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Characteristics and origin of mafic and ultramafic xenoliths in trachyandesite lavas from Heikongshan volcano,Tengchong,Yunnan province,china

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Science china Earth Sciences 2010年第9期53卷 1295-1306页

作者： YU HongMei, LIN ChuanYong, SHI LanBin, XU JianDong & CHEN XiaoDe Institute of Geology, china earthquake administration, Beijing 100029, china 1. Institute of Geology China Earthquake Administration Beijing 100029 China

The trachyandesite lavas from Heikongshan volcano of the Tengchong volcanic cluster, Yunnan province contain relatively abundant mafic and ultramafic small xenoliths comprising mainly gabbro, pyroxenite and rare lherzolites, all less than 2.5 cm in size. Gabbro xenoliths are characterized by "open" texture represented by relatively abundant vesicles and ground-mass fillings, while pyroxenite xenoliths are characterized by equigranular and poikilitic texture. Their mineral compositions (clinopyroxene ± orthopyroxene ± plagioclase) are similar to those of phenocrysts in lavas, and their equilibration temperature (1000-1125°C) is consistent with the crystallization temperature of the phenocrysts (998-1108°C). Thus, the textures and compositions of these xenoliths are different from those of lower crustal and mantle xenoliths, and were derived from the magma chamber. Among them, the gabbroic xenoliths come from the crystal-bubble-liquid zone at the top of the magma reservoir, while the pyroxenite xenoliths come from the cumulates in the bottom of magma reservoir. The studied single lherzolite xenolith with porphyroclastic texture has similar mineral compositions to the mantle xenoliths from eastern china, and is considered to be of upper mantle origin. It was brought into magma reservoir by replenishment magma, and might have experienced a cooling event before eruption. The formation of xenoliths in trachyandesite flows largely reflects the ascent, storage, evolution and eruption processes of magma.

关键词： magma chamber xenoliths geothermo-barometry trachyandesite Heikongshan volcano Tengchong

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Surface deformation at the epicenter of the May 12,2008 Wenchuan M8 earthquake,at Yingxiu Town of Sichuan province,china

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Science china(Technological Sciences) 2008年第S2期51卷 154-163页

作者： DONG ShaoPeng,HAN ZhuJun & AN YanFen National Center of Seismic Fault Study,Institute of Geology,china earthquake administration,Beijing 100029,china 1. National Center of Seismic Fault Study Institute of Geology China Earthquake Administration Beijing 100029 China

Surface deformation,along National Highway 213 at the epicenter of Wenchuan M8 earthquake,at Yingxiu Town of Sichuan province,china,is surveyed and measured in *** results show two distinct *** is that no horizontal displacement displays,or dextral strike-slip component at the observation point can not be found basically,the other is that uplift amount is 2.72 m,and the short-ening amount is 0.38 m,which reflects thrust shortening deformation is not *** crust uplift amount of 2.71 m is distributed in a belt with width of 60 *** model of lower crustal flow proposed by Royden et al.(1997) about the dynamic process in eastern margin of the Tibetan Plateau seems more suitable to explain the seismic surface deformation characteristics at Yingxiu Town,the epicenter of the May 12,2008 Wenchuan M8 earthquake.

关键词： Wenchuan M8 earthquake Yingxiu Town surface deformation

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Beautiful scenery of Huanglong

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Journal of Environmental Sciences 1992年第1期4卷 125-126页

作者： The Huanglong administration Bureau, Sichuan province, china

Huanglong is located between 103°44′ -104°3′ Lon. W. of Greenwich, and 32°41′-32°54′ Lat. N. of the Equator, in Sichuan province, china. It is a neighbor of world-famous Jiuzhaigou, with an area of 40,000 hectares. The karst landscape of Huanglong is spectacular, with over 3,400 multicolored pools reflecting surrounding peaks, trees and waterfalls in an unending scroll. The 3.5-kilometer yellow-sand road is like a golden dragon flying up the snowy mountain, and from a distance the colored pools look like dragon scales. So, it is called

关键词： Beautiful scenery of Huanglong

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Substation Intelligent Monitoring System Based on Pattern Recognition

Substation Intelligent Monitoring System Based on Pattern Re...

