44卷 10-11页

作者： CHEN Shizhong~(1,2), ZHOU Jiyuan~2, CUI Binfang~2, XIAO Huiliang~2 and GU Lianxing~1 1. Nanjing University, Nanjing 210008, China 2. NIGMR, Nanjing 210016, China Nanjing University Nanjing 210008 China NIGMR Nanjing 210016 China

1 Geology Yuxi silver Deposit is located at mountain area of Tuzileike Salt 152 km south to the Hami in XinjiangAutonomous Region. The ore is of the medium size and may be expected to be larger. Its geotectonicbackground belongs to Middle Tianshan crystalline block. The southeast part of regional Yuxi fracturezone, which is made up of a series of secondary faults and slivers-containing fragment tiering, ductileshear zones, and fracture zones, crosses the orefield. The exposed rocks in the orefield are mainly MiddleProterozoic Xingxingxia Group (Chxn), Kawabulak Group (Jxkw) and Upper Permian Darequanzi Formation. Kawabulak Group is a mineralizing wall rock, which is composed of magnesium-rich carbonate andunderwent high greenschist facies metamorphism. It is divided into five laryers by rock. Silver mineraliza-

关键词： genesis Yuxi silver deposit east Tianshan.

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Ice Surface-Elevation Change and Velocity of Qingbingtan Glacier No.72 in the Tomor Region,Tianshan Mountains,Central Asia

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Journal of Mountain Science 2011年第6期8卷 855-864页

作者： WANG Puyu LI Zhongqin LI Huilin WANG Wenbin WANG Feiteng College of Geography and Environment Science Northwest Normal University Lanzhou 730070 China State Key Laboratory of Cryospheric Sciences Cold and Arid Region Environment and Engineering Research Institute/Tianshan Glaciological Station Chinese Academy of Sciences Lanzhou 730000 China

Glaciers in the Tomor region of Tianshan Mountains preserve vital water resources. However, these glaciers suffer from strong mass losses in the recent years because of global warming. From 2008 to 2009, a large-scale scientific expedition has been carried out in this region. As an individual reference glacier, the tongue area of Qingbingtan glacier No. 72 was measured by the high precise Real Time Kinematic-Global Position System （RTK-GPS）. In this paper, changes of the tongue area of Qingbingtan glacier No.72 has been studied based on topographic map, remote sensing image and the survey during 2008-2009 field campaign. Results indicated that the ice surface-elevation of the tongue area changed - 0.22~0.14 m a-1 from 1964 to 2008. The estimated loss in ice volume was 0.0144-0.009 km3, which represented a ~20 % decrease from the 1964 volume and was equivalent to average annual mass balance of -0.204-0.12 m water equivalent for the tongue area during 1964-2oo8. Terminus retreated by 1852 m, approximately 41 m a-1, with the area reduction of 1.533 km2 （0.034 km2 a-0 from 1964 to 2009. Furthermore, the annual velocity reached to -70 m a-1. Comparing with the other monitored glaciers in the eastern Tianshan Mountains, Qingbingtan glacier No.72 experienced more intensive in shrinkage, which resulted from the combined effects of climate change and glacier dynamic, providing evidence of the response to climatic warming.

关键词： Ice surface-elevation change Ice velocity Qingbingtan glacier No70 Tomor region TianshanMountains

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New Advances in ACL Surgery——Navigation and Dynamic Kinematic Outcome Assessment

New Advances in ACL Surgery——Navigation and Dynamic Kinema...

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2009年中国运动医学与关节镜外科学术大会

作者： km Chan Department of Orthopaedics ＆ Traumatology Prince of Wales Hospital The Chinese University of Hong Kong

＜正＞The current controversies centre on the need for anatomical double bundle ACL reconstruction has certainly raised a great deal of *** should take note of the fact that majority of the biomechanical advantage of an anatomical double bundle reconstruction was essentially done in cadaveric models;there is definitely a need to look at the real life situation with dynamic kinematic study.

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一种土体位移三维分析：桑德贝隧洞

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隧道译丛 1993年第3期 20-35页

作者： lee,km 袁文忠

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Early Arthroscopic Bankart Repair for First Time Anterior Shoulder Dislocation——The Rationale and Preliminary Experience

Early Arthroscopic Bankart Repair for First Time Anterior Sh...

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2009年中国运动医学与关节镜外科学术大会

作者： CHAN km Department of Orthopaedics and Traumatology The Chinese University of Hong Kong

＜正＞Introduction:To discuss the rationale and to evaluate the surgical outcomes of patients with early arthroscopic Bankart repair after first time anterior shoulder ***:From July 2002 to December 2005,38 patients of less than 30 years old,with first time anteroinferior shoulder dislocation and treated with immediate arthroscopic stabilization within one week

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Deep tectonic setting of the 2008 Wenchuan M_s8.0 earthquake in southwestern China―Joint analysis of teleseismic P-wave receiver functions and Bouguer gravity anomalies

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Science China Earth Sciences 2009年第2期52卷 166-179页

作者： LOU Hai1, WANG ChunYong1, L ZhiYong2, YAO ZhiXiang1, DAI ShiGui2 & YOU HuiChuan1 1 Institute of Geophysics, China Earthquake Administration, Beijing 100081, China 2 Earthquake Administration of Sichuan Province, Chengdu 610041, China Institute of Geophysics China Earthquake Administration Beijing China Earthquake Administration of Sichuan Province Chengdu China

Teleseismic P-wave receiver functions at 20 broadband seismic stations in the Longmenshan fault zone (LMFZ) and its vicinity were extracted, and the crustal thickness and the P- and S-wave velocity ratio were calculated by use of the H-k stacking algorithm. With the results as constraints, the S-wave ve-locity structures beneath each station were determined by the inversion of receiver functions. The crustal structure of the Rear-range zone is similar to that of the Songpan-Garze Block, whereas the velocity structure of the Fore-range zone resembles that of Sichuan Basin, implying that the Central Principal Fault of LMFZ is the boundary between the eastern Tibetan Plateau and the Yangtze Block. Lower velocity zone exists in lower crust of the Songpan-Garze Block and the central-southern seg-ment of the Rear-range zone, which facilitates the detachment of the material in upper and middle crust. Joint analysis of the receiver functions and the Bouguer gravity anomalies supports the thesis on the detachment-thrust mode of the LMFZ. A double-detachment pattern is suggested to the tectonic setting in the Songpan-Garze Block. The upper detachment occurs at the depth of 10-15 km, and represents a high-temperature ductile shear zone. There is a lower detachment at the depth of about 30 km, below which the lower crust flow exists in the eastern Tibetan Plateau. Interpretation of the Bouguer gravity anomalies indicates that the Sichuan Basin is of higher density in upper and middle crust in compari-son with that of the Songpan-Garze Block. The LMFZ with higher density is the result from the thrusting of the Songpan-Garze Block over the Sichuan Basin. In the lower crust, higher P velocity and higher density in the Sichuan Basin are related to more rigid material, while lower S velocity and lower density in the Songpan-Garze Block are related to the softened and weakened material. The higher density block beneath the Sichuan Basin obstructs the eastward flow of lower crustal ma

关键词： Longmenshan fault zone (LMFZ) Wenchuan Ms8.0 earthquake deep tectonic setting teleseismic receiver function

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MESH-FREE SIMULATION FOR COMPRESSION AND TWISTING BUCKLING OF SWCNTS USING HIGHER ORDER CAUCHY-BORN RULE

MESH-FREE SIMULATION FOR COMPRESSION AND TWISTING BUCKLING O...

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庆祝中国力学学会成立50周年暨中国力学学会学术大会’2007

作者： LIEW km Department of Building and Construction The City University of Hong Kong Center for Applied Computing and Interactive Media The City University of Hong Kong

Mesh-free method is employed to study the compression and twisting buckling ofsingle-walled carbon nanotubes(SWCNTs) through considering the effect of the second-order deformation *** analysis is based on a hyper-elastic constitutive model derived from the higher order Cauchy-Born rule that can accurately describe the deformation of the atomic-scale lattice *** compression and torsion tests are numerically

关键词： carbon nanotubes continuum simulation mesh-free method higher order Cauchy-Born rule buckling

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Evaluation of non-point source pollution reduction by applying Best Management Practices using a SWAT model and QuickBird high resolution satellite imagery

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Journal of Environmental Sciences 2010年第6期22卷 826-833页

作者： MiSeon lee GeunAe Park MinJi Park JongYoon Park JiWan lee SeongJoon Kim Department of Rural Engineering Konkuk University Department of Civil and Environmental System Engineering Konkuk University

This study evaluated the reduction effect of non-point source pollution by applying best management practices （BMPs） to a 1.21 km^2 small agricultural watershed using a SWAT （Soil and Water Assessment Tool） model. Two meter QuickBird land use data were prepared for the watershed. The SWAT was calibrated and validated using dally streamflow and monthly water quality （total phosphorus （TP）, total nitrogen （TN）, and suspended solids （SS）） records from 1999 to 2000 and from 2001 to 2002. The average Nash and Sutcliffe model efficiency was 0.63 for the streamflow and the coefficients of determination were 0.88, 0.72, and 0.68 for SS, TN, and TP, respectively. Four BMP scenarios viz. the application of vegetation filter strip and riparian buffer system, the regulation of Universal Soil Loss Equation P factor, and the fertilizing control amount for crops were applied and analyzed.

关键词： QuickBird land use Soil and Water Assessment Tool best management practice non-point source

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Impact of Horizontal Resolution and Cumulus Parameterization Scheme on the Simulation of Heavy Rainfall Events over the Korean Peninsula

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Advances in Atmospheric Sciences 2011年第1期28卷 1-15页

作者： Seung-Woo lee Dong-Kyou lee Dong-Eon CHANG School of Earth and Environmental Sciences Seoul National University National Institute of Meteorological Research Korea Meteorological Administration

In this paper, we present the results from high-resolution numerical simulations of three heavy rainfall events over the Korean Peninsula. The numerical results show that the prediction accuracy for heavy rainfall events improved as horizontal resolution increased. The fine-grid precipitation fields were much closer to the real precipitation fields in the case of large synoptic forcing over the Korean Peninsula. In the case of large convective available potential energy and weak synoptic forcing, it seems that even when using a high resolution, the models still showed poor performance in reproducing the observed high precipitation amounts. However, activation of the cumulus parameterization scheme in the intermediate resolution of 9 km, even at a grid spacing of 3 km, had a positive impact on the simulation of the heavy rainfall event.

关键词： high resolution cumulus parameterization scheme heavy rainfall numerical simulation

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