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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 {4., Chengdu 61004., china 1. Institute of Geophysics China Earthquake Administration Beijing 100081 China 2. Earthquake administration of Sichuan province Chengdu 610041 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

Nd isotope as the tracer of seawater evolution of early Miocene in the eastern Pacific Ocean

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Chinese Science Bulletin 2003年第B06期48卷 106-110页

作者： LIU Jihua~(1,2,3), CHEN Lirong~1, WANG Yingxi~4.& HAN Jianxiu~5 1. Institute of Oceanology, Chinese Acadcmy of ences, Qingdao 266071. china 2. Key Lab of Marine Sedimentology and Environmental Geology, First Institute of Oceanograpgy, State Oceanic administration, Qingdao 266061. china 3. Graduate School, Chinese Academy of Sciences, Beijing 100039. china 4. Modern Analysis Center, Nanjing University. Nanjing 210093. china 5. Guangzhou Marine Investigation Bureau, Guangzhou 510760. china 1. Institute of Oceanology Chinese Academy of Sciences 266071 Qingdao China 2. Key Lab of Marine Sedimentology and Environmental Geology First Institute of Oceanograpgy State Oceanic Administration 266061 Qingdao China 3. Graduate School Chinese Academy of Sciences 100039 Beijing China 4. Modern Analysis Center Nanjing University 210093 Nanjing China 5. Guangzhou Marine Investigation Bureau 510760 Guangzhou China

Fifty-six samples of nannofossil ooze were collected from Core PC5794.in the northern equatorial Pacific at 5 cm intervals. With the methods of mass spectrometer (VG354. and ICP, the Nd isotopic compositions (εNd(t)), Mn contents and Mg/Sr ratios of carbonate phase have been analyzed. CaCO3 contents of bulk sediments were obtained by dissolution of 0.5 mol/L HCl. Based on these data, the high-resolution εNd(t) profile of seawater in early Miocene with core depth(or time) have been established. The values of εNd(t) range from -6.2 to -2.97 and 4.fluctuation cycles existed during 24.06-22.02 Ma. 4.low εNd(t) values (about -6.4. correspond to high CaCO3 contents, which implicates that there were 4.cold epochs or 4.times of Antarctic Bottom Water activity. They occurred at the time of 24.06 Ma, 23.85 Ma,22.88 Ma and 22.26 Ma, respectively. High εNd(t) values correspond to the high Mn contents and high values of Mg/Sr ratio, which indicates the existence of 4.intense hydrothermal activity periods during 24.06-22 Ma, the durations of them are 4.05-23.98 Ma, 23.69-23.15 Ma, 22.74.22.37 Ma and 22.06-22.02 Ma, respectively.

关键词：同位素钕示踪原子海水演化中新世太平洋微化石分光计持续期海水样品

Cultural Relevance for Rural Community Development in china: A Case Study in Bai, Jingpo and Huyaodai Communities of Yunnan province

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Chinese Journal of Population,Resources and Environment 2007年第2期5卷 78-83页

作者： Cai Kui1, Du Juan2, Dai Cong3, Hu Huabin4.1. Center for Rural Development Studies, Yunnan University, Kunming Yunnan 650091, china 2. Institute of Ethnology, Yunnan Academy of Social Science, Kunming Yunnan 650034. china 3. Institute of Economics, Yunnan Academy of Social Science, Kunming Yunnan 650034. china 4. Xishuangbanna Tropical Botany Garden, Chinese Academy of Sciences, Kunming Yunan 650223, china Center for Rural Development Studies Yunnan University Kunming Yunnan 650091 China Institute of Ethnology Yunnan Academy of Social Science Kunming Yunnan 650034 China Institute of Economics Yunnan Academy of Social Science Kunming Yunnan 650034 China Xishuangbanna Tropical Botany Garden Chinese Academy of Sciences Kunming Yunnan 650223 China

A three-year study over the Bai, Jingpo and Huayaodai communities in Yunnan province reveals that the community development is significantly influenced in various ways by such cultural factors as the concepts of development; concepts and traditions of inter-community relationships, consumption, mar- riage and gender; patterns of decision-making and production, resource and income allocation; as well as the role of information dissemination systems, religion and ritual. Based on the analysis over the interactive relevance between each factor and community development, some strategies and methods for dealing with such a cultural relevance in development projects are recommended.