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2010 The 3rd International Conference on Computational Intelligence and Industrial Application (PACIIA2010)

作者： ShuMin Liu nanchang campus jiangxi University of Science and Technology nanchang city east street of shuanggang NO.1180 jiangxi province china XuJuan Xu educational administration Schools of Civil Affairs of jiangxi province nanchang city east street of shuanggang NO.1180 jiangxi province china

Pattern recognition technology is a new intelligent science with a wide range of applied .It can be applied in a variety of intelligent control and monitoring areas. According to the technical characteristics of pattern recognition, it can be used in substations video surveillance *** show that this control method can effectively deal with the increasing workload of the substation monitoring of tasks, but can also greatly improve the control accuracy and reduce cost. This paper briefly discusses the basic principles of pattern recognition, and then introduces some commonly used pattern recognition method, And applies them to the specific substation control and inspection process respectively.

关键词： pattern recognition unattended Substation Monitoring illegal intruder.

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Velocity structure and active fault of Yanyuan-Mabian seismic zone―The result of high-resolution seismic refraction experiment

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Science china Earth Sciences 2008年第9期51卷 1284-1296页

作者： WANG FuYun1↑, DUAN YongHong1, YANG ZhuoXin1, ZHANG ChengKe1, ZHAO JinRen1, ZHANG JianShi1, ZHANG XianKang1, LIU QiYuan2, ZHU AiLan2, XU XiWei2 & LIU BaoFeng1 1 Geophysical Exploration Center, china earthquake administration, Zhengzhou 450002, china 2 Institute of Geology, china earthquake administration, Beijing 100029, china 1. Geophysical Exploration Center China Earthquake Administration Zhengzhou 450002 China 2. Institute of Geology China Earthquake Administration Beijing 100029 China

The authors processed the seismic refraction Pg-wave travel time data with finite difference tomography method and revealed velocity structure of the upper crust on active block boundaries and deep features of the active faults in western Sichuan province. The following are the results of our investigation. The upper crust of Yanyuan basin and the Houlong Mountains consists of the superficial low-velocity layer and the deep uniform high-velocity layer, and between the two layers, there is a distinct, and gently west-dipping structural plane. Between model coordinates 180-240 km, P-wave velocity distribution features steeply inclined strip-like structure with strongly non-uniform high and low velocities alternately. Xichang Mesozoic basin between 240 and 300 km consists of a thick low-velocity upper layer and a high-velocity lower layer, where lateral and vertical velocity variations are very strong and the interface between the two layers fluctuates a lot. The Daliang Mountains to the east of the 300 km coordinate is a non-uniform high-velocity zone, with a superficial velocity of approximately 5 km/s. From 130 to 150 km and from 280 to 310 km, there are extremely distinct deep anomalous high-velocity bodies, which are supposed to be related with Permian magmatic activity. The Yanyuan nappe structure is composed of the superficial low-velocity nappe, the gently west-dipping detachment surface and the deep high-velocity basement, with Jinhe-Qinghe fault zone as the nappe front. Mopanshan fault is a west-dipping low-velocity zone, which extends to the top surface of the basement. Anninghe fault and Zemuhe fault are east-dipping, tabular-like, and low-velocity zones, which extend deep into the base-ment. At a great depth, Daliangshan fault separates into two segments, which are represented by drastic variation of velocity structures in a narrow strip: the west segment dips westward and the east segment dips eastward, both stretching into the basement. The east margin f

关键词： western Sichuan high-resolution seismic refraction active fault velocity structure of the upper crust

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Analysis of the co-seismic responses of the fluid well pattern system in Jiangsu province to the Wenchuan and Tohoku earthquakes

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earthquake Science 2012年第3期25卷 263-274页

作者： Jiangrong Zheng1, Haolin Jiang1 and Zhengran He2 1 earthquake administration of Jiangsu province, Nanjing 210014, china 2 School of Information Science and Engineering, Southeast University, Nanjing 210049, china 1. earthquake administration of Jiangsu province Nanjing 210014 China2. School of Information Science and Engineering Southeast University Nanjing 210049 China

