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On the siltation of the middle Yangtze River

Science china Earth Sciences 2004年第5期47卷 463-480页

作者： YIN Hongfu1, CHEN Guojin2. LI Chang抋n1 & WEI Yuan3 1. School of Earth Sciences, china University of Geosciences, Wuhan 430074, china {2., hubei bureau of geology and mineral resources, Jingzhou 434100, china 3. Geological Survey of Jiangxi Province, Nanchang 3302.1, china china Univ Geosci Sch Earth Sci Wuhan 430074 Peoples R China hubei Bur Geol & mineral {2. Hydrogeol Team Jinzhou 434100 Peoples R China Geol Survey Jiangxi Province Nanchang 3300201 Peoples R China

About 5.2.108 t/a of silts from the upper reach of the Yangtze River are transported through Yichang into the middle Yangtze River. The middle Yangtze itself and its tributaries yield ca. 0.8×108 t silts annually. Of this total 6×108 t/a input of silts, ca. 1.2.108 t/a are deposited within the river artery and lakes, while ca 4.83×108 t/a are at first transported into the lower reach through Datong, and then either deposited along the river and the Yangtze Delta, or output into the sea. Along the middle Yangtze River silting generally exceeds scouring, but the spatial and temporal distributions of scour-and-fill, as well as its distribution in the river valley transections, are uneven. Along the Yichang-Chenglingji and Jiujiang-Datong Segments of the middle Yangtze, scouring exceeds or equals silting. Silting mainly occurs along the Luoshan-Wuhan-Huangshi Segments with Wuhan as the pivotal point, as well as in the Dongting and Poyang Lakes. Even in these silting-dominated areas, there are times and parts of segments that scouring prevails. As to the transections, generally the river channel of main stream is scouring-dominated, forming V-shaped sections to a depth of 2.30 m or more, whereas the floodplains and bar islands are silting-dominated, forming wide and relatively high flats, which are often artificially transformed into protected embankments. Because the Jingjiang Levee separates the Jianghan Plain from Yangtze to the south, little has been deposited in that plain except a few sediments from the Han River—a tributary of the middle Yangtze. This factor plus the tectonic sag of that plain has made the altitude of plain surface several meters lower than that of the levee in most of the areas. Sil-tation along the Luoshan-Wuhan-Huangshi Segments has resulted in the elevation of flood level in this and upstream segments. River channel scouring plus floodplain silting have caused the transections of the middle Yangtze valley typically with deep channel and height

关键词： the middle Yangtze, scour-and-fill, siltation, silt utilization.

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Geochemical characteristics of the independent cadmium deposit, Niujiaotang, Duyun, Guizhou

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Chinese Science Bulletin 1999年第S2期44卷 61-63页

作者： LIU Tiegeng~1, YE Lin~1 and CHEN Guoyong~2.1. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002. china 2. team No. 104, {2. of geology and mineral resources, Duyun, Guizhou 558000, china Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China team No. 104 Bureau of Geology and Mineral Resources Duyun Guizhou 558000 China

A large independent cadmium deposit has been found at Niujiaotang, Duyun, in recent years. To the bestof our knowledge this represents the first case of its kind in the world. With a reserve of over 5 000 tonsof cadmium, the deposit is unique in its high concentrations of cadmium which are tens of to over onehundred times higher than in ordinary cadmium mineralizations associated with Pb-Zn deposits. 1 Geological characteristics The Niujiaotang deposit is located at the southwest margin of the Yangtze Plate. The region consistsof a thick sedimentary cover ranging from Sinian to Triassic in age overlying unconformably the basementof Mid-Proterozoic metamorphosed volcanic-sedimentary rocks. Lower Cambrian carbonate strata arcoutcropped in the mining district. Cadmium mineralizations, with seven layers recognizable, are devel-

关键词： independent cadmium deposit mode of occurrence of cadmium inclusion fluid feature stable isotope geochemistry.

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Isotope hydrogeological Study of Karst Water in the Lu' an Mining District and the Xin'ancun Spring Basin, Shanxi

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Acta Geologica Sinica(English Edition) 1994年第3期68卷 311-328页

作者： Gong Zizhen, Li Zhaolin, Zhang Zhigan, Institute of Karst geology, Ministry of geology and {2. resources, Guilin, GuangxiFu Liqun and Zuo Baolin The First hydrogeological Party, Ministry of Coal Industry, Handan, Hebei Chinese Academy of Geological Sciences Beijing China

Isotope hydrogeological study has shown that the water supply exploration area in the Lu' an coal mine may be divided into four zones of hydrodynamic conditions and the Xin'ancun Spring Basin where the mine is located may be divided into three Middle Ordovician karst water systems. This paper discusses the features of recharge, runoff and discharge of karst water in various zones, and hydrogeological parameters such as the age, flow rate and natural recharge of karst water have been estimated.