关键词： ethnic minority cultural relevance community development

Zircon SHRIMP U-Pb dating for the Cangshuipu volcanic rocks and its implications for the lower boundary age of the Nanhua strata in South china

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Science Bulletin 2003年第16期48卷 1663-1669页

作者： WANG Jian1, LI Xianhua2, DUAN Taizhong3, LIU Dunyi4. SONG Biao4. LI Zhongxiong1 & GAO Yonghua5 1. Chengdu Institute of Geology and Mineral Resources, china Geologi-cal Survey, Chengdu 610082, china 2. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 51064., china 3. Colorado School of Mines, Golden, CO 804.1-1887, USA (Present address: Marathon Oil Company, Houston, TX 77056-2725, USA) 4. Institute of Geology, Chinese Academy of Geological Sciences, Bei-jing 100037, china 5. Graduate School of the Chinese Academy of Geological Sciences, Beijing 100037, china Correspondence should be addressed to Wang Jian (e-mail: jianwang@ ***) Chengdu Institute of Geology and Mineral Resources China Geological Survey Chengdu 610082 China Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Colorado School of Mines Golden CO 80401-1887 USA Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Graduate School of the Chinese Academy of Geological Sciences Beijing 100037 China

The continental volcanic rocks and volcaniclas-tic sedimentary conglomerates of the Cangshuipu Formation occur well in Yiyang of Hunan province, consisting of a wedge-shaped succession of Neoproterozoic strata that over-lie with high-angle unconformity the flysch turbidites of the Lengjiaxi Group in the Upper Mesoproterozoic Eonothem. SHRIMP zircon U-Pb dating gives a weighted mean age of 814. 12 Ma for the dacitic volcanic agglomerates from the lowest part of the volcanic rocks in the Cangshuipu Forma-tion. This age is younger than previously reported values of 921—933 Ma for the volcanic rocks from the Cangshuipu Formation. Our new dating represents the lower boundary age of the Neoproterozoic System in the studied area. The younger age for the Cangshuipu volcanic rocks is supported by the following observations: （1） Lower Neoproterozoic strata （814.1000 Ma） are missing in the studied area; （2） the Nanhua rift system was initiated at about 820 Ma; and （3） an age of820 Ma may be taken as the lower boundary tim-ing of the Nanhua System （even Neoproterozoic） in South china.

关键词： Zicon U-Pb dating Neoproterozoic volcanics rift basin Nanhua System.

Gravity Changes Before Large Earthquakes in china: 1998-2005

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地球空间信息科学学报（英文） 2011年第1期14卷 1-9页

作者： ZHAN F. Benjamin ZHU Yiqing NING Jinsheng ZHOU Jiangcun LIANG Weifeng XU Yunma School of Resource and Envirorunental Science Wuhan University 129 Luoyu Road Wuhan 430079 China Texas Center for Geographic Information Science Texas State University San Marcos TX 78666 USA Institute of Geodesy and Geophysics Chinese Academy of Sciences 340 Xudong Street Wuhan 430077 China Second Crust Monitoring and Application Center China Earthquake Administration Xi'An 710054 China School of Geodesy and Geomatics Wuhan University 129 Luoyu Road Wuhan 430079 China

Although it is well known that coseismic gravity changes take place during an earthquake, previous research has not yielded convincing evidence demonstrating that significant gravity changes occur before large earthquakes. Furthermore, even if we suspect that gravity changes occur before large earthquakes, we have yet to demonstrate how to consistently observe these changes for useful earthquake forecast that would bring benefits to society. We analyzed ground gravity survey data obtained in 1998, 2000, 2002, and 2005 at stations of the Crustal Movement Observation Network of china (CMONOC) and examined gravity changes be-fore the occurrence of nine large (Ms≥6.8) earthquakes that ruptured within or near china's Mainland and Taiwan from November 2001 to August 2008. Results from this analysis show that significant gravity changes occurred across a large region before each of these nine large earthquakes, and these changes were detected by repeated ground gravity surveys through CMONOC. Although these gravity changes were significant, more research is needed to investigate whether these gravity changes could be viewed as precursors of large earthquakes. Limitations and uncertainties in the data include sparseness of the gravity monitoring network, long time intervals between consecutive gravity surveys, inevitable measurement errors, hydrological effects on gravity, and effects of vertical crustal movements on gravity. Based on these observations, we make several recommendations about possible future direc-tions in earthquake-related research using gravity monitoring data.