This thesis discusses the earthquake reflecting ability of the observation well pattern system of Jiangsu province, china, which has been digitally renovated, and probes into the cause of the major differences in the earthquake reflecting abilities of well holes at different measurement points. This is achieved through the analysis of the co-seismic responses to the Wenchuan (2008; Ms8.0, china) and Tohoku (2011; Ms9.0, Japan) earthquakes. We found that the co-seismic response of water level from regional well holes in Jiangsu province was stronger than that of water temperature. The water-level co-seismic response follows a consistent law and is closely related to the earthquake magnitude. The co-seismic response of water temperature strongly varied among well points, and was more often manifested as a slow restorative change. The co-seismic responses also varied based on tectonic elements. The response in central and northern Jiangsu was weaker than that of southern Jiangsu, possibly due to the thicker loess cover layer in central Jiangsu which makes it less effective at capturing the micro-changes of stress-strain states relative to the hilly land in the south. The more complicated geological structure in southern Jiangsu makes it contribute to greater changes in the state of underground water after a minor disturbance.

关键词： fluid well pattern system 2008 Ms8.0 Wenchuan earthquake 2011 MS9.0 Tohoku earthquake features of co-seismic responses

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Research on the Logistics Outsourcing Based on E-commerce

Research on the Logistics Outsourcing Based on E-commerce

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2011 International Conference on Business Management and Electronic Information(BMEI 2011)

作者： Guoping JI Wenhui LIU School of Business administration.nanchang Institute of Technology nanchang Institute of Technology NIT nanchang City jiangxi province china

The logistics outsourcing is one kind of enterprises’ developing strategy pattern which is developed quickly at ***,the article analyzed the intrinsic relationship of ecommerce logistics ***,the author described the main problems in the logistics outsourcing based on e-commerce via the survey and case analysis ***,based on the above analysis,the author explored the effective strategies of the logistics outsourcing based on *** article is of great help to provide some ideas of the logistics outsourcing based on ecommerce.

关键词： Logistics outsourcing E-commerce Effective strategies

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Geophysical survey on the tectonic and sediment distribution of Qinghai Lake basin

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Science china Earth Sciences 2006年第8期49卷 851-861页

作者： AN Zhisheng1, WANG Ping2, SHEN Ji3, ZHANG Yixiang2, ZHANG Peizhen4, WANG Sumin3, LI Xiaoqiang1, SUN Qianli1, SONG Yougui1, AI Li1, ZHANG Yechun2, JIANG Shaoren2, LIU Xingqi3 & WANG Yong31. Institute of Earth Environment, Chinese Academy of Sciences (CAS), Xi’an 710075, china 2. South china Sea Institute of Oceanology, CAS, Guangzhou 510301, china 3. Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, china 4. Institute of Geology, china earthquake administration, Beijing 100029, china 1. Institute of Earth Environment Chinese Academy of Sciences (CAS) Xi’an 710075 China 2. South china Sea Institute of Oceanology CAS Guangzhou 510301 China 3. Nanjing Institute of Geography and Limnology CAS Nanjing 210008 China 4. Institute of Geology China Earthquake Administration Beijing 100029 China

The intensive geophysical survey of Qinghai Lake reveals the buried depth of lake sediments and their distribution features. The result indicates that there are three important inter- phases of Qinghai Lake sediments: T1 is the rife interphase of the lake, above which sediments are spread all over the lake basin with roughly the same thickness; T5 is the interphase from which the neotectonic sedimentary cycle begins, and its above sedimentary environment is relatively stable; Tg is the base of the lake basin. Five west-northwest (WNW) fault belts defined the tectonic structure of Qinghai Lake basin: the central hunch around Haixin Shan with two subbasins both in its north and south. The thickness of the lake sediments varies at different places, the thickest sediments are found within the two subbasins. According to the depth that the Sparker System can reach, sediment in the northern subbasin is deeper than 560 m, while sediment in the southern subbasin is deeper than 700 m. The correlation between the seismic sequence stratigraph and the lithology of onshore core shows that Qinghai Lake sediments consist of muddy silt, clay silt, silty clay, gravel silty clay, etc.