关键词： isotope karst water main runoff zone natural recharge age

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寿阳—阳泉煤矿区控气水文地质条件分析

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天然气工业 2005年第1期25卷 33-36页

作者：傅雪海王爱国陈锁忠杨永国中国矿业大学资源与地球科学学院中国煤炭第一勘探局一一九队

基于煤田地质勘探资料,分析了寿阳—阳泉煤矿区主力煤层含气量的区域分布规律和中奥陶统灰岩、太原组灰岩和山西组砂岩的地下水动力场、水化学场特征,探讨了煤层含气量与地下水水位或矿化度之间的耦合关系,得出了地下水滞流地区,... 详细信息

基于煤田地质勘探资料,分析了寿阳—阳泉煤矿区主力煤层含气量的区域分布规律和中奥陶统灰岩、太原组灰岩和山西组砂岩的地下水动力场、水化学场特征,探讨了煤层含气量与地下水水位或矿化度之间的耦合关系,得出了地下水滞流地区,矿化度高、煤层含气量高的结论。

关键词：煤成气矿化度地下流体力学水化学含气量水文地质条件寿阳—阳泉煤矿区

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COUNTERMEASURES AGAINST LANDSLIDE GEOLOGICAL DISASTERS IN TIBET

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Natural Disaster Reduction in china 2002年第4期 37-41页

作者： Yang Quanzhong (No. 915 hydrogeological team, {2. of geology & Mining, Meishan 62.010, Sichuan Province, china)

The special natural geographical and geological environment of Tibet, in combination with increasingly intensified human (engineering and economic) activities, is responsible for the increasingly serious landslide disasters in terms of scope, scale, frequency and degree of damage. The article presents systematically the development, distribution and major damaging effects of landslide geological disasters in Tibet, provides a preliminary forecast on the tendency of landslide formation, and proposes some strategies and measures for preventing & reducing the disasters. It may serve as a basis for decision making by governments at various levels in their fighting against landslide disasters.

关键词： Tibet landslide disasters countermeasures

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An Investigation of Deep Electrical Structure of Qiangtang Basin,Xizang(Tibet),china

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Journal of Earth Science 1995年第2期14卷 92-96页

作者： Zhang Shengye Wei Sheng Wang JiayingDepartment of Applied Geophysics, china University of Geosciences, Wuhan 430074Zhang Xianjue5th Geophysical Prospecting team of Central South {2. of Petroleum geology , Ministry oj geology and mineral resources, X

In order to study the deep geoelectrical structure and the regional geological structure and detect potential oil and gas areas in Qiangtang basin in northern Xizang (Tibet ), 2.2.MT soundings were conducted along three N - S MT profiles across the basin .The MT results indicate that the south and north parts of the Qiangtang basin have a good contrast in the deep electri cal structure . In the south Qiangtang , there are generally two high conductivity layers in the crust . The first is at a depth of about 10 - 2. km and possesses a resistivity of about 10 - 80 Ωm .The second ,the high conductivity layer in the lower crust ,is at a depth of about 40 - 70 km with 3 - 50 Ωm .In the north Qiangtang .there is generally one high conductivity layer .It is at a depth of about 10 - 30 km and the resistivity is about 1-60 Ωm . The thickness of the second high conductivity layer in both the south Qiangtang and the Bangong-Nujiang suture is much greater than that of the first .The thickness of the lithosphere is about 110-12. km for the Bangong-Nujiang suture ,115 km for the south Qiangtang and 100-130 km for the north Qiangtang . On the difference of the deep electrical structures of the crust between the south and the north Qiangtang , we believe that it is related to the eastward flow of the crustal substance .

关键词： MT profile Qiangtang basin deep electrical structure crust and upper man-tle high conductivity layer .

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A study of interaction between surface water and groundwater using environmental isotope in Huaisha River basin

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Science china Earth Sciences 2006年第12期49卷 1299-1310页

作者： SONG Xianfang1, LIU Xiangchao1, 2. XIA Jun1, YU Jingjie1 & TANG Changyuan1, 3 1. Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographical Sciences and Natural Re- sources Research, Chinese Academy of Sciences, Beijing 100101, china 2. College of River and Ocean, Chongqing Jiaotong University, Chongqing 400074, china 3. Chiba University, Chiba 2.3-852., Japan 1. Key Laboratory of Water Cycle and Related Land Surface Processes Institut of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China 2. College of River and Ocean Chongqing Jiaotong University Chongqing 400074 China 3. Chiba University Chiba 263-8522 Japan