关键词： earthquake gravity seismology china Wenchuan geodesy GIS

Distribution and identification of the low-velocity layer in the northern South china Sea

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Progress in Natural Science:Materials International 2007年第5期17卷 591-600页

作者： Zhao Minghui, Qiu Xuelin, Xu Huilong, Shi Xiaobin, Wu Shimin , Ye Chunming and Xia Shaohong (Key Laboratory of Marginal Sea Geology, South china Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, china Earthquake administration of Guangdong province, Guangzhou 510070, china) [a]Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou China [b]Earthquake administration of Guangdong province Guangzhou China

The low-velocity layer (LVL), closely related with tectonic activities and dynamic settings, has always been a hot topic in the deep crustal structure studies. The deep seismic (OBS/OBH) and onshore-offshore experiments have been extensively implemented in the northern South china Sea (SCS) since the 1990s. Six seismic profiles were finished on the northern margin of SCS by domestic and international cooperations. The features of crustal structures were revealed and five velocity-inversion layers were discovered. Among them three LVLs with 3.0—3. 5 km·s-1 velocity are located in the sedimentary structure (2.0—6.0 km in depth and 2.0—4. 6 km in thickness) of the Yinggehai Basin and Pearl River Mouth Basin. They were identified by the reflective and refractive phases for their shallow depth. The other two LVLs with 5.5—6.0 km·s-1 velocity generally existed in the middle crust (7.0—18.0 km in depth) with an about 2.5—6.0 km thickness in the transitional crustal structure of the northeastern and northwestern SCS. They were detected by the refractive phase from their overlain and underlying layers. We explored the possible tectonic formation mechanisms combining with previously reported results, which provided evidence for the formation and evolution of SCS.

关键词： low-velocity layer deep crustal structure the northern South china Sea OBS/OBH and onshore-offshore seismic experiments.

关于印发《山东省化工园区管理办法》的通知(鲁工信化工〔2023〕266号)

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山东省人民政府公报 2024年第2期 106-110页

作者： 1.山东省工业和信息化厅 2.山东省发展和改革委员会 3.山东省自然资源厅 4.山东省生态环境厅 5.山东省交通运输厅 6.山东省水利厅 7.山东省应急管理厅山东省工业和信息化厅山东省发展和改革委员会山东省自然资源厅山东省生态环境厅山东省交通运输厅山东省水利厅山东省应急管理厅

SDPR-2023-004.009各市工业和信息化局、发展改革委、自然资源局、生态环境局、交通运输局、水利局、应急局:现将《山东省化工园区管理办法》印发给你们,请认真贯彻执行。2023年12月25日山东省化工园区管理办法第一章总则第一条为进一... 详细信息

SDPR-2023-004.009各市工业和信息化局、发展改革委、自然资源局、生态环境局、交通运输局、水利局、应急局:现将《山东省化工园区管理办法》印发给你们,请认真贯彻执行。2023年12月25日山东省化工园区管理办法第一章总则第一条为进一步加强和规范化工园区、专业化工园区(以下简称园区)管理,根据《化工园区建设标准和认定管理办法(试行)》(工信部联原〔2021〕220号)、《山东省化工园区扩区管理办法(试行)》(鲁政办字〔2022〕118号)等文件规定,制定本办法。

关键词：化工园区认定管理办法加强和规范生态环境自然资源山东省

Research on the Logistics Outsourcing Based on E-commerce

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Research on the Logistics Outsourcing Based on E-commerce

Responses of soil respiration in non-growing seasons to environmental factors in a maize agroecosystem,Northeast china

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 {4. 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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Chinese Science Bulletin 2010年第24期55卷 2723-2730页

作者： LI RongPing1,2,3, ZHOU GuangSheng1,4.& WANG Yu1,3 1 State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, china 2 Institute of Atmospheric Environment, china Meteorological administration, Shenyang 110016, china 3 Graduate University of Chinese Academy of Sciences, Beijing 10004., china 4.Chinese Academy of Meteorological Sciences, Beijing 100081, china State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing 100093 China Institute of Atmospheric Environment China Meteorological Administration Shenyang 110016 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Chinese Academy of Meteorological Sciences Beijing 100081 China

Based on continuous three-year measurements (from 2004.to 2007) of eddy covariance and related environmental factors, environmental controls on variation in soil respiration (Rs) during non-growing season were explored in a maize agroecosystem in Northeast china. Our results indicated that during non-growing seasons, daily Rs was 1.08-4.08 g CO2 m-2 d-1, and the lowest occurred in late November. The average Rs of non-growing season was 4.6.06 ± 20.01 g CO2 m-2, accounting for 11% of the gross primary production (GPP) of the growing season. Additionally, at monthly scale, the lowest value of Rs appeared in January or February. From the beginning to the end of non-growing season, daily Rs tended to decrease first, and then increase to the highest. There was a significant quadratic curve relationship between Rs and soil temperature at 10 cm depth when soil temperature was more than 0°C (P4. of Rs in growing season, indicating that it plays a critical role in assessing the carbon budget in maize agroecosystem, Northeast china.

关键词：中国东北地区农田生态系统生长季节土壤呼吸环境因素玉米土壤含水量反应