关键词： sediment, geophysical survey, Qinghai Lake.

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Three-year changes of surface albedo of degraded grassland and cropland surfaces in a semiarid area

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Chinese Science Bulletin 2008年第8期53卷 1246-1254页

作者： LIU HuiZhi1↑, TU Gang2,3 & DONG WenJie4 1 State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chi- nese Academy of Sciences, Beijing 100029, china 2 Laboratory of Research for Middle-High Latitude Circulation System and East Asia Monsoon, china Meteorological administration, Changchun 130062, china 3 Institute of Meteorological Science of Jilin province, Changchun 130062, china 4 National Climate Center, Beijing 100081, china State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Laboratory of Research for Middle-High Latitude Circulation System and East Asia Monsoon China Meteorological Administration Changchun China Institute of Meteorological Science of Jilin province Changchun China National Climate Center Beijing China

Diurnal, seasonal and interannual variations of surface albedo of degraded grassland and cropland surfaces at a semiarid area of Tognyu have been investigated based on the continuous three years observational data from 2003 to 2005. The changes of surface albedo with solar elevation angle and soil moisture have been discussed also. It has been found that surface albedo has almost the same diurnal and seasonal variations on degraded grassland and cropland surfaces in the semiarid area, while sur- face albedo is large in winter and small in summer. The diurnal variation of the surface albedo has re- lationship with the weather condition. The diurnal cycle of the surface albedo likes the "U" shape curve in sunny day, while it is low-high after the rain, and high-low after the snow. The surface albedo has large variation in cloudy day, while it has no any variation in overcast day. The large difference of the surface albedo can be 0.04 in winter between two land surfaces, because the snow has large effects on the surface albedo in winter. The rainfall is an important factor in summer on the surface albedo, while the difference of the surface albedo is 0.01 only between two land surfaces. The differences of the surface albedo can also be 0.04 in autumn due to vegetation growing. The seasonal-average surface albeo from 2003―2005 is 0.25, 0.22, 0.24, 0.32 respectively in spring, summer, autumn and winter on the degraded grassland surface,while it is 0.25, 0.21, 0.22, 0.33 respectively in spring, summer, autumn and winter on the cropland surface. The surface albedo becomes smaller with the increase of solar elevation angle. When the solar elevation angle is greater than 40°, the surface albedo changes very little and tends to be a constant. The surface albedo has negative exponent functions with soil moisture in the growing season.

关键词：半干旱地区表面反照率土壤湿度草地退化

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Textual research of Wudu earthquake in 186 B.C. in Gansu province, china and discussion on its causative structure

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Acta Seismologica Sinica(English Edition) 2007年第6期20卷 696-707页

作者：袁道阳雷中生何文贵熊振葛伟鹏刘兴旺刘百篪 Lanzhou Institute of Seismology China Earthquake Administration earthquake administration of Jiangsu province

On the basis of the textual research on the historical earthquake data and the field investigation of Wudu earthquake occurred in 186 B.C., we suggest that the earthquake parameters drawn from the present earthquake catalogs are not definite and amendments should be made. The heavily-damaged area of this earthquake should be located between Jugan township of Wudu County and Pingding township of Zhouqu County. Its epicenter should be in the vicinity of Lianghekou in Wudu County with a magnitude of about 7-7 1/4 and an intensity of about IX-X. The major axis direction of the heavily-damaged area should be in the WNW direction that is approximately consistent with the strike of the middle-east segment of Diebu-Bailongjiang active fault zone, and the origin time should match up to that of the latest paleoearthquake event [before （83±46） B.C.] obtained by the trench investigation. Certain seismic rupture evidences are still preserved on this fault segment. Therefore, we propose on the basis of comprehensive analysis that the causative structure of the M 7-7 1/4 Wudu earthquake in 186 B.C. should be in the middle-east segment of Diebu-Bailongjiang active fault zone.

关键词： Wudu earthquake in 186 B.C. textual research of historical earthquake causative structure Diebn-Bailongjiang fault zone

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