The surface water and groundwater are important components of water cycle, and the interaction between surface water and groundwater is the important part in water cycle research. As the effective tracers in water cycle research, environmental isotope and hydrochemistry can reveal the interrelationships between surface water and groundwater effectively. The study area is the Huaisha River basin, which is located in Huairou district, Beijing. The field surveying and sampling for spring, river and well water were finished in 2.02.and 2.03. The hydrogen and oxygen isotopes and water quality were measured at the laboratory. The spatial characteristics in isotope and evolution of water quality along river lines at the different area were analyzed. The altitude effect of oxygen isotope in springs was revealed, and then using this equation, theory foundation for deducing recharge source of spring was estimated. By applying the mass balance method, the annual mean groundwater recharge rate at the catchment was estimated. Based on the groundwater recharge analysis, combining the hydrogeological condition analysis, and comparing the rainfall-runoff coefficients from the 1960s to 1990s in the Huaisha River basin and those in the Chaobai River basin, part of the runoff in the Huaisha River basin is recharged outside of this basin, in other words, this basin is an un-enclosed basin. On the basis of synthetically analyses, combining the compositions of hydrogen and oxygen isotopes and hydrochemistry, geomorphology, geology, and watershed systems characteristics, the relative contributions between surface water and groundwater flow at the different areas at the catchments were evaluated, and the interaction between surface water and groundwater was re- vealed lastly.

关键词： environmental isotope,hydrochemistry,surface water,groundwater,interaction.

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均衡法计算洞庭湖盆孔隙水天然资源

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湖南地质 1989年第2期8卷 52-55页

作者：肖光平湖南省地质矿产局水文二队

洞庭湖是我国第二大淡水湖。以往用补给量代替天然资源的方法计算其孔隙水天然资源,对地表水渗漏量很难计算,可信度低。用均衡法计算洞庭湖盆孔隙水天然资源,回避了直接计算地表水补给量,加深了孔隙水补给排泄的认识,计算结果亦较准确,... 详细信息

洞庭湖是我国第二大淡水湖。以往用补给量代替天然资源的方法计算其孔隙水天然资源,对地表水渗漏量很难计算,可信度低。用均衡法计算洞庭湖盆孔隙水天然资源,回避了直接计算地表水补给量,加深了孔隙水补给排泄的认识,计算结果亦较准确,故此种方法是地处暖湿亚热带、水系高度发育的湖盆孔隙水天然资源计算的较好方法。

关键词：湖孔隙水资源均衡法

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Application of Computer Network in Hydraulic Engineering

Application of Computer Network in Hydraulic Engineering

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2.11年全国电子信息技术与应用学术会议

作者： Wanqiang CHU 1,Mingwei CAO 1,ShengxiangPEI 2.Yuchang ZHANG 2.1 Department of Environmental and Chemical Engineering.Yellow River Conservancy Technical Institute,Kai Feng City,china 2.Henan Provincial bureau of {2. and mineral resources second hydro{2. and Engineering {2. team,zheng zhou,china

With the continuous development of information technology,use the modern computer network technology to support the hydraulic engineering construction and to integrate the water resources,which has important significance to advance hydraulic information and to realize the sustainable development of *** paper discussed the applications of internet technology in hydraulic engineering,and gave the automatic monitoring system structure based on internet technology,and also put forward the possible problems and the corresponding solutions of the network remote monitoring system.

关键词： Internet network hydraulic engineering remote monitoring

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巴丹吉林地区的寒武和奥陶纪地层

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西北地质 1979年第4期 38-57页

作者： Xian Institute of geology and mineral {2. Reserching team , Ningxia bureau of geology 宁夏地质局综合地质研究队西安地质矿产研究所

巴丹吉林地区位于我国北边,与蒙古人民共和国相毗邻,它包括弱水河以东、巴丹吉林沙漠及其以北的地区(图1)。由于地域偏僻,该区地质研究程度颇低,只进行过一百万分之一的区域地质测量,从未有过关于寒武、奥陶系的报导。1977—1978年,由... 详细信息

巴丹吉林地区位于我国北边,与蒙古人民共和国相毗邻,它包括弱水河以东、巴丹吉林沙漠及其以北的地区(图1)。由于地域偏僻,该区地质研究程度颇低,只进行过一百万分之一的区域地质测量,从未有过关于寒武、奥陶系的报导。1977—1978年,由宁夏地质局综合研究队和西安地质矿产研究所部分地层古生物工作者组成的地层小组,对沙漠以北的古生代地层进行了调查,首次在该区发现了富含动物化石的寒武系和奥陶系,现将其报导如下。

关键词：地层硅质岩硅岩化学岩动物群动物区系奥陶纪三叶虫薄层灰岩上寒武统晚寒武世寒武纪中寒武统下奥陶统巴丹吉林